STB140NF55T4 MOSFET Datasheet & Specifications
N-Channel
D2PAK
High-Current
ST
Vds Max
55V
Id Max
80A
Rds(on)
8mΩ@10V
Vgs(th)
4V
Quick Reference
The STB140NF55T4 is an N-Channel MOSFET in a D2PAK package, manufactured by ST. It supports a drain-source breakdown voltage of 55V and a continuous drain current of 80A. It is widely used in switching and power applications.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | ST | Original Manufacturer |
| Package | D2PAK | Physical mounting |
| Transistor Type | MOSFET | Metal-Oxide-Semiconductor FET |
| Category | Single | Configuration |
| Drain-Source Voltage (Vds) | 55V | Max breakdown voltage |
| Continuous Drain Current (Id) | 80A | Max current handling |
| Power Dissipation (Pd) | 300W | Max thermal limit |
| On-Resistance (Rds(on)) | 8mΩ@10V | Resistance when turned fully on |
| Gate Threshold (Vgs(th)) | 4V | Voltage required to turn on |
| Gate Charge (Qg) | 142nC@10V | Switching energy |
| Input Capacitance (Ciss) | 5.3nF | Internal gate capacitance |
| Output Capacitance (Coss) | 1nF | Internal output capacitance |
| Operating Temp | -55℃~+175℃ | Safe junction temperature range |
Equivalent MOSFETs & Alternatives
| Part | Type | Package | Vds | Id | Rds(on) | Vgs(th) | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| IRF3205STRLPBF | N-Channel | D2PAK | 55V | 110A | 8mΩ@10V | 4V | Infineon 📄 PDF |
| IRFS7734TRLPBF | N-Channel | D2PAK | 75V | 183A | 2.8mΩ@10V | 3.7V | Infineon 📄 PDF |