BCW66H Datasheet & Equivalents
NPN
SOT-23
General Purpose
LGE
VCEO
75V
Ic Max
800mA
Pd Max
330mW
hFE Gain
630
Quick Reference
The BCW66H is a NPN bipolar junction transistor in a SOT-23 package, manufactured by LGE. It supports a breakdown voltage of 75V and continuous collector current of 800mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | LGE | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 75V | Max breakdown voltage |
| Collector Current (Ic) | 800mA | Max current handling |
| Power Dissipation (Pd) | 330mW | Max thermal limit |
| DC Current Gain (hFE) | 630 | Base signal amplification ratio |
| Transition Frequency (fT) | 170MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 700mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 20nA | Leakage current when OFF |
| Operating Temp | -65℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| FMMT620TA | NPN | SOT-23 | 80V | 1.5A | 60 | 625mW | DIODES 📄 PDF |
| FMMT634TA | NPN | SOT-23 | 100V | 900mA | 20000 | 625mW | DIODES 📄 PDF |
| CMPT8099-HXY | NPN | SOT-23 | 100V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT411TA-HXY | NPN | SOT-23 | 100V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT416TD-HXY | NPN | SOT-23 | 100V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT493TA-CN | NPN | SOT-23 | 100V | 1A | 300 | 250mW | ChipNobo 📄 PDF |
| PBSS8110T-HXY | NPN | SOT-23 | 100V | 1A | 300 | 250mW | HXY MOSFET 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 300 | 250mW | TECH PUBLIC 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 300 | 250mW | GOODWORK 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 300 | 250mW | MSKSEMI 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 200 | 500mW | LGE 📄 PDF |
| PBSS8110T | NPN | SOT-23 | 100V | 1A | 150 | 480mW | Nexperia 📄 PDF |
| 215 | NPN | SOT-23 | 100V | 1A | 100 | 250mW | JSCJ 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 100 | 250mW | R+O 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 100 | 250mW | FUXINSEMI 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 100 | 250mW | JSMSEMI 📄 PDF |
| FMMT493 | NPN | SOT-23 | 100V | 1A | 60 | 500mW | DIODES 📄 PDF |
| FMMT493QTA | NPN | SOT-23 | 100V | 1A | 60 | 500mW | DIODES 📄 PDF |
| FMMT493TA | NPN | SOT-23 | 100V | 1A | 60 | 500mW | DIODES 📄 PDF |
| FMMT493TC | NPN | SOT-23 | 100V | 1A | 60 | 500mW | BORN 📄 PDF |