
Diodes Incorporated
A strong alternative with matching package and current, but higher forward voltage.
DFLS220L-7 is a 20V, 2A low forward voltage Schottky rectifier from Diodes Inc. in a PowerDI123 package. Finding a substitute requires matching the package and electrical ratings, with special attention to the low forward voltage for efficiency.
Higher forward voltage in substitutes increases power loss.
All candidates use the same PowerDI123 package.
No drop-in replacement is confirmed. All candidates require review, primarily for forward voltage (Vf) and diode technology differences.
Upgrade to a higher voltage part in the same DFLS family, like DFLS260Q-7, but verify forward voltage impact.
Increased power dissipation due to higher forward voltage in most alternatives.

Diodes Incorporated
A strong alternative with matching package and current, but higher forward voltage.
| Feature / factor | DFLS220L-7 | DFLS260Q-7 | DFLS240-7 | SBR3U30P1-7 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | PowerDI123 | PowerDI123 | PowerDI123 | PowerDI123 | PowerDI123 — Package matches, likely pin-compatible.; DFLS240-7: Package matches, likely pin-compatible.; SBR3U30P1-7: Package matches, likely pin-compatible.; SBR3U40P1-7: Package matches, likely pin-compatible. |
| Voltage | 20V | 60V | 40V | 30V | 60V / 40V / 30V — Higher voltage rating provides more margin.; DFLS240-7: Higher voltage rating provides more margin.; SBR3U30P1-7: Higher voltage rating provides more margin.; SBR3U40P1-7: Higher voltage rating provides more margin. |
| Current | 2.0A | 2.0A | 2.0A | 3.0A | 2.0A / 3.0A — Current rating matches target.; DFLS240-7: Current rating matches target.; SBR3U30P1-7: Higher current rating provides more margin.; SBR3U40P1-7: Higher current rating provides more margin. |
| Forward Voltage | 0.42V | 0.62V | 0.7V | - | 0.62V / 0.7V — Higher Vf increases power loss and heat.; DFLS240-7: Significantly higher Vf increases power loss and heat. |
| Technology | Schottky | - | - | SBR | SBR — Super Barrier Rectifier (SBR) may have different recovery time than target's Schottky.; SBR3U40P1-7: Super Barrier Rectifier (SBR) may have different recovery time than target's Schottky. |
Parts like DFLS260Q-7 offer the same package and current rating with a higher voltage margin. However, you must verify that your design can tolerate a higher forward voltage, which impacts efficiency and heat.