FZT688B Transistor Datasheet & Specifications
NPN
SOT-223
High Power
DIODES
VCEO
12V
Ic Max
4A
Pd Max
3W
hFE Gain
500
Quick Reference
The FZT688B is a NPN bipolar transistor in a SOT-223 package by DIODES. This datasheet provides complete specifications including 12V breakdown voltage and 4A continuous collector current. Download the FZT688B datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIODES | Original Manufacturer |
| Package | SOT-223 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 12V | Breakdown voltage |
| Ic | 4A | Collector current |
| Pd | 3W | Power dissipation |
| DC Current Gain | 500 | hFE / Beta |
| Frequency | 150MHz | Transition speed (fT) |
| VCEsat | - | Saturation voltage |
| Vebo | - | Emitter-Base voltage |
| Cutoff Current | - | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| ZX5T851GTA | NPN | SOT-223 | 60V | 6A | 1.6W |
| ZXTN2005GTA | NPN | SOT-223 | 25V | 7A | 3W |
| STN851 | NPN | SOT-223 | 60V | 5A | 1.6W |
| FZT688BTA | NPN | SOT-223 | 12V | 4A | 1.6W |
| FZT855TA | NPN | SOT-223 | 150V | 5A | 3W |
| ZXTN19020DGTA | NPN | SOT-223 | 20V | 9A | 12.8W |
| FZT853TA | NPN | SOT-223 | 100V | 6A | 3W |
| PBSS306NZ,135 | NPN | SOT-223 | 100V | 5.1A | 1.7W |
| FZT1049ATA | NPN | SOT-223 | 25V | 5A | 3W |
| PBSS4540Z,115 | NPN | SOT-223 | 40V | 5A | 2W |