1N4755CP/TR12

Overview

The Microchip Technology 1N4755CP/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 or DO-204AL axial lead package. It provides voltage regulation with a nominal Zener voltage of 43V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 70 Ohms at a test current of 6.0 mA. It includes a tape and reel option for automated assembly.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals suitable for standard PCB layouts
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Voltage regulation in power supply circuits
• Reference voltage generation in electronic systems
• Overvoltage protection applications

Procurement Notes

Verify that the component matches the specific JEDEC registered type number and tolerance requirements for your design. Confirm the presence of the TR suffix indicates tape and reel packaging rather than bulk. Ensure the manufacturer source aligns with project specifications, as historical data may reference Microsemi while current production falls under Microchip Technology. Check for RoHS compliance status if required by environmental regulations.

Selection Notes

Select this component when a precise 43V regulation point is required with tighter than standard tolerances. The plastic construction offers lower thermal resistance compared to glass-body options. Consider the axial lead format for through-hole mounting needs. Evaluate the surge current capabilities against potential transient events in the target circuit environment.

Part Context

This part belongs to the popular 1N4728A through 1N4764A series of 1.0 watt Zener diodes. The series covers a voltage selection from 3.3 to 100 volts. The 'P' suffix denotes plastic encapsulation, distinguishing it from glass-body alternatives. The 'C' suffix specifically identifies the 2% voltage tolerance variant within the lineup.

Replacement Considerations

Surface mount equivalents are available as SMAJ4755A and MLL4755A. Other tolerance variants include 1N4755A (5%) and 1N4755D (1%). Glass body versions use the G suffix instead of P.