1N5381B-AP

Overview

The 1N5381B-AP is a 5 W silicon Zener diode manufactured by MCC (Micro Commercial Components). It features a nominal Zener voltage of 130 V with a ±5% tolerance. The device operates in the -55°C to 200°C junction temperature range and utilizes a DO-15 axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 500 nA at 98.8 V, a forward voltage of 1.2 V at 1 A, and a maximum Zener impedance of 190 Ohms.

Feature Summary

• High thermal stability with an extended operating junction temperature range up to 200°C
• Glass passivated junction for enhanced reliability and environmental resistance
• Robust 5 W power dissipation capability in a standard axial leaded package

Applications

• Voltage regulation in high-power DC power supplies
• Overvoltage protection circuits requiring robust thermal performance
• Reference voltage sources in industrial control systems

Procurement Notes

Verify that the specific suffix 'AP' corresponds to the required 200°C junction temperature rating, as standard variants may differ. Confirm package compatibility with DO-15 footprints. Ensure the manufacturer's authorized distributor list is consulted for genuine sourcing to avoid counterfeit components.

Selection Notes

Select this component when a 130 V Zener diode requires operation beyond standard 150°C limits. The DO-15 package offers higher power handling than surface-mount alternatives. Verify that the 190 Ohm impedance meets circuit stability requirements for the specific load conditions.

Part Context

This part belongs to the 1N5381 series of 5 W Zener diodes covering voltages from 3.3 V to 200 V. The 'B' indicates a ±5% tolerance, while 'TP' typically denotes standard packaging. The 'AP' suffix distinguishes this variant, likely indicating specific thermal or material specifications within the MCC lineup.

Replacement Considerations

Direct substitutes include the 1N5381B-TP from the same manufacturer. Cross-manufacturer equivalents such as Motorola's 1N5381B or Microsemi's SMBJ5381A (note: SMBJ is surface mount) share similar electrical ratings but require package adaptation.