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1N5377B/TR8
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Product Detailed Parameters
- Description：DIODE ZENER 91V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：91 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：75 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 65.5 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
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Overview
The Microsemi Corporation 1N5377B/TR8 is a silicon Zener diode with a nominal voltage of 91V and a tolerance of ±5%. It features a maximum power dissipation of 5.0 watts at 25°C, operating within a temperature range of -65°C to +150°C. The device utilizes an axial-lead T-18 plastic package and includes a TR suffix indicating tape and reel packaging per EIA-296 standards.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal voltage change versus current
- Features flexible axial-lead mounting terminals for versatile integration
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection systems
- Reference voltage generation
Procurement Notes
Verify the specific part number against official Microsemi documentation to confirm the presence of the TR suffix for tape and reel packaging. Ensure compliance with RoHS requirements if applicable, as standard B suffix devices may differ from e3 variants. Confirm lead material specifications and moisture sensitivity levels prior to procurement.
Selection Notes
Select this component for applications requiring a 91V Zener voltage with ±5% tolerance and 5W power handling. Consider thermal resistance and derating curves when designing heat sinking solutions. Verify that the axial-lead form factor meets the mechanical constraints of the target PCB layout.
Part Context
This component belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options identified by suffix letters. The 1N5377B specifically provides a 91V regulation point within this standardized lineup.
Replacement Considerations
Equivalent parts include other manufacturers' 1N5377B variants or compatible 5W Zener diodes with matching 91V voltage and ±5% tolerance. Ensure thermal characteristics and package dimensions align with existing designs.
