1N4736APE3/TR12

Overview

The Microchip Technology 1N4736APE3/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP to 1N4764AP series, housed in a plastic DO-41 axial lead package. It provides voltage regulation with a nominal Zener voltage of 6.8 V and a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 3.5 Ohms at a test current of 37 mA. RoHS compliant devices carry an 'e3' suffix, while tape and reel packaging is indicated by the 'TR' 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 6.8 V reference
• General purpose electronic equipment power supplies
• Temperature compensated circuits within specified ranges

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'e3' confirms RoHS compliance, and 'TR' denotes tape and reel packaging. Confirm the manufacturer source, as Microsemi products are now managed under Microchip Technology. Ensure the component meets the specific JEDEC registration requirements for the 1N4736A type number before procurement.

Selection Notes

Select this component when a 6.8 V Zener voltage with ±5% tolerance is required in a 1-watt axial package. Consider the plastic body option for lower thermal resistance compared to glass-body alternatives. Verify that the application environment does not exceed the maximum junction-to-ambient thermal resistance limits or require military screening prefixes like MQ, MX, MV, or MSP.

Part Context

This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0-watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers an extensive voltage selection from 3.3 to 100 volts. The 1N4736A variant specifically targets the 6.8 V regulation segment within this widely used JEDEC registered lineup.

Replacement Considerations

Surface mount equivalents such as MLL4736A are available for high-density designs. For higher reliability needs, screened versions with prefixes like MQ, MX, MV, or MSP can be requested directly from the factory.