The BAT54SW is a schottky Diode made by Nexperia in a SOT-323 package with 3 pins. 1 Pair Series Connection 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-323 Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:BAT54SW, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 2,845 are in stock at JLCPCB (part C78606). 44 open-source boards in 38 repositories on GitHub use it.
| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| reverse voltage VR | Per diode; Tamb = 25 °C | max 30 V | 1 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 100 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 800 mV | 1 |
| reverse current IR | Per diode; Tamb = 25 °C; VR = 25 V; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 2 A | 1 |
| reverse voltage VR | Per diode | max 30 V | 3 |
| forward current IF | Per diode | max 200 mA | 3 |
| repetitive peak forward current IFRM | Per diode; tp ≤ 1 s; δ ≤ 0.5 | max 300 mA | 3 |
| non-repetitive peak forward current IFSM | Per diode; square wave; tp < 10 ms; Tj = 25 °C before surge | max 600 mA | 3 |
| total power dissipation Ptot | Per device; one diode loaded; Tamb ≤ 25 °C; mounted on FR4 PCB, single-sided copper, tin-plated and standard footprint | max 200 mW | 3 |
| junction temperature Tj | Per device; one diode loaded | max 150 C | 3 |
| ambient temperature Tamb | Per device; one diode loaded | min -55 · max 150 C | 3 |
| storage temperature Tstg | Per device; one diode loaded | min -65 · max 150 C | 3 |
| thermal resistance from junction to ambient Rth(j-a) | SOT323; per device; one diode loaded; in free air; mounted on FR4 PCB, single-sided copper, tin-plated and standard footprint | max 625 K/W | 3 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 0.1 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 240 mV | 4 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 1 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 320 mV | 4 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 10 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 400 mV | 4 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 30 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 500 mV | 4 |
| forward voltage VF | Per diode; Tamb = 25 °C; IF = 100 mA; pulse test: tp ≤ 300 us; δ ≤ 0.02 | max 800 mV | 4 |
| diode capacitance Cd | Per diode; Tamb = 25 °C; f = 1 MHz; VR = 1 V | max 10 pF | 4 |
| reverse recovery time trr | Per diode; Tamb = 25 °C; switched from IF = 10 mA to IR = 10 mA; RL = 100 Ω; measured at IR = 1 mA | max 5 ns | 4 |
| Pin | Name | Type |
|---|---|---|
| 1 | A | Passive |
| 2 | K | Passive |
| 3 | COM | Passive |
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<iframe src="https://pcbkit.io/embed/parts/nexperia/BAT54SW" title="BAT54SW in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nexperia/BAT54SW.jpg" alt="BAT54SW" width="1200" height="900">[](https://pcbkit.io/parts/nexperia/BAT54SW)Yes. The symbol is Diode:BAT54SW and the footprint Package_TO_SOT_SMD:SOT-323_SC-70, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOT-323, with 3 pins. Its footprint is drawn on this page.
Nexperia publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C78606, with 2,845 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the BAT54SW by hongjiacheng, the BAT54SW by onsemi, the LBAT54CWT1G by Leshan Radio (LRC) and the LBAT54SWT1G by Leshan Radio (LRC). Check their datasheets: a part that fits the footprint may still differ in its ratings.
44 boards in 38 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
