BC817-40W-7 Datasheet & Equivalents
NPN
SOT-323
General Purpose
DIODES
VCEO
45V
Ic Max
500mA
Pd Max
200mW
hFE Gain
170
Quick Reference
The BC817-40W-7 is a NPN bipolar junction transistor in a SOT-323 package, manufactured by DIODES. It supports a breakdown voltage of 45V and continuous collector current of 500mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIODES | Original Manufacturer |
| Package | SOT-323 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 45V | Max breakdown voltage |
| Collector Current (Ic) | 500mA | Max current handling |
| Power Dissipation (Pd) | 200mW | Max thermal limit |
| DC Current Gain (hFE) | 170 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 700mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | -65℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| BC817-25W | NPN | SOT-323 | 45V | 500mA | 160 | 200mW | Nexperia 📄 PDF |
| 115 | NPN | SOT-323 | 45V | 500mA | 100 | 290mW | Nexperia 📄 PDF |
| BC817W | NPN | SOT-323 | 45V | 500mA | 600 | 200mW | MSKSEMI 📄 PDF |
| 115 | NPN | SOT-323 | 45V | 500mA | 600 | 290mW | Nexperia 📄 PDF |
| BC817-25W | NPN | SOT-323 | 45V | 500mA | 600 | 200mW | FUXINSEMI 📄 PDF |
| BC817-40W-QX | NPN | SOT-323 | 45V | 500mA | 600 | 200mW | LGE 📄 PDF |
| BC817-40W | NPN | SOT-323 | 60V | 500mA | 120 | 200mW | ROHM 📄 PDF |
| BC817-40W | NPN | SOT-323 | 60V | 500mA | 120 | 200mW | ROHM 📄 PDF |
| 2SC5876T106Q | NPN | SOT-323 | 60V | 500mA | 120 | 200mW | ROHM 📄 PDF |
| 2SC5876T106R | NPN | SOT-323 | 60V | 500mA | 100 | 200mW | DIODES 📄 PDF |
| 2SC5876U3T106Q | NPN | SOT-323 | 60V | 500mA | 50 | 200mW | Nexperia 📄 PDF |
| MMSTA05-7-F | NPN | SOT-323 | 60V | 750mA | 200 | 415mW | Nexperia 📄 PDF |
| PMSTA05 | NPN | SOT-323 | 60V | 1A | 100 | 400mW | DIODES 📄 PDF |
| 115 | NPN | SOT-323 | 60V | 1A | 100 | 250mW | JSCJ 📄 PDF |
| PBSS4160U | NPN | SOT-323 | 65V | 500mA | 250 | 200mW | amsem 📄 PDF |
| 115 | NPN | SOT-323 | 80V | 500mA | 100 | 200mW | DIODES 📄 PDF |
| DSS4160U-7 | NPN | SOT-323 | 80V | 500mA | 100 | 200mW | DIODES 📄 PDF |