2 layers124.5 × 129.5 mm
Overview
The MMBFJ177 is a JFET made by onsemi in a SOT-23 package with 3 pins. -55℃~+150℃ 1 P-Channel 20mA 225mW 300Ω 30V 800mV P-Channel SOT-23 JFETs ROHS.
PCBKit's library has its KiCad symbol (Transistors:P-JFET D1 S2 G3, from CERN's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C232842). 3 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Drain Current (Idss)
- 20mA
- FET Type
- P-Channel
- Gate-Source Breakdown Voltage (Vgss)
- 30V
- Gate-Source Cutoff Voltage (VGS(off))
- 800mV
- Number
- 1 P-Channel
- Operating Temperature
- -55℃~+150℃
- Pd - Power Dissipation
- 225mW
- RDS(on)
- 300Ω
Order codes
1- MMBFJ177LCSC C232842
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | D | Passive |
| 2 | S | Passive |
| 3 | G | Passive |
Open-source boards using it
All 3- 4 layers66 × 42 mm
- 4 layers203.2 × 101.6 mm
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<iframe src="https://pcbkit.io/embed/parts/onsemi/MMBFJ177" title="MMBFJ177 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/MMBFJ177.jpg" alt="MMBFJ177" width="1200" height="900">[](https://pcbkit.io/parts/onsemi/MMBFJ177)Questions
Is there a KiCad symbol and footprint for the MMBFJ177?
Yes. The symbol is Transistors:P-JFET D1 S2 G3 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 MMBFJ177?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the MMBFJ177 datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the MMBFJ177?
JLCPCB lists it as part C232842, with 0 in stock; the sellers' links on this page open their listings.
What can replace the MMBFJ177?
Parts like it in the library: the SMP5484-TR by InterFET, the CMPFJ176 TR PBFREE by Central Semicon and the SMP5484 by InterFET. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MMBFJ177?
3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
3
SMP5484-TR
SOT-23-55℃~+125℃ 1 N-channel 300mV、3V 360mW 4.3pF 5mA N-Channel SOT-23 JFETs ROHSInterFETJFETsCMPFJ176 TR PBFREE
SOT-23-65℃~+150℃ 1 P-Channel 125Ω 1V、4V 225mW 25mA 30V P-Channel SOT-23 JFETs ROHSCentral SemiconJFETsSMP5484
SOT23-55℃~+125℃ 1 N-channel 25V 300mV 360mW 4.3pF 5mA N-Channel SOT23 JFETs ROHSInterFETJFETs