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Product Detailed Parameters
- Description：DIODE ZENER 9.1V 5W T18
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±2%
- Power - Max：5 W
- Impedance (Max) (Zzt)：2 Ohms
- Current - Reverse Leakage @ Vr：7.5 µA @ 6.6 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 1N5346CE3/TR13 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333B to 1N5388B series. It provides voltage regulation at a nominal Zener voltage of 9.1 volts with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within an ambient temperature range of -65°C to +150°C and features a maximum power dissipation of 5 watts at 25°C. Packaged in a DO-201 axial leaded format, it includes RoHS compliance (e3) and tape-and-reel availability (TR13).
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range.
- Features flexible axial-lead mounting terminals for standard through-hole applications.
- Withstands high surge stresses and exhibits minimal changes in voltage versus current.
- Moisture classification is Level 1 per IPC/JEDEC J-STD-020B, requiring no dry pack.
Applications
- Voltage regulation in power supply circuits.
- Overvoltage protection for sensitive electronic components.
- Reference voltage sources in measurement equipment.
Procurement Notes
Verify the specific ordering suffixes against official documentation to confirm exact electrical tolerances and packaging configurations. Ensure that thermal management requirements are met for the intended application, as power dissipation capabilities depend on adequate heat sinking or PCB copper pad specifications. Confirm RoHS compliance status if required for environmental regulations.
Selection Notes
Select this component when a precise 9.1-volt reference is needed with a ±2% tolerance. Consider the 5-watt power rating and thermal resistance characteristics for high-current applications. Verify compatibility with existing circuit designs regarding reverse leakage current and dynamic impedance specifications under expected operating conditions.
Part Context
This part belongs to the Microsemi Scottsdale Division's 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. These devices are designed for robust voltage regulation in industrial and commercial environments. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options.
Replacement Considerations
Direct substitutes include other 1N5346 variants with matching voltage and tolerance, such as 1N5346A (±10%) or 1N5346D (±1%), provided the tolerance difference is acceptable. Surface mount equivalents like SMBJ5346 or SMBG5346 may be used if footprint adaptation is feasible.
