1N5381BE3/TR12

Overview

The Microsemi Corporation 1N5381BE3/TR12 is a silicon Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 130 V with a ±5% tolerance, indicated by the 'B' suffix. The device features a maximum power dissipation of 5.0 watts and operates within a temperature range of -65°C to +150°C. Packaged in a T-18 axial lead format, it includes RoHS compliance via the 'e3' suffix and tape-and-reel availability via the 'TR' suffix.

Feature Summary

• Provides stable voltage regulation across broad operating current and temperature ranges
• Withstands high surge stresses and offers flexible axial-lead mounting terminals
• Features minimal changes of voltage versus current as specified by voltage regulation
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B with no dry pack required

Applications

• Voltage regulation circuits requiring 130 V reference
• High DC current applications with adequate heat sinking
• Surge stress protection environments

Procurement Notes

Verify that the part number matches the specific B suffix for ±5% tolerance and e3 suffix for RoHS compliance. Confirm the TR suffix indicates tape-and-reel packaging rather than bulk or cut tape. Ensure the component is sourced from authorized channels to guarantee authenticity and adherence to the manufacturer's specifications.

Selection Notes

Select this component when a precise 130 V Zener voltage with tight ±5% tolerance is required. Consider the 5-watt power rating and thermal resistance characteristics for proper heat sinking design. Verify compatibility with the T-18 axial package dimensions and ensure the operating environment falls within the specified -65°C to +150°C temperature range.

Part Context

This device belongs to the Microsemi 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide selection of voltages from 3.3 V to 200 V. The 1N5381 variant specifically targets the 130 V regulation point within this extensive lineup, offering standard commercial screening levels suitable for general-purpose electronic applications.

Replacement Considerations

Surface mount equivalents are available as SMBJ5381B or SMBG5381B. Other manufacturers may offer direct replacements within the 1N5381 family, but verify pinout compatibility and electrical parameters such as dynamic impedance and reverse leakage current before substitution.