THB Group Co., Ltd.

THB's transmission system solution covers low- and high-voltage wiring harness assemblies for the body, engine compartment, instrument panel, roof, doors and rear bumper, delivering power distribution and signal transmission across the whole vehicle and providing the electrical backbone for vehicle electrification, intelligence and connectivity.

Solution: transmission system; Composition: low-voltage harness assemblies and NEV high-voltage harness assemblies; Coverage: body, engine compartment, instrument panel, roof, doors, rear bumper; High-voltage circuits: power battery, motor three-phase, motor controller, compressor

• High-voltage power distribution
• Vehicle wiring

With more than 40 years dedicated to automotive connectors, THB is a drafter of national and industry standards and offers a complete connector-system portfolio covering housings, terminals, wire ends, high-speed connectors, high-voltage connectors, board-end connectors, rubber seals and plastic fasteners, meeting the complex demands of active safety, electrification, autonomous driving and data connectivity.

Solution: connection system; Registered models: 3186; Product families: housings, terminals, wire ends, high-speed connectors, high-voltage connectors, board-end connectors, rubber parts, plastic fasteners; High-voltage capability: operating voltage ≤1000 V DC, rated current 200 A @85°C, 360° shielding, sealing IP67&IP6K9K

• High-voltage power distribution
• Vehicle wiring

THB's intelligent control solution provides domain controllers, enhanced body controllers (eBCM), smart front junction boxes (SEJB), smart fuse boxes (SJB), fully intelligent power distribution units, adaptive driving light controllers, leveling motors, wireless charging modules and other body-electronics products, achieving integrated control and smart power distribution of vehicle body electrics.

Solution: intelligent control; Series: domain controllers, eBCM, SEJB, SJB, fully intelligent distribution unit, adaptive driving light controller, tail lamp controller, leveling motor, wireless charging module; Control: CAN communication, HSD outputs replacing conventional relays, fuse blow-out diagnostics, relay diagnostics; Safety: isolation switch, integrated smart fuse eFuse, circuit voltage/current/temperature monitoring

• Body manufacturing
• Vehicle assembly

THB's low-carbon mobility solution answers the electrification and intelligence needs of new energy vehicles with Fakra, HSD and Ethernet high-speed high-frequency harnesses, lightweight ultrasonic-welded aluminum harnesses, aluminum busbar harnesses and small cross-section aluminum harnesses, plus customized products such as battery-swap connectors and 2-in-1 charging inlets.

Solution: low-carbon mobility; Series: Fakra harness, HSD harness, Ethernet harness, high-speed connectors, ultrasonic-welded aluminum harness, aluminum busbar harness, FPC/FFC harness, small cross-section aluminum harness, battery-swap high-voltage series, 2-in-1 inlet high-voltage series; Lightweighting: aluminum conductors replacing copper, flat FPC/FFC harnesses; Charging: 32 A AC / 250 A rated DC, 536 A maximum inlet

• NEV supporting products

Used to connect the electrical devices of the vehicle body and to transmit the power and signals required for body control.

Positioning: power and signal transmission for body electronics; Category: vehicle low-voltage harness assembly

• Body electronics
• Vehicle wiring

Connects the engine ECU with the engine sensors and actuators, supporting normal operation of the engine.

Positioning: connection between engine ECU and sensors/actuators; Category: vehicle low-voltage harness assembly

• Engine control
• Vehicle wiring

Connects the electrical components inside the front compartment so that the front lamps, cooling system and braking system operate normally.

Positioning: connection of front-compartment electrical components; Systems covered: front lamps, cooling system, braking system

• Front lamps
• Cooling system
• Braking system

Connects the electrical devices on the instrument panel and enables the human-machine interaction functions of the vehicle.

Positioning: connection of instrument-panel devices; Category: vehicle low-voltage harness assembly

• Human-machine interaction
• Instrument panel

Connects the electrical devices on the vehicle roof, mainly realizing the dome lamp, the microphone and the power sunroof.

Positioning: connection of roof devices; Functions covered: dome lamp, microphone, power sunroof

• Dome lamp
• Power sunroof
• Vehicle microphone

Connects the electrical devices of the door, mainly realizing the window lift and door switch functions.

Positioning: connection of front-passenger-door devices; Functions covered: window lift, door switch

• Window lift
• Door switch

Connects the electrical devices of the rear bumper, mainly realizing the radar and the rear lamps.

Positioning: connection of rear-bumper devices; Functions covered: radar, rear lamps

• Reversing radar
• Rear lamps

Connects the electrical devices of the driver door, mainly realizing the window lift and door switch functions.

Positioning: connection of driver-door devices; Functions covered: window lift, door switch

• Window lift
• Door switch

This high-voltage harness assembly links the traction battery with the power distribution unit, forming the main energy path from which the vehicle's high-voltage network is fed.

Category: NEV high-voltage harness assembly; Positioning: power battery to power distribution unit; Function: high-voltage power distribution

• High-voltage power distribution
• Power battery

Serves as the power link between the motor controller and the drive motor, delivering the three-phase energy that propels the vehicle.

Category: NEV high-voltage harness assembly; Positioning: motor controller to motor; Function: three-phase power transmission to the drive motor

• Drive motor
• Electric drive system

Connects the power distribution unit with the motor controller, carrying the high current required for traction power conversion.

Category: NEV high-voltage harness assembly; Positioning: power distribution unit and motor controller; Function: high-voltage current transmission

• High-voltage power distribution
• Motor controller

Connects the power distribution unit to the electric compressor, supplying the high voltage needed for battery cooling and cabin air conditioning.

Category: NEV high-voltage harness assembly; Positioning: power distribution unit to compressor; Function: high-voltage supply of the electric compressor

• Electric compressor
• Thermal management

A body domain-control product that integrates the body control module (BCM), the passive entry and start system (PEPS) and conventional fuse-based distribution, achieving integrated control of the vehicle body electrics.

Integrated functions: BCM, PEPS, conventional fuse distribution; Communication: CAN; Distribution method: HSD replacing conventional relays; Diagnostics: internal fuse blow-out diagnostics, internal relay diagnostics

• Body control
• Vehicle assembly

THB's adaptive driving light controller integrates LED driving and lighting logic control in one unit, supporting AFS and ADB functions and providing both drive and logic control for adaptive headlamps.

Maximum output power: approx. 130 W (constant-current source); Constant-current outputs: 12; CAN channels: 2; Stepper-motor drives: 2; Other outputs: fan drive, NTC acquisition and multiple HSD outputs; Functions: AFS and ADB support

• Adaptive headlamps
• Intelligent driving lighting

An intelligent lighting system that automatically adjusts the headlamp pitch angle in real time according to road conditions and vehicle status, always giving the driver the best possible road illumination.

Category: intelligent lighting control system; Adjustment: real-time automatic pitch-angle adjustment of headlamps; Inputs: road conditions and vehicle status

• Headlamp leveling
• Intelligent lighting

The headlamp controller integrates LED driving and lighting logic control, managing the lighting functions and light-signature effects of the headlamps and the grille lamp.

Maximum input power: approx. 100 W; Constant-current outputs: 7; CAN channels: 2; HSD outputs: 3; Controlled loads: 66 headlamp LEDs and 63 grille-lamp LEDs; Functions: lighting functions and light-signature effects

• Headlamp control
• Light-signature effects

The rear lamp controller (RCM) is placed between the BCM and the tail-lamp LED modules, receiving lighting commands from the BCM via CAN and realizing both the basic tail-lamp functions and the tail-lamp light signatures.

Product code: RCM; Mounting position: between BCM and tail-lamp LED modules; Input: BCM lighting commands via CAN; Output: HSD and LIN communication controlling tail-lamp LED modules; Functions: basic tail-lamp functions and light signatures

• Tail lamp control
• Light-signature effects

A headlamp height adjustment module that controls the vertical movement of the headlamps according to the driver's operation.

Category: headlamp height adjustment module; Controlled object: headlamp vertical movement; Trigger: driver operation

• Headlamp leveling
• Vehicle assembly

Adjusts the headlamp beam in the vertical direction to improve the illumination in front of the vehicle; features a built-in structure.

Category: built-in leveling motor; Controlled object: headlamp vertical direction; Function: improved beam pattern

• Headlamp leveling
• Vehicle assembly

A headlamp height adjustment module that controls the vertical movement of the headlamps according to the driver's operation; features an external structure.

Category: external headlamp height adjustment module; Controlled object: headlamp vertical movement; Trigger: driver operation

• Headlamp leveling
• Vehicle assembly

A highly integrated BCM module that combines a conventional body controller with a keyless entry and start module, and additionally supports TPMS signal reception and gateway function expansion.

Integrated modules: BCM and keyless entry/start module (PEPS); Expansion: TPMS signal reception; Gateway: up to 3 CAN gateway channels on customer request

• Body control
• Keyless start

A smart front-compartment product integrating the BCM, the passive entry and start system (PEPS) and conventional fuse-based distribution, with gateway and TPMS reception available on customer request.

Integrated functions: BCM, PEPS, conventional fuse distribution; Communication: CAN; Distribution method: HSD replacing conventional relays; Diagnostics: fuse blow-out diagnostics, relay diagnostics; Expansion: gateway, TPMS signal reception

• Body control
• Front-compartment distribution

The smart junction box integrates the BCM and the instrument-panel junction box, and additionally carries the fuse-box power distribution function.

Category: smart junction box; Integration: BCM and instrument junction box; Companion function: fuse-box power distribution

• Distribution box
• Vehicle assembly

A low-power in-vehicle wireless charging device that charges a smartphone inside the car on the basis of wireless power transfer technology.

Category: low-power in-vehicle wireless charger; Technical principle: wireless power transfer; Charging target: in-car smartphones

• Smart cockpit
• In-vehicle charging

Through isolation switches the unit separates low-safety-level loads from the high-safety-level loads related to automated driving, supplies the high-safety loads independently via integrated smart fuses (eFuse), and supports multiple configurations to meet the functional-safety and redundancy requirements of manually driven or autonomous vehicle power grids.

Safety mechanism: isolation switch separating high/low safety-level loads; Supply protection: independent supply via integrated smart fuse eFuse; Diagnostics: circuit voltage diagnostics, current diagnostics, temperature monitoring; Configuration: functional safety and redundancy for manual or autonomous driving power grids

• Intelligent driving
• Vehicle power distribution

FAKRA coaxial cables are high-speed high-frequency lines that transmit RF signals or HD camera signals, composed of FAKRA connectors and coaxial cable.

Transmitted signals: RF signals, HD camera signals; Composition: FAKRA connectors and coaxial cable; Cable class: high-speed high-frequency

• Vehicle cameras
• Autonomous driving perception

HSD harnesses are high-speed data transmission lines used in areas such as head-up displays, instrument screens and large electronic displays.

Transmission type: high-speed data; Application areas: head-up display, instrument screen, large electronic display

• Head-up display
• Smart cockpit

Automotive Ethernet harnesses use unshielded and shielded twisted pairs to meet the signal-rate and network-bandwidth requirements of the vehicle, and are applied in advanced driver assistance systems (ADAS), on-board diagnostics (OBD) and in-vehicle infotainment systems.

Cable types: unshielded twisted pair, shielded twisted pair; Capability: meets in-vehicle signal-rate and bandwidth requirements; Application systems: ADAS, OBD, in-vehicle infotainment

• Intelligent driving
• In-vehicle infotainment

The product range covers automotive Ethernet, FAKRA and Mini-FAKRA high-speed connectors in complete varieties, meeting usage needs in different scenarios.

Coverage: automotive Ethernet, FAKRA, Mini-FAKRA series; Frequency example: DC-6 GHz; Temperature example: -40~105°C

• Smart cockpit
• Intelligent driving

Replaces conventional copper conductors with aluminum wires joined by ultrasonic welding, a lightweight harness solution that is being adopted step by step by many vehicle manufacturers.

Conductor material: aluminum wire; Joining process: ultrasonic welding; Purpose: lightweighting in place of conventional copper harnesses

• New energy vehicles
• Vehicle lightweighting

Aluminum busbar harnesses reduce the processing cost of the conductor and represent one of the future development directions of automotive harnesses.

Conductor structure: aluminum busbar; Feature: reduced conductor processing cost; Positioning: lightweight development direction for automotive harnesses

• New energy vehicles
• Distribution busbar

FPC/FFC harnesses have a flat shape that favors automated production and reduces harness labor cost, making them one of the future development directions of automotive harnesses.

Structural form: flat shape; Manufacturing trait: suited to automated production; Value: reduced harness labor cost

• New energy vehicles
• Automated assembly

Small cross-section aluminum wires offer the advantages of light weight and low cost, giving a clear weight and cost advantage and representing one of the future development directions of automotive harnesses.

Conductor material: small cross-section aluminum wire; Features: light weight, low cost; Positioning: lightweight development direction for automotive harnesses

• New energy vehicles
• Vehicle lightweighting

A large body controller that, on the basis of the conventional BCM, integrates the basic driving of all body electronics together with key functions, lamps, doors, windows, PEPS and anti-pinch functions.

Base platform: conventional BCM; Integrated functions: basic body-electronics drives, key functions, lamps, doors, windows, PEPS, anti-pinch; Product form: large body controller

• Body control
• Smart cockpit

The IDU integrates the body control module (BCM), the passive entry and start system (PEPS) and conventional fuse-based distribution, realizing CAN communication, HSD distribution and diagnostics, with gateway and TPMS reception integrable on demand.

Integrated functions: BCM, PEPS, conventional fuse distribution; Communication: CAN; Distribution method: HSD replacing conventional relays; Diagnostics: fuse blow-out diagnostics, relay diagnostics; Expansion: gateway, TPMS signal reception

• Body control
• Vehicle power distribution

The SEB is an intelligent electrical center that combines the body control module with the instrument-panel junction box and additionally provides fuse-based distribution for the vehicle loads.

Category: smart junction box; Integration: BCM and instrument junction box; Companion function: fuse-box power distribution

• Distribution box
• Vehicle assembly

Integrates LED driving and lighting logic control in one unit to realize light-signature effects of the vehicle lamps.

Integrated functions: LED driving, lighting logic control; Output function: light-signature effect control

• Light-signature effects
• Lamp control

A rich product line of the TH-C INLINE series meeting wire-to-wire connection needs in different scenarios.

Product series: TH-C INLINE; Connection form: wire-to-wire; Coverage: multi-scenario connection needs

• Vehicle wiring
• Wire-to-wire connection

The terminals of the FPC/FFC connector use insulation-displacement crimping to make contact with FPC/FFC conductors, and the housing interface of the FPC connector is interchangeable with conventional connectors.

Terminal form: insulation-displacement crimp; Mated conductors: FPC/FFC; Compatibility: housing interface interchangeable with conventional connectors

• Smart cockpit
• Vehicle displays

Applied in the control sections of EFI engines and automatic transmissions; the metal contacts inside the insulating housing engage with each other to establish the connection, transmitting current and signals through the bulkhead.

Structural principle: metal contacts inside the insulating housing engage for conduction; Function: current and signal transfer; Application location: EFI engine or automatic transmission control section

• Engine control
• Transmission control

Used in the battery-swap modules of new energy vehicles, enabling fast battery-pack replacement and renewed driving range, and meeting the long-range needs of passenger and commercial vehicles.

Application module: NEV battery swap; Core function: fast battery-pack replacement, range renewal; Voltage class: high voltage; Adapted vehicles: passenger and commercial vehicles

• Battery-swap stations
• New energy vehicles

An integrated AC and DC charging inlet that satisfies both the AC and the DC charging needs of new energy vehicles in one socket.

Structure: integrated AC and DC charging inlet; AC charging rating: 32 A; DC charging rated: 250 A; DC charging maximum: 536 A

• AC charging
• DC fast charging

THB connector housings provide the insulating shell and the terminal retention structure for automotive connectors, covering plug-in, bulkhead and other connection types across instrument, clip, cylindrical and blade product families, with more than a thousand registered models.

Registered models: 1074 (searchable in the online product catalog); Product types: TPA, instrument series, clips, snaps, fixing clips, cylindrical series, blade series, wire ends, etc.; Connection types: plug-in, bulkhead, wire-to-function, wire-to-wire; Material example: PBT-FR; Color example: black

• Connector assembly
• Vehicle wiring

THB terminal products include male and female terminals of the blade, cylindrical and pin series, providing the electrical connection between the wire and the contact pair inside the connector.

Registered models: 270 (searchable in the online product catalog); Product types: blade series, cylindrical series, pin series, etc.; Contact ends: male, female, combined male-female; Material example: H65Y; Surface treatment example: tin plating; Size example: 2.8

• Connector assembly
• Harness crimping

THB wire-end products include ring terminals and other wire-end series, used to connect conductor ends to bolts, sheet metal and similar attachment points.

Registered models: 290 (searchable in the online product catalog); Product example: ring terminal; Hole size example: M10; Material example: C21000H08; Surface treatment example: tin plating

• Harness termination
• Ground connection

THB high-speed connectors cover FAKRA, Mini-FAKRA and automotive Ethernet high-speed data interfaces, meeting the high-speed signal transmission needs of smart cockpits and intelligent driving.

Registered models: 87 (searchable in the online product catalog); Transmission rate/frequency: DC-6 GHz; Port count example: 3; Sealing type: sealed; Shielding type: shielded; Operating temperature: -40~105°C; Housing material: PBT; Cable example: RG174&RTK031

• Smart cockpit
• Vehicle cameras
• Ethernet

THB high-voltage connectors provide pluggable, shielded and HVIL-interlocked high-current connections for the high-voltage circuits of new energy vehicles; the typical TY080A series is used to connect the PDU, the battery and power-electronics units.

Registered models: 32 (searchable in the online product catalog); Operating voltage: ≤1000 V DC; Rated current: 200 A @85°C (50 mm²); Operating temperature: -40~140°C; Terminal type: cylindrical terminals; Wire size range: 25~50 mm²; Shielding: 360°; HVIL: supported; Sealing: IP67&IP6K9K

• High-voltage power distribution
• Power battery
• Power electronics

Mounted on the PCB board end and mated with the wire-end housing, supporting board-end connection processes such as mixed bend leads, wave soldering and reflow soldering.

Registered models: 100 (searchable in the online product catalog); Terminal size example: 0.64/2.8; Soldering methods: wave soldering/reflow soldering; Lead type example: mixed bend lead; Temperature example: -40°C~105°C; Housing material example: PA10T GF30; Flammability example: UL94-HB; Pin material example: tin-plated H70 (nickel underplate)

• PCB board-end connection
• Control modules

THB harness rubber parts include door grommets, pass-through parts and other vehicle rubber-plastic protection components, providing sealing and protection where the harness crosses panels and in moving areas.

Registered models: 823 (searchable in the online product catalog); Product types: door rubber parts, pass-through parts, etc.; Material example: EPDM; Fitting end example: 40*25*R5/0.65, 38*25*R3/0.65; Corrugated tube length/inner diameter example: 72/Φ14; Color: black

• Harness protection
• Vehicle sealing

THB plastic fasteners include combined cable ties, clips, snaps and fixing clips, used to secure the harness on the vehicle body and keep its routing in place.

Registered models: 510 (searchable in the online product catalog); Product example: combined cable tie; Material: PA66; Sheet-metal fit: standard M5/M6; Color: black; Product types: cable ties, clips, snaps, fixing clips

• Harness fixing
• Vehicle assembly