
Diodes Incorporated
An AEC-Q101 automotive-qualified version of the target in the same package with identical electrical ratings.
The 1N4148W-13-F from Diodes Inc. is a widely used fast switching diode in a SOD123 package, rated for 100V and 300mA. It is ideal for general-purpose high-speed switching applications.
Low if key parameters (V, I, tRR) are matched or exceeded.
Many alternatives exist in the same SOD123 package.
This is a common diode type with many cross-vendor options.
The 1N4148WQ-7-F is a direct upgrade. The BAV16W-7-F is a strong functional match but should be verified in-circuit due to being from a different part family.
Upgrade to the AEC-Q101 qualified 1N4148WQ-7-F for higher reliability, or consider the BAV16W-7-F as a functionally similar alternative.
The main risk is selecting a part with a lower voltage rating or a significantly slower reverse recovery time, which could lead to device failure.

Diodes Incorporated
An AEC-Q101 automotive-qualified version of the target in the same package with identical electrical ratings.
| Feature / factor | 1N4148W-13-F | 1N4148WQ-7-F | BAV16W-7-F | 1N4448W-7-F | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD123 | SOD123 | SOD123 | SOD123 | SOD123 — Package matches, enabling drop-in replacement.; BAV16W-7-F: Package matches, enabling form-fit compatibility.; 1N4448W-7-F: Package matches, enabling form-fit compatibility. |
| Application | Commercial | AEC-Q101 | - | - | AEC-Q101 — Automotive qualification offers higher reliability. |
| Voltage | 100V | 100V | 100V | 75V | 100V / 75V — Peak reverse voltage matches target.; BAV16W-7-F: Peak reverse voltage matches target.; 1N4448W-7-F: Lower reverse voltage rating is a critical downgrade. |
| Trr | 4ns | 4ns | 4ns | 4ns | 4ns — Reverse recovery time matches, suitable for fast switching.; BAV16W-7-F: Reverse recovery time matches, suitable for fast switching.; 1N4448W-7-F: Reverse recovery time matches. |
| Current | 300mA | - | 300mA | 500mA | 300mA / 500mA — Forward continuous current matches target.; 1N4448W-7-F: Higher forward current rating provides more margin. |
The 1N4148WQ-7-F is an automotive-grade upgrade from the same manufacturer with identical electrical specs. For a similar commercial-grade part, the BAV16W-7-F is a strong candidate with matching key parameters.