1N4756APE3/TR12

Overview

The Microchip Technology 1N4756APE3/TR12 is a silicon 1.0-watt Zener diode in a plastic DO-41 axial lead package. It provides voltage regulation at a nominal Zener voltage of 47 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum reverse current of 5 µA at 35.8 V. It includes RoHS compliance indicated by the e3 suffix and tape-and-reel packaging specified by the TR12 suffix.

Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features flexible axial-lead mounting terminals for through-hole applications
• 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 circuits requiring 47 V reference
• Power supply protection and clamping applications
• General purpose electronic equipment utilizing axial-lead components

Procurement Notes

Verify that the ordering suffix matches the required specifications, as the 'P' indicates plastic construction and 'e3' denotes RoHS compliance. Confirm the 'TR12' suffix aligns with the necessary tape and reel packaging format. Ensure the component meets the specific thermal resistance and power dissipation requirements for the intended application environment.

Selection Notes

Select this component when a 47 V Zener voltage with ±5% tolerance is required in an axial package. Consider the 1 W power dissipation capability and the -65°C to +150°C operating temperature range. The plastic encapsulation offers lower thermal resistance compared to glass-body options, making it suitable for applications where heat management is a factor.

Part Context

This part belongs to the 1N4728AP through 1N4764AP series of 1.0-watt Zener diodes manufactured by Microsemi (now Microchip Technology). The series covers a voltage selection from 3.3 to 100 volts. The 1N4756A designation specifically corresponds to the 47 V variant within this extensive lineup of JEDEC registered devices.

Replacement Considerations

Surface mount equivalents are available as SMAJ4756A or MLL4756A. Glass-body versions exist under the G suffix, such as 1N4756AG. Military screening levels can be obtained by adding prefixes like MQ, MX, MV, or MSP to the base part number.