1N4947 Datasheet – 1A, 800V, Recovery Rectifier, Diode

Part Number: 1N4947

Function: 800V, 1A, Fast Recovery Rectifier

Package: DO-41 Type

Manufacturer: Rectron Semiconductor

Image and Pinouts:

1N4947 datasheet

Description :

The 1N4947 is 1A, 800V, Recovery Rectifier.

A Fast Recovery Rectifier (FRR) is a type of diode used in electronic circuits to convert alternating current (AC) to direct current (DC).

It is designed to minimize the amount of time it takes for the diode to switch from conducting (allowing current to flow in one direction) to non-conducting (blocking current flow in the opposite direction), which is called the recovery time.


1. High switching capability
2. Low leakage
3. Low forward voltage drop
4. High current capability
5. High surge current capability

Maximum Ratings:

1. Maximum Recurrent Peak Reverse Voltage : Vrrm = 800 V
2. Maximum RMS Voltage : Vrms = 560 V
3. Maximum DC Blocking Voltage : Vdc = 800 V
4. Maximum Average Forward Rectified Current : Io = 1.0 A

Mechanical Data:

1. Case: Molded plastic
2. Epoxy: Device has UL flammability classification 94V-O
3. Lead: MIL-STD-202E method 208C guaranteed
4. Mounting position: Any
5. Weight: 0.33 gram

Other data sheets are available within the file:

1N4942 : Vrrm = 200 V

1N4944 : Vrrm = 400 V

1N4946 : Vrrm = 600 V

1N4948 : Vrrm = 1000 V

1N4947 Datasheet

1N4947 pdf