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Product Detailed Parameters
- Description：DIODE ZENER 56V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：56 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：35 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 40.3 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 1N5370C/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 56 V and a ±2% tolerance. It operates within a temperature range of -65°C to +150°C, featuring a maximum reverse current of 0.5 µA at 40.3 V and a dynamic impedance of 35 Ω. The device utilizes an axial T-18 package and includes a TR suffix for tape and reel packaging.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for through-hole integration
- Withstands high surge stresses and exhibits minimal voltage changes versus current
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage generation in measurement systems
Procurement Notes
Verify the component manufacturer origin, as the datasheet originates from Microsemi while the model prefix indicates Microchip Technology. Confirm that the specific ordering suffix matches the required tape and reel packaging format. Ensure compliance with moisture classification Level 1 requirements and verify lead material specifications against project constraints.
Selection Notes
Select this component when a precise 56 V regulation point is required with tight ±2% tolerance. Evaluate thermal management needs based on the 5-watt dissipation rating and the specified junction-to-lead thermal resistance. Consider the T-18 axial package dimensions for PCB layout compatibility and ensure adequate heat sinking for steady-state operation.
Part Context
This part belongs to the JEDEC registered 1N5333-5388B series of 5.0-watt Zener diodes. The 'C' suffix identifies the ±2% voltage tolerance variant, distinguishing it from standard B (±5%) or A (±10%) versions. The 'TR8' designation specifies the tape and reel packaging configuration for automated assembly processes.
Replacement Considerations
Compatible equivalents include the 1N5370B (±5% tolerance) and 1N5370D (±1% tolerance). Surface mount alternatives are available in SMBJ5370B or SMBG5370B packages.
