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1N4944GP-M3/54
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Product Detailed Parameters
- Description：DIODE STANDARD 400V 1A DO204AL
- Series：SUPERECTIFIER®
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：400 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.3 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：150 ns
- Current - Reverse Leakage @ Vr：1 µA @ 400 V
- Capacitance @ Vr, F：15pF @ 4V, 1MHz
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-204AL (DO-41)
- Operating Temperature - Junction：-65°C ~ 175°C
- Grade：-
- Qualification：-
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Overview
The Vishay 1N4944GP-M3/54 is a glass-passivated junction fast switching plastic rectifier. It features a Superectifier structure for high reliability and low leakage current. The device operates with a maximum average forward rectified current of 1.0 A and a peak forward surge current of 25 A. It has a maximum repetitive peak reverse voltage of 400 V, a maximum instantaneous forward voltage of 1.3 V at 1.0 A, and a maximum DC reverse current of 1.0 μA at rated blocking voltage. The typical reverse recovery time is 150 ns. Operating junction and storage temperature range is -65 to +175 °C.
Feature Summary
- Superectifier structure ensures high reliability under demanding conditions
- Cavity-free glass-passivated junction provides robust protection
- Fast switching capability enables high efficiency in power applications
Applications
- Fast switching rectification in power supplies
- Inverter circuits
- Converter systems
- Freewheeling diodes for consumer electronics
- Telecommunication equipment
Procurement Notes
Verify the specific ordering suffix against official Vishay documentation to confirm package type and delivery mode. Confirm RoHS compliance status as indicated by the E3 suffix. Ensure the component matches the DO-41 (DO-204AL) package outline dimensions. Validate that the part number corresponds to the 400V rating variant within the 1N494x series.
Selection Notes
Select this component for applications requiring fast switching and high reliability. Consider the 400V reverse voltage rating and 1.0A forward current capacity. Evaluate thermal resistance requirements for the specific mounting configuration. Verify compatibility with soldering processes per JESD standards. Assess suitability for freewheeling applications in telecommunication or consumer devices.
Part Context
This component belongs to the 1N494xGP series of glass-passivated fast switching rectifiers from Vishay General Semiconductor. It shares the Superectifier technology and DO-41 package form factor with variants like 1N4942GP and 1N4946GP. The series is designed for general-purpose high-efficiency rectification where fast recovery characteristics are beneficial.
Replacement Considerations
Direct substitutes within the same Vishay series include 1N4942GP-E3/54 (200V), 1N4946GP-E3/54 (600V), 1N4947GP-E3/54 (800V), and 1N4948GP-E3/54 (1000V). Cross-brand replacements must match the 1A current, 400V voltage, 150ns recovery time, and DO-41 package specifications.
FAQ
What is the maximum repetitive peak reverse voltage for the 1N4944GP?
The maximum repetitive peak reverse voltage (VRRM) for the 1N4944GP is 400 V.
Does the 1N4944GP have a cavity-free junction?
Yes, the 1N4944GP features a cavity-free glass-passivated junction for enhanced reliability.
What is the typical reverse recovery time for this component?
The typical maximum reverse recovery time (trr) for the 1N4944GP is 150 ns.
