SS26V-R180123 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SS26V-R180123 is a 2-line common mode choke (CMC) manufactured by KEMET, designed for power line filtering applications. This through-hole component features 12.3 mH inductance at 1 kHz with a maximum current rating of 1.8A and 300 mOhm DC resistance. The part is ROHS3 compliant and currently active in production with 703 units in stock.

Substitute parts are identified when inventory constraints, lead time requirements, or application-specific parameter tolerances necessitate alternative component selection while maintaining functional compatibility within the power line filtering circuit.

Substiute Parts

SS26V-R180123

KEMETIn Stock: 805SS26V-R180123 Datasheet

Current PartRFQ

SS35H-20170

KEMETIn Stock: 1334SS35H-20170 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS26V-R180123 are identified based on strict parametric compatibility within the KEMET SS series common mode choke product line. The substitution logic is governed by the following critical parameters:

Mandatory Compatibility Criteria:

• Series Family: KEMET SS series (ensures consistent design platform and pin configuration)
• Filter Type: Power Line (maintains application-specific filtering characteristics)
• Number of Lines: 2-line configuration (preserves circuit topology requirements)
• Mounting Type: Through Hole (ensures PCB assembly compatibility)
• Package / Case: Vertical, 4 PC Pin (guarantees mechanical and electrical interface compatibility)
• Voltage Rating (AC): 250V minimum (maintains electrical safety margins)
• Operating Temperature Range: -25°C to 120°C (ensures thermal compatibility)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (maintains regulatory alignment)

Allowable Parameter Variations: Substitute parts may exhibit higher inductance values, higher current ratings, and lower DC resistance values, provided all mandatory criteria are met. These variations represent enhanced or equivalent performance characteristics suitable for power line filtering applications.

Parameter Comparison

Engineering Selection Recommendations

SS35H-20170 Substitution Criteria:

The SS35H-20170 is a valid parametric equivalent for the SS26V-R180123 based on the following engineering factors:

1. Series Continuity: Both components belong to the KEMET SS series, ensuring consistent electrical and mechanical design standards.

2. Functional Equivalence: Both parts are 2-line common mode chokes rated for 250V AC power line filtering applications with identical operating temperature ranges (-25°C to 120°C).

3. Enhanced Performance Characteristics: The SS35H-20170 provides higher inductance (17 mH vs. 12.3 mH), higher current capacity (2.0A vs. 1.8A), and lower DC resistance (280 mOhm vs. 300 mOhm), representing improved filtering performance and thermal efficiency.

4. Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring equivalent environmental and safety standards.

5. Physical Compatibility: Both components utilize identical through-hole mounting with vertical 4-pin package configuration, ensuring direct PCB assembly compatibility.

6. Inventory Availability: The SS35H-20170 has higher stock availability (1237 units vs. 703 units), supporting supply chain continuity.

Selection Basis: Component selection should be based on circuit current requirements, inductance specifications, and PCB space constraints. The SS35H-20170 is suitable for applications requiring higher current handling or enhanced filtering performance within the same form factor and mounting interface.

Frequently Asked Questions (FAQ)

Q1: Can the SS35H-20170 directly replace the SS26V-R180123 in existing circuit designs?

A: Yes, the SS35H-20170 is a direct parametric equivalent within the KEMET SS series. Both components share identical mounting type (through-hole), package configuration (vertical 4-pin), voltage rating (250V AC), and operating temperature range (-25°C to 120°C). The substitute part provides enhanced performance with higher inductance and current capacity.

Q2: What are the key differences between these two common mode chokes?

A: The primary differences are inductance value (12.3 mH vs. 17 mH), maximum current rating (1.8A vs. 2.0A), and DC resistance (300 mOhm vs. 280 mOhm). The SS35H-20170 offers higher inductance for improved filtering attenuation and greater current handling capacity with lower resistive losses.

Q3: Are there physical size differences that affect PCB layout?

A: Yes. The SS26V-R180123 measures 26.00 × 20.50 mm (L × W) with 30.50 mm height. The SS35H-20170 measures 37.00 × 35.00 mm (L × W) with 30.00 mm height. The substitute part is larger in footprint but slightly shorter in height. PCB layout verification is required to confirm space availability.

Q4: Do both parts meet the same regulatory standards?

A: Yes. Both the SS26V-R180123 and SS35H-20170 are ROHS3 compliant and REACH unaffected, ensuring identical environmental and regulatory compliance for power line filtering applications.

Q5: Which part should be selected for new designs?

A: Selection depends on circuit requirements. For applications requiring 1.8A maximum current with 12.3 mH inductance, use the SS26V-R180123. For applications requiring higher current capacity (2.0A) or enhanced filtering performance (17 mH inductance), use the SS35H-20170. Both are active production parts with adequate inventory.

Q6: Is the higher inductance of the SS35H-20170 always beneficial?

A: Higher inductance provides greater common-mode noise attenuation in power line filtering circuits. However, circuit design specifications must be verified to ensure the 17 mH inductance value is compatible with intended filtering frequency response and impedance matching requirements.