1N4937 The 1N4937 is a 600V, 1A fast recovery rectifier diode from ON Semiconductor. It features a 150ns reverse recovery time and is housed in a DO-41 axial lead package.
Mfr Part #:

1N4937

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N4937 is a 600V, 1A fast recovery rectifier diode from ON Semiconductor. It features a 150ns reverse recovery time and is housed in a DO-41 axial lead package.
Total Stock: 8,701 pcs

1N4937 Available from 3 distributors

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1N4937 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Capacitance @ Vr, F
Current
Current - Average Rectified (Io)
Current - Surge
Diode Type
Halogen Free
Industrial Grade
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Operating Temperature - Junction
Package / Case
Reverse Recovery Time (trr)
SVHC Present
Speed
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Voltage
Voltage - DC Reverse (Vr) (Max)
Voltage - Forward (Vf) (Max) @ If

1N4937 Description

Short technical summary and product information.

The 1N4937 is an axial-lead fast recovery rectifier designed by ON Semiconductor for applications such as DC power supplies, inverters, converters, ultrasonic systems, choppers, low RF interference, and free wheeling diodes. It offers a typical reverse recovery time of 150 nanoseconds, enabling high efficiency at frequencies up to 250 kHz.

 

Key electrical ratings include a peak repetitive reverse voltage of 600 V, average rectified forward current of 1 A, forward voltage drop of 1.2 V at 1 A, non-repetitive peak surge current of 30 A, and junction capacitance of 12 pF at 4 V, 1 MHz. The operating junction temperature range is -50°C to 150°C.

 

The device is through-hole mounted, supplied in a DO-204AL (DO-41) axial lead package. It weighs approximately 0.4 grams and features epoxy molded case with corrosion-resistant leads. The datasheet indicates this is a Pb-Free device.

1N4937 Quick Information

Product Type: Fast Recovery Rectifier
Series: 1N493x
Canonical Name: 1N4937 Fast Recovery Rectifier, 600V, 1A, DO-41
Subcategory: Single Diode Rectifiers

1N4937 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

1N4937 Features

  • Fast recovery time of 150 ns typical
  • Rated for 600V reverse voltage
  • Average forward current of 1A
  • DO-41 axial lead package
  • Pb-Free device per datasheet

1N4937 Applications

  • Used in DC power supplies
  • Inverter and converter circuits
  • Freewheeling diode applications
  • High frequency rectification up to 250kHz

1N4937 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of 1N4937?

600 V

What is the average forward current rating?

1 A

What is the forward voltage drop at 1A?

1.2 V

What is the reverse recovery time?

150 ns

What package does the 1N4937 come in?

DO-204AL (DO-41) axial lead through-hole package

What is the operating junction temperature range?

-50°C to 150°C

What is the non-repetitive surge current rating?

30 A

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