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1N4748E3/TR13
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Product Detailed Parameters
- Description：DIODE ZENER 22V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：22 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：23 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 16.7 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 1N4748E3/TR13 is a silicon 1-watt Zener diode in the 1N4728AP through 1N4764AP series. It provides voltage regulation with a nominal Zener voltage of 22 V and a standard tolerance of ±5%. 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 23 Ohms at a test current of 11.5 mA, a maximum reverse current of 5 µA at 16.7 V, and a maximum regulator current of 41 mA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals for standard circuit integration
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
Applications
- Voltage regulation in power supply circuits
- Reference voltage generation in electronic systems
- Overvoltage protection applications
Procurement Notes
Verify that the ordering suffix TR13 corresponds to the tape and reel packaging option described in the datasheet as adding a TR suffix. Confirm RoHS compliance via the e3 suffix. Ensure the component matches the specific JEDEC type number requirements for your design. Check for any military screening prefixes if higher reliability levels are required.
Selection Notes
Select this component when a 22 V regulation point is needed with ±5% tolerance. Consider the 1 W power dissipation limit and thermal resistance values for heat management. Verify that the axial lead format fits the board layout constraints. Compare against other series members for different voltage or tolerance requirements.
Part Context
This part belongs to the popular 1N4728AP through 1N4764AP series of 1.0 watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series offers an extensive voltage selection from 3.3 to 100 volts. These plastic encapsulated devices are moisture classified as Level 1 and are available in RoHS compliant versions with the e3 suffix.
Replacement Considerations
Surface mount equivalents such as SMAJ4748A or MLL4748A are available. Other manufacturers may offer direct replacements within the 1N4748 specification. Verify pinout compatibility and thermal performance when substituting.
