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1N5385CE3/TR8
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Product Detailed Parameters
- Description：DIODE ZENER 170V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：170 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：380 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 122 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 1N5385CE3/TR8 is a silicon 5.0-watt Zener diode with a nominal voltage of 170 V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C and features a T-18 axial lead package. The device has a maximum dynamic impedance of 380 Ohms, a reverse current of 0.5 µA at 122 V, and a forward voltage of 1.2 V at 1.0 A.
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 Level 1 requires no dry pack storage
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement equipment
Procurement Notes
Verify the component status as this part number may be obsolete or subject to change. Confirm RoHS compliance via the e3 suffix and ensure the TR8 tape and reel packaging matches assembly requirements. Cross-reference datasheet electrical characteristics against specific design constraints before procurement.
Selection Notes
Select this component for applications requiring precise 170 V regulation with tight ±2% tolerance. Ensure adequate heat sinking is provided to maintain operation within the 5-watt power dissipation limit. Verify that the T-18 package dimensions fit the target PCB layout and that the operating temperature range meets environmental specifications.
Part Context
This device belongs to the JEDEC registered 1N5333B through 1N5388B series of 5.0-watt Zener diodes. The series offers a wide selection of voltages from 3.3 to 200 volts. The C suffix indicates a tighter ±2% tolerance compared to standard B (±5%) or A (±10%) variants.
Replacement Considerations
Equivalent parts include other 170 V, 5 W Zener diodes in T-18 packages. Verify tolerance, thermal resistance, and package compatibility when substituting.
