1N5357B-AP

Overview

The MCC 1N5357B-AP is a single Zener diode with a nominal voltage of 20 V and a maximum power dissipation of 5 W. It features a ±5% tolerance and operates within a temperature range of -55°C to +150°C. The device utilizes a DO-15 axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 500 nA at 15.2 V, a forward voltage of 1.2 V at 1 A, and a maximum impedance of 3 Ohms.

Feature Summary

• Provides stable voltage regulation with a 20 V nominal rating and tight manufacturing tolerances.
• Engineered for high-power applications with a 5 W DC power dissipation capability.
• Constructed with a molded plastic case rated UL 94V-0 for flammability safety.

Applications

• Voltage reference circuits requiring precise 20 V levels
• Power supply protection against overvoltage conditions
• Clamping applications in industrial electronic systems

Procurement Notes

Verify the specific suffix designation when ordering, as the AP variant may differ in packaging or testing criteria compared to standard TP versions. Confirm RoHS compliance status and ensure the supplier provides official datasheets matching the exact part number to avoid discrepancies in mechanical dimensions or electrical parameters.

Selection Notes

Select this component for designs requiring robust through-hole mounting and high thermal resilience up to 150°C. Ensure the circuit can handle the specified 5 W power dissipation and that the DO-15 package fits the available board space. Compare leakage and impedance specs against similar 20 V Zener diodes if tighter performance limits are required.

Part Context

This component belongs to the 1N5357 series of 5 W Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 5.1 V to 51 V, offering standardized DO-15 packaging for reliable integration into various electronic assemblies. The 1N5357B-AP specifically targets the 20 V segment of this lineup.

Replacement Considerations

Direct substitutes include other manufacturers' 1N5357B equivalents or generic 5 W 20 V Zener diodes in DO-15 packages. Verify that any replacement matches the 5 W power rating, ±5% tolerance, and operating temperature range to maintain circuit integrity.