
BAR43SFILM
STMicroelectronicsExtended
1 Pair Series Connection 100mA 1V@100mA 30V 500nA@30V 750mA SOT-23-3L Schottky Diodes ROHS
- Part id
- st/BAR43SFILM
- Category
- Schottky Diodes
- Package
- SOT-23-3L
- Pins
- 3
- In stock
- 2,214 at JLCPCB (C163328)
- Used on
- 4 open-source boards
Overview
The BAR43SFILM is a schottky Diode made by STMicroelectronics in a SOT-23-3L package with 3 pins. 1 Pair Series Connection 100mA 1V@100mA 30V 500nA@30V 750mA SOT-23-3L Schottky Diodes ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:BAT54SQ-7-F, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23-3, from KiCad's library), ready for a KiCad board. 2,214 are in stock at JLCPCB (part C163328). 4 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
7- Forward current, most
- 100 mA · Continuous forward current, max · p. 2
- Reverse voltage, most
- 30 V · Repetitive peak off-state voltage, max · p. 2
- Junction, hottest
- 150 °C · Operating junction temperature, max · p. 2
- Junction to air (SOT23-3L)
- 500 K/W · Junction to ambient, stated value; epoxy board with recommended pad layout · p. 2
- Forward voltage
- 330 mV · Forward voltage drop, max; IF = 2 mA, Tj = 25 °C · p. 2
- Forward voltage
- 450 mV · Forward voltage drop, max; IF = 15 mA, Tj = 25 °C · p. 2
- Forward voltage
- 1 V · Forward voltage drop, max; IF = 100 mA, Tj = 25 °C · p. 2
What it is and has
5- Device type
- Small signal Schottky diode · p. 1
- Conduction losses
- Very small · p. 1
- Switching losses
- Negligible · p. 1
- Forward voltage drop
- Low · p. 1
- Mounting
- Surface mount device · p. 1
Specifications
17| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Repetitive peak off-state voltage VDRM | max 30 V | 2 | |
| Continuous forward current IF(AV) | max 0.1 A | 2 | |
| Surge non repetitive forward current IFSM | tp = 10 ms sinusoidal | max 0.75 A | 2 |
| Power dissipation(1) Ptot | Tamb = 25 °C; for double diodes, total dissipation of both diodes | max 250 mW | 2 |
| Maximum Storage temperature range Tstg | min -65 · max 150 °C | 2 | |
| Maximum operating junction temperature(2) Tj | max 150 °C | 2 | |
| Maximum temperature for soldering during 10 s TL | max 260 °C | 2 | |
| Junction to ambient(1) Rth(j-a) | SOT23-3L; mounted on epoxy board with recommended pad layout | max 500 °C/W | 2 |
| Breakdown voltage VBR | Tj = 25 °C; IR = 100 uA | min 30 V | 2 |
| Reverse leakage current IR (1) | Tj = 25 °C; VR = VRRM; pulse test: tp = 5 ms, δ < 2 % | max 500 nA | 2 |
| Reverse leakage current IR (1) | Tj = 100 °C; VR = VRRM; pulse test: tp = 5 ms, δ < 2 % | max 100 uA | 2 |
| Forward voltage drop VF (2) | BAR43; Tj = 25 °C; IF = 2 mA; pulse test: tp = 380 us, δ < 2 % | min 0.26 · max 0.33 V | 2 |
| Forward voltage drop VF (2) | BAR43; Tj = 25 °C; IF = 15 mA; pulse test: tp = 380 us, δ < 2 % | max 0.45 V | 2 |
| Forward voltage drop VF (2) | ALL; Tj = 25 °C; IF =100 mA; pulse test: tp = 380 us, δ < 2 % | max 1 V | 2 |
| Junction capacitance C | Tj = 25 °C; VR = 1 V; F = 1 MHz | typ 7 pF | 3 |
| Reverse recovery time C | IF = 10 mA; IR = 10 mA; Tj = 25 °C; Irr = 1 mA; RL = 100 Ω | max 5 pF | 3 |
| Detection efficiency η | CL = 300 pF; F = 45 MHz; Tj = 25 °C; Vi = 2 V; RL = 50 Ω | min 80 ps | 3 |
Ordering codes, by the datasheet
1- BAR43SFILM
- SOT23-3L · Marking DA5; tape and reel, base quantity 3000 · p. 6
Open-source boards using it
4- 2 layers82 × 72.2 mm

- 4 layers43 × 43 mm

LED Redesign Design1
vt-aoe-nanosat-avionics/Hokie-Sat-Experimental-Board-Design
This repository gives the updated board design of the ta-expt (Or newly renamed Hokie Sat Experimental Board) with 3 different board designs.
56 parts - 2 layers

- 2 layers40.7 × 23.5 mm

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Questions
Is there a KiCad symbol and footprint for the BAR43SFILM?
Yes. The symbol is EasyEDA_Cloud:BAT54SQ-7-F and the footprint Package_TO_SOT_SMD:SOT-23-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the BAR43SFILM?
SOT-23-3L, with 3 pins. Its footprint is drawn on this page.
Where is the BAR43SFILM datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the BAR43SFILM?
JLCPCB lists it as part C163328, with 2,214 in stock; the sellers' links on this page open their listings.
What can replace the BAR43SFILM?
Parts like it in the library: the BAT54S by UMW, the BAT54S by PANJIT International, the BAT54S-E3-18 by Vishay Intertechnology and the BAR43CFILM by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the BAR43SFILM?
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.