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1N4739P/TR12
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Product Detailed Parameters
- Description：DIODE ZENER 9.1V 1W DO204AL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±10%
- Power - Max：1 W
- Impedance (Max) (Zzt)：5 Ohms
- Current - Reverse Leakage @ Vr：10 µA @ 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 1N4739P/TR12 is a silicon Zener diode from the 1N4728AP through 1N4764AP series, designed for voltage regulation. It features a nominal Zener voltage of 9.1 V with a standard tolerance of ±5%. The device operates at a test current of 28 mA and provides a maximum power dissipation of 1.0 W. It utilizes a plastic DO-41 (DO-204AL) axial lead package and includes a TR suffix indicating tape and reel packaging.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Features flexible axial-lead mounting terminals suitable for various board layouts
- Constructed with a void-free transfer molded thermosetting epoxy body meeting UL94V-0 standards
- Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020
Applications
- Voltage regulation in electronic circuits
- Reference voltage sources
- Overvoltage protection applications
Procurement Notes
Verify that the component matches the specific JEDEC registered part number and plastic construction requirements. Confirm the presence of the TR suffix to ensure the correct tape and reel packaging format is received. Check for any prefix identifiers if military screening levels are required for the application environment.
Selection Notes
Select this component when a 9.1 V regulation point is needed within the 1N47 series family. The plastic encapsulation offers lower thermal resistance compared to glass-body options. Ensure the design accommodates the specified 1.0 W steady-state power dissipation and the -65ºC to +150ºC operating temperature range.
Part Context
This device belongs to the extensive 1N4728A to 1N4764A series of 1.0 watt Zener diodes manufactured by Microsemi's Scottsdale Division. The series covers a wide voltage selection from 3.3 to 100 volts. The 'P' suffix specifically denotes the plastic molded construction variant available in RoHS compliant devices with an 'e3' suffix.
Replacement Considerations
Surface mount equivalents are available as SMAJ4739A or MLL4739A. Glass-body versions exist under the same JEDEC numbering but require separate datasheet verification.
