SMBJ5951B-TP

Single Zener Diodes Overview

The SMBJ5951B-TP is a 1.5W surface mount silicon Zener diode manufactured by Micro Commercial Components (MCC). It provides voltage regulation with a nominal Zener voltage of 120V and a tolerance of ±5%. The device operates within a junction temperature range of -55°C to +150°C and features a glass-passivated junction in the DO-214AA (SMB) package. Electrical characteristics include a maximum dynamic impedance of 380 Ohms at the test current of 3.1mA, a knee current of 0.25mA, and a maximum reverse leakage current of 1µA at 91.2V.

Single Zener Diodes Feature Summary

• Glass-passivated junction for enhanced reliability
• Halogen-free 'Green' device compliant with environmental standards
• Moisture sensitivity level 1 classification
• Epoxy material meets UL 94 V-0 flammability rating

Single Zener Diodes Applications

• Surface mount voltage regulation circuits
• Protection against transient voltage events
• General purpose electronic equipment requiring stable reference voltages

Single Zener Diodes Procurement Notes

Verify authenticity by purchasing directly from Micro Commercial Components or authorized distributors to avoid counterfeit parts. Ensure the ordering suffix matches the required packaging configuration, as the standard designation implies tape and reel packing. Confirm RoHS compliance status and specific lot traceability requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 120V regulation point is required in a compact surface mount footprint. Consider the 1.5W power dissipation capability and the specific dynamic impedance characteristics for noise-sensitive applications. Verify that the operating environment stays within the specified thermal limits and that the package dimensions fit the target PCB layout constraints.

Single Zener Diodes Part Context

This part belongs to the SMBJ5918B through SMBJ5956B series of 1.5W surface mount Zener diodes. The series covers a voltage range from 5.1V to 200V, offering various breakdown voltages in the same DO-214AA package form factor. These devices are designed as equivalents to JEDEC registered 1N59xxB axial leaded diodes but utilize surface mount technology for higher mounting density.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 3SMBJ5951B-TP for higher power handling or the SMBJ5951BHE3-TP if previously used. Cross-reference with other manufacturers' SMBJ5951B variants ensuring identical voltage, tolerance, and package specifications.