Is there a pin-compatible replacement for BAT48JFILM?

Yes, several Schottky diodes like SD103AWS-TP and SK16D3 use the same 2-pin SOD-323 package. However, pin compatibility does not guarantee electrical performance, so datasheet review is essential.

What risks should I check before replacing BAT48JFILM?

Key risks include higher forward voltage (Vf) causing increased power loss, higher reverse leakage current (Ir) affecting efficiency, and different junction capacitance (Cj) impacting high-frequency performance.

BAT48JFILM Alternatives, Datasheet & Cross Reference | FUXINSEMI

BAT48JFILM is a 40V, 350mA Schottky diode in a compact SOD-323 package, valued for its low forward voltage and fast switching. Finding a replacement requires careful comparison of electrical characteristics beyond just voltage and current.

AI replacement insight

Electrical riskmedium

Candidates have different Vf, Ir, and Cj which can impact performance.

Package risklow

All suggested candidates use the same SOD-323 package.

Sourcing risklow

Multiple alternatives are available from various manufacturers.

Can it be replaced directly?

No perfect drop-in replacement is identified; all candidates have trade-offs. SD103AWS-TP is the closest functional match but requires review of secondary parameters.

Best replacement path

Start with candidates matching the 40V/350mA rating like SD103AWS-TP, then evaluate higher-rated parts like SK16D3 if the application can tolerate slightly worse efficiency.

Main risk

The primary risk is degraded circuit efficiency and performance due to candidates having higher forward voltage, reverse leakage, and/or junction capacitance than the target.

Recommended alternatives

A functional match in the same package with identical voltage/current ratings, but has weaker secondary electrical characteristics.

View details

Alternative comparison matrix

Feature / factor	BAT48JFILM	SD103AWS-TP	SK16D3	Compatibility / risk
Package	SOD-323	SOD-323	SOD-323	SOD-323 — Same package ensures form and fit compatibility.; SK16D3: Same package ensures form and fit compatibility.
Voltage	40V	40V	60V	40V / 60V — Identical reverse voltage rating.; SK16D3: Higher voltage rating provides more design margin.
Current	350mA	350mA	1.0A	350mA / 1.0A — Identical forward current rating.; SK16D3: Higher current rating provides more design margin.
Forward Voltage	0.4V @ 10mA	0.6V @ 200mA	0.7V @ 1A	0.6V @ 200mA / 0.7V @ 1A — Higher Vf, may increase power loss.; SK16D3: Significantly higher Vf, will increase power dissipation.
Reverse Leakage	2µA @ 10V	5.0µA @ 30V	100µA @ 60V	5.0µA @ 30V / 100µA @ 60V — Higher leakage current.; SK16D3: Significantly higher leakage current will reduce efficiency.
Capacitance	18pF	50pF	-	50pF — Higher capacitance may affect high-frequency switching.

Application & sourcing insights

Questions & answers

SD103AWS-TP is a functional alternative with the same 40V/350mA rating and SOD-323 package, but review its slightly higher forward voltage and capacitance.