
Fujicon Elec
Strong match with identical key electrical parameters and package size.
RST1UF50V017 is a standard 1uF 50V surface-mount aluminum electrolytic capacitor in a 4x5.4mm package. Several alternatives with matching or improved specifications are available.
Package dimensions match but land patterns must be verified across manufacturers.
Key specs match or are improved. Secondary specs like ESR should be checked.
Direct replacement for RST1UF50V017 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most direct path is CK1H010M-CRC54, which matches all primary parameters. For an upgrade, RVT2A1R0M0405 offers a higher voltage rating.
The main risk is physical incompatibility. While several parts have the same 4x5.4mm dimensions, slight variations in land patterns can exist.

Fujicon Elec
Strong match with identical key electrical parameters and package size.
| Feature / factor | RST1UF50V017 | CK1H010M-CRC54 | RVT2A1R0M0405 | RVT1H1R0M0405 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMD, 4mm x 5.4mm | SMD, 4mm x 5.4mm | 4mm x 5.4mm | 4mm x 5.4mm | SMD, 4mm x 5.4mm — Identical package dimensions.; RVT2A1R0M0405: Dimensions match, but package name differs. Verify footprint.; RVT1H1R0M0405: Dimensions match, but package name differs. Verify footprint. |
| Capacitance | 1.0e-06 F | 1.0e-06 F | 1.0e-06 F | 1.0e-06 F | 1.0e-06 F — matched; RVT2A1R0M0405: matched; RVT1H1R0M0405: matched |
| Voltage | 50.0 V | 50.0 V | 100.0 V | 50.0 V | 50.0 V / 100.0 V — matched; RVT2A1R0M0405: Higher voltage rating provides more design margin.; RVT1H1R0M0405: matched |
| Tolerance | 20.0 % | 20.0 % | - | - | 20.0 % — matched |
| Load Life | 2000 hours | 2000 hours | - | - | 2000 hours — Load life matches target. |
| Temperature | -40°C to +105°C | - | -55°C to +105°C | -55°C to +105°C | -55°C to +105°C — Wider operating temperature range.; RVT1H1R0M0405: Wider operating temperature range. |
Verified drop-in options for RST1UF50V017 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.