1N4735P/TR12

Overview

The Microchip Technology 1N4735P/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, housed in a plastic DO-41 (DO-204AL) axial-lead package. It provides voltage regulation with a nominal Zener voltage of 6.2 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 2 Ω at a test current of 41 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 through-hole applications
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
• Moisture classification is Level 1 per IPC/JEDEC J-STD-020B with no dry pack required

Applications

• Voltage regulation in power supply circuits
• Reference voltage generation in electronic systems
• Overvoltage protection for sensitive components

Procurement Notes

Verify that the ordering suffix matches the specific requirements for packaging and compliance. Confirm the presence of the P suffix indicates plastic construction and the TR suffix denotes tape and reel packaging. Ensure the part number aligns with the manufacturer's current datasheet specifications for electrical characteristics and mechanical dimensions before finalizing procurement orders.

Selection Notes

Select this component when a 6.2 V reference with 5% tolerance is required in a 1-watt power dissipation class. Consider the plastic DO-41 package for its lower thermal resistance compared to glass-body options. Verify compatibility with automated assembly processes if the tape and reel configuration is necessary for the manufacturing line.

Part Context

This component belongs to the widely used 1N4728A through 1N4764A series of JEDEC-registered Zener diodes. The series offers an extensive voltage selection from 3.3 to 100 volts. The P suffix designates the plastic encapsulated version, while the TR suffix indicates availability in tape and reel format for high-volume production environments.

Replacement Considerations

Surface mount equivalents are available as SMAJ4735A or MLL4735A. Other manufacturers offer direct replacements within the 1N4735A specification. Verify pinout compatibility and thermal management requirements when substituting with alternative packages.