SSHB21HS-R07550 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SSHB21HS-R07550 is a 2-line common mode choke manufactured by KEMET, rated for 55 mH inductance at 10 kHz with a maximum current rating of 700mA. This through-hole component features a DC resistance of 1.03Ohm and operates across a temperature range of -25°C to 120°C. The part is ROHS3 compliant and maintains active product status. Substitute parts are identified when design requirements permit variation in inductance values while maintaining compatibility across electrical and mechanical parameters.

Substiute Parts

SSHB21HS-R07550

KEMETIn Stock: 985SSHB21HS-R07550 Datasheet

Current PartRFQ

SSHB21H-R07700

KEMETIn Stock: 979SSHB21H-R07700 Datasheet

Parametric EquivalentRFQ

SSHB21HS-07267

KEMETIn Stock: 1076SSHB21HS-07267 Datasheet

Parametric EquivalentRFQ

SSR21NH-M07890

KEMETIn Stock: 1471SSR21NH-M07890 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSHB21HS-R07550 are qualified based on the following criteria:

Maintained Parameters (Substitution Requirements):

• Number of Lines: 2
• Current Rating (Max): 700mA
• Voltage Rating - AC: 250V
• Operating Temperature: -25°C ~ 120°C
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin
• RoHS Status: ROHS3 Compliant
• Product Status: Active

Variable Parameters (Allowed to Differ):

• Inductance @ 10 kHz: 26.7 mH to 89 mH
• DC Resistance (Max): 1.03Ohm to 1.16Ohm
• Size / Dimension: 0.906" L x 0.906" W (23.00mm x 23.00mm) to 1.024" L x 0.906" W (26.00mm x 23.00mm)
• Height (Max): 0.571" (14.50mm) to 0.610" (15.50mm)

Substitutes are identified within the KEMET common mode choke product family where inductance values differ to accommodate alternative filtering requirements while preserving core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original SSHB21HS-R07550 specification. Selection among substitutes depends on inductance requirements specific to the application circuit.

SSHB21H-R07700 provides increased inductance at 70 mH with marginally elevated DC resistance of 1.16Ohm, suitable for applications requiring enhanced filtering at the cost of slightly increased power dissipation.

SSHB21HS-07267 offers reduced inductance at 26.7 mH while maintaining the original 1.03Ohm DC resistance, appropriate for circuits where lower inductance values are acceptable or preferred.

SSR21NH-M07890 delivers the highest inductance at 89 mH with minimal DC resistance increase to 1.05Ohm. This part features a compact footprint with reduced length and height dimensions compared to the main part, accommodating space-constrained layouts while maintaining electrical performance.

All substitutes preserve the 700mA current rating, 250V AC voltage rating, -25°C to 120°C operating temperature range, and through-hole vertical mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can SSHB21H-R07700 be used as a direct replacement for SSHB21HS-R07550?

A: SSHB21H-R07700 is electrically compatible when inductance variation from 55 mH to 70 mH is acceptable within circuit design tolerances. Both parts share identical current rating, voltage rating, operating temperature range, mounting type, and package configuration. DC resistance increases from 1.03Ohm to 1.16Ohm, resulting in proportionally increased power dissipation.

Q: What is the primary difference between SSHB21HS-07267 and the main part?

A: SSHB21HS-07267 provides lower inductance at 26.7 mH compared to 55 mH in the main part. DC resistance remains at 1.03Ohm. Physical dimensions and all electrical ratings remain identical. This substitute applies to applications requiring reduced filtering inductance.

Q: How does SSR21NH-M07890 differ mechanically from SSHB21HS-R07550?

A: SSR21NH-M07890 features a more compact footprint with length reduced from 1.024" to 0.906" and height reduced from 0.610" to 0.571". Width remains at 0.906". All electrical parameters including current rating, voltage rating, and operating temperature are maintained.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SSHB21H-R07700, SSHB21HS-07267, and SSR21NH-M07890 are all ROHS3 compliant, matching the regulatory status of the original SSHB21HS-R07550.

Q: What determines whether a substitute part is suitable for my application?

A: Substitution suitability is determined by circuit tolerance for inductance variation, available PCB space for physical dimensions, and acceptable power dissipation levels based on DC resistance. All listed substitutes maintain identical current and voltage ratings, operating temperature range, and mounting configuration.

Q: Can SSR21NH-M07890 be used in a space-constrained design?

A: SSR21NH-M07890 is suitable for space-constrained applications due to its reduced length and height dimensions. The part maintains all electrical specifications including 700mA current rating and 250V AC voltage rating. Verify that the 89 mH inductance value aligns with circuit filtering requirements.