Toshiba TMBT3904,LM NPN transistor, 50 V collector-emitter breakdown, 150 mA collector current, 300 MHz transition frequency, SOT-23-3 surface-mount package, 320 mW power dissipation.
| Parameter / Attribute | Specification / Value |
|---|---|
| Mounting | Surface Mount |
| FET type | NPN |
| Voltage - collector emitter breakdown | 50 V |
| Current - collector (Ic) | 150 mA |
| Current - collector cutoff | 100nA (ICBO) |
| DC current gain (hFE) (Min) @ ic, vce | 100 @ 10mA, 1V |
| Power - max | 320 mW |
| Frequency - transition | 300MHz |
| Operating temperature | 150°C (TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | TO-236-3, SC-59, SOT-23-3 |
| Vce saturation (Max) @ ib, ic | 300mV @ 5mA, 50mA |
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The TMBT3904,LM from Toshiba is a general-purpose NPN switching transistor in the industry-standard SOT-23-3 package.
At a base drive of 5 mA and collector current of 50 mA, the Vce(sat) maximum is 300 mV — a clean saturation voltage that keeps on-state dissipation low in switching loads.
The TMBT3904,LM is the SOT-23 surface-mount version of the classic 2N3904 NPN transistor. It shares the same electrical ratings — 50 V Vce, 150 mA Ic, 300 MHz ft — in a smaller, surface-mount package for modern PCB assembly.