1N5347/TR12

Overview

The Microsemi 1N5347/TR12 is a silicon Zener diode with a nominal voltage of 10V and a ±5% tolerance. It operates in the 1N5333-5388B series, providing 5W power dissipation at 25°C. The device features an axial lead T-18 plastic package and includes a tape and reel option indicated by the TR suffix. Electrical characteristics include a test current of 125mA, maximum dynamic impedance of 2.0 ohms, and a maximum reverse current of 5.0µA.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses and offers minimal voltage change versus current
• Features flexible axial-lead mounting terminals for versatile integration
• Moisture classification Level 1 requires no dry pack handling

Applications

• Voltage regulation circuits requiring 5W power handling
• Power supply protection against overvoltage conditions
• Reference voltage generation in electronic systems

Procurement Notes

Verify the specific suffix configuration to ensure compliance with required tolerance and packaging standards. Confirm RoHS status if environmental regulations apply, as standard versions may contain lead. Check thermal management requirements against the derating curves provided in the datasheet to ensure safe operation within specified junction temperatures.

Selection Notes

Select this component when a 10V Zener reference with ±5% accuracy is needed. Ensure the application can accommodate the 5W power rating or implement adequate heat sinking. Consider the TR suffix only if automated tape-and-reel assembly is utilized. Verify that the operating temperature range aligns with the -65°C to +150°C specification.

Part Context

This part belongs to the JEDEC registered 1N5333 through 1N5388B series of axial-leaded 5.0 watt Zener diodes. The series covers voltages from 3.3V to 200V with various tolerance options. The TR suffix indicates availability in tape and reel packaging per EIA-296 standards, facilitating surface mount or automated through-hole processing.

Replacement Considerations

Equivalent parts within the 1N5333-5388B series share mechanical and electrical profiles. Cross-reference specific voltage tolerances and suffix codes (e.g., B for ±5%) when substituting. Military screening prefixes (MQ, MX, MV) offer enhanced reliability but require verification of compatibility.