SSR21NHS-15082 Equivalent & Substitute Parts Reference

Part Overview

The SSR21NHS-15082 is a 2-line common mode choke (CMC) manufactured by KEMET, designed for through-hole mounting applications. This component features an inductance of 8.2 mH at 10 kHz with a maximum current rating of 1.5A and DC resistance of 130 mOhm. The part operates across a temperature range of -25°C to 120°C and is rated for 250V AC. Currently in active product status with 632 pieces available in stock, this component is ROHS3 compliant and REACH unaffected. Equivalent and substitute parts are identified for applications requiring alternative inductance values, current ratings, or physical dimensions while maintaining core functional compatibility within the common mode choke category.

Substiute Parts

SSR21NHS-15082

KEMETIn Stock: 728SSR21NHS-15082 Datasheet

Current PartRFQ

SSRH7H-M15043

KEMETIn Stock: 1426SSRH7H-M15043 Datasheet

Parametric EquivalentRFQ

SSRH7H-M17029

KEMETIn Stock: 1991SSRH7H-M17029 Datasheet

Parametric EquivalentRFQ

SSRH7HS-M15036

KEMETIn Stock: 1682SSRH7HS-M15036 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSR21NHS-15082 are qualified based on the following core parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Number of Lines: 2 (all substitutes maintain 2-line configuration)
• Mounting Type: Through Hole (all substitutes are through-hole mounted)
• Package / Case: Vertical, 4 PC Pin (all substitutes use identical pin configuration)
• Voltage Rating - AC: 250V (all substitutes rated for 250V AC)
• Operating Temperature Range: -25°C to 120°C (all substitutes operate within this range)
• RoHS Status: ROHS3 Compliant (all substitutes maintain compliance)

Variable Parameters Defining Substitution Groups:

• Inductance @ 10 kHz: 8.2 mH (main part) vs. 2.9 mH, 3.6 mH, 4.3 mH (substitutes)
• Current Rating (Max): 1.5A (main part) vs. 1.5A or 1.7A (substitutes)
• DC Resistance (Max): 130 mOhm (main part) vs. 120 mOhm or 140 mOhm (substitutes)
• Physical Dimensions: 23.00mm x 23.00mm (main part) vs. 18.00mm x 14.50mm (substitutes)

All substitute parts are manufactured by KEMET and maintain active product status with confirmed inventory availability.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts for the SSR21NHS-15082 must be based on application-specific inductance requirements and physical space constraints:

SSRH7HS-M15036 Selection Criteria: This substitute provides 3.6 mH inductance with 130 mOhm DC resistance, matching the original part's resistance specification. Current rating remains at 1.5A. Physical dimensions are reduced to 18.00mm x 18.00mm footprint with 12.00mm maximum height, enabling deployment in space-constrained applications. All compliance certifications (ROHS3, REACH unaffected) are maintained. This part is suitable when inductance reduction to 44% of the original value is acceptable and compact board layout is required.

SSRH7H-M17029 Selection Criteria: This substitute provides 2.9 mH inductance with improved current rating of 1.7A and reduced DC resistance of 120 mOhm. Physical dimensions match SSRH7HS-M15036 at 18.00mm x 14.50mm with 12.00mm height. This configuration is applicable when lower inductance (35% of original), higher current capacity, and reduced resistive losses are required. All compliance certifications are maintained.

SSRH7H-M15043 Selection Criteria: This substitute provides 4.3 mH inductance with 140 mOhm DC resistance and 1.5A current rating. Physical dimensions are 18.00mm x 14.50mm with 12.00mm height. This part represents a moderate inductance reduction (52% of original) with minimal resistance increase. All compliance certifications are maintained. This configuration balances inductance retention with compact form factor requirements.

All substitute parts maintain active product status, ROHS3 compliance, and REACH unaffected designation. Selection should be based on circuit inductance requirements and available PCB space.

Frequently Asked Questions (FAQ)

Q: What determines whether a part can substitute for the SSR21NHS-15082?

A: Substitute parts must maintain identical core specifications: 2-line configuration, through-hole mounting, vertical 4-pin package, 250V AC rating, -25°C to 120°C operating range, and ROHS3 compliance. Variable parameters including inductance value, current rating, DC resistance, and physical dimensions define specific substitution scenarios.

Q: Can SSRH7H-M17029 replace SSR21NHS-15082 in all applications?

A: SSRH7H-M17029 is a functional substitute only in applications where 2.9 mH inductance is acceptable (versus 8.2 mH in the original). The higher current rating of 1.7A and lower DC resistance of 120 mOhm provide performance advantages in current-limited circuits. Physical dimensions are reduced, requiring PCB layout verification.

Q: What is the primary difference between SSRH7HS-M15036 and SSRH7H-M15043?

A: SSRH7HS-M15036 provides 3.6 mH inductance with 130 mOhm resistance, while SSRH7H-M15043 provides 4.3 mH inductance with 140 mOhm resistance. Both maintain 1.5A current rating and identical physical dimensions. Selection depends on whether higher inductance (SSRH7H-M15043) or lower resistance (SSRH7HS-M15036) is prioritized for the application.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use identical through-hole vertical 4-pin package configuration. However, physical footprint dimensions differ: SSR21NHS-15082 measures 23.00mm x 23.00mm, while all three substitutes measure 18.00mm x 14.50mm. PCB layout modifications may be required.

Q: Do substitute parts maintain the same compliance certifications?

A: All substitute parts are ROHS3 compliant and REACH unaffected, matching the original SSR21NHS-15082 certifications. All parts are manufactured by KEMET and maintain active product status with confirmed inventory availability.

Q: What inductance range is covered by the substitute parts?

A: Substitute parts provide inductance values of 2.9 mH, 3.6 mH, and 4.3 mH at 10 kHz, representing 35%, 44%, and 52% of the original 8.2 mH specification respectively. No substitute provides inductance equal to or exceeding the original value.