105SML050MD4

Part Overview

The 105SML050MD4 is a 1 µF, 50 V aluminum electrolytic capacitor manufactured by Cornell Dubilier/Illinois Capacitor in the SML series. This surface mount component is rated for general purpose applications with a 2000-hour lifespan at 85°C and an operating temperature range of -40°C to 85°C. Finding alternative models becomes necessary when the primary part is unavailable, when specific performance characteristics better suit application requirements, or when supply chain constraints require qualified substitutes.

Substiute Parts

105SML050MD4

Cornell Dubilier / Illinois CapacitorIn Stock: 1145105SML050MD4 Datasheet

Current PartRFQ

MAL215371108E3

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 5984MAL215371108E3 Datasheet

UpgradeRFQ

EDK105M050A9BAA

KEMETIn Stock: 6147EDK105M050A9BAA Datasheet

Parametric EquivalentRFQ

UWJ1H010MCL1GB

NichiconIn Stock: 2054UWJ1H010MCL1GB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 105SML050MD4 is determined by matching the following critical electrical and mechanical parameters: capacitance (1 µF), voltage rating (50 V), tolerance (±20%), physical case size (0.157" diameter), height (5.50mm maximum), land size (0.169" x 0.169"), and surface mount package type. All substitute parts must maintain identical mounting compatibility and board-level footprint specifications. The substitutes identified in this reference meet these core requirements while offering variations in ESR characteristics, thermal lifetime ratings, and operating temperature ranges that may provide advantages for specific application environments.

Parameter Comparison

Engineering Selection Recommendations

MAL215371108E3 (Vishay Beyschlag): This upgrade substitute offers superior ESR characteristics (12 Ohm @ 100kHz) compared to the original part and extends operating temperature range to -55°C ~ 105°C with thermal lifetime extended to 2000 hours at 105°C. ROHS3 compliance and REACH unaffected status match the original specification. Height is 0.20mm shorter (5.30mm), which may provide design flexibility in space-constrained layouts.

EDK105M050A9BAA (KEMET): This parametric equivalent maintains identical electrical and thermal specifications as the original 105SML050MD4, including 2000-hour lifespan at 85°C and -40°C to 85°C operating temperature range. ROHS3 compliance and REACH unaffected status are met. This part functions as a direct functional replacement with matching footprint and performance envelope.

UWJ1H010MCL1GB (Nichicon): This parametric equivalent carries identical capacitance, voltage, tolerance, and case dimensions as the original part. Operating parameters match the 105SML050MD4 specification. However, product status is listed as Obsolete, which may affect long-term availability and supply chain reliability. REACH status indicates this part is affected, which differs from the original specification. New designs should avoid this substitute due to obsolescence status.

Frequently Asked Questions (FAQ)

Q: Are these substitutes electrically interchangeable with the 105SML050MD4?

A: Yes. All listed substitutes maintain identical capacitance (1 µF), voltage rating (50 V), tolerance (±20%), and surface mount package specifications. They share identical land sizes (0.169" x 0.169") and case diameter (0.157"), ensuring direct PCB footprint compatibility and electrical functionality within the rated parameters.

Q: What is the difference between an upgrade substitute and a parametric equivalent?

A: The MAL215371108E3 is classified as an upgrade substitute because it offers enhanced performance characteristics, specifically lower ESR and extended thermal operating range (-55°C to 105°C), while maintaining all original functional specifications. The EDK105M050A9BAA and UWJ1H010MCL1GB are parametric equivalents that match the original specifications without performance enhancements.

Q: Can the Vishay MAL215371108E3 be directly substituted in designs rated for the 105SML050MD4?

A: Yes. The MAL215371108E3 is fully compatible. The 0.20mm height reduction (5.30mm versus 5.50mm) is within standard component tolerance and presents no mechanical interference issues. The lower ESR and extended thermal rating make it suitable for higher-performance applications.

Q: Why is the Nichicon UWJ1H010MCL1GB listed as a substitute if it is obsolete?

A: The UWJ1H010MCL1GB is included because it meets the core electrical and mechanical substitution criteria for the 105SML050MD4. However, its obsolete product status makes it unsuitable for new designs or long-term production. Existing inventory may support legacy product support, but the EDK105M050A9BAA or MAL215371108E3 are preferred for current and future applications.

Q: Do these substitutes require any circuit design modifications?

A: No. All substitutes operate within the same electrical and thermal specifications as the 105SML050MD4 at the application level. No circuit modifications, derate adjustments, or thermal management changes are required for direct substitution.

Q: Are all substitutes compliant with RoHS and REACH regulations?

A: All substitutes are ROHS3 compliant. The MAL215371108E3 and EDK105M050A9BAA are REACH unaffected, matching the original part status. The UWJ1H010MCL1GB carries REACH affected status, which differs from the original specification and may require regulatory assessment for your specific application.