CMZ5917B BK

Single Zener Diodes Overview

The CMZ5917B BK is a surface mount silicon Zener diode from the Central Semiconductor CMZ5913B series. It features an SMA case and provides a nominal Zener voltage of 4.7 V with ±5% tolerance. The device operates at a test current of 79.8 mA, offering a maximum Zener impedance of 5.0 Ω at IZT and 500 Ω at IZK. It supports a continuous power dissipation of 1.5 W at 75°C lead temperature and handles peak pulse power up to 200 W for 10x1000µs pulses. The component withstands a peak forward surge current of 10 A and functions within a junction temperature range of -65 to +150°C.

Single Zener Diodes Feature Summary

• Super miniature SMA case design that occupies significantly less board space compared to SMB packages
• High reliability construction utilizing "C" bend leads to provide mechanical strain relief on printed circuit boards
• Capable of handling transient voltage suppression (TVS) power surges up to 200 Watts

Single Zener Diodes Applications

• Commercial electronic equipment requiring compact voltage regulation
• Industrial control systems needing reliable surface mount components
• Automotive electronics where small physical footprint is critical
• Computer hardware applications demanding high-reliability voltage references

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm plating composition, as standard part numbers may supply either lead-free or tin/lead products based on availability. Confirm packaging format requirements, such as bulk versus tape and reel options, directly with the supplier to ensure compatibility with assembly processes.

Single Zener Diodes Selection Notes

Select this component when a precise 4.7 V reference is required in a constrained SMA package. Ensure the application accounts for the 1.5 W continuous power rating and verify that the operating environment stays within the specified -65 to +150°C junction temperature limits. Consider the 5% voltage tolerance for circuit precision requirements.

Single Zener Diodes Part Context

This device belongs to the CMZ5913B through CMZ5956B series of 1.5 Watt surface mount silicon Zener diodes. The series covers a wide voltage range from 3.3 V to 200 V, all housed in the compact SMA case. These components are engineered for commercial, industrial, computer, and automotive sectors where size reduction and high reliability are primary design constraints.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include CMZ5916B (4.3 V) and CMZ5918B (5.1 V). Verify electrical characteristics match specific circuit needs before substitution.