DZ23C22-E3-18

Overview

The DZ23C22-E3-18 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 22 V with a standard tolerance of ±5 %. The device operates within a test current range of 2 to 5 mA and features a maximum reverse leakage current of 0.05 µA at 17 V. Dynamic resistance is specified at 55 Ω, with a temperature coefficient between 8 and 10 x 10⁻⁴/°C. Power dissipation reaches 500 mW on leads and 300 mW on FR-4 boards, supporting an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Silicon planar construction for reliable voltage regulation
• Graded Zener voltages according to international E24 standards
• ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• RoHS-compliant commercial grade material categorization

Applications

• Voltage reference circuits requiring stable 22 V levels
• Overvoltage protection in low-power electronic systems
• Clamping applications in signal conditioning paths

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 suffix -E3-18 corresponds to the specific 10,000-unit reel packaging format. Ensure compliance requirements match the RoHS-compliant commercial grade designation before finalizing acquisition.

Selection Notes

Select this component when a 22 V Zener voltage with ±5 % tolerance is required in a compact SOT-23 footprint. Consider the 55 Ω dynamic resistance and 0.05 µA leakage current for precision applications. Verify thermal management needs against the 300 mW dissipation limit on FR-4 substrates. Ensure the operating environment stays within the -55 °C to +150 °C range for optimal performance.

Part Context

This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series covers a wide voltage range from 2.2 V to 75 V, all utilizing the same SOT-23 package structure. The DZ23C22 variant specifically targets the 22 V segment of the E24 standard grading system.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other DZ23 series variants or equivalent SOT-23 Zener diodes from different manufacturers based on matching electrical parameters and package dimensions.

FAQ

What is the maximum reverse leakage current for the DZ23C22-E3-18?

The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 17 V.

How does the power dissipation rating change based on mounting conditions?

Power dissipation is rated at 500 mW when calculated based on thermal resistance to the lead (RthJL = 250 K/W), but reduces to 300 mW when mounted on an FR-4 board with the recommended soldering footprint.

Is the DZ23C22-E3-18 AEC-Q101 qualified?

No, the base P/N-E3 designation indicates a RoHS-compliant commercial grade device. AEC-Q101 qualification is available only for the HE3_A variant within the DZ23 series.