2N5551 Datasheet & Equivalents
NPN
TO-92
General Purpose
DIOTEC
VCEO
160V
Ic Max
600mA
Pd Max
625mW
hFE Gain
250
Quick Reference
The 2N5551 is a NPN bipolar junction transistor in a TO-92 package, manufactured by DIOTEC. It supports a breakdown voltage of 160V and continuous collector current of 600mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIOTEC | Original Manufacturer |
| Package | TO-92 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 160V | Max breakdown voltage |
| Collector Current (Ic) | 600mA | Max current handling |
| Power Dissipation (Pd) | 625mW | Max thermal limit |
| DC Current Gain (hFE) | 250 | Base signal amplification ratio |
| Transition Frequency (fT) | 300MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | - | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | - | Max emitter-base breakdown |
| Collector Cutoff Current | - | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| 2N5550TFR-HXY | NPN | TO-92 | 160V | 600mA | 200 | 625mW | HXY MOSFET 📄 PDF |
| KSP8099TF-HXY | NPN | TO-92 | 160V | 600mA | 200 | 625mW | HXY MOSFET 📄 PDF |
| NTE194-HXY | NPN | TO-92 | 160V | 600mA | 200 | 625mW | HXY MOSFET 📄 PDF |
| NTE297-HXY | NPN | TO-92 | 160V | 600mA | 200 | 625mW | HXY MOSFET 📄 PDF |
| ZTX694B-HXY | NPN | TO-92 | 160V | 600mA | 200 | 625mW | HXY MOSFET 📄 PDF |
| 2N5551TA | NPN | TO-92 | 160V | 600mA | 80 | 625mW | onsemi 📄 PDF |
| 2N5551TFR | NPN | TO-92 | 160V | 600mA | 80 | 625mW | onsemi 📄 PDF |
| 2SC2383-Y | NPN | TO-92 | 160V | 1A | 320 | 700mW | YFW 📄 PDF |
| KSC2383OTA | NPN | TO-92 | 160V | 1A | 60 | 900mW | onsemi 📄 PDF |
| 3DD13002B(RANGE:25-30) | NPN | TO-92 | 400V | 800mA | 25 | 900mW | JSCJ 📄 PDF |
| PHE13003A | NPN | TO-92 | 400V | 1A | 7.5 | 2.1W | WeEn 📄 PDF |
| 412 | NPN | TO-92 | 400V | 1.5A | 20 | 900mW | JSCJ 📄 PDF |