SZ2140.T

Single Zener Diodes Overview

The SZ2140.T is a silicon Zener diode from the SZ212V4-SZ2147 series manufactured by SMC Diode Solutions. It features a nominal Zener voltage of 40 V with a ±5% tolerance. The device operates within a junction temperature range of -55°C to +150°C and has a maximum power dissipation of 500 mW. Electrical characteristics at 25°C include a Zener impedance (ZZT) of 3.0 Ω at IZT = 20 mA, a leakage current (IR) of 0.1 µA at VR = 31 V, and a forward voltage (VF) of 0.9 V at IF = 10 mA.

Single Zener Diodes Feature Summary

• Capable of withstanding large surge stresses for robust circuit protection
• Utilizes bottom-side metalization as cathode and top-side metalization as anode for efficient thermal management
• Constructed with glass passivated die technology for enhanced reliability

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Protection against overvoltage transients
• Reference voltage sources in precision applications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix and package configuration when sourcing this component. Confirm that the requested part matches the SZ2140 designation within the specified series. Ensure compliance with RoHS standards if required by your manufacturing process. Contact the manufacturer or authorized distributors for the most current datasheet versions prior to finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component for applications requiring a precise 40 V reference or regulation point. Consider the 500 mW power dissipation limit and the operating temperature range when designing the thermal environment. The low leakage current makes it suitable for high-impedance circuits where minimal current draw is critical during non-conducting states.

Single Zener Diodes Part Context

This component belongs to the SZ212V4-SZ2147 series of silicon Zener diodes produced by SMC Diode Solutions. The series covers a wide voltage range from 2.4 V to 47 V, offering various options for different voltage regulation needs. These devices are designed for surface-mount applications and are characterized by their ability to handle significant surge currents while maintaining stable performance across industrial temperature ranges.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 40 V nominal Zener voltage, 500 mW power rating, and DO-214AB (SMC) package dimensions. Verify that alternative components offer comparable Zener impedance and leakage current specifications to ensure circuit compatibility.