1N5349B-TP

Overview

The MCC 1N5349B-TP is a 5-watt Zener diode housed in the DO-15 axial through-hole package. It provides a nominal Zener voltage of 12 V with a ±5% tolerance. The device operates within a junction temperature range of -55°C to +200°C and features a maximum dynamic impedance of 2.5 Ohms at a test current of 100 mA. Maximum reverse leakage current is specified as 2 µA at 9.1 V, while the forward voltage reaches 1.2 V at 1 A.

Feature Summary

• Provides stable voltage regulation for power supply circuits
• Supports high surge currents for transient protection applications
• Features epoxy encapsulation meeting UL 94 V-0 flammability ratings

Applications

• Voltage reference circuits
• Power supply regulation
• Transient voltage suppression

Procurement Notes

Verify component authenticity by checking markings against official datasheet specifications. Confirm RoHS compliance status and ordering suffixes directly with authorized distributors or the manufacturer. Ensure packaging type matches project requirements before finalizing procurement orders.

Selection Notes

Select this component when a 12 V regulated output is required in a through-hole design. Verify that the 5 W power dissipation rating accommodates the expected thermal load. Check that the DO-15 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the 1N5338B through 1N5388B series manufactured by Micro Commercial Components. The series covers Zener voltages from 5.1 V to 200 V in the DO-15 package. The -TP suffix indicates standard tape and reel packaging options available for automated assembly processes.

Replacement Considerations

Cross-reference with other manufacturers offering 12 V 5 W Zener diodes in the DO-15 package. Verify electrical parameters such as dynamic impedance and leakage current match the original specifications.