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1N4249/TR
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Product Detailed Parameters
- Description：DIODE STANDARD 1KV 1AXIAL
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：1000 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.3 V @ 3 A
- Speed：Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：5 µs
- Current - Reverse Leakage @ Vr：1 µA @ 1 V
- Capacitance @ Vr, F：-
- Mounting Type：Through Hole
- Package / Case：A, Axial
- Supplier Device Package：A, Axial
- Operating Temperature - Junction：-65°C ~ 175°C
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Overview
The Microchip Technology 1N4249/TR is a standard recovery rectifier diode designed for through-hole mounting in an axial A-package. It features a maximum repetitive peak reverse voltage of 1000 V and a continuous forward current rating of 1 A. The device exhibits a maximum forward voltage drop of 1.3 V at rated current and a reverse leakage current of 1 µA. It supports a maximum surge current of 25 A and has a typical reverse recovery time of 5 µs. The component operates within a junction temperature range of -65 °C to +175 °C and is supplied in tape and reel packaging.
Feature Summary
- High voltage blocking capability suitable for demanding power applications
- Robust thermal performance with extended operating temperature range
- Standard recovery characteristics for general-purpose rectification
Applications
- High voltage power supply circuits
- Industrial control systems
- General purpose rectification in electronic equipment
Procurement Notes
Verify the specific manufacturer datasheet for the 1N4249/TR to confirm current production status, as availability may vary. Ensure the ordering suffix matches the required tape and reel configuration. Cross-reference electrical parameters such as reverse recovery time and forward voltage against your circuit design requirements before finalizing procurement decisions.
Selection Notes
Select this component when high reverse voltage isolation and moderate forward current handling are required in a through-hole package. Consider the 5 µs reverse recovery time for switching frequency limitations. Verify that the axial leaded form factor fits the printed circuit board layout constraints compared to surface mount alternatives.
Part Context
This part belongs to the standard recovery rectifier family from Microchip Technology. It is distinct from transient voltage suppression devices like the MX1N8149US/TR. The 1N4249 series is historically significant in electronics, with this specific variant offering high voltage ratings suitable for legacy and industrial designs requiring reliable axial-mounted rectification.
Replacement Considerations
The Vishay BYW56-TR is documented as a recommended alternative by distributors. Verify compatibility regarding package dimensions and electrical specifications before substitution.
