
Overview
The BAT54AW is a schottky Diode made by Nexperia in a SOT-323(SC-70) package with 3 pins. 1 Pair Common Anode 100mA 2uA@25V 30V 600mA 800mV@100mA SOT-323(SC-70) Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:BAT54AW, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 720 are in stock at JLCPCB (part C78261).
Symbol
Footprint
From the datasheet
11- Reverse voltage, most
- 30 V · Per diode, max reverse voltage · p. 3
- Forward current, most
- 200 mA · Per diode, max continuous forward current · p. 3
- Junction, hottest
- 150 °C · Max junction temperature · p. 3
- Works from
- -55 °C · Tamb, min ambient temperature · p. 3
- Works up to
- 150 °C · Tamb, max ambient temperature · p. 3
- Junction to air (SOT323)
- 625 K/W · Max in free air, one diode loaded, standard footprint on single-sided FR4 PCB · p. 3
- Forward voltage
- 240 mV · Max at IF = 0.1 mA, Tamb = 25 °C, pulse test · p. 4
- Forward voltage
- 320 mV · Max at IF = 1 mA, Tamb = 25 °C, pulse test · p. 4
- Forward voltage
- 400 mV · Max at IF = 10 mA, Tamb = 25 °C, pulse test · p. 4
- Forward voltage
- 500 mV · Max at IF = 30 mA, Tamb = 25 °C, pulse test · p. 4
- Forward voltage
- 800 mV · Max at IF = 100 mA, Tamb = 25 °C, pulse test · p. 4
What it is and has
5- Protection
- Integrated guard ring for stress protection · p. 1
- Forward voltage
- Low · p. 1
- Capacitance
- Low · p. 1
- Qualification
- AEC-Q101 qualified · p. 1
- Package
- SC-70, SOT323, plastic surface-mounted package; 3 leads · p. 2
Specifications
19| 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; FR4 PCB, single-sided copper, tin-plated, 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; FR4 PCB, single-sided copper, tin-plated, 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 |
Pins, by the datasheet
3- 1 cathode (diode 1)
- Cathode of diode 1. · p. 2
- 2 cathode (diode 2)
- Cathode of diode 2. · p. 2
- 3 common anode
- Common anode. · p. 2
Ordering codes, by the datasheet
1- BAT54AW
- SOT323 (SC-70) · Two diodes with common anode · p. 2
Parameters
10- Current - Rectified
- 200mA
- Diode Configuration
- 1 Pair Common Anode
- Junction Temperature(Max)
- 150℃
- Non-Repetitive Peak Forward Surge Current
- 600mA
- Operating Temperature
- -55℃~+150℃
- Reverse Leakage Current (Ir)
- 2uA@25V
- Thermal Resistance(Junction to Ambient)
- 625℃/W
- Voltage - DC Reverse(Vr)
- 30V
- Voltage - Forward(Vf)
- 240mV
- Voltage - Forward(Vf@If)
- 800mV@100mA
Order codes
1- BAT54AW,115LCSC C78261
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | — | Passive |
| 2 | — | Passive |
| 3 | — | Passive |
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Is there a KiCad symbol and footprint for the BAT54AW?
Yes. The symbol is Diode:BAT54AW 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.
What package is the BAT54AW?
SOT-323(SC-70), with 3 pins. Its footprint is drawn on this page.
Where is the BAT54AW datasheet?
Nexperia publishes it: the Datasheet link on this page opens it.
Where can I order the BAT54AW?
JLCPCB lists it as part C78261, with 720 in stock; the sellers' links on this page open their listings.
What can replace the BAT54AW?
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.
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