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1N5387C/TR12
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Product Detailed Parameters
- Description：DIODE ZENER 190V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：190 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：450 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 137 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 1N5387C/TR12 is a silicon Zener diode with a nominal voltage of 190V and a ±2% tolerance. It features a 5W power dissipation rating, operates within a -65°C to +150°C temperature range, and utilizes an axial-lead T-18 package. The device includes a tape and reel option for automated assembly.
Feature Summary
- Provides precise voltage regulation with tight manufacturing tolerances
- Capable of handling high surge currents when adequately heat sunk
- Features moisture classification Level 1 requiring no dry pack storage
Applications
- Voltage regulation in broad operating current ranges
- Protection against high surge stresses in electronic circuits
- General purpose voltage reference applications
Procurement Notes
Verify the specific suffix configuration matches the required tolerance and packaging format. Confirm RoHS compliance status if lead-free terminals are mandatory for the target application. Ensure thermal management design accounts for the specified junction-to-lead thermal resistance values during operation.
Selection Notes
Select this component for applications requiring stable voltage regulation at 190V with minimal deviation. Consider the axial-lead form factor for through-hole mounting requirements. Evaluate thermal derating curves to ensure adequate heat sinking for continuous 5W operation under expected ambient conditions.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The series offers a wide voltage selection from 3.3V to 200V. The 'C' suffix indicates a tighter ±2% tolerance compared to standard variants.
Replacement Considerations
Equivalent parts include other 190V 5W Zener diodes with ±2% tolerance. Verify pinout compatibility and thermal characteristics before substitution.
FAQ
What does the 'TR12' suffix indicate?
The 'TR' suffix denotes that the device is supplied in a tape and reel format per EIA-296 standards.
How is polarity identified on the device?
Polarity is indicated by a band on the cathode end of the plastic encapsulated body.
