DZ4J180K0R

Overview

The DZ4J180K0R is a dual silicon epitaxial planar Zener diode manufactured by Panasonic Electronic Components. It provides a nominal Zener voltage of 18 V with a tolerance range of 17.10 V to 18.90 V at a test current of 5 mA. The device features a maximum total power dissipation of 200 mW and operates within an ambient temperature range of -40 °C to +85 °C. Packaged in the SMini4-F3-B (JEITA SC-113BB) surface-mount format, it measures 2.1 mm x 2.0 mm x 0.7 mm. Key electrical parameters include a maximum reverse leakage current of 0.05 µA at 13 V, a typical Zener impedance of 60 Ω, and a temperature coefficient of 17.2 mV/°C.

Feature Summary

• Dual configuration integrating two parallel Zener diodes within a compact footprint for space-constrained designs.
• Low Zener operating resistance and excellent rising characteristics of Zener current to ensure stable voltage regulation.
• Halogen-free and RoHS compliant construction suitable for environmentally regulated manufacturing processes.

Applications

• Constant voltage reference circuits requiring dual independent channels.
• Surge absorption applications in office equipment and communication devices.
• General-purpose voltage regulation in household appliances and measuring instruments.

Procurement Notes

Verify component authenticity through authorized Panasonic distributors or certified suppliers. Confirm that the marking symbol 'YJ' matches the datasheet specifications. Ensure compliance with EU RoHS directives and UL-94 V-0 flammability ratings before integration into final assemblies.

Selection Notes

Select this component when a dual-channel Zener solution is required in a minimal surface-mount package. Evaluate thermal derating curves if operation exceeds the standard 85 °C limit. Consider the 60 Ω impedance value for high-frequency noise sensitivity requirements.

Part Context

This part belongs to the DZ4J series of surface-mount Zener diodes from Panasonic. It utilizes the SMini4-F3-B package, which offers a smaller footprint compared to traditional axial leads while maintaining robust power handling capabilities for general electronic applications.

Replacement Considerations

No direct public substitute part numbers are documented in the provided source material. Verify pinout compatibility and electrical tolerances carefully if considering alternative manufacturers for the SMini4-F3-B package.

FAQ

What is the internal connection structure of the DZ4J180K0R?

The device contains two independent Zener diodes connected in parallel internally, designated as Anode-1/Cathode-1 and Anode-2/Cathode-2.

How does the junction temperature affect the Zener voltage?

The Zener voltage has a positive temperature coefficient of approximately 17.2 mV/°C at a test current of 5 mA, meaning the voltage increases as the junction temperature rises.

What is the maximum repetitive peak forward current rating?

The absolute maximum rating for repetitive peak forward current (IFRM) is 200 mA.