1N5367B

Overview

The onsemi 1N5367B is a silicon unidirectional voltage regulator diode belonging to the 1N53 Series. It features a nominal Zener voltage of 43 V with a tolerance of ±5%. The device operates in an axial lead, transfer-molded plastic package (DO-15/Case 017AA) and supports a maximum steady-state power dissipation of 5 W at a lead temperature of 25°C. Electrical characteristics include a test current (IZT) of 30 mA, a maximum Zener impedance (ZZT) of 20 Ω, and a reverse leakage current (IR) of 0.5 µA at breakdown voltage. The component withstands a surge rating of up to 180 W for 8.3 ms pulses.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for superior operating characteristics and tight parameter limits.
• Provides high peak reverse power dissipation capability with a surge rating of up to 180 W at 8.3 ms pulse width.
• Features robust environmental protection through void-free, transfer-molded thermosetting plastic packaging.
• Guarantees maximum limits on multiple electrical parameters including Zener voltage, impedance, and leakage current.

Applications

• Voltage regulation in electronic circuits requiring stable reference voltages.
• Protection against transient overvoltage events and electrostatic discharge (ESD).
• Surge suppression applications handling non-repetitive square-wave currents.

Procurement Notes

Verify the specific ordering suffix when purchasing. The 'G' suffix designates Pb-Free packages available from onsemi. Confirm that the required quantity matches standard shipping units, such as 1000 units per box or 4000 units per tape and reel. Ensure compliance with RoHS directives if lead-free composition is mandatory for the assembly process.

Selection Notes

Select this component for applications requiring a 43 V regulation point within a 5 W power envelope. The ±5% tolerance suits general-purpose regulation where tighter precision is not critical. Consider the thermal resistance and derating requirements above 25°C ambient temperature to ensure the junction temperature remains within safe operating limits during continuous DC operation.

Part Context

This device is part of the 1N53 Series, a complete line of 5 Watt Zener diodes ranging from 3.3 V to 200 V. The series is characterized by silicon-oxide passivated junctions and axial lead construction. The 1N5367B specifically addresses the higher voltage segment of this range, offering reliable performance in standard industrial and commercial environments.

Replacement Considerations

Cross-reference with other manufacturers' 1N5367B equivalents. Verify that substitute parts match the 43 V nominal voltage, 5 W power rating, DO-15 package dimensions, and ±5% tolerance. Ensure the replacement maintains comparable surge current ratings and thermal resistance characteristics.