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Product Detailed Parameters
- Description：DIODE ZENER 39V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：39 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：14 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 28.1 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 Microchip Technology 1N5366BE3/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 39 V with a ±5% tolerance, tested at 30 mA. The device features a maximum reverse leakage current of 500 nA and a dynamic impedance of 14 Ohms. It operates within a temperature range of -65°C to +150°C and utilizes a T-18 axial lead 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 installation
Applications
- Voltage regulation circuits requiring 5-watt power dissipation
- High surge stress environments
- Applications utilizing flexible axial-lead mounting
Procurement Notes
Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status via the e3 suffix designation. Ensure the TR12 tape and reel packaging matches project requirements. Validate that the specific B suffix corresponds to the required ±5% voltage tolerance before integration into designs.
Selection Notes
Select this component when a 39 V reference with ±5% tolerance is required. The 5-watt power rating supports high DC currents if adequate heat sinking is provided. Verify thermal resistance calculations based on the chosen mounting method, as steady-state power dissipation varies significantly between free-air and FR4 PCB configurations.
Part Context
This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a wide voltage selection from 3.3V to 200V. The 'e3' suffix indicates RoHS compliance, while 'TR12' denotes the standard EIA-296 tape and reel packaging option.
Replacement Considerations
Consult the official datasheet for equivalent military screening levels using MQ, MX, or MV prefixes. Surface mount equivalents are available in the SMBJ5333 to SMBJ5388B or SMBG5333B to SMBG5388B series.
