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1N4744UR/TR
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Product Detailed Parameters
- Description：DIODE ZENER 15V 1W DO213AB
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：15 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：14 Ohms
- Current - Reverse Leakage @ Vr：5 µA @ 11.4 V
- Operating Temperature：-65°C ~ 175°C
- Mounting Type：Surface Mount
- Package / Case：DO-213AB, MELF (Glass)
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 200 mA
- Grade：-
- Qualification：-
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Overview
The Microchip Technology 1N4744UR/TR is a surface mountable 1.0-watt glass Zener diode in the DO-213AB MELF package. It provides a nominal Zener voltage of 15V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features hermetically sealed construction suitable for high-reliability applications.
Feature Summary
- Hermetically sealed glass MELF package
- Electrically equivalent to JEDEC registered 1N4728A through 1N4764A series
- Inherently radiation hard per MicroNote 050
- Leadless design ideal for high density mounting
Applications
- Voltage regulation in high density circuits
- High reliability applications requiring source control drawings
- Low parasitic requirement environments
Procurement Notes
Verify the specific suffix requirements against the official datasheet before ordering. Confirm that the TR suffix corresponds to tape and reel packaging specifications. Ensure compatibility with RoHS compliance standards if required by the application. Cross-reference the part number with the manufacturer's current documentation to validate availability and manufacturing origin.
Selection Notes
Select this component when a 1-watt surface mount Zener diode is required for voltage regulation. The DO-213AB package offers a leadless form factor beneficial for space-constrained designs. Consider the wide operating temperature range and radiation hardness for demanding industrial or aerospace environments where standard plastic packages may be insufficient.
Part Context
This component belongs to the 1N4728UR thru 1N4764AUR series of surface mount Zener diodes manufactured by Microchip Technology. The series provides a broad selection of voltages from 3.3V to 100V in a standardized glass MELF package, serving as a direct surface mount replacement for traditional axial-leaded equivalents.
Replacement Considerations
Direct surface mount equivalents include the MLL4728A thru MLL4764A series. Plastic body axial-leaded equivalents are available as the 1N4728A to 1N4764A series.
