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Product Detailed Parameters
- Description：DIODE ZENER 68V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：68 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：44 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 49 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 1N5373BE3/TR12 is a silicon 5.0-watt Zener diode from the JEDEC registered 1N5333B through 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 68 V with a standard tolerance of ±5%. The device features an axial-lead T-18 package and operates within a temperature range of -65°C to +150°C. Electrical characteristics include a maximum reverse current of 0.5 µA, a dynamic impedance of 44 Ω, and a test current of 20 mA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and offers minimal changes in voltage versus current
- Features flexible axial-lead mounting terminals for secure installation
- Constructed with a void-free transfer molded thermosetting epoxy body
Applications
- Voltage regulation circuits requiring robust thermal performance
- Power supply protection against high surge stresses
- General-purpose voltage reference applications
Procurement Notes
Verify that the component matches the specific suffix requirements for your application. Confirm RoHS compliance status and ensure the ordering suffix aligns with the required tape and reel packaging specifications. Check for any military screening prefixes if higher reliability standards are necessary for the intended deployment environment.
Selection Notes
Select this component when a 68 V Zener voltage with ±5% tolerance is required. Ensure the design accommodates the 5.0-watt power dissipation capability and utilizes adequate heat sinking. Verify that the axial lead form factor fits the PCB layout constraints and that the operating temperature range meets the environmental demands.
Part Context
This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series covers a wide voltage selection from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliance, while 'TR12' specifies the tape and reel packaging format.
Replacement Considerations
Surface mount equivalents such as SMBJ5373BE3 or SMBG5373BE3 are available within the same product family. These alternatives provide similar electrical characteristics but utilize different mounting technologies.
