SSRH7H-M031157 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SSRH7H-M031157 is a 2-line common mode choke manufactured by KEMET, designed for through-hole mounting applications. This component features 115.7 mH inductance at 10 kHz with a 300 mA maximum current rating and 3.57 Ohm DC resistance. The part operates across a temperature range of -25°C to 120°C and is rated for 250V AC. The SSRH7H-M031157 maintains Active product status and is ROHS3 compliant.

Substitute parts are identified when equivalent electrical performance can be achieved through alternative KEMET common mode choke models that maintain the same current rating, voltage specifications, and operating temperature range while accommodating variations in inductance values and physical dimensions based on application requirements.

Substiute Parts

SSRH7H-M031157

KEMETIn Stock: 1115SSRH7H-M031157 Datasheet

Current PartRFQ

SSHB21H-03770

KEMETIn Stock: 1083SSHB21H-03770 Datasheet

Parametric EquivalentRFQ

SSHB21H-R031580

KEMETIn Stock: 889SSHB21H-R031580 Datasheet

Parametric EquivalentRFQ

SSHB21HS-03656

KEMETIn Stock: 1191SSHB21HS-03656 Datasheet

Parametric EquivalentRFQ

SSHB21HS-R031350

KEMETIn Stock: 1206SSHB21HS-R031350 Datasheet

Parametric EquivalentRFQ

SSR21NH-M031900

KEMETIn Stock: 924SSR21NH-M031900 Datasheet

Parametric EquivalentRFQ

SSR21NV-M031900

KEMETIn Stock: 1716SSR21NV-M031900 Datasheet

Parametric EquivalentRFQ

SSRH7HS-M03925

KEMETIn Stock: 1630SSRH7HS-M03925 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSRH7H-M031157 are qualified based on the following criteria:

Core Electrical Parameters (Non-Negotiable):

• Number of Lines: 2
• Current Rating (Max): 300 mA
• Voltage Rating - AC: 250V
• Operating Temperature Range: -25°C ~ 120°C
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin

Variable Parameters (Application-Dependent):

• Inductance @ 10 kHz: Range from 65.6 mH to 190 mH
• DC Resistance (DCR): Range from 2.9 Ohm to 3.57 Ohm
• Physical Dimensions: Two size categories available

All substitute parts maintain Active product status and ROHS3 compliance. Substitution is valid when the application circuit can accommodate the inductance variation and the physical footprint fits the available board space.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, meeting the regulatory and availability requirements equivalent to the SSRH7H-M031157.

Same-Footprint Substitutes (Identical Physical Dimensions):

SSRH7HS-M03925 occupies the same 18.00mm x 14.50mm footprint with 12.00mm maximum height as the main part. This substitute provides 92.5 mH inductance with reduced DC resistance of 3.18 Ohm, suitable for applications where lower inductance and improved efficiency are acceptable.

Larger-Footprint Substitutes (SSHB21H Series):

SSHB21H-03770, SSHB21H-R031580, SSHB21HS-03656, and SSHB21HS-R031350 require 26.00mm x 23.00mm board space with 15.50mm maximum height. These parts offer inductance values ranging from 65.6 mH to 158 mH with DC resistance between 2.95 Ohm and 3.2 Ohm. Selection depends on available PCB area and required inductance specification.

Alternative-Footprint Substitutes (SSR Series):

SSR21NH-M031900 and SSR21NV-M031900 both provide 190 mH inductance with 2.9 Ohm DC resistance. SSR21NH-M031900 requires 23.00mm x 23.00mm space with 14.50mm height. SSR21NV-M031900 requires 22.00mm x 16.00mm space but extends to 27.00mm height, suitable for applications with vertical clearance availability.

Frequently Asked Questions (FAQ)

Q: Can SSRH7HS-M03925 directly replace SSRH7H-M031157 without circuit modification?

A: SSRH7HS-M03925 shares identical physical dimensions and electrical ratings (300 mA, 250V AC, -25°C to 120°C). The inductance difference of 23.2 mH (92.5 mH versus 115.7 mH) and reduced DC resistance (3.18 Ohm versus 3.57 Ohm) require circuit analysis to confirm compatibility with the intended filtering or impedance matching function.

Q: What is the primary difference between SSHB21H and SSHB21HS series substitutes?

A: Both series share identical physical dimensions (26.00mm x 23.00mm x 15.50mm) and current rating (300 mA). The SSHB21HS variants feature lower DC resistance (2.95 Ohm) compared to SSHB21H variants (3.2 Ohm), resulting in reduced power dissipation. Inductance values differ within each series: SSHB21H offers 77 mH and 158 mH; SSHB21HS offers 65.6 mH and 135 mH.

Q: Are SSR21NH-M031900 and SSR21NV-M031900 electrically identical?

A: Both parts provide identical electrical specifications: 190 mH inductance at 10 kHz, 300 mA current rating, 2.9 Ohm DC resistance, and 250V AC voltage rating. Physical dimensions differ: SSR21NH-M031900 measures 23.00mm x 23.00mm x 14.50mm; SSR21NV-M031900 measures 22.00mm x 16.00mm x 27.00mm. Selection depends on available PCB footprint and vertical clearance.

Q: Can larger-footprint SSHB21H series parts substitute for the compact SSRH7H-M031157?

A: Electrical substitution is valid when the application circuit accommodates the inductance variation and DC resistance change. Physical substitution requires available PCB space of 26.00mm x 23.00mm with 15.50mm clearance, compared to the original 18.00mm x 14.50mm x 12.00mm requirement.

Q: What inductance range is available across all substitute options?

A: Substitute parts span inductance values from 65.6 mH (SSHB21HS-03656) to 190 mH (SSR21NH-M031900 and SSR21NV-M031900). The original part operates at 115.7 mH. Selection must align with circuit requirements for common mode filtering or impedance matching.

Q: Do all substitute parts meet the same compliance standards as SSRH7H-M031157?

A: All listed substitute parts maintain ROHS3 compliance and Active product status. All operate within the -25°C to 120°C temperature range and are rated for 250V AC operation, matching the regulatory and environmental specifications of the main part.