1SMC5343_R1_00001

Single Zener Diodes Overview

The 1SMC5343_R1_00001 is a surface mount silicon Zener diode from the 1SMC5338~1SMC5369 series manufactured by Panjit. It features a nominal Zener voltage of 7.5V with a maximum impedance of 2Ω at IZT and 200Ω at ZZK. The device operates within a junction temperature range of -55°C to +150°C and dissipates up to 5W. Packaged in a JEDEC DO-214AB (SMC) case, it utilizes a green molding compound compliant with IEC 61249 standards.

Single Zener Diodes Feature Summary

• Optimized for surface mounted applications to minimize board space requirements
• Constructed with low inductance design characteristics
• Plastic package meets Underwriters Laboratory Flammability Classification 94V-O

Single Zener Diodes Applications

• General purpose voltage regulation circuits
• Surge protection applications
• Clamping circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and compliance status. The suffix indicates tape and reel packing on a 13-inch plastic reel with RoHS compliance. Confirm that the component lot number is recorded for tracking purposes as Panjit uses lot numbers as the primary tracking base.

Single Zener Diodes Selection Notes

Select this component when a 7.5V reference or regulation point is required in a compact SMC footprint. Ensure the circuit design accommodates the 5W power dissipation rating and derating curves above 75°C ambient temperature. Verify that the 2Ω dynamic impedance meets the precision requirements of the target application.

Single Zener Diodes Part Context

This part belongs to the 1SMC5338 through 1SMC5369 series of surface mount silicon Zener diodes. The series covers a voltage range from 5.1V to 51V, all sharing the same DO-214AB mechanical outline and 5W power dissipation capability. The 1SMC5343 specifically provides the 7.5V nominal voltage option within this standardized family.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1SMC5343 variants from different manufacturers offering identical 7.5V Zener voltage and DO-214AB package dimensions. Cross-referencing electrical parameters such as maximum Zener impedance and reverse leakage current is essential to ensure functional equivalence.