BC548CTA Datasheet & Equivalents
NPN
TO-92
General Purpose
onsemi
VCEO
30V
Ic Max
100mA
Pd Max
500mW
hFE Gain
110
Quick Reference
The BC548CTA is a NPN bipolar junction transistor in a TO-92 package, manufactured by onsemi. It supports a breakdown voltage of 30V and continuous collector current of 100mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | TO-92 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 30V | Max breakdown voltage |
| Collector Current (Ic) | 100mA | Max current handling |
| Power Dissipation (Pd) | 500mW | Max thermal limit |
| DC Current Gain (hFE) | 110 | Base signal amplification ratio |
| Transition Frequency (fT) | 300MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 250mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 15nA | Leakage current when OFF |
| Operating Temp | -65℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| 2N3904BU | NPN | TO-92 | 40V | 200mA | 100 | 625mW | onsemi 📄 PDF |
| 2N3904TFR | NPN | TO-92 | 40V | 200mA | 100 | 625mW | onsemi 📄 PDF |
| 2N3904TA | NPN | TO-92 | 40V | 200mA | 40 | 625mW | onsemi 📄 PDF |
| 2N3904X | NPN | TO-92 | 40V | 200mA | 300 | 625mW | JingYang 📄 PDF |
| 2N3904 | NPN | TO-92 | 40V | 200mA | 300 | 625mW | JSMSEMI 📄 PDF |
| BC547CBU | NPN | TO-92 | 45V | 100mA | 110 | 500mW | onsemi 📄 PDF |
| BC547CTA | NPN | TO-92 | 45V | 100mA | 110 | 500mW | onsemi 📄 PDF |
| S9014-TA(RANGE:200-600) | NPN | TO-92 | 45V | 100mA | 60 | 450mW | JSCJ 📄 PDF |
| 9014-C | NPN | TO-92 | 45V | 100mA | 200 | 450mW | BLUE ROCKET 📄 PDF |
| BC547B | NPN | TO-92 | 45V | 100mA | 200 | 625mW | LGE 📄 PDF |
| BC547CBK | NPN | TO-92 | 45V | 100mA | 420 | 500mW | DIOTEC 📄 PDF |
| BC547 | NPN | TO-92 | 45V | 100mA | 800 | 625mW | JSCJ 📄 PDF |
| BC547BTA | NPN | TO-92 | 45V | 100mA | 800 | 500mW | onsemi 📄 PDF |
| 2SC945 | NPN | TO-92 | 50V | 150mA | 90 | 250mW | BLUE ROCKET 📄 PDF |
| 2SC1815(RANGE:200-400) | NPN | TO-92 | 50V | 150mA | 70 | 400mW | JSCJ 📄 PDF |
| KSC1815YTA | NPN | TO-92 | 50V | 150mA | 70 | 400mW | onsemi 📄 PDF |
| 2SC1815-GR | NPN | TO-92 | 50V | 150mA | 200 | 400mW | BLUE ROCKET 📄 PDF |
| 2SC536N(RANGE:160-320) | NPN | TO-92 | 50V | 150mA | 560 | 625mW | JSCJ 📄 PDF |
| 2SC945-P | NPN | TO-92 | 50V | 150mA | 600 | 250mW | YFW 📄 PDF |
| 2SC1815-GR | NPN | TO-92 | 50V | 150mA | 700 | 400mW | YFW 📄 PDF |