AS320R536100

Overview

The AS320R536100 is a radial leaded NTC thermistor inrush current limiter from the Vishay Ametherm AS32 series. It features a nominal resistance of 0.5 Ohms with a tolerance of ±25% at 25°C. The component supports steady-state currents up to 36 A and withstands rated voltages of 120 VAC, 240 VAC, 480 VAC, and 680 VAC. Physical dimensions include a diameter of 30 mm, width of 7.8 mm, and lead spacing of 17.1 mm. It utilizes PCB mount installation and carries UL approval for safety compliance.

Feature Summary

• Provides inrush current protection for input energies ranging from 250 to 1000 joules
• Supports steady-state currents between 10A and 50A within the AS32 series range
• Features UL approved construction for enhanced safety certification

Applications

• Power supply input stages requiring surge suppression
• Industrial equipment power inputs
• Consumer electronics AC/DC conversion circuits
• Automotive electronic control units

Procurement Notes

Verify that the required steady-state current does not exceed 36 A and that the circuit voltage aligns with the specified ratings of 120 VAC, 240 VAC, 480 VAC, or 680 VAC. Confirm the physical footprint matches the 17.1 mm lead spacing and 30 mm diameter. Ensure the application environment remains within the thermal limits defined by the datasheet to maintain performance integrity.

Selection Notes

Select this component when an inrush current limiter with a 0.5 Ohm initial resistance is required for applications handling up to 36 A. The AS32 series is suitable for designs needing protection against 250 to 1000 joules of input energy. Consider the radial lead configuration and PCB mounting style for integration into standard power boards.

Part Context

This part belongs to the Vishay Ametherm AS32 series of NTC thermistors designed specifically for inrush current limiting. The series offers various resistance values and current ratings to accommodate different power requirements. These components are widely used in industries requiring robust surge protection for AC and DC power inputs.

Replacement Considerations

Cross-reference with other AS32 series parts for similar resistance and current ratings. Verify that any substitute maintains the same radial lead pitch and physical dimensions for board compatibility. Ensure the replacement component meets the same UL safety standards if certification is required.