Download the 1N4948 datasheet PDF.
This datasheet also includes the 1N4942 variant, as both parts are published together in a single manufacturer document.
Max Recurrent Peak Reverse Voltage Max RMS Voltage
Max DC Blocking Voltage
Max Average Forward Rectified Current
IFSM TJ,TSTG
Peak Forward Surge Current Operating and Storage Temperature Range
TRR Maximum Reverse Recovery Time
1N4942 200 140 200
150
1N4944
400 280 400
1N4946
600 420 600
1.0
1N4947
800 560 800
30 -65 to +150, -65 to +150
Overview
FAST RECOVERY RECIFIER
1N4942 ~ 1N4948 Fast Recovery Rectifier.
Key Features
Fast switching speed for high efficiency.
Low reverse leakage.
High forward surge current capability.
High temperature soldering guaranteed:
260℃/10 seconds, 0.375” (9.5mm) lead length.
RoHS and REACH Compliance
Mechanical Data
Case: Polarity Epoxy: Lead: Mounting position: Weight:
Transfer molded plastic Color band denotes cathode end UL94V.
0 rate flame retardant Plated axial lead, solderable per MIL-STD-202E method 208C Any 0.012 ounce, 0.33 gram
Maximum.
