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1N4447
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Product Detailed Parameters
- Description：DIODE STANDARD 75V 200MA DO204AH
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：75 V
- Current - Average Rectified (Io)：200mA
- Voltage - Forward (Vf) (Max) @ If：1 V @ 20 mA
- Speed：Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr)：4 ns
- Current - Reverse Leakage @ Vr：25 nA @ 20 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：DO-204AH, DO-35, Axial
- Supplier Device Package：DO-204AH (DO-35)
- Operating Temperature - Junction：-65°C ~ 150°C
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Overview
The Microchip Technology 1N4447 is a silicon rectifier diode featuring a single element configuration housed in a hermetically sealed glass DO-35 (DO-204AH) package. It supports a maximum average forward rectified current of 0.2 A and offers a repetitive peak reverse voltage rating of 75 V. The device operates within an extended temperature range from -65 °C to +150 °C, ensuring reliability in demanding environments.
Feature Summary
- Hermetically sealed construction utilizing double-plug glass encapsulation for environmental protection
- Internal metallurgical bonded design providing structural integrity under mechanical stress
- Fast switching characteristics optimized for high-speed signal processing applications
Applications
- Computer peripheral equipment interfaces
- Magnetic core memory decoding circuits
- Thin-film memory encoding systems
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm exact screening levels and compliance standards. Ensure the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Cross-reference the part number with MIL-PRF-19500 specifications if military-grade performance is required for the application.
Selection Notes
Select this component when a fast-switching rectifier with hermetic sealing is necessary for space-constrained designs. The DO-35 package suits through-hole mounting requirements where robust physical bonding is critical. Consider the 0.2 A current limit and 75 V reverse voltage ratings to ensure adequate headroom for the target circuit conditions.
Part Context
This device belongs to the JEDEC-registered 1N4446–1N4449 series of small-signal switching diodes manufactured by Microchip Technology. These components are widely recognized for their reliability in digital logic and computer memory applications. The series maintains consistent electrical characteristics while offering various packaging options to meet diverse assembly needs.
Replacement Considerations
Consult official substitution guides for equivalent parts meeting identical MIL-PRF-19500 specifications. Verify pinout compatibility and thermal management requirements before integrating alternative suppliers.
