Car Transponder Chip

A car transponder chip is a small electronic component embedded within car keys that communicates with the vehicle’s immobilizer system to ensure secure ignition. These chips enhance vehicle security by preventing the engine from starting without the correct, pre-programmed key. When the driver inserts the key into the ignition, the chip transmits a unique signal to the car’s onboard computer. If the code matches, the vehicle will start; otherwise, the ignition remains disabled. Car transponder chips are a vital part of modern vehicle anti-theft systems, offering enhanced protection against unauthorized access and hot-wiring. They are commonly used in keyless entry systems and smart keys, providing a seamless and secure user experience.

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Description

Features

1, Compact Size

Designed to be small and easily embedded into space-constrained housings.

2, Enhanced Reading Performance

Each car transponder chip is optimized for reliable, stable reading and writing performance.

3, Excellent Consistency

Specifically designed for car key applications, ensuring flawless operation without compromising functionality.

Specification:

Item	Car Transponder Chip
Material	EMC /Glass Tube
Working frequency	125KHz, 134.2KHz
Optional Chip	T5577, EM4200, EM4305, Hitag Etc.
Waterproof level	IP68
Storage Temperature	-40℃ ~＋170℃
Operating Temperature	-20℃ ~＋85℃
Encryption:	1), Fixed UID:NXP7935, 7936. 7937, 7938TI 4D63(40 bit), 4D60(40 bit), TI4C, TI 4D60(80 bit), TI 4D83(80 bit), Megmos 48, Temic 8C, 48/8C/46/35/37/3848/8C/46/35/37/38 + TI 4D83(80-bit)48/8C/46/35/37/38 + TI 4D83(80-bit) + SPI (MCU)2), Re-writable UIDNXP 7936 / 46TI 4D63(40-bit)TI 4D83(80-bit)Megmos 48
Personalization	Laser printing logo and number
Application	Smart automobile key

Imobilizer

Since 2000, nearly all vehicles come equipped with an immobilizer system. To start the engine, the driver must use a car key embedded with an RFID transponder, which is much harder to duplicate than a traditional mechanical key. This system has greatly reduced car theft and is now a standard feature in modern vehicles.

Both the ECU (Engine Control Unit) and the RFID transponder in the immobilizer system share a secret value. They exchange this confidential data through a secure process known as encrypted mutual authentication.

When monitored, the communication between these two devices appears as a random signal, making it nearly impossible to interpret. By verifying both the mechanical key blade and the RFID transponder, the system ensures that the engine cannot be started without the correct car key.

Car Transponder Chip

Features

1, Compact Size

2, Enhanced Reading Performance

3, Excellent Consistency

Specification:

Imobilizer

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