ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
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：-
Download product information
Overview
The Microchip Technology 1N5373B/TR8 is a silicon 5-watt Zener diode with a nominal voltage of 68 V and ±5% tolerance. It operates in the -65°C to +150°C range within a T-18 axial lead package. Electrical characteristics include a test current of 20 mA, maximum dynamic impedance of 44 ohms, and maximum reverse leakage current of 0.5 µA at 49 V. The device supports a maximum regulator current of 70 mA and withstands surge currents up to 500 mA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal voltage change versus current
- Features flexible axial-lead mounting terminals for through-hole integration
Applications
- Voltage regulation circuits requiring 68 V reference
- High power dissipation applications with adequate heat sinking
- Surge protection environments
Procurement Notes
Verify component authenticity and datasheet alignment before procurement. Confirm that the TR8 suffix corresponds to tape and reel packaging per EIA-296 standards. Ensure the specific lot matches the required RoHS compliance status if applicable. Validate thermal management requirements against the specified junction-to-lead thermal resistance.
Selection Notes
Select this component when a 68 V Zener reference with 5 W power handling is required. The B suffix indicates a standard ±5% voltage tolerance suitable for general regulation. Verify that the T-18 package dimensions fit the target PCB layout. Consider the maximum operating temperature of +150°C for high-temperature environments.
Part Context
This part belongs to the JEDEC registered 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. Manufactured by Microsemi (now Microchip Technology), the series covers voltages from 3.3 V to 200 V. The 1N5373B specifically targets the mid-range voltage segment with a 68 V rating.
Replacement Considerations
Cross-reference with other 1N5373 variants or equivalent 5 W Zener diodes from other manufacturers. Verify pinout compatibility and thermal resistance specifications. Ensure replacement parts meet the same voltage tolerance and surge current ratings.
