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1N5387AE3/TR8
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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：±10%
- 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 Corporation 1N5387AE3/TR8 is a silicon Zener diode with a nominal voltage of 190 V and a tolerance of ±10%. It features a maximum power dissipation of 5.0 W at 25°C, a maximum reverse current of 500 µA tested at 137 V, and a maximum dynamic impedance of 450 Ω. The device operates within a temperature range of -65°C to +150°C and utilizes an axial-lead T-18 package.
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
Applications
- Voltage regulation circuits requiring 190 V reference
- Power supply protection against overvoltage conditions
- General-purpose clamping applications in industrial electronics
Procurement Notes
Verify the component matches the exact JEDEC registered part number 1N5387AE3/TR8. Confirm that the suffix 'e3' indicates RoHS compliance and 'TR' specifies tape and reel packaging. Ensure the manufacturer is identified as Microsemi Corporation or its authorized successor entity to guarantee authenticity and correct electrical specifications.
Selection Notes
Select this component when a 190 V Zener voltage with ±10% tolerance is required. The 5-watt power rating supports high DC currents provided adequate heat sinking is implemented. Verify that the T-18 axial lead package fits the mechanical constraints of the target printed circuit board layout.
Part Context
This device belongs to the 1N5333B through 1N5388B series of 5.0 watt Zener diodes. The series covers a voltage selection from 3.3 to 200 volts. The specific 'A' suffix identifies the ±10% tolerance variant within this family of plastic encapsulated, axial-leaded components.
Replacement Considerations
Cross-reference with other manufacturers offering equivalent 190 V, 5 W Zener diodes in the T-18 package. Verify that any substitute meets the same thermal resistance and surge current specifications.
