FMMT618 Datasheet & Equivalents
NPN
SOT-23
General Purpose
HXY MOSFET
VCEO
20V
Ic Max
2.5A
Pd Max
350mW
hFE Gain
300
Quick Reference
The FMMT618 is a NPN bipolar junction transistor in a SOT-23 package, manufactured by HXY MOSFET. It supports a breakdown voltage of 20V and continuous collector current of 2.5A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | HXY MOSFET | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 20V | Max breakdown voltage |
| Collector Current (Ic) | 2.5A | Max current handling |
| Power Dissipation (Pd) | 350mW | Max thermal limit |
| DC Current Gain (hFE) | 300 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | 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 |
|---|---|---|---|---|---|---|---|
| FMMT618-JSM | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | JSMSEMI 📄 PDF |
| FMMT618-TP | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | MCC 📄 PDF |
| HFMMT618TA | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | HXY MOSFET 📄 PDF |
| PBSS4320T-HXY | NPN | SOT-23 | 20V | 2.5A | 300 | 350mW | HXY MOSFET 📄 PDF |
| FMMT618QTA | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| FMMT618TA | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| ZXT11N20DFTA | NPN | SOT-23 | 20V | 2.5A | 200 | 625mW | DIODES 📄 PDF |
| ZXTN25020DFHTA | NPN | SOT-23 | 20V | 4.5A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTN25020BFHTA | NPN | SOT-23 | 20V | 4.5A | 100 | 1.25W | DIODES 📄 PDF |
| D965 | NPN | SOT-23 | 22V | 5A | 600 | 350mW | HT(Shenzhen J... 📄 PDF |
| D882SSG-P-AE3-R | NPN | SOT-23 | 30V | 3A | 160 | 10W | UTC 📄 PDF |
| D882S | NPN | SOT-23 | 30V | 3A | 30 | 1W | Shikues 📄 PDF |
| ZXTN25040DFHTA | NPN | SOT-23 | 40V | 4A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTN25050DFHTA | NPN | SOT-23 | 50V | 4A | 300 | 1.25W | DIODES 📄 PDF |
| ZXTN2031FTA | NPN | SOT-23 | 50V | 5A | 200 | 1.2W | DIODES 📄 PDF |