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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：±2%
- 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 1N5373C/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 68V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, features a maximum dynamic impedance of 44 ohms at a test current of 20 mA, and has a maximum reverse leakage current of 0.5 µA. The device utilizes an axial-lead T-18 package and includes a tape-and-reel option indicated by the TR suffix.
Feature Summary
- Provides precise voltage regulation with tight manufacturing tolerances
- Capable of handling high surge stresses and steady-state power dissipation
- Features flexible axial-lead mounting terminals for through-hole applications
Applications
- Voltage regulation in broad operating current ranges
- High-power circuit protection against voltage spikes
- Reference voltage sources requiring stable performance across wide temperatures
Procurement Notes
Verify the specific manufacturer origin, as the datasheet identifies Microsemi while the model implies Microchip Technology. Confirm RoHS compliance status and ensure the ordering suffix matches the required packaging format. Validate that the component meets all environmental and screening requirements before procurement.
Selection Notes
Select this component when a 68V reference with high precision is required. Ensure adequate heat sinking is provided to maintain operation within the 5-watt power dissipation limit. Verify that the thermal resistance characteristics align with the intended PCB layout and ambient temperature conditions.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes. The 'C' suffix indicates a tighter ±2% voltage tolerance compared to standard B or A suffixes. The 'TR12' designation specifies the tape-and-reel packaging configuration for automated assembly.
Replacement Considerations
Consult official documentation for confirmed substitute part numbers. Cross-reference electrical parameters such as voltage tolerance, power dissipation, and package dimensions to ensure compatibility.
