SS30V-R400028 Equivalent & Substitute Parts

Part Overview

The SS30V-R400028 is a 2.8 mH Common Mode Choke (CMC) manufactured by KEMET, designed for power line filtering applications. This through-hole component operates at 4A maximum current with 70 mOhm DC resistance and is rated for 250V AC operation across an operating temperature range of -25°C to 120°C. The part is ROHS3 compliant and currently active in production. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement in circuit applications.

Substiute Parts

SS30V-R400028

KEMETIn Stock: 719SS30V-R400028 Datasheet

Current PartRFQ

SS30V-400021

KEMETIn Stock: 1047SS30V-400021 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS30V-R400028 is determined by the following critical parameters that must remain constant or within acceptable tolerances:

Fixed Parameters (Must Match Exactly):

• Current Rating (Max): 4A
• DC Resistance (DCR) (Max): 70 mOhm
• Voltage Rating - AC: 250V
• Number of Lines: 2
• Mounting Type: Through Hole
• Physical Dimensions: 31.00 x 22.50 mm (L x W), Height 33.00 mm
• Operating Temperature Range: -25°C ~ 120°C
• Filter Type: Power Line
• Package / Case: Vertical, 4 PC Pin
• RoHS Status: ROHS3 Compliant

Variable Parameter (Allowable Variation):

• Inductance @ Frequency: The SS30V-R400028 specifies 2.8 mH @ 1 kHz. Substitute parts within the SS30V series may vary in inductance value while maintaining all other electrical and mechanical specifications.

The SS30V-400021 qualifies as a parametric equivalent because it maintains all fixed parameters while offering a different inductance value (2.1 mH @ 1 kHz), allowing selection based on specific circuit inductance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the SS30V-R400028 and SS30V-400021 are active production components manufactured by KEMET within the SS series. Both parts maintain identical electrical ratings for current (4A), DC resistance (70 mOhm), and AC voltage (250V), with matching physical dimensions and through-hole mounting configuration.

Selection between these parts is determined by the required inductance value at 1 kHz. The SS30V-R400028 provides 2.8 mH inductance, while the SS30V-400021 provides 2.1 mH inductance. Both parts satisfy ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for power line filtering applications.

The choice of substitute part depends on circuit design specifications for common mode attenuation and filtering characteristics at the operating frequency. Both parts are suitable for replacement based on identical mechanical compatibility and electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can SS30V-400021 replace SS30V-R400028 in any application?

A: The SS30V-400021 can replace the SS30V-R400028 only when the circuit design permits operation with 2.1 mH inductance instead of 2.8 mH. All other electrical and mechanical parameters are identical, ensuring physical and electrical compatibility. The specific inductance requirement of the application determines substitution feasibility.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical dimensions of 31.00 x 22.50 mm (length x width) and 33.00 mm maximum height. Both use vertical, 4 PC pin through-hole packaging, ensuring identical PCB footprint and mounting compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SS30V-R400028 and SS30V-400021 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.31.4065. Regulatory and environmental compliance is equivalent between the two parts.

Q: What is the primary difference between these substitute parts?

A: The inductance value at 1 kHz is the primary difference. SS30V-R400028 specifies 2.8 mH, while SS30V-400021 specifies 2.1 mH. Current rating, DC resistance, voltage rating, temperature range, and all mechanical specifications remain identical.

Q: Are both parts currently in production?

A: Yes. Both SS30V-R400028 and SS30V-400021 maintain active product status with KEMET. SS30V-R400028 has 638 pieces in stock, and SS30V-400021 has 950 pieces in stock as new original inventory.