1N5348CE3/TR13

Overview

The Microchip Technology 1N5348CE3/TR13 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It features an axial-leaded plastic encapsulated case with a nominal Zener voltage of 11V and a ±5% tolerance (B suffix). The device operates within a temperature range of -65°C to +150°C and includes RoHS compliance (e3 suffix) and tape-and-reel packaging (TR13 suffix). Key electrical characteristics include a test current of 125mA, maximum dynamic impedance of 2.5 ohms, and a maximum regulator current of 8.0A when adequately heat sunk.

Feature Summary

• Provides voltage regulation across a broad operating current and temperature range
• Withstands high surge stresses with minimal changes in voltage versus current
• Features flexible axial-lead mounting terminals for standard PCB integration
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

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

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'C' indicates ±2% tolerance, 'E3' denotes RoHS compliance, and 'TR13' specifies tape-and-reel packaging. Confirm the manufacturer source is Microsemi/Microchip Scottsdale Division. Ensure the component meets the specific thermal resistance requirements for your application, as power dissipation derates based on lead or ambient temperature conditions.

Selection Notes

Select this component when a precise 11V reference with tight ±2% tolerance is required in a 5-watt axial package. The TR13 suffix indicates bulk tape-and-reel availability suitable for automated assembly processes. Consider the thermal management capabilities, as steady-state power dissipation depends heavily on adequate heat sinking or FR4 PC board copper pad configurations to maintain reliability under high current loads.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers a wide selection of voltages from 3.3V to 200V with various tolerance options. The 1N5348 variant specifically provides an 11V breakdown voltage, fitting into the mid-range of the series for applications needing moderate voltage regulation with high current handling capabilities.

Replacement Considerations

Surface mount equivalents are available as SMBJ5348 or SMBG5348. Military screening levels can be obtained by adding MQ, MX, or MV prefixes to the base part number for JAN, JANTX, or JANTXV specifications respectively.