SS20H-20018 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SS20H-20018 is a 1.8 mH Common Mode Choke (CMC) manufactured by KEMET, designed for power line filtering applications. This through-hole mounted component operates at 2A maximum current with 110 mOhm DC resistance and is rated for 250V AC operation across a temperature range of -25°C to 120°C. The part maintains Active product status and is ROHS3 compliant.

Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative components that satisfy the electrical and mechanical parameters of the original specification.

Substiute Parts

SS20H-20018

KEMETIn Stock: 1555SS20H-20018 Datasheet

Current PartRFQ

SS11VL-22013

KEMETIn Stock: 1383SS11VL-22013 Datasheet

Parametric EquivalentRFQ

SS11VL-R22020

KEMETIn Stock: 1232SS11VL-R22020 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS20H-20018 are qualified based on the following criteria:

Mandatory Compatibility Parameters:

• Filter Type: Power Line
• Number of Lines: 2
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin
• Voltage Rating - AC: 250V
• Operating Temperature Range: -25°C ~ 120°C
• RoHS Status: ROHS3 Compliant
• Manufacturer: KEMET
• Series: SS

Allowable Variation Parameters:

• Inductance @ 1 kHz: Substitutes may vary within the SS series specifications
• Current Rating (Max): Substitutes must equal or exceed 2A
• DC Resistance (Max): Substitutes must equal or be lower than 110 mOhm

The identified substitutes (SS11VL-22013 and SS11VL-R22020) maintain all mandatory compatibility parameters while offering different inductance and current ratings within acceptable engineering tolerances for power line CMC applications.

Parameter Comparison

Engineering Selection Recommendations

SS11VL-22013 Selection Criteria: This substitute provides 1.3 mH inductance with 2.2A current capacity and 120 mOhm DCR. Selection is appropriate when lower inductance values are acceptable within circuit design parameters and higher current headroom is required. All compliance certifications (ROHS3, REACH Unaffected, EAR99) match the original specification.

SS11VL-R22020 Selection Criteria: This substitute provides 2 mH inductance with 2.2A current capacity and 120 mOhm DCR. Selection is appropriate when inductance values closer to or slightly above the original specification are required, with enhanced current margin. All compliance certifications (ROHS3, REACH Unaffected, EAR99) match the original specification.

Both substitutes maintain Active product status and identical thermal operating ranges, ensuring long-term availability and consistent performance across the specified temperature envelope.

Frequently Asked Questions (FAQ)

Q: Can SS11VL-22013 be used as a direct replacement for SS20H-20018?

A: SS11VL-22013 is a parametric equivalent within the KEMET SS series power line CMC category. It maintains identical mounting type, package configuration, voltage rating, and temperature range. The inductance is lower (1.3 mH vs. 1.8 mH) and current rating is higher (2.2A vs. 2A). Substitution is valid when circuit design tolerates the inductance variation and benefits from increased current capacity.

Q: What are the physical dimension differences between these parts?

A: SS20H-20018 measures 0.866" L x 0.866" W x 0.728" H (22.00mm x 22.00mm x 18.50mm). Both substitutes (SS11VL-22013 and SS11VL-R22020) measure 0.866" L x 0.571" W x 0.768" H (22.00mm x 14.50mm x 19.50mm). The substitutes have reduced width and slightly increased height. PCB layout verification is required before substitution.

Q: Are there DC resistance differences that affect thermal performance?

A: SS20H-20018 specifies 110 mOhm maximum DCR. Both substitutes specify 120 mOhm maximum DCR. This 10 mOhm increase results in marginally higher resistive losses at rated current. At 2A operation, the additional power dissipation is approximately 40 mW, which is negligible in most power line filtering applications.

Q: Do all three parts share the same compliance certifications?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. All maintain Active product status with identical HTSUS classification (8504.31.4065). Compliance documentation is equivalent across all three options.

Q: Which substitute should be selected for new designs?

A: Selection depends on circuit inductance requirements. SS11VL-R22020 (2 mH) is preferred when inductance specification is 1.8 mH or higher. SS11VL-22013 (1.3 mH) is preferred when lower inductance values are acceptable and maximum current margin is prioritized. Both are Active products with equivalent long-term availability.