CAN Bus Termination Resistor DB9 Female 120 Ohm – ValueCAN

CAN Bus Termination Resistor – DB9 Female with Built-in 120 Ohm

Ensure reliable CAN Bus network communication with this compact DB9 Female Termination Resistor, featuring a built-in 120 Ohm resistor. Designed to prevent signal reflections at the end of a CAN Bus line, this passive adapter is essential for stable, noise-free data transmission in automotive diagnostics, embedded systems, and industrial control applications. Compatible with ValueCAN, Vector, ETAS, and other major CAN Bus interfaces.

Key Features

• Built-in 120 Ohm Resistor: Properly terminates the CAN Bus line to eliminate signal reflections and ensure clean data transmission.
• DB9 Female Connector: Standard DB9 (DE-9) female form factor for direct plug-in to CAN Bus interface devices.
• Passive & Non-Powered: No external power required — simply plug in and go.
• Broad Compatibility: Works with ValueCAN, Vector CANalyzer/CANoe, ETAS INCA, and most standard DB9 CAN Bus tools and adapters.
• Compact & Durable: Rugged construction in a low-profile form factor, ideal for bench testing and in-vehicle use.
• Easy Installation: No tools needed — plugs directly into the DB9 port of your CAN Bus device.

Technical Specifications

• Connector Type: DB9 Female (DE-9)
• Termination Resistance: 120 Ohm
• Power Required: None (passive component)
• High-Concern Chemicals: None
• Compatible With: ValueCAN, Vector, ETAS, and standard DB9 CAN Bus interfaces
• Country of Origin: Made in China

What Is CAN Bus Termination?

CAN Bus networks require a 120 Ohm termination resistor at each end of the bus to match the characteristic impedance of the cable and prevent unwanted signal reflections. Without proper termination, data errors, dropped frames, and bus instability can occur. Learn more about CAN Bus and network communication standards at the NIST Intelligent Systems Division.

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Frequently Asked Questions

Q: What is a CAN Bus termination resistor and why do I need one?

A: A CAN Bus termination resistor (typically 120 Ohm) is placed at each end of a CAN Bus network to match the cable's impedance and prevent signal reflections. Without it, your bus may experience data errors, communication failures, or instability — especially at higher baud rates. This DB9 female terminator plugs directly into your interface device's DB9 port for instant, proper termination.

Q: Is this termination resistor compatible with Vector CANalyzer, ETAS INCA, and ValueCAN devices?

A: Yes. This DB9 female 120 Ohm CAN Bus termination resistor is designed to be compatible with ValueCAN, Vector (CANalyzer, CANoe), ETAS INCA, and other standard DB9-based CAN Bus interfaces and analyzers. Always verify your device's DB9 pin mapping before use.

Q: Does this termination resistor require any power supply?

A: No. This is a fully passive component — it requires no external power source. Simply plug it into the DB9 port of your CAN Bus interface, and it provides immediate 120 Ohm termination.

Q: Can I use this for both high-speed CAN (ISO 11898) and low-speed CAN networks?

A: This resistor is specifically a 120 Ohm terminator, which is the standard for high-speed CAN networks (ISO 11898-2). Low-speed fault-tolerant CAN typically uses different termination values. Please confirm your network's requirements before use.