1N4754CP/TR12

Overview

The 1N4754CP/TR12 is a silicon 1.0-watt Zener diode manufactured by Microchip Technology (formerly Microsemi). It provides voltage regulation at a nominal Zener voltage of 39V with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates within an ambient temperature range of -65°C to +150°C and features a plastic DO-41 (DO-204AL) axial-lead package. Electrical characteristics include a maximum dynamic impedance of 60 Ohms at a test current of 6.5 mA, a maximum reverse leakage current of 5 µA, and a steady-state power dissipation of 1.0 watt.

Feature Summary

• Provides precise voltage regulation with a standard ±2% tolerance on nominal Zener voltage.
• Features a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards.
• Offers flexible axial-lead mounting terminals suitable for through-hole applications.
• Operates reliably over a broad temperature range from -65°C to +150°C.

Applications

• Voltage regulation in electronic circuits requiring stable reference voltages.
• Protection against voltage spikes and transient overvoltage events.
• Clipping and clamping applications in signal processing systems.

Procurement Notes

Verify that the ordering suffix matches the required specifications. The 'P' indicates plastic construction, while 'C' confirms the ±2% voltage tolerance. Ensure the 'TR12' suffix aligns with the specific tape and reel packaging requirements for automated assembly processes. Confirm RoHS compliance status if environmental regulations apply to the final product design.

Selection Notes

Select this component when a 39V regulation point with high precision is required. The ±2% tolerance makes it suitable for applications where tighter control than the standard 5% or 10% variants is necessary. Consider the 1W power rating and thermal resistance characteristics for heat dissipation planning in the target circuit layout.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1.0-watt Zener diodes. The series offers an extensive voltage selection ranging from 3.3V to 100V. While the base JEDEC numbers define the voltage, suffixes like 'C' specify tighter tolerances, and 'P' denotes the plastic package option preferred for lower thermal resistance compared to glass-body alternatives.

Replacement Considerations

Direct substitutes within the same series include other 1N4754 variants with different tolerances, such as 1N4754A (±5%) or 1N4754B (±10%). Surface mount equivalents are available in SMAJ and MLL packages, though mechanical compatibility must be verified.