1N5347/TR8

Overview

The Microsemi Corporation 1N5347/TR8 is a silicon 5-watt Zener diode in the JEDEC registered 1N5333-5388B series. It features a nominal Zener voltage of 10 V with a ±5% tolerance, indicated by the B suffix. The device utilizes an axial-lead T-18 plastic encapsulated package and includes a TR suffix denoting tape and reel packaging per EIA-296 standards. Electrical characteristics include a maximum dynamic impedance of 2.0 Ohms at a test current of 125 mA and a maximum reverse leakage current of 5.0 µA at 7.2 V. It operates within a temperature range of -65°C to +150°C.

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 change versus current
• Constructed with a void-free transfer molded thermosetting epoxy body

Applications

• Voltage regulation circuits requiring 5-watt power dissipation
• Power supply protection against overvoltage conditions
• Reference voltage generation in electronic systems

Procurement Notes

Verify the specific ordering suffixes to confirm package type and compliance status. The TR suffix indicates tape and reel packaging. Confirm RoHS compliance requirements as standard versions may differ from e3 variants. Check manufacturer documentation for lead time and availability updates, noting that this component family has experienced end-of-life notifications.

Selection Notes

Select this component when a 10 V Zener reference with ±5% tolerance is required. Ensure the application supports the 5-watt power rating and provides adequate heat sinking for steady-state operation. Verify that the axial T-18 package fits the PCB layout constraints. Consider thermal resistance derating curves if ambient temperatures exceed standard limits.

Part Context

This part belongs to the Microsemi 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V. Different suffix letters denote specific voltage tolerances, such as B for ±5%. The series is JEDEC registered and available in various screening levels and packaging options including tape and reel.

Replacement Considerations

Equivalent parts within the same series include 1N5347B or 1N5347BE3. Military equivalents are available with MQ, MX, or MV prefixes. Surface mount equivalents exist in SMBJ or SMBG packages.