

Overview
The BAT54CL is a schottky Diode made by onsemi in a SOT-23 package with 3 pins. -55℃~+125℃ 1 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:BAT54C, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 153,014 are in stock at JLCPCB (part C14308). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
10- Reverse voltage, most
- 30 V · maximum reverse voltage · p. 1
- Forward current, most
- 200 mA · maximum continuous forward current · p. 1
- Junction, hottest
- 125 °C · maximum junction temperature · p. 1
- Junction to air (SOT−23)
- 508 K/W · junction-to-ambient, FR−4 at minimum pad · p. 1
- Junction to air (SOT−23)
- 311 K/W · junction-to-ambient, FR−4 at 1.0 x 1.0 inch pad · p. 1
- Forward voltage
- 220 mV · typical at IF = 0.1 mAdc, TA = 25°C, each diode · p. 2
- Forward voltage
- 290 mV · typical at IF = 1.0 mAdc, TA = 25°C, each diode · p. 2
- Forward voltage
- 350 mV · typical at IF = 10 mAdc, TA = 25°C, each diode · p. 2
- Forward voltage
- 410 mV · typical at IF = 30 mAdc, TA = 25°C, each diode · p. 2
- Forward voltage
- 520 mV · typical at IF = 100 mAdc, TA = 25°C, each diode · p. 2
What it is and has
5- Configuration
- Dual common cathode · p. 1
- Diode technology
- Schottky barrier · p. 1
- Switching
- Extremely fast switching speed · p. 1
- Forward voltage
- 0.35 V typical at IF = 10 mAdc · p. 1
- Qualification
- AEC Qualified and PPAP Capable · p. 1
Specifications
19| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Reverse Voltage VR | TJ = 125C | max 30 V | 1 |
| Forward Power Dissipation PF | TA = 25C | max 225 mW | 1 |
| Derate above 25C PF | Forward Power Dissipation | max 1.8 mW/C | 1 |
| Thermal Resistance (Note 1) RqJA | SOT−23; FR−4 @ Minimum Pad. | max 508 C/W | 1 |
| Junction-to-Ambient (Note 2) RqJA | SOT−23; FR−4 @ 1.0 x 1.0 inch Pad. | max 311 C/W | 1 |
| Forward Current (DC) IF | TJ = 125C | max 200 mA | 1 |
| Non−Repetitive Peak Forward Current IFSM | tp < 10 msec; TJ = 125C | max 600 mA | 1 |
| Repetitive Peak Forward Current IFRM | Pulse Wave = 1 sec, Duty Cycle = 66%; TJ = 125C | max 300 mA | 1 |
| Junction Temperature TJ | min -55 · max 125 C | 1 | |
| Storage Temperature Range Tstg | min -55 · max 150 C | 1 | |
| Reverse Breakdown Voltage V(BR)R | IR = 10 mA; TA = 25C; each diode | min 30 V | 2 |
| Total Capacitance CT | VR = 1.0 V, f = 1.0 MHz; TA = 25C; each diode | typ 7.6 · max 10 pF | 2 |
| Reverse Leakage IR | VR = 25 V; TA = 25C; each diode | typ 0.5 · max 2 mA | 2 |
| Forward Voltage VF | IF = 0.1 mAdc; TA = 25C; each diode | typ 0.22 · max 0.24 V | 2 |
| Forward Voltage VF | IF = 30 mAdc; TA = 25C; each diode | typ 0.41 · max 0.5 V | 2 |
| Forward Voltage VF | IF = 100 mAdc; TA = 25C; each diode | typ 0.52 · max 0.8 V | 2 |
| Reverse Recovery Time trr | IF = IR = 10 mAdc, IR(REC) = 1.0 mAdc, Figure 1; TA = 25C; each diode | max 5 ns | 2 |
| Forward Voltage VF | IF = 1.0 mAdc; TA = 25C; each diode | typ 0.29 · max 0.32 V | 2 |
| Forward Voltage VF | IF = 10 mAdc; TA = 25C; each diode | typ 0.35 · max 0.4 V | 2 |
Pins, by the datasheet
3- 1 ANODE
- Anode of the first diode. · p. 4
- 2 ANODE
- Anode of the second diode. · p. 4
- 3 CATHODE
- Common cathode of both diodes. · p. 4
Ordering codes, by the datasheet
3- BAT54CLT1G
- SOT−23 (Pb−Free) · 3,000 / Tape & Reel · p. 1
- SBAT54CLT1G
- SOT−23 (Pb−Free) · S prefix for automotive and other applications requiring unique site and control change requirements; 3,000 / Tape & Reel · p. 1
- BAT54CLT3G
- SOT−23 (Pb−Free) · 10,000 / Tape & Reel · p. 1
Parameters
10- Current - Rectified
- 200mA
- Diode Configuration
- 1 Pair Common Cathode
- Junction Temperature(Max)
- 125℃
- Non-Repetitive Peak Forward Surge Current
- 600mA
- Operating Junction Temperature Range
- -55℃~+125℃
- Reverse Leakage Current (Ir)
- 2uA@25V
- Thermal Resistance(Junction to Ambient)
- 508℃/W
- Voltage - DC Reverse(Vr)
- 30V
- Voltage - Forward(Vf)
- 220mV
- Voltage - Forward(Vf@If)
- 800mV@100mA
Order codes
2- BAT54CLT1GLCSC C14308
- BAT54CLT3GLCSC C232532
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | — | Passive |
| 2 | — | Passive |
| 3 | — | Passive |
Open-source boards using it
All 2- 4 layers82.5 × 81.5 mm

- 4 layers35.2 × 68 mm

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Is there a KiCad symbol and footprint for the BAT54CL?
Yes. The symbol is Diode:BAT54C 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 BAT54CL?
SOT-23, with 3 pins. Its footprint is drawn on this page.
Where is the BAT54CL datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the BAT54CL?
JLCPCB lists it as part C14308, with 153,014 in stock; the sellers' links on this page open their listings.
What can replace the BAT54CL?
Parts like it in the library: the BAT54S by MDD, the BAT54S by hongjiacheng, the BAT54S by JSMSEMI and the BAT54S,215 by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BAT54CL?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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