DZ23C43-G3-18

Overview

The DZ23C43-G3-18 is a silicon planar Zener diode from the Vishay DZ23-G series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 43 V with a standard tolerance of ±5 %. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 0.05 µA at 38 V and a dynamic resistance of 97 Ω at the test current.

Feature Summary

• Dual-element common cathode configuration within a compact SOT-23 footprint
• Graded Zener voltages aligned with international E24 standards for precise selection
• ESD protection capability exceeding 8 kV via human body model and 800 V via machine model

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in signal conditioning paths
• Biasing networks for transistor amplifiers

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm reel size and tape specifications. Confirm RoHS compliance status and material categorization details directly through official Vishay channels before finalizing procurement orders.

Selection Notes

Select this component when a 43 V reference is required in a space-constrained design. Ensure the operating current remains near the specified 2 mA test point to maintain accuracy. Evaluate thermal dissipation limits if ambient temperatures exceed standard ranges or if power density is high.

Part Context

This part belongs to the DZ23-G series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.2 V to 75 V, all utilizing the same SOT-23 package form factor to simplify inventory management across various voltage requirements.

Replacement Considerations

Direct substitutes within the same series include DZ23C43-E3-18. Verify pinout compatibility and electrical tolerances when considering cross-manufacturer alternatives.