Best Alternatives to RST1UF50V017

Package: SMD, 4mm x 5.4mmKNSCHAAluminum Electrolytic CapacitorsCapacitance: 1 uFRated Voltage: 50 VTolerance: ±20%Operating Temperature: -40°C to +105°CRipple Current: 7 mA @ 120Hz, 105°C

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.

AI replacement insight

Package riskmedium

Package dimensions match but land patterns must be verified across manufacturers.

Electrical risklow

Key specs match or are improved. Secondary specs like ESR should be checked.

Can it be replaced directly?

Direct replacement for RST1UF50V017 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is CK1H010M-CRC54, which matches all primary parameters. For an upgrade, RVT2A1R0M0405 offers a higher voltage rating.

Main risk

The main risk is physical incompatibility. While several parts have the same 4x5.4mm dimensions, slight variations in land patterns can exist.

Recommended alternatives

3
CK1H010M-CRC54 package
CK1H010M-CRC54

Fujicon Elec

Needs validationlow risk

Strong match with identical key electrical parameters and package size.

View details

Alternative comparison matrix

Feature / factorRST1UF50V017CK1H010M-CRC54RVT2A1R0M0405RVT1H1R0M0405Compatibility / risk
PackageSMD, 4mm x 5.4mmSMD, 4mm x 5.4mm4mm x 5.4mm4mm x 5.4mmSMD, 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.
Capacitance1.0e-06 F1.0e-06 F1.0e-06 F1.0e-06 F1.0e-06 F — matched; RVT2A1R0M0405: matched; RVT1H1R0M0405: matched
Voltage50.0 V50.0 V100.0 V50.0 V50.0 V / 100.0 V — matched; RVT2A1R0M0405: Higher voltage rating provides more design margin.; RVT1H1R0M0405: matched
Tolerance20.0 %20.0 %--20.0 % — matched
Load Life2000 hours2000 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.

Application & sourcing insights

Questions & answers

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.