DZ4J033K0R

Overview

The DZ4J033K0R is a dual silicon epitaxial planar Zener diode manufactured by Panasonic Electronic Components. It provides a nominal Zener voltage of 3.3 V with a tolerance of ±5% at a test current of 5 mA. The device features a low Zener operating resistance of 130 Ω and a maximum reverse leakage current of 20 μA at 1 V. Total power dissipation reaches 200 mW, supporting an operating ambient temperature range from -40 °C to +85 °C. Packaged in the SMini4-F3-B (JEITA SC-113BB) surface-mount format measuring 2.0 mm x 2.1 mm x 0.7 mm, it contains two parallel-connected Zener elements.

Feature Summary

• Dual configuration providing two independent Zener diodes within a single compact package for space-constrained designs.
• Low Zener operating resistance ensures stable voltage regulation and excellent rising characteristics under varying current conditions.
• RoHS compliant and halogen-free construction suitable for environmentally regulated manufacturing processes.

Applications

• Constant voltage reference circuits requiring precise dual-channel regulation.
• Surge absorption applications protecting sensitive electronic components from transient voltage spikes.
• General-purpose voltage clamping in office equipment, communications gear, and household appliances.

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer verification. Confirm that the specific batch meets RoHS and halogen-free requirements as specified in the datasheet. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to assembly to maintain reliability during soldering processes.

Selection Notes

Select this component when a dual Zener configuration is required in a minimal footprint. The 200 mW power rating supports moderate current loads, while the 130 Ω impedance offers better regulation than higher-impedance alternatives. Verify that the 3.3 V nominal voltage aligns with circuit design requirements and that the SC-113BB package fits the available board space.

Part Context

This part belongs to the Panasonic DZ4 series of surface mount Zener diodes. It shares the SMini4-F3-B package with other variants in the lineup but differs in internal Zener voltage ratings. The dual structure distinguishes it from single-element counterparts like the DZ2J series, offering integrated solutions for differential or redundant voltage protection schemes.

Replacement Considerations

Direct functional substitutes include the DZ4J033B0R, which shares identical electrical parameters and packaging dimensions. Alternative packages such as the SOD-323FL may require schematic and layout modifications due to pinout and thermal differences.

FAQ

What is the internal connection structure of the DZ4J033K0R?

The device contains two Zener diodes connected in parallel within a single four-terminal package, allowing for independent or combined operation.

How does the Zener voltage change with temperature?

The temperature coefficient is approximately -2.1 mV/°C, meaning the Zener voltage decreases slightly as the junction temperature rises above 25 °C.

What is the maximum repetitive peak forward current rating?

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