onsemi MJF31CG BJTs
NPN Bipolar Power Transistor, TO-220 3 LEAD FULLPAK, 50-TUBE

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
MJF31CG
Detailed Description
NPN Bipolar Power Transistor, TO-220 3 LEAD FULLPAK, 50-TUBE
Package
TO-220-3 Full Pack
Lifecycle Status
Active
Datasheet
MJF31CG Datasheet
Quick Jump:
Technical Specifications
onsemi MJF31CG BJTs technical specifications.
General
Package / Case
TO-220-3 Full Pack
Mounting Type
Through Hole
Operating Temperature
-65°C ~ 150°C (TJ)
Lifecycle Status
Active
Description
TRANS NPN 100V 3A TO-220FP
Detailed Description
Bipolar (BJT) Transistor NPN 100 V 3 A 3MHz 2 W Through Hole TO-220FP
Dc Current Gain Hfe Min IC Vce
10 @ 3A, 4V
Power Max
2 W
Frequency Transition
3MHz
Transistor Type
NPN
Alternate Parts Comparison (MJF31CG vs MJF122G vs MJF127G vs MJF18008G)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | TO-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Lifecycle Status | Active | Active | Active | Active |
| Current Collector Cutoff Max | 300µA | 10µA | 10µA | 100µA |
| Current Collector IC Max | 3 A | 5 A | 5 A | 8 A |
| Dc Current Gain Hfe Min IC Vce | 10 @ 3A, 4V | 2000 @ 3A, 3V | 2000 @ 3A, 3V | 14 @ 1A, 5V |
| Description | TRANS NPN 100V 3A TO-220FP | TRANS NPN DARL 100V 5A TO-220FP | TRANS PNP DARL 100V 5A TO-220FP | TRANS NPN 450V 8A TO-220FP |
| Detailed Description | Bipolar (BJT) Transistor NPN 100 V 3 A 3MHz 2 W Through Hole TO-220FP | Bipolar (BJT) Transistor NPN - Darlington 100 V 5 A 2 W Through Hole TO-220FP | Bipolar (BJT) Transistor PNP - Darlington 100 V 5 A 2 W Through Hole TO-220FP | Bipolar (BJT) Transistor NPN 450 V 8 A 13MHz 45 W Through Hole TO-220FP |
| Power Max | 2 W | 2 W | 2 W | 45 W |
| Transistor Type | NPN | NPN - Darlington | PNP - Darlington | NPN |
| Vce Saturation Max Ib IC | 1.2V @ 375mA, 3A | 3.5V @ 20mA, 5A | 3.5V @ 20mA, 5A | 700mV @ 900mA, 4.5A |
| Action |
More Parts in BJTs
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.