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STMicroelectronics BAR43SFILM

STMicroelectronics BAR43SFILM Schottky Diode Array

MPNBAR43SFILM
End of Life

STMicroelectronics BAR43SFILM, Schottky diode array, 30V reverse voltage, 100mA average rectified current per diode, 5ns reverse recovery time, SOT-23-3 package.

$0.38Ref. price · indicative, final on quote
STMicroelectronics BAR43SFILM datasheet (PDF)
PackagingTO-236-3, SC-59, SOT-23-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BAR43SFILM specifications
ParameterValue
MountingSurface Mount
Voltage - DC reverse (Vr)30 V
Voltage - forward (Vf) (Max) @ if1 V @ 100 mA
Current - reverse leakage @ vr500 nA @ 30 V
Current - average rectified (Io) (per diode)100mA
Operating temperature - junction150°C (Max)
SpeedSmall Signal =< 200mA (Io), Any Speed
PackageTape & Reel (TR); Cut Tape (CT)
TechnologySchottky
CaseTO-236-3, SC-59, SOT-23-3
Diode configuration1 Pair Series Connection
Reverse recovery time5 ns

Product details

Series Schottky pair for high-speed clamping and rectification

The STMicroelectronics BAR43SFILM is a Schottky diode array with a 1 Pair Series Connection configuration, rated for 30 V DC reverse voltage and 100 mA average rectified current per diode. The 5 ns reverse recovery time makes it a fit for high-frequency switching, clamping, and protection circuits where the series pair provides a common-cathode-like topology in a single SOT-23-3 package.

Forward drop and leakage — the BOM trade-offs

Reverse leakage is specified at 500 nA at 30 V, a value that climbs with junction temperature — the 150°C maximum junction rating means the leakage current can dominate the thermal budget in a confined SOT-23-3 layout if the ambient is high.

Frequently asked questions

How does BAR43SFILM compare to the BAT54 series?

Both are Schottky diodes in SOT-23 packages, but the BAR43SFILM uses a 1 Pair Series Connection configuration (two diodes in series), while the BAT54 is typically a single diode or dual common-cathode pair. The series topology in BAR43SFILM is useful for applications requiring higher reverse voltage blocking or specific clamping arrangements, whereas the BAT54 series offers different pinouts and lower forward voltage at similar current ratings.