1N4736CPE3/TR8

Overview

The Microchip Technology 1N4736CPE3/TR8 is a silicon 1.0-watt Zener diode housed in a plastic DO-41 axial lead package. It provides voltage regulation with a nominal Zener voltage of 6.8 V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within a temperature range of -65°C to +150°C, features a maximum reverse current of 10 µA at 4 V, and exhibits a dynamic impedance of 3.5 Ω at a test current of 37 mA. It is supplied in tape and reel packaging.

Feature Summary

• Provides precise voltage regulation with a standard ±2% tolerance for stable reference applications
• Features flexible axial-lead mounting terminals suitable for through-hole PCB integration
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• RoHS compliant construction with annealed matte-Tin plating solderable per MIL-STD-750

Applications

• Voltage regulation over broad operating current and temperature ranges
• Reference voltage sources in electronic circuits
• Surge protection and clamping applications

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic encapsulation, 'e3' confirms RoHS compliance, and 'TR8' specifies the tape and reel packaging format. Confirm the 'C' suffix denotes the necessary ±2% voltage tolerance. Ensure the component meets the specific thermal and electrical requirements for the intended application environment before finalizing procurement.

Selection Notes

Select this component when a 6.8 V regulated output with high precision is required in an axial lead form factor. The plastic construction offers lower thermal resistance compared to glass-body options. Consider the ±2% tolerance if tighter voltage accuracy than standard 5% or 10% variants is needed. Verify that the 1.0 W power dissipation rating aligns with the circuit's thermal management capabilities.

Part Context

This part belongs to the 1N4728AP thru 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 'C' suffix specifically identifies the 2% tolerance variant within this family, distinguishing it from standard 'A' (5%) or unmarked (10%) versions.

Replacement Considerations

Equivalent parts include other 6.8 V Zener diodes in the DO-41 package with ±2% tolerance and 1.0 W power rating. Verify compatibility regarding thermal resistance, maximum reverse current, and dynamic impedance characteristics.