SL3210015

Overview

The SL3210015 is a radial leaded negative temperature coefficient (NTC) thermistor designed as an inrush current limiter. It features a nominal resistance of 10 ohms with a tolerance of ±20% and supports a maximum steady-state current of 15 A at 65°C ambient temperature. The component has a body diameter of 32 mm, a pitch spacing of 3.82 mm, and a dissipation factor of 45.4 mW/°C. It utilizes a bulk packaging format for PCB mounting applications.

Feature Summary

• Provides simple one-component circuit protection alternative to wire-wound resistors combined with timers or relays
• Radial leaded construction facilitates through-hole PCB mounting
• Negative temperature coefficient characteristic enables automatic resistance reduction during operation

Applications

• Power supply input stages
• Motor drive circuits
• Transformer primary side protection

Procurement Notes

Verify the specific ordering suffix against official Vishay Ametherm documentation to ensure correct resistance and current ratings. Confirm that the radial lead configuration matches the target PCB footprint requirements. Check datasheet revisions for any updates to thermal characteristics or mechanical dimensions prior to finalizing procurement orders.

Selection Notes

Select this component based on the required 10-ohm initial resistance and 15-ampere steady-state current capacity. Ensure the 32-millimeter body size fits within the available board space constraints. Evaluate the dissipation factor of 45.4 mW/°C against the expected thermal environment to maintain safe operating temperatures under continuous load conditions.

Part Context

This part belongs to the SL series of inrush current limiters manufactured by Vishay Ametherm. These components are specifically engineered for circuit protection roles where limiting initial charging currents is critical. The series offers various resistance and current ratings to suit different power levels and system requirements.

Replacement Considerations

Cross-reference with MS3210015 for potential equivalent specifications. Verify that substitute parts match the 10-ohm resistance, 15-ampere current rating, and 32-millimeter diameter dimensions to ensure mechanical and electrical compatibility.