

Overview
The MMBT100 is a bipolar made by onsemi in a SOT-23 package with 3 pins. -55℃~+150℃ 1 NPN 100 250MHz 400mV 45V 500mA 50nA 625mW 6V NPN SOT-23 Bipolar (BJT) ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2E_3C, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 4 are in stock at JLCPCB (part C274690). 3 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
13- Collector - Emitter Voltage VCEO
- 45V
- Configuration
- Standalone
- Current - Collector Cutoff
- 50nA
- Current - Collector(Ic)
- 500mA
- DC Current Gain
- 100
- DC Current Gain (hFE@Ic,Vce)
- 100@100uA,1.0V
- Emitter-Base Voltage(Vebo)
- 6V
- Number
- 1 NPN
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 625mW
- Transition frequency(fT)
- 250MHz
- Vce Saturation(VCE(sat))
- 400mV
- type
- NPN
Order codes
1- MMBT100LCSC C274690
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | B | Input |
| 2 | E | Passive |
| 3 | C | Passive |
Open-source boards using it
All 3- 2 layers14.5 × 21.3 mm

- 2 layers80 × 64.8 mm

- 2 layers56.6 × 57.7 mm

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<iframe src="https://pcbkit.io/embed/parts/onsemi/MMBT100" title="MMBT100 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/onsemi/MMBT100.jpg" alt="MMBT100" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/MMBT100)Questions
Is there a KiCad symbol and footprint for the MMBT100?
Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2E_3C and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MMBT100?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the MMBT100 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the MMBT100?
JLCPCB lists it as part C274690, with 4 in stock; the sellers' links on this page open their listings.
What can replace the MMBT100?
Parts like it in the library: the S8050 by YONGYUTAI, the S8550 by YONGYUTAI, the 8550M-D by Foshan Blue Rocket Elec and the PBSS4160T by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MMBT100?
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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