CMZ5946B TR13

Single Zener Diodes Overview

The CMZ5946B TR13 PBFREE is a surface mount silicon Zener diode from Central Semiconductor, housed in an SMA package. It provides a nominal Zener voltage of 75 V with a ±5% tolerance range spanning 71.25 V to 78.75 V. The device dissipates 1.5 W at 75°C and handles peak transient power up to 200 W (10x1000µs) or 1000 W (8x20µs). Electrical characteristics include a maximum reverse current of 1.0 µA at 56.0 V, a Zener impedance of 140 Ω at the test current of 5.0 mA, and a maximum Zener current of 20 mA.

Single Zener Diodes Feature Summary

• Super miniature SMA case occupies 30% less board space than SMB packages
• C-bend lead construction provides strain relief when mounted on printed circuit boards
• High reliability design suitable for commercial, industrial, computer, and automotive applications

Single Zener Diodes Applications

• Voltage regulation in compact electronic circuits
• Transient voltage suppression (TVS) protection
• Reference voltage generation in industrial equipment

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm plating composition. The absence of a suffix indicates availability in either lead-free or tin/lead variants based on production allocation. Confirm RoHS compliance status directly with the supplier if restricted substances are required for the assembly process.

Single Zener Diodes Selection Notes

Select this component when board space constraints require the SMA footprint instead of larger SMB cases. Ensure the operating junction temperature remains within the -65°C to +150°C range. Verify that the peak forward surge current capability of 10 A meets the transient requirements of the target application circuit.

Single Zener Diodes Part Context

This part belongs to the CMZ5913B through CMZ5956B series of 1.5 Watt surface mount Zener diodes. The series covers a voltage selection from 3.3 V to 200 V, all maintaining a consistent ±5% tolerance and utilizing the same SMA mechanical outline for standardized mounting across different voltage ratings.

Single Zener Diodes Replacement Considerations

Direct replacements must match the SMA package, 1.5 W power rating, and 75 V nominal voltage. Verify that substitute components support the required 140 Ω maximum Zener impedance and operate within the specified thermal limits.