SK101M010ST Equivalent & Substitute Parts Reference

Part Overview

The SK101M010ST is a 100 µF, 10 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This through-hole component is rated for 2000 hours at 85°C with an ESR of 2.52 Ohm and operates across the temperature range of -40°C to 85°C. The part maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified for applications requiring functional replacement due to inventory availability, procurement lead times, or design flexibility across qualified manufacturers.

Substiute Parts

SK101M010ST

Cornell Dubilier Electronics (CDE)In Stock: 1226SK101M010ST Datasheet

Current PartRFQ

ECA-1AM101

Panasonic Electronic ComponentsIn Stock: 32056ECA-1AM101 Datasheet

DirectRFQ

ECA-1AM101B

Panasonic Electronic ComponentsIn Stock: 4906ECA-1AM101B Datasheet

DirectRFQ

ECA-1AM101I

Panasonic Electronic ComponentsIn Stock: 3010ECA-1AM101I Datasheet

DirectRFQ

UVR1A101MDD

NichiconIn Stock: 36262UVR1A101MDD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SK101M010ST is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Equivalence Criteria:

• Capacitance: 100 µF (exact match required)
• Voltage Rating: 10 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Lifetime: 2000 Hrs @ 85°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Can (exact match required)
• Polarization: Polar (required for electrolytic capacitors)

Secondary Compatibility Parameters:

• Size / Dimension: 0.197" Dia (5.00mm) (exact match required)
• RoHS Compliance: ROHS3 Compliant (required for regulatory alignment)

Substitute parts are grouped by manufacturer and packaging configuration. Variations in lead spacing and height are documented where they occur, as these affect PCB layout compatibility. ESR and ripple current specifications are provided where available but do not disqualify substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

Active Status Parts (Preferred for New Designs):

ECA-1AM101, ECA-1AM101B, and ECA-1AM101I from Panasonic Electronic Components maintain Active product status and are recommended for new designs and long-term procurement strategies. All three variants meet the electrical equivalence criteria and carry ROHS3 compliance certification.

Lead Spacing Considerations:

The ECA-1AM101 and UVR1A101MDD maintain the 0.079" (2.00mm) lead spacing of the SK101M010ST, ensuring direct PCB layout compatibility. The ECA-1AM101B features 0.197" (5.00mm) lead spacing and the ECA-1AM101I features 0.098" (2.50mm) lead spacing; these variants require PCB layout verification before substitution.

Height Variation:

The SK101M010ST has a maximum seated height of 0.512" (13.00mm). Panasonic variants (ECA-1AM101, ECA-1AM101B, ECA-1AM101I) are 0.472" (12.00mm) and the Nichicon UVR1A101MDD is 0.492" (12.50mm). These dimensional differences must be evaluated for mechanical clearance in the target application.

Packaging Configuration:

The SK101M010ST is supplied in Bulk packaging. ECA-1AM101 is available in Bulk; ECA-1AM101B and ECA-1AM101I are supplied in Tape & Box (TB) configuration. Packaging selection depends on procurement volume and assembly process requirements.

Obsolete Status:

UVR1A101MDD from Nichicon carries Obsolete product status. While electrically equivalent and currently in stock, this part is not recommended for new designs due to long-term availability risk.

Frequently Asked Questions (FAQ)

Q: Can ECA-1AM101B be used as a direct replacement for SK101M010ST?

A: ECA-1AM101B meets all electrical equivalence criteria (100 µF, 10 V, ±20%, 2000 Hrs @ 85°C, ROHS3 compliant). However, the lead spacing differs: ECA-1AM101B has 0.197" (5.00mm) spacing versus SK101M010ST's 0.079" (2.00mm). PCB layout compatibility must be verified before substitution.

Q: What is the difference between ECA-1AM101, ECA-1AM101B, and ECA-1AM101I?

A: All three Panasonic variants are electrically identical (100 µF, 10 V, ±20%, 2000 Hrs @ 85°C). The differences are: ECA-1AM101 has 0.079" (2.00mm) lead spacing in Bulk packaging; ECA-1AM101B has 0.197" (5.00mm) lead spacing in Tape & Box packaging; ECA-1AM101I has 0.098" (2.50mm) lead spacing in Tape & Box packaging. Selection depends on PCB layout requirements and procurement packaging needs.

Q: Is UVR1A101MDD suitable for new product designs?

A: UVR1A101MDD is electrically equivalent to SK101M010ST and ROHS3 compliant. However, it carries Obsolete product status. For new designs, Active status parts (ECA-1AM101 series from Panasonic) are recommended to ensure long-term availability and supply chain stability.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution is determined by exact equivalence in: capacitance (100 µF), voltage rating (10 V), tolerance (±20%), operating temperature range (-40°C to 85°C), lifetime rating (2000 Hrs @ 85°C), mounting type (Through Hole), package type (Radial, Can), and physical diameter (0.197" / 5.00mm). Lead spacing and height variations require PCB layout verification.

Q: Does the ESR specification affect substitution eligibility?

A: ESR is not a substitution-disqualifying parameter. The SK101M010ST specifies 2.52 Ohm ESR; substitute parts do not provide ESR data in the available specifications. Electrical equivalence is maintained through capacitance, voltage, tolerance, and lifetime ratings. Applications with specific ESR requirements should be evaluated separately.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SK101M010ST and all listed substitute parts (ECA-1AM101, ECA-1AM101B, ECA-1AM101I, UVR1A101MDD) are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.