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1N4934
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Product Detailed Parameters
- Description：DIODE STANDARD 100V 1A DO41
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Standard
- Voltage - DC Reverse (Vr) (Max)：100 V
- Current - Average Rectified (Io)：1A
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Speed：Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr)：150 ns
- Current - Reverse Leakage @ Vr：5 µA @ 100 V
- Capacitance @ Vr, F：12pF @ 4V, 1MHz
- Mounting Type：Through Hole
- Package / Case：DO-204AL, DO-41, Axial
- Supplier Device Package：DO-41
- Operating Temperature - Junction：-50°C ~ 150°C
- Grade：-
- Qualification：-
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Overview
The onsemi 1N4934 is an axial-lead fast-recovery rectifier designed for high-efficiency switching applications. It features a peak repetitive reverse voltage of 100 V and supports an average rectified forward current of 1.0 A at 75°C ambient temperature. The device exhibits a typical reverse recovery time of 150 ns, enabling operation at frequencies up to 250 kHz. Electrical characteristics include a maximum instantaneous forward voltage of 1.2 V at 150°C junction temperature and a non-repetitive peak surge current rating of 30 A.
Feature Summary
- Fast recovery performance with typical 150 ns reverse recovery time
- Plastic epoxy molded case with UL flammability classification 94V-0
- Capable of high efficiency operation at frequencies up to 250 kHz
- Lead-free construction compliant with environmental standards
Applications
- DC power supplies
- Inverters and converters
- Ultrasonic systems
- Choppers
- Free wheeling diodes
Procurement Notes
Verify the specific ordering suffix when purchasing. The base part number indicates standard bag packaging, while adding the RL suffix secures tape and reel quantities. Confirm RoHS compliance status based on the G suffix if required by assembly specifications. Ensure the component meets the thermal resistance requirements for the intended printed circuit board mounting configuration.
Selection Notes
Select this component for circuits requiring 100 V blocking capability with fast switching speeds. The DO-41 package accommodates through-hole mounting. Verify that the operating frequency does not exceed 250 kHz to maintain efficiency. Consider derating the forward current by 20% if the load is capacitive rather than resistive.
Part Context
This device belongs to the 1N493x series of fast-recovery rectifiers manufactured by onsemi. The series covers reverse voltage ratings from 50 V to 600 V, sharing identical mechanical dimensions and thermal characteristics. The 1N4934 specifically targets the 100 V segment of this product line.
Replacement Considerations
Compatible substitutes within the same family include the 1N4933 (50 V) and 1N4935 (200 V), provided the voltage ratings align with the circuit design requirements.
