1PGSMB5942

Single Zener Diodes Overview

The Taiwan Semiconductor 1PGSMB5942 is a single silicon Zener diode designed for surface-mount applications. It features a DO-214AA (SMB) package with a maximum DC power dissipation of 3 W at 75°C. The device provides a nominal Zener voltage of 20 V with a tolerance of 5%. Key electrical characteristics include a test current of 18.7 mA, a Zener impedance of 14 Ohms, and a maximum reverse leakage current of 5 µA at the rated voltage. The component operates within a temperature range of -55°C to +175°C junction temperature.

Single Zener Diodes Feature Summary

• Glass passivated junction for enhanced reliability
• Built-in strain relief in molded plastic case
• Low inductance construction suitable for high-frequency switching
• Guaranteed high-temperature soldering capability

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Clamping applications in signal processing lines

Single Zener Diodes Procurement Notes

Verify the specific suffix designation against the manufacturer's latest datasheet to ensure correct voltage tolerance and packaging configuration. Confirm RoHS compliance status and REACH SVHC declarations prior to integration. Cross-reference the part number with official distributor catalogs to validate authenticity and traceability. Ensure storage conditions adhere to moisture sensitivity level requirements specified in the technical documentation.

Single Zener Diodes Selection Notes

Select this component when a 20 V regulation point is required in a compact SMB footprint. Evaluate thermal derating curves to ensure the 3 W power rating remains sufficient under actual operating ambient temperatures. Compare dynamic impedance specifications against circuit noise requirements. Verify that the 175°C maximum junction temperature aligns with the system's thermal management design constraints.

Single Zener Diodes Part Context

This device belongs to the 1PGSMB series of high-power Zener diodes manufactured by Taiwan Semiconductor. The series utilizes glass passivation technology to improve stability and longevity compared to standard epoxy-passivated alternatives. The SMB package offers a balance between power handling capacity and board space efficiency for industrial and consumer electronics.

Single Zener Diodes Replacement Considerations

Direct substitutes include the onsemi 1SMB5942BT3 and LGE 1SMB5941, provided voltage tolerances and package dimensions are verified. Ensure replacement parts maintain equivalent thermal resistance and peak pulse power ratings.