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Product Detailed Parameters
- Description：DIODE ZENER 75V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：75 V
- Tolerance：±20%
- Power - Max：5 W
- Impedance (Max) (Zzt)：45 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 54 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
- Grade：-
- Qualification：-
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Overview
The Microsemi Corporation 1N5374/TR8 is a silicon Zener diode with a nominal voltage of 75 V and a maximum power dissipation of 5.0 watts at 25°C. It features a ±5% tolerance, indicated by the 'B' suffix in the base part number. The device operates within a temperature range of -65°C to +150°C and utilizes a T-18 axial lead package. Electrical characteristics include a test current of 20 mA, a maximum dynamic impedance of 45 ohms, and a maximum reverse current of 0.5 µA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal changes in voltage versus current
- Features flexible axial-lead mounting terminals for through-hole integration
- Moisture classification is Level 1 per IPC/JEDEC J-STD-020B requiring no dry pack
Applications
- Voltage regulation circuits
- Surge protection applications
- Reference voltage sources
Procurement Notes
Verify that the ordering suffix matches the required packaging configuration. Confirm the specific tolerance suffix corresponds to the desired voltage accuracy. Ensure the component meets all necessary environmental and screening standards for the intended application before procurement.
Selection Notes
Select this component based on the required 75 V Zener voltage and 5 W power rating. Consider the thermal resistance and derating requirements if operating above ambient temperatures. Verify compatibility with the T-18 axial lead package dimensions for the target PCB layout.
Part Context
This component belongs to the JEDEC registered 1N5333-5388B series of 5.0 watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts. Different tolerance levels are identified by specific suffix letters on the part number, allowing for precise selection based on circuit requirements.
Replacement Considerations
Equivalent parts within the 1N5333-5388B series may be considered if they match the 75 V specification and 5 W power rating. Verify that any substitute maintains the same T-18 package and electrical tolerances.
