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Product Detailed Parameters
- Description：DIODE ZENER 18V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 13 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
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Overview
The Microchip Technology 1N5355BE3/TR13 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 18V with a ±5% tolerance, indicated by the 'B' suffix. The device operates within a temperature range of -65°C to +150°C and features a T-18 axial-lead package. The 'e3' suffix denotes RoHS compliance, while the 'TR13' suffix indicates tape and reel packaging.
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 applications
- Moisture classification Level 1 requiring no dry pack storage
Applications
- Voltage regulation in power supply circuits
- Overvoltage protection for sensitive electronic components
- Reference voltage sources in measurement equipment
Procurement Notes
Verify the complete part number against official Microchip documentation to confirm specific suffix requirements. Ensure the procurement channel sources directly from authorized distributors or the manufacturer to guarantee authenticity. Confirm that the RoHS compliant 'e3' designation matches project specifications. Check for any discontinuance notifications or lifecycle status updates prior to finalizing orders.
Selection Notes
Select this component when a 5-watt power dissipation rating and an 18V regulated output are required. The ±5% tolerance suits general-purpose regulation tasks. Consider the thermal resistance characteristics and derating curves if operating near maximum limits. Verify that the T-18 package dimensions fit the available PCB space and mounting constraints.
Part Context
This device belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series offers a wide selection of voltages from 3.3V to 200V. These plastic encapsulated diodes are designed for high reliability and are suitable for various industrial and commercial applications requiring robust voltage regulation capabilities.
Replacement Considerations
Consult official Microchip documentation for verified substitute part numbers. Surface mount equivalents such as SMBJ5355B may be considered if layout changes are permissible.
