DZ23C51-E3-08

Overview

The DZ23C51-E3-08 is a silicon planar Zener diode array from the Vishay DZ23 series, housed in an SOT-23 package. It features a dual common cathode configuration with two elements and three terminals. The nominal Zener voltage is 51 V with a tolerance of ±5 %. Electrical characteristics include a test current (IZT) of 2 mA, a maximum reverse leakage current of 50 µA at 38 V, and a dynamic resistance of 100 Ω at IZT1. The device operates within a temperature range of -55 °C to +150 °C and has a power dissipation rating of 300 mW on an FR-4 board.

Feature Summary

• Dual common cathode configuration for space-efficient circuit design
• Silicon planar technology ensuring stable voltage regulation
• ESD protection capability exceeding 8 kV via human body model

Applications

• Voltage reference circuits requiring dual independent references
• Over-voltage protection stages in signal conditioning paths
• Clamping applications in low-power electronic assemblies

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's document number 86346 and revision 1.2 against official Vishay channels. Confirm that the ordering code matches the specific E3 commercial grade designation without AEC-Q101 qualification suffixes. Ensure packaging details align with the specified 8 mm tape on a 7-inch reel format.

Selection Notes

Select this component when a dual Zener array is required in a compact SOT-23 footprint. The 51 V nominal voltage suits applications needing precise clamping or reference levels near that threshold. Verify that the 300 mW thermal dissipation limit on standard PCBs meets the system's power budget requirements under worst-case ambient conditions.

Part Context

This part belongs to the Vishay DZ23 series of small signal Zener diodes. The series offers a wide Zener voltage range from 2.2 V to 75 V, graded according to the international E24 standard. The base P/N-E3 designation indicates RoHS-compliant commercial grade construction, distinct from the HE3_A variants which carry automotive AEC-Q101 qualification.

Replacement Considerations

Direct substitutes within the same family include other DZ23 series arrays such as DZ23C47-E3-08 or DZ23C56-E3-08, provided the Zener voltage difference is acceptable for the application.