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1N4749CP/TR8
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Product Detailed Parameters
- Description：DIODE ZENER 24V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：24 V
- Tolerance：±2%
- Power - Max：1 W
- Impedance (Max) (Zzt)：25 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 18.2 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4749CP/TR8 is a silicon 1.0-watt Zener diode in a plastic DO-41 (DO-204AL) axial package. It provides voltage regulation with a nominal Zener voltage of 24 V and a tight tolerance of ±2%. The device operates within a temperature range of -65°C to +150°C, featuring a maximum dynamic impedance of 25 ohms at a test current of 10.5 mA. It includes a TR suffix for tape and reel packaging.
Feature Summary
- Provides precise voltage regulation with a ±2% tolerance on the 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
- Low voltage stabilizers
- Voltage reference circuits
- Overvoltage protection
Procurement Notes
Verify that the ordering suffix 'P' confirms the plastic encapsulated construction and 'TR' indicates tape and reel packaging. Confirm the 'C' suffix corresponds to the specified ±2% voltage tolerance. Ensure the component meets the required thermal resistance and power dissipation ratings for the specific application environment.
Selection Notes
Select this component when a 24 V regulation point with high precision is required. The plastic package offers lower thermal resistance compared to glass-body options. Consider the ±2% tolerance if tighter voltage accuracy is necessary compared to standard 5% or 10% variants.
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 'P' suffix designates the plastic construction variant within this family.
Replacement Considerations
Compatible substitutes include other 1N4749 variants with matching electrical characteristics. Verify that alternative parts maintain the same 24 V nominal voltage, 1 W power rating, and ±2% tolerance specification.
