DZ4J220K0R

Overview

The DZ4J220K0R is a dual silicon epitaxial planar Zener diode manufactured by Panasonic. It provides a nominal Zener voltage of 22 V with a tolerance of ±5% at a test current of 5 mA. The device features a low Zener operating resistance of 80 Ω and an excellent rising characteristic for Zener current. It operates within a junction temperature range of -40 °C to +150 °C and supports a total power dissipation of 200 mW. The component is housed in an SMini4-F3-B package, measuring 2.1 mm x 2.0 mm x 0.7 mm, and complies with RoHS standards.

Feature Summary

• Dual configuration supporting constant voltage and surge absorption applications
• Low Zener operating resistance for improved performance
• Excellent rising characteristics of Zener current
• Halogen-free and RoHS compliant construction

Applications

• Constant voltage circuits
• Surge absorption circuits

Procurement Notes

Verify the specific ordering suffix K0R against official Panasonic documentation to confirm packaging details and compliance status. Ensure that the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm that the delivered units match the exact part number specifications before integration into production lines.

Selection Notes

Select this component when a dual Zener diode solution is required for compact surface-mount designs. The SMini4-F3-B package offers a small footprint suitable for space-constrained PCB layouts. Evaluate the 200 mW power dissipation limit relative to the expected ambient temperature and thermal management capabilities of the target application environment.

Part Context

This component belongs to the DZ2J series of dual Zener diodes produced by Panasonic Industry. It utilizes a silicon epitaxial planar technology designed for general-purpose electronic equipment. The device is intended for use in office equipment, communications gear, and household appliances where stable voltage regulation and surge protection are necessary.

Replacement Considerations

Consult official Panasonic documentation for verified substitute part numbers. Cross-referencing with other manufacturers requires careful validation of electrical parameters, pinout configurations, and physical dimensions to ensure compatibility without compromising circuit integrity.

FAQ

What is the maximum reverse voltage rating for the DZ4J220K0R?

The datasheet specifies a maximum repetitive peak forward current of 200 mA but does not explicitly list a separate maximum reverse voltage rating distinct from the Zener breakdown characteristics.

How is the Zener voltage temperature coefficient defined for this part?

The temperature coefficient of the Zener voltage (SZ) is specified as 22.2 mV/°C at a test current of 5 mA, measured across a junction temperature range of 25 °C to 150 °C.

What is the ESD protection capability of the DZ4J220K0R?

The device exhibits an electrostatic discharge (ESD) withstand capability of ±8 kV under contact discharge conditions, tested according to IEC61000-4-2 standards.