CMKZ5222B TR

Overview

The CMKZ5222B TR is a surface mount triple isolated silicon Zener diode from Central Semiconductor Corp, packaged in an ULTRAmini SOT-363 case. It contains three independent Zener diodes with a nominal voltage of 2.5V and a tolerance of ±5%. Each diode operates at a test current of 20mA, featuring a maximum dynamic impedance of 30Ω and a reverse current of 100μA. The device supports a power dissipation of 200mW and functions within a junction temperature range of -65°C to +150°C.

Feature Summary

• Triple isolated configuration providing three independent Zener diodes in a single compact package
• Designed for automated assembly processes suitable for industrial and commercial applications
• Planar die construction ensuring stable performance across the specified operating temperature range

Applications

• Industrial control systems requiring multiple voltage references
• Commercial electronic equipment needing compact regulation solutions
• Computer hardware utilizing space-constrained surface mount designs
• Entertainment electronics requiring reliable voltage clamping

Procurement Notes

This component has been officially transitioned to End of Life status by Central Semiconductor Corp. Current availability is restricted to existing stock only, with no new production scheduled. Buyers should verify stock levels directly with authorized distributors or the manufacturer's support team before placing orders, as supply is finite and subject to depletion without replacement manufacturing.

Selection Notes

Select this part when a design requires three isolated Zener diodes with a 2.5V nominal rating in a small form factor. Verify that the 200mW total power dissipation and 30Ω impedance meet circuit requirements. Ensure compatibility with the SOT-363 footprint and confirm that the End of Life status aligns with long-term product lifecycle plans.

Part Context

The CMKZ5222B TR belongs to the CMKZ5221B through CMKZ5261B series, which offers various Zener voltages from 2.4V to 47V. All devices in this series share the same triple isolated SOT-363 packaging and general electrical characteristics, differing primarily in breakdown voltage and temperature coefficients. This specific model provides the 2.5V option within that standardized lineup.

Replacement Considerations

No direct replacement part numbers are listed by Central Semiconductor for this discontinued series. The manufacturer indicates that replacements are not available and advises contacting [email protected] for assistance in locating alternate sources or equivalent components from other manufacturers.