SSHB21HS-12110 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SSHB21HS-12110 is a 2-line common mode choke manufactured by KEMET, rated for 11 mH inductance at 10 kHz with a maximum current rating of 1.2A. This through-hole component operates across a temperature range of -25°C to 120°C and complies with ROHS3 and REACH standards. The part is currently active in production with 857 units in stock.

Substitute parts are identified when equivalent electrical performance can be achieved through alternative KEMET common mode choke models that maintain compatibility with the same mounting footprint, current rating, and operating specifications. Selection of substitute components is necessary when primary inventory is unavailable or when design requirements permit inductance variation within acceptable application parameters.

Substiute Parts

SSHB21HS-12110

KEMETIn Stock: 910SSHB21HS-12110 Datasheet

Current PartRFQ

SSHB21H-12145

KEMETIn Stock: 662SSHB21H-12145 Datasheet

Parametric EquivalentRFQ

SSHB21HS-R12220

KEMETIn Stock: 1023SSHB21HS-R12220 Datasheet

Parametric EquivalentRFQ

SSR21NH-M12345

KEMETIn Stock: 1494SSR21NH-M12345 Datasheet

Parametric EquivalentRFQ

SSR21NHS-M12220

KEMETIn Stock: 1045SSR21NHS-M12220 Datasheet

Parametric EquivalentRFQ

SSR21NVS-M12220

KEMETIn Stock: 735SSR21NVS-M12220 Datasheet

Parametric EquivalentRFQ

SSRH24NVS-12500

KEMETIn Stock: 1431SSRH24NVS-12500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSHB21HS-12110 are grouped based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Number of Lines: 2 (all substitutes maintain this specification)
• Current Rating (Max): 1.2A (all substitutes maintain this specification)
• Voltage Rating (AC): 250V (all substitutes maintain this specification)
• Operating Temperature Range: -25°C to 120°C (all substitutes maintain this specification)
• Mounting Type: Through Hole (all substitutes maintain this specification)
• Package / Case: Vertical, 4 PC Pin (all substitutes maintain this specification)
• RoHS Status: ROHS3 Compliant (all substitutes maintain this specification)
• Product Status: Active (all substitutes are active production items)

Variable Parameter (Inductance @ 10 kHz): Substitute parts differ in inductance values: 14.5 mH, 22 mH, 34.5 mH, and 50 mH. These variations allow selection based on specific circuit requirements while maintaining all other electrical and mechanical compatibility parameters.

Secondary Consideration (DC Resistance): DCR values range from 350 mOhm to 490 mOhm across the substitute group. Lower DCR values (350 mOhm) reduce power dissipation; higher values (490 mOhm) are acceptable where thermal constraints are less critical.

Dimensional Variations: While most substitutes maintain the 26.00mm × 23.00mm footprint, certain models (SSR series) feature a 23.00mm × 23.00mm footprint with different height specifications. These dimensional differences must be verified against PCB layout constraints before selection.

Parameter Comparison

Engineering Selection Recommendations

For Direct Footprint Compatibility (26.00mm × 23.00mm):

The SSHB21HS-R12220 (22 mH) and SSHB21H-12145 (14.5 mH) maintain identical physical dimensions and mounting footprint to the SSHB21HS-12110. Both parts are ROHS3 compliant, active production items, and rated for the same current and voltage specifications. Selection between these options depends on whether the application requires higher inductance (22 mH) or can operate with intermediate inductance (14.5 mH).

For Compact Footprint Alternatives (23.00mm × 23.00mm):

The SSR21NH-M12345 (34.5 mH) and SSR21NHS-M12220 (22 mH) offer reduced footprint dimensions while maintaining all electrical ratings. These parts are suitable for space-constrained applications. The SSR21NHS-M12220 provides lower DCR (350 mOhm) compared to the main part, reducing power dissipation. Both are ROHS3 compliant and active production items.

For Higher Inductance Requirements:

The SSRH24NVS-12500 (50 mH) provides the highest inductance value in the substitute group. This part is ROHS3 compliant and active production, with the highest inventory availability (1376 units). Height specification is 31.00mm; dimensional compatibility must be verified against application constraints.

For Lowest Power Dissipation:

The SSR21NHS-M12220 and SSR21NVS-M12220 both feature 350 mOhm DCR, the lowest among all options. These parts reduce resistive losses compared to the main part (430 mOhm). The SSR21NHS-M12220 is recommended for standard through-hole PCB layouts; the SSR21NVS-M12220 is suitable only where the 22.00mm × 16.00mm footprint and 27.00mm height are compatible.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and active production status, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can SSHB21HS-R12220 be used as a direct replacement for SSHB21HS-12110?

A: Yes, the SSHB21HS-R12220 is a direct physical and electrical substitute. Both parts share identical footprint dimensions (26.00mm × 23.00mm), height (15.50mm), current rating (1.2A), voltage rating (250V AC), temperature range (-25°C to 120°C), and DCR specification (430 mOhm). The inductance difference (22 mH versus 11 mH) must be verified as acceptable for the application circuit.

Q: What is the difference between SSHB and SSR series common mode chokes?

A: The SSHB series maintains a footprint of 26.00mm × 23.00mm with height 15.50mm. The SSR series uses a more compact 23.00mm × 23.00mm footprint with height 14.50mm. Both series maintain identical electrical ratings (1.2A, 250V AC, -25°C to 120°C operating range) and are ROHS3 compliant. Series selection depends on available PCB space.

Q: Why does SSR21NHS-M12220 have lower DCR (350 mOhm) than SSHB21HS-12110 (430 mOhm)?

A: DCR variation reflects different winding designs and core materials within the KEMET product portfolio. Lower DCR reduces resistive power dissipation during operation. Both specifications are within acceptable ranges for 1.2A rated components. Selection should consider thermal budget requirements of the application.

Q: Can SSR21NVS-M12220 be used in a standard through-hole PCB layout?

A: The SSR21NVS-M12220 features a 22.00mm × 16.00mm footprint and 27.00mm height, which differs significantly from the standard SSHB21HS-12110 dimensions (26.00mm × 23.00mm, 15.50mm height). This part is suitable only for applications where the PCB layout specifically accommodates these dimensions. Verify footprint compatibility before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed (SSHB21H-12145, SSHB21HS-R12220, SSR21NH-M12345, SSR21NHS-M12220, SSR21NVS-M12220, SSRH24NVS-12500) are ROHS3 compliant and REACH unaffected. All parts are active production items with confirmed inventory availability.

Q: What inductance value should I select if the application permits flexibility?

A: Inductance selection depends on circuit requirements. The available range spans 11 mH (original part) to 50 mH (SSRH24NVS-12500). Lower inductance values (11–22 mH) are suitable for higher-frequency filtering; higher values (34.5–50 mH) provide greater attenuation at lower frequencies. Verify the application's frequency response requirements before selection.

Q: Is the SSRH24NVS-12500 suitable for my application if space is limited?

A: The SSRH24NVS-12500 features a maximum height of 31.00mm, which is significantly taller than the SSHB21HS-12110 (15.50mm). This part is suitable only for applications where vertical clearance is available. Verify PCB layout constraints and component placement before selection.