Littelfuse AK10-FB Axial Leaded TVS Diodes

Introduction

The Littelfuse AK10-FB is an axial-leaded transient voltage suppression (TVS) diode designed to protect electrical and electronic circuits from damaging voltage transients. Built for AC and DC line protection, it delivers fast surge response and high-energy handling in a through-hole package.

Part Description

AK10-FB TVS diodes use Littelfuse Controlled Foldback technology to provide ultra-low clamping performance during transient events. When an overvoltage surge occurs, the device rapidly diverts excess current away from sensitive circuitry, helping limit the voltage seen by protected components.

Key characteristics include:

• Axial-leaded, through-hole mounting format
• Intended for AC and DC line-protection applications
• 10 kA current rating for high-energy surge conditions
• Fast transient response
• Ultra-low clamping behavior using Controlled Foldback technology
• Glass-passivated junction for dependable device performance
• RoHS-compliant construction

Applications

Potential applications for the AK10-FB include:

• AC power-line surge protection
• DC power-input protection
• Industrial control-panel protection
• Power supply input protection
• Motor-drive and inverter protection
• Telecommunications power-line protection
• LED driver surge protection
• Solar-power and energy-storage equipment
• Outdoor electronic equipment
• High-energy transient suppression circuits

Industries

The AK10-FB can be used in a range of industries, including:

• Industrial automation
• Energy and power distribution
• Renewable energy
• Telecommunications
• Automotive and transportation infrastructure
• Building automation
• Consumer appliances
• Security and surveillance
• Medical equipment
• Smart-grid and utility systems

Usage Ideas

1. Protected AC Power Entry
   Add an AK10-FB device to the incoming AC protection stage of an industrial controller to help suppress line surges before they reach the power supply.

2. DC Motor Controller Protection
   Use the diode at the DC input of a motor-drive enclosure to improve resilience against switching transients and long-cable-induced surge events.

3. Outdoor LED Lighting Module
   Incorporate the TVS diode into an outdoor LED driver or lighting-control unit to help protect against surge activity on external power lines.

Conclusion

The Littelfuse AK10-FB axial-leaded TVS diode is a robust solution for protecting AC and DC circuits from high-energy voltage transients. Its 10 kA current capability, fast response, ultra-low clamping characteristics, and glass-passivated construction make it well suited to demanding line-protection designs in industrial, energy, communications, and outdoor electronic systems.