6 layers144 × 130 mm
Overview
The CJ3400 is a MOSFET made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-23 package with 3 pins. 1 N-channel 1.05nF 1.4V 30V 350mW 5.8A 52mΩ@2.5V 66pF 77pF N-Channel SOT-23 MOSFETs ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NMOS_1G_2S_3D, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 163,484 are in stock at JLCPCB (part C19019). 6 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
10- Drain-source, most
- 30 V · drain-source voltage, absolute max · p. 1
- Gate-source, most
- 12 V · gate-source voltage, ±12 V absolute max · p. 1
- Drain current, most
- 5.8 A · continuous drain current at Ta = 25 °C, max · p. 1
- Junction, hottest
- 150 °C · junction temperature, absolute max · p. 1
- Junction to air (SOT-23)
- 357 K/W · junction to ambient, FR4 board, t < 5 sec, max · p. 1
- On resistance
- 35 mΩ · VGS = 10 V, ID = 5.8 A, max · p. 2
- On resistance
- 40 mΩ · VGS = 4.5 V, ID = 5 A, max · p. 2
- On resistance
- 52 mΩ · VGS = 2.5 V, ID = 4 A, max · p. 2
- Gate threshold
- 1.4 V · VDS = VGS, ID = 250 uA, max · p. 2
- Forward voltage
- 1 V · body diode, IS = 1 A, VGS = 0 V, max · p. 2
Parameters
16- Current - Continuous Drain(Id)
- 5.8A
- Drain Source On Resistance (RDS(on)@Vgs,Id)
- 35mΩ@10V,5.8A
- Drain to Source Voltage
- 30V
- Gate Threshold Voltage (Vgs(th))
- 1.4V
- Gate Threshold Voltage (Vgs(th)@Id)
- 1.4V@250μA
- Input Capacitance(Ciss)
- 1.05nF
- Junction Temperature(Max)
- 150℃
- Number
- 1 N-channel
- Output Capacitance(Coss)
- 66pF
- Pd - Power Dissipation
- 350mW
- RDS(on)
- 52mΩ@2.5V
- Reverse Transfer Capacitance (Crss@Vds)
- 77pF
- Thermal Resistance(Junction to Ambient)
- 357℃/W
- Type
- N-Channel
- Vgs
- ±12V
- Voltage - Forward(Vf)
- 1V
Order codes
1- CJ3400LCSC C19019
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | G | Input |
| 2 | S | Passive |
| 3 | D | Passive |
Open-source boards using it
All 6- 2 layers5.2 × 66.9 mm
Xmas Ornament-2024
BornaBiro/Xmas-Ornament-2024
Issues is that STM32 MCU is missing it's GND.
56 parts1 - 2 layers88.9 × 50.8 mm
Insert Coin Business Card
PowerPlane/insert-coin
The "Insert Coin" cards are PCB-as-business-card builds where the coin cell is the user interaction: slide it into the holder and the card boots, blinks, listens, taps NFC, then sleeps.
44 parts1 - 4 layers75 × 83 mm
Ember pilot version
IITB-Rocket-Team-Avionics/Ember
Experimental Flight Computer with potential mitigations of previous issues faced by FLYTE and a testbed for new systems.
65 parts4MIT - 2 layers55.8 × 90.5 mm
Ember RF v0
IITB-Rocket-Team-Avionics/Ember
Experimental Flight Computer with potential mitigations of previous issues faced by FLYTE and a testbed for new systems.
46 parts4MIT - 2 layers75 × 99.5 mm
Ember v0.2
IITB-Rocket-Team-Avionics/Ember
Experimental Flight Computer with potential mitigations of previous issues faced by FLYTE and a testbed for new systems.
114 parts4MIT
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<iframe src="https://pcbkit.io/embed/parts/cj/CJ3400" title="CJ3400 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cj/CJ3400.jpg" alt="CJ3400" width="1200" height="900">[](https://pcbkit.io/parts/cj/CJ3400)Questions
Is there a KiCad symbol and footprint for the CJ3400?
Yes. The symbol is Pinmap_Generic:Q_NMOS_1G_2S_3D 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 CJ3400?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the CJ3400 datasheet?
Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.
Where can I order the CJ3400?
JLCPCB lists it as part C19019, with 163,484 in stock; the sellers' links on this page open their listings.
What can replace the CJ3400?
Parts like it in the library: the AO3400 by GOODWORK, the AO3400A by UMW, the AO3400 by Guangdong Hottech and the HL3400A by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the CJ3400?
6 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
AO3400
SOT-23-55℃~+150℃ 1 N-channel 1.05nF 1.4V 1.5W 28mΩ@10V 30V 5.8A 77pF N-Channel SOT-23 MOSFETs ROHSGOODWORKMOSFETsAO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.1V 1.4W 17mΩ@10V 30V 5.8A 77pF 823pF 9.7nC@4.5V 99pF SOT-23 MOSFETs ROHSUMWMOSFETsAO3400
SOT-231 N-channel 1.45V 1.4W 28mΩ@10V 30V 5.8A 50pF 630pF 75pF 7nC@4.5V N-Channel SOT-23 MOSFETs ROHSGuangdong HottechMOSFETsHL3400A
SOT-23-55℃~+150℃ 1 N-channel 1.05nF 1.4V 30V 350mW 35mΩ@10V 5.8A 77pF 99pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsAO3400
SOT-23-55℃~+150℃ 1 N-channel 1.3W 22nC@15V 25mΩ@4.5V 30V 5.8A 55pF 630pF 71pF 900mV N-Channel SOT-23 MOSFETs ROHSFOSANMOSFETsAO3400
SOT-23-55℃~+150℃ 1 N-channel 1.05nF 1.4V 30V 350mW 40mΩ@4.5V 5.8A 77pF SOT-23 MOSFETs ROHSJSMSEMIMOSFETsIRLML6344TRPBF-HXY
SOT-23-55℃~+150℃ 1 N-channel 1.4W 28mΩ@10V 30V 5.8A 700mV 78pF 825pF SOT-23 MOSFETs ROHSHXY MOSFETMOSFETs3400
SOT23-55℃~+150℃ 1 N-channel 1.3V 1.3W 30V 36mΩ@2.5V 43pF 5.8A 507pF 9.1nC SOT23 MOSFETs ROHSHLMOSFETs