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1N4749CPE3/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 1N4749CPE3/TR8 is a silicon 1.0-watt Zener diode in a plastic DO-41 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 RoHS compliance via the e3 suffix and tape-and-reel packaging.
Feature Summary
- Provides precise voltage regulation with a tight +/- 2% tolerance on the nominal Zener voltage.
- Features flexible axial-lead mounting terminals for standard through-hole integration.
- Constructed with a void-free transfer molded thermosetting epoxy body that meets UL94V-0 standards.
Applications
- Voltage regulation circuits requiring stable reference voltages
- Power supply protection against overvoltage conditions
- Clamping applications in electronic signal processing
Procurement Notes
Verify the specific C suffix indicates the required 2% tolerance level for your design. Confirm the TR8 suffix matches the reel quantity specifications needed for your assembly line. Ensure the RoHS compliant e3 designation aligns with environmental compliance requirements for the final product assembly.
Selection Notes
Select this component when a 24 V reference with high precision is necessary. The plastic construction offers lower thermal resistance compared to glass-body options. Verify that the 1.0 W power dissipation rating and the specified operating temperature range meet the thermal management constraints of the target application environment.
Part Context
This part belongs to the 1N4728AP thru 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi (now Microchip). The series covers a wide voltage selection from 3.3 to 100 volts. The 'P' suffix denotes plastic encapsulation, while the 'C' suffix specifies the tighter 2% voltage tolerance variant within the JEDEC registered lineup.
Replacement Considerations
Compatible substitutes include other 24 V Zener diodes with 1 W power ratings and 2% tolerance in the DO-41 package. Ensure any replacement maintains the same thermal resistance characteristics and reverse surge current capabilities as defined in the original datasheet.
