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Product Detailed Parameters
- Description：DIODE ZENER 12V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：12 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2.5 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 8.6 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 1N5349BE3/TR13 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B-1N5388B series. It provides voltage regulation at a nominal Zener voltage of 12 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 dynamic impedance of 2.5 ohms, a reverse current of 2 µA at 8.6 V, and a maximum surge current capability of 9.1 A.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and exhibits minimal changes in voltage versus current
- Features flexible axial-lead mounting terminals for versatile integration
- Moisture classification Level 1 requiring no dry pack storage
Applications
- Voltage regulation circuits
- Surge protection applications
- Reference voltage sources
Procurement Notes
Verify the component origin carefully as this part number originates from the Microsemi Scottsdale Division, which has been acquired by Microchip Technology. Confirm that the specific ordering suffix matches the required tape and reel packaging configuration. Ensure the RoHS compliant e3 designation aligns with environmental compliance requirements for your assembly process.
Selection Notes
Select this component when a 5-watt power dissipation rating is required for robust thermal performance. The 12 V nominal voltage and ±5% tolerance suit general-purpose regulation needs. Consider the T-18 axial lead package for through-hole mounting or verify if the TR suffix meets automated placement requirements compared to bulk packaging options.
Part Context
This device belongs to the 1N5333B through 1N5388B series of silicon Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3 V to 200 V. The 'e3' suffix indicates RoHS compliance, while the 'TR' suffix denotes tape and reel packaging. These components are designed for high reliability in demanding environments.
Replacement Considerations
Surface mount equivalents such as SMBJ5349B or SMBG5349B are available from the same manufacturer family. Verify pinout compatibility and thermal derating curves when transitioning between axial lead and surface mount packages.
