SN220M100ST Equivalent & Substitute Parts Reference

Part Overview

The SN220M100ST is a 22 µF, 100 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier Electronics (CDE). This component is classified as Obsolete and is no longer recommended for new designs. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C. Due to its obsolete status and limited availability for future production, identifying equivalent substitute components is essential for design continuity and supply chain management.

Substiute Parts

SN220M100ST

Cornell Dubilier Electronics (CDE)In Stock: 1137SN220M100ST Datasheet

Current PartRFQ

UVP2A220MPD

NichiconIn Stock: 3754UVP2A220MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN220M100ST is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance: 22 µF (exact match required)
• Voltage Rating: 100 V (minimum requirement; higher ratings acceptable)
• Tolerance: ±20% (standard tolerance for aluminum electrolytic capacitors)
• Operating Temperature: -40°C to 85°C (minimum range requirement)
• Polarization: Bi-Polar (functional requirement)

Mechanical Parameters:

• Mounting Type: Through Hole (PCB assembly compatibility)
• Package / Case: Radial, Can (form factor and footprint)
• Lead Spacing: 0.197" (5.00mm) (PCB hole pattern compatibility)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (regulatory requirement)

The substitute part UVP2A220MPD from Nichicon meets all critical electrical and mechanical parameters. Physical dimensions differ slightly (diameter and height), but lead spacing remains identical, ensuring PCB compatibility.

Parameter Comparison

Engineering Selection Recommendations

SN220M100ST (CDE) - Obsolete Status: The SN220M100ST is classified as Obsolete and is not recommended for new designs. While current inventory of 1101 pieces is available, this part should not be selected for new product development or long-term production applications due to discontinued manufacturer support and limited future availability.

UVP2A220MPD (Nichicon) - Substitute Selection: The UVP2A220MPD is classified as "Not For New Designs" but represents the most suitable electrical and mechanical equivalent. This substitute meets all critical electrical parameters (22 µF, 100 V, ±20%, -40°C to 85°C, Bi-Polar) and maintains identical lead spacing (5.00mm) for direct PCB compatibility. The substitute offers improved reliability with 2000 hours lifetime at 85°C compared to 1000 hours for the original part. Physical dimensions are smaller (10.00mm diameter, 17.50mm height versus 13.00mm diameter, 20.00mm height), which may provide space advantages in compact designs. Both parts are ROHS3 Compliant. Current inventory of 3654 pieces is available.

Selection Criteria:

• For existing designs using SN220M100ST: Direct substitution with UVP2A220MPD is electrically and mechanically compatible
• For new designs: Consult current-production aluminum electrolytic capacitor alternatives with equivalent specifications
• PCB layout verification is required to confirm that the smaller physical dimensions of UVP2A220MPD do not create clearance conflicts

Frequently Asked Questions (FAQ)

Q: Can UVP2A220MPD be used as a direct replacement for SN220M100ST?

A: Yes. The UVP2A220MPD meets all critical electrical and mechanical parameters: 22 µF capacitance, 100 V voltage rating, ±20% tolerance, -40°C to 85°C operating range, bi-polar polarization, through-hole mounting, and identical 5.00mm lead spacing. Physical dimensions are smaller, but lead spacing remains unchanged for PCB compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are: (1) Manufacturer (CDE versus Nichicon), (2) Physical dimensions (SN220M100ST is larger: 13.00mm diameter, 20.00mm height versus UVP2A220MPD: 10.00mm diameter, 17.50mm height), (3) Lifetime rating (SN220M100ST: 1000 hours at 85°C versus UVP2A220MPD: 2000 hours at 85°C), (4) ESR specification (SN220M100ST specifies 6.03Ohm @ 120Hz; UVP2A220MPD does not provide ESR data), (5) Product status (SN220M100ST is Obsolete; UVP2A220MPD is Not For New Designs).

Q: Are there any compliance or certification concerns with substitution?

A: Both parts are ROHS3 Compliant. The UVP2A220MPD carries REACH Affected status, which may require additional documentation depending on end-use application and regional requirements. Verify compliance requirements for your specific application.

Q: Will the smaller physical dimensions of UVP2A220MPD cause PCB layout issues?

A: The smaller diameter (10.00mm versus 13.00mm) and height (17.50mm versus 20.00mm) may provide space advantages. However, verify that the reduced dimensions do not create unintended clearance or thermal management changes in your specific PCB layout. Lead spacing remains identical at 5.00mm, ensuring hole pattern compatibility.

Q: What is the ripple current rating for each part?

A: SN220M100ST specifies 180 mA @ 120 Hz. UVP2A220MPD specifies 135 mA @ 120 Hz and 270 mA @ 10 kHz. Verify that your application's ripple current requirements are met by the substitute part's specifications.

Q: Why is UVP2A220MPD marked "Not For New Designs"?

A: This designation indicates that Nichicon is transitioning away from this product line. While the part is currently available, it should not be selected for new product development. For new designs, consult current-production alternatives from active product lines.