2 layers100 × 150 mm
I2c moist sensor pannel
Miceuz/i2c-moisture-sensor
I2C based soil moisture sensor
140 parts258Apache-2.0
Overview
The BAT54 is a schottky Diode made by FOSAN in a SOT-23 package with 3 pins. 200mA 2uA@25V 30V 800mV@100mA Independent SOT-23 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (dk_Diodes-Rectifiers-Single:BAT54_Obsolete, from Digikey) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 65,103 are in stock at JLCPCB (part C2926171). 156 open-source boards in 116 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
9- Reverse voltage, most
- 30 V · DC reverse voltage, max · p. 1
- Forward current, most
- 200 mA · Forward work current, max · p. 1
- Junction, hottest
- 125 °C · Junction temperature, max · p. 1
- Junction to air (SOT-23)
- 500 K/W · Junction to ambient thermal resistance · p. 1
- Forward voltage
- 240 mV · Forward voltage, max at IF = 0.1 mA · p. 1
- Forward voltage
- 320 mV · Forward voltage, max at IF = 1 mA · p. 1
- Forward voltage
- 400 mV · Forward voltage, max at IF = 10 mA · p. 1
- Forward voltage
- 500 mV · Forward voltage, max at IF = 30 mA · p. 1
- Forward voltage
- 800 mV · Forward voltage, max at IF = 100 mA · p. 1
What it is and has
2- Package
- SOT-23 · p. 1
- Device marking
- KL1 · p. 1
Specifications
18| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Peak Reverse Voltage 反向峰值电压 VRRM | max 30 V | 1 | |
| Reverse Work Voltage 反向工作电压 VRWM | max 30 V | 1 | |
| DC Reverse Voltage 直流反向电压 VR | max 30 V | 1 | |
| Forward Work Current 正向工作电流 IF(IO) | max 200 mA | 1 | |
| Peak Forward Current 正向峰值电流 IFM | max 600 mA | 1 | |
| Power dissipation 耗散功率 PD | Ta=25℃ | max 200 mW | 1 |
| Thermal Resistance J-A 结到环境热阻 RθJA | SOT-23 | max 500 ℃/W | 1 |
| Junction and Storage Temperature 结温和储藏温度 TJ | Junction temperature | max 125 ℃ | 1 |
| Junction and Storage Temperature 结温和储藏温度 Tstg | Storage temperature | min -55 · max 150 ℃ | 1 |
| Reverse Breakdown Voltage 反向击穿电压 V(BR) | TA=25℃; IR=100uA | min 30 V | 1 |
| Reverse Leakage Current 反向漏电流 IR | TA=25℃; VR=25V | max 2 uA | 1 |
| Forward Voltage VF | TA=25℃; IF=0.1mA | max 0.24 V | 1 |
| Forward Voltage VF | TA=25℃; IF=1mA | max 0.32 V | 1 |
| Forward Voltage VF | TA=25℃; IF=10mA | max 0.4 V | 1 |
| Forward Voltage VF | TA=25℃; IF=30mA | max 0.5 V | 1 |
| Forward Voltage VF | TA=25℃; IF=100mA | max 0.8 V | 1 |
| Diode Capacitance 二极管电容 CD | TA=25℃; VR=1V, f=1MHz | max 10 pF | 1 |
| Reverse Recovery Time 反向恢复时间 Trr | TA=25℃ | max 5 nS | 1 |
Parameters
9- Current - Rectified
- 200mA
- Diode Configuration
- Standalone
- Junction Temperature(Max)
- 125℃
- Power Dissipation
- 200mW
- Reverse Leakage Current (Ir)
- 2uA@25V
- Thermal Resistance(Junction to Ambient)
- 500℃/W
- Voltage - DC Reverse(Vr)
- 30V
- Voltage - Forward(Vf)
- 240mV
- Voltage - Forward(Vf@If)
- 800mV@100mA
Order codes
1- BAT54LCSC C2926171
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | — | Passive |
| 2 | — | Not connected |
| 3 | — | Passive |
Open-source boards using it
All 156- 4 layers150 × 90 mm
Misrc v2.5-rounded
Stefan-Olt/MISRC
MISRC Is a multi channel RF capture device for FM RF, S-Video, CVBS RAW capture and anything else, but intended and supported for the decode family of projects vhs-decode, ld-decode, hifi-decode.
328 parts236CC-BY-4.0 - 4 layers93.2 × 62.4 mm
Compute module
magkopian/raspberry-pi-compute-module-base-board
Base board for the Raspberry Pi Compute Module
66 parts214GPL-3.0 - 2 layers38.2 × 37.9 mm
NixieSupply5vto160vDCMBoost
drkmsmithjr/NixiePowerSupply
170v Nixie Tube Power Supply from 5v Supply
47 parts98MIT - 2 layers100 × 149.5 mm
Rs485-moist sensor pannel
Miceuz/rs485-moist-sensor
Digital (RS485 - based) soil moisture and temperature sensor
170 parts74Apache-2.0 - 4 layers92.9 × 45 mm
Post box usb
google/myelin-acorn-electron-hardware
Phillip Pearson's retro hardware projects for the Acorn Electron
116 parts59Apache-2.0 - 8 layers34 × 34 mm
OpenDrone AIO FC F405 HW
phonght32/OpenDrone_HW_AIO_FC_F405
OpenDrone Project - AIO Brushless FC F405.
211 parts53MIT - 2 layers160 × 100 mm
RedPitaya Lockbox
TU-Darmstadt-APQ/RedPitaya-Lockbox
Digital controller for laser frequency stabilization based on the RedPitaya STEMlab 125-14 board
110 parts40
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<iframe src="https://pcbkit.io/embed/parts/fosan/BAT54" title="BAT54 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/fosan/BAT54.jpg" alt="BAT54" width="1200" height="900">[](https://pcbkit.io/parts/fosan/BAT54)Questions
Is there a KiCad symbol and footprint for the BAT54?
Yes. The symbol is dk_Diodes-Rectifiers-Single:BAT54_Obsolete 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 BAT54?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the BAT54 datasheet?
FOSAN publishes it: the Datasheet link on this page opens it.
Where can I order the BAT54?
JLCPCB lists it as part C2926171, with 65,103 in stock; the sellers' links on this page open their listings.
What can replace the BAT54?
Parts like it in the library: the BAT54S by MDD, the BAT54S by hongjiacheng, the BAT54S by GOODWORK and the BAT54S by SEP. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BAT54?
156 boards in 116 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
BAT54S
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