PCF7947 Original Transponder – NXP High-Security Automotive Immobilizer IC

The PCF7947 Transponder is an original NXP automotive immobilizer IC widely used in modern remote keys and keyless entry systems. Designed for high-security vehicle authentication, this chip integrates both the immobilizer transponder and remote control functions in a compact SMD package.

With excellent RF performance, stable signal response, and strong encryption capability, the PCF7947 is the preferred OEM component for many European vehicles. It is ideal for professional key programming, remote repair, refurbishment, and OEM key replacement applications.

🔧 Features
• Model: PCF7947
• Type: High-security automotive immobilizer/transponder IC
• Manufacturer: NXP Semiconductors
• Package: SMD (Surface-Mount Device)
• Function: Immobilizer communication + remote key control
• Performance: Strong RF reception, OEM-grade encryption, stable communication
• Use Case: Key programming, remote repair, OEM key rebuilding
• Weight: ~0.2 g

🧩 Typical Applications
• Renault remote keys
• Opel/Vauxhall keys
• Fiat and other European-market vehicles
• Keys requiring combined transponder + remote IC integration

📌 Advantages
• OEM quality
• High-security architecture
• Ideal for refurbishment of original key PCBs
• Compatible with many automotive programming tools