ST0R713B

Overview

The ST0R713B is an inrush current limiter (ICL) from Littelfuse Inc., designed to protect electronic circuits from high initial surge currents. It features a nominal resistance of 700 mOhms at 25°C with a tolerance of ±25%. The device supports a maximum steady-state current of 13 A and has a lead spacing of 0.310 inches (7.87mm). The component measures 1.175 inches (29.85mm) in length and belongs to the ST series.

Feature Summary

• Limits inrush current during power-up to prevent circuit damage
• Provides low resistance in steady-state operation for efficiency
• Robust construction suitable for demanding industrial environments

Applications

• Power supply input protection
• Motor drive circuits
• Industrial control systems

Procurement Notes

Verify part authenticity through authorized Littelfuse distributors. Confirm package type and lead finish match design requirements. Check for obsolescence status as some sources indicate this model may be discontinued. Ensure storage conditions comply with manufacturer guidelines to maintain performance integrity.

Selection Notes

Select based on required steady-state current handling and initial resistance values. Consider thermal management capabilities for continuous operation. Evaluate physical dimensions for PCB layout constraints. Compare against alternative ICL models if specific electrical parameters do not align with system needs.

Part Context

This component is part of Littelfuse's broader circuit protection portfolio, specifically within the inrush current limiter category. It complements other protective devices like fuses and TVS diodes by addressing transient surge events rather than overcurrent or voltage spikes.

Replacement Considerations

Consult Littelfuse official documentation for direct substitutes. Verify equivalent electrical characteristics including resistance, current rating, and physical footprint before substitution.