1N5370CE3/TR13

Overview

The Microchip Technology 1N5370CE3/TR13 is a silicon 5-watt Zener diode in the JEDEC registered 1N5333B-1N5388B series. It provides voltage regulation with a nominal Zener voltage of 51V and a ±2% tolerance, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and features an axial lead DO-41 package. Electrical characteristics include a maximum dynamic impedance of 27 ohms at a test current of 25mA, a maximum reverse leakage current of 0.5µA, and a maximum regulator current of 38.8mA. The component is RoHS compliant (e3) and supplied in tape and reel packaging (TR).

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range.
• Features flexible axial-lead mounting terminals for 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 circuits requiring 5-watt power dissipation.
• Power supply reference voltage generation.
• Overvoltage protection for sensitive electronic components.

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'C' indicates ±2% tolerance, 'e3' confirms RoHS compliance, and 'TR' denotes tape and reel packaging. Confirm the manufacturer origin, as this part number belongs to the Microsemi Scottsdale Division series now under Microchip Technology. Ensure the procurement documentation aligns with the specific electrical tolerances and thermal ratings defined in the official datasheet.

Selection Notes

Select this component when a precise 51V reference with tight ±2% tolerance is required. The 5-watt power rating allows operation at high DC currents provided adequate heat sinking is utilized. Consider the axial lead format for standard PCB mounting. Verify thermal resistance requirements against the application's ambient temperature and derating curves to ensure safe operation within the specified junction temperature limits.

Part Context

This part belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes. The series covers a wide voltage selection from 3.3V to 200V. The 'e3' suffix designates RoHS-compliant devices with annealed matte-tin plating on the terminals. The 'TR' suffix indicates the component is supplied in standard EIA-296 tape and reel packaging for automated assembly processes.

Replacement Considerations

Surface mount equivalents are available in SMBJ5333-SMBJ5388B or SMBG5333-SMBG5388B packages. Military screening options exist with MQ, MX, or MV prefixes for JAN, JANTX, and JANTXV levels respectively. Direct replacements must match the 51V nominal voltage, ±2% tolerance, and 5-watt power dissipation rating.