1N4753CP/TR12

Overview

The Microchip Technology 1N4753CP/TR12 is a silicon planar Zener diode in the 1N4728AP through 1N4764AP series, housed in a DO-41 (DO-204AL) plastic axial-lead package. It provides voltage regulation with a nominal Zener voltage of 36 V and a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates at a test current of 7.0 mA and dissipates up to 1.0 watt at 25°C ambient temperature. It features a maximum dynamic impedance of 50 Ω and a reverse current of 5 µA at 27.4 V. The component is supplied in tape and reel packaging.

Feature Summary

• Provides precise voltage regulation with ±2% tolerance for stable reference applications
• Features low thermal resistance due to plastic molded construction compared to glass-body options
• Includes built-in strain relief and void-free transfer molded epoxy body meeting UL94V-0 flammability standards
• Offers flexible axial-lead mounting terminals suitable for standard PCB assembly

Applications

• Voltage regulation circuits requiring tight tolerance references
• Overvoltage protection stages in power supplies
• Clamping applications for transient voltage suppression

Procurement Notes

Verify that the ordering suffix matches the required specifications: 'P' indicates plastic construction, 'C' denotes ±2% voltage tolerance, and 'TR12' specifies tape and reel packaging. Confirm RoHS compliance status if lead-free terminals are mandatory, as standard versions may contain tin-lead plating. Ensure the supplier source aligns with Microchip Technology or authorized distributors to guarantee authenticity and traceability of the JEDEC registered part number.

Selection Notes

Select this component when a 36 V Zener reference with tighter than standard 5% accuracy is required. The plastic DO-41 package offers lower thermal resistance than glass equivalents. Consider the 'TR12' suffix only if automated surface mount or high-volume through-hole placement equipment utilizing tape and reels is utilized. Verify operating temperature requirements against the -65°C to +150°C range.

Part Context

This device belongs to the popular 1N4728A through 1N4764A series of 1.0 Watt Zener diodes manufactured by Microsemi, now part of Microchip Technology. The series covers a voltage selection from 3.3 to 100 volts. The specific 'CP' designation identifies it as a plastic encapsulated unit within this extensive lineup, distinct from glass-body variants which carry a 'G' suffix.

Replacement Considerations

Equivalent parts include other manufacturers' 1N4753A devices with matching 36 V and 1 W ratings. For tighter tolerance replacements, verify the availability of 1N4753C equivalents. Surface mount alternatives in the SMAJ or MLL series may be considered if layout changes are permissible.