Littelfuse TP7.0SMD-XC Automotive TVS Diode

Introduction

The Littelfuse TP7.0SMD-XC is an automotive transient voltage suppressor (TVS) diode intended to help protect electronic circuits from sudden voltage spikes. Its high surge-handling capability and surface-mount format make it suitable for robust protection designs in vehicle electrical systems and other demanding DC-powered equipment.

Part Description

The TP7.0SMD-XC is a surface-mount TVS diode from Littelfuse designed to clamp damaging transient voltages before they can reach sensitive downstream electronics. It has a 24 V reverse stand-off voltage, allowing it to be used on circuits that operate below this voltage while remaining inactive during normal operation.

When an overvoltage transient occurs, the diode responds quickly and diverts surge energy away from protected circuitry. It is rated for up to 7000 W peak pulse power dissipation, providing protection against high-energy events such as load dump conditions, lightning-induced surges, and electrostatic discharge (ESD). Its automotive-oriented design makes it particularly useful where electrical noise and transient exposure are common.

Applications

Potential applications for the TP7.0SMD-XC include:

• Automotive 12 V and 24 V electrical protection circuits
• Battery-connected electronic modules
• Automotive lighting and LED driver protection
• Engine-control and powertrain electronics
• Infotainment and dashboard electronics
• Vehicle communication and sensor modules
• DC power input protection
• Industrial control equipment
• Outdoor electronic systems exposed to induced surge events
• Power distribution and load-switching circuits

Industries

Industries that may use this TVS diode include:

• Automotive and transportation
• Electric vehicle and charging infrastructure
• Industrial automation
• Heavy equipment and agricultural machinery
• Marine electronics
• Telecommunications equipment
• Energy and power-management systems
• Security and surveillance systems
• Smart infrastructure and IoT hardware
• Consumer and commercial electronics manufacturing

Usage Ideas

1. Automotive ECU Input Protection
   Place the TP7.0SMD-XC across the power input of an electronic control unit to help protect the module from load dump and battery-line transients.

2. Vehicle LED Lighting Module
   Add the diode to the supply input of an exterior LED lighting controller to improve resistance to voltage spikes caused by switching loads or wiring disturbances.

3. Industrial 24 V DC Controller
   Use the TVS diode at the input of a 24 V industrial controller or sensor hub to clamp transient events on field wiring and DC power rails.

Conclusion

The Littelfuse TP7.0SMD-XC is a high-power automotive TVS diode designed for circuits requiring dependable transient-voltage protection. With a 24 V reverse stand-off voltage, fast response characteristics, 7000 W peak pulse power capability, and a compact surface-mount design, it is well suited for protecting automotive, industrial, and other DC electronic systems from damaging surge events.