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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：±2%
- 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 1N5374C/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 75V and ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum dynamic impedance of 45 ohms at a test current of 20mA. The device supports a maximum regulator current of 63mA and withstands surge currents up to 620A. Packaged in an axial T-18 case with tape and reel options, it provides stable voltage regulation across broad operating conditions.
Feature Summary
- Provides precise voltage regulation with tight manufacturing tolerances
- Capable of handling high steady-state power dissipation with adequate heat sinking
- Resistant to electrostatic discharge and high surge stresses
- Moisture classification Level 1 requiring no dry pack storage
Applications
- Voltage regulation in power supply circuits
- Reference voltage sources for electronic systems
- Overvoltage protection components
Procurement Notes
Verify the specific suffix configuration against official datasheets to confirm tolerance and packaging details. Ensure compatibility with thermal management requirements for 5W dissipation. Confirm RoHS compliance status if required by assembly specifications. Cross-reference part numbers with manufacturer documentation to validate availability and screening levels.
Selection Notes
Select this component for applications requiring stable 75V regulation with tight tolerance accuracy. Consider thermal resistance characteristics when designing heat sinking solutions. Evaluate package constraints for axial lead mounting. Verify operating temperature range suitability for the intended environment.
Part Context
This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options. Microsemi provides military equivalent screening levels for these devices upon request.
Replacement Considerations
Equivalent parts include other 5W Zener diodes with 75V nominal voltage and similar tolerance ratings. Verify pinout compatibility and thermal performance before substitution.
FAQ
What is the maximum power dissipation rating?
The maximum power dissipation is 5.0 watts at 25°C ambient temperature.
How is the polarity indicated on the device?
The cathode is indicated by a band on the plastic encapsulated body.
