1N4758CPE3/TR12

Overview

The Microchip Technology 1N4758CPE3/TR12 is a silicon 1.0-watt Zener diode in the 1N4728AP through 1N4764AP series, manufactured by Microsemi's Scottsdale Division. It provides voltage regulation with a nominal Zener voltage of 56 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 and features a plastic DO-41 (DO-204AL) axial-lead package. Electrical characteristics include a maximum dynamic impedance of 110 Ohms at a test current of 4.5 mA, a maximum reverse current of 5 µA at 56 V, and a maximum regulator current of 16 mA. It is RoHS compliant ('e3') and supplied in tape and reel packaging ('TR').

Feature Summary

• Provides precise voltage regulation with a standard ±2% tolerance on nominal Zener voltage.
• Features flexible axial-lead mounting terminals for standard through-hole applications.
• Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards.
• RoHS compliant devices available with annealed matte-Tin plating solderable per MIL-STD-750.

Applications

• Voltage stabilization circuits requiring high power ratings.
• Clipping circuits utilizing broad operating current ranges.
• Applications demanding specific tight voltage tolerances identified by the C suffix.

Procurement Notes

Verify that the ordering suffix accurately reflects the required specifications. The 'C' suffix denotes a ±2% voltage tolerance, while 'P' indicates plastic construction and 'e3' confirms RoHS compliance. Confirm the 'TR' suffix matches the required tape and reel packaging format. Ensure compatibility with the specified JEDEC registration and thermal resistance parameters for your design environment.

Selection Notes

Select this component when a 56 V Zener voltage with ±2% precision is required for power dissipation up to 1.0 watts. The plastic DO-41 package offers lower thermal resistance compared to glass-body options. Consider the maximum regulator current of 16 mA and the operating temperature range of -65°C to +150°C to ensure suitability for the intended thermal and electrical load conditions.

Part Context

This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0-watt Zener diodes produced by Microsemi. The series covers a voltage selection from 3.3 to 100 volts. While originally associated with Microsemi, these products are now part of the Microchip Technology portfolio. The series includes various screening levels and package options to meet diverse industrial and commercial requirements.

Replacement Considerations

Surface mount equivalents are available as SMAJ4758A or MLL4758A. Consult the manufacturer for other compatible surface mount options or alternative screening levels such as JAN, JANTX, JANTXV, or JANS if military specifications are required.

FAQ

What does the 'C' suffix indicate in the part number?

The 'C' suffix signifies a standard voltage tolerance of plus or minus 2% on the nominal Zener voltage.

Is this device sensitive to electrostatic discharge?

No, the device is nonsensitive to ESD per MIL-STD-750 Method 1020.

What is the moisture classification for this component?

The plastic encapsulated Zeners are moisture classified as Level 1 per IPC/JEDEC J-STD-020B with no dry pack required.