SS26V-100250 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SS26V-100250 is a 25 mH Common Mode Choke (CMC) manufactured by KEMET, designed for power line filtering applications. This through-hole mounted component operates at 1 kHz with a maximum current rating of 1A and DC resistance of 700 mOhm. The part is ROHS3 compliant and maintains active product status.

Substitute parts are identified when design requirements permit variation in inductance value, DC resistance, current rating, or physical dimensions while maintaining compatibility with the 2-line through-hole configuration, 250V AC voltage rating, and -25°C to 120°C operating temperature range.

Key Parameters

Parameter	Value
Manufacturer Part Number	SS26V-100250
Manufacturer	KEMET
Series	SS
Filter Type	Power Line
Number of Lines	2
Inductance @ 1 kHz	25 mH
Current Rating (Max)	1A
DC Resistance (Max)	700 mOhm
Voltage Rating - AC	250V
Operating Temperature	-25°C to 120°C
Mounting Type	Through Hole
Package / Case	Vertical, 4 PC Pin
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the SS26V-100250 are qualified based on the following criteria:

Fixed Parameters (Must Match):

Number of Lines: 2
Mounting Type: Through Hole
Voltage Rating - AC: 250V
Operating Temperature Range: -25°C to 120°C
Package / Case: Vertical, 4 PC Pin
Filter Type: Power Line
RoHS Status: ROHS3 Compliant
Product Status: Active

Variable Parameters (Allowed to Differ):

Inductance @ 1 kHz: 9.8 mH to 45 mH
Current Rating (Max): 1A to 1.2A
DC Resistance (Max): 600 mOhm to 700 mOhm
Physical Dimensions: Varies by series (SS21V, SS26V, SS28H, SS30V)

Substitution is valid when the application circuit can tolerate the inductance variation and the current/resistance specifications meet or exceed circuit requirements.

Parameter Comparison

Part Number	Inductance @ 1 kHz	Current Rating (Max)	DC Resistance (Max)	Size / Dimension (L x W)	Height (Max)	Inventory
SS26V-100250	25 mH	1A	700 mOhm	1.024" x 0.807" (26.00mm x 20.50mm)	1.201" (30.50mm)	956 Pcs
SS21V-100098	9.8 mH	1A	600 mOhm	0.807" x 0.650" (20.50mm x 16.50mm)	0.965" (24.50mm)	2272 Pcs
SS21V-R100146	14.6 mH	1A	600 mOhm	0.807" x 0.650" (20.50mm x 16.50mm)	0.965" (24.50mm)	1247 Pcs
SS26V-R100330	33 mH	1A	700 mOhm	1.024" x 0.807" (26.00mm x 20.50mm)	1.201" (30.50mm)	1276 Pcs
SS28H-R10450-CH	45 mH	1A	650 mOhm	1.181" x 1.181" (30.00mm x 30.00mm)	0.965" (24.50mm)	941 Pcs
SS30V-R120380	38 mH	1.2A	600 mOhm	1.220" x 0.886" (31.00mm x 22.50mm)	1.299" (33.00mm)	1120 Pcs

Engineering Selection Recommendations

SS21V-100098 (9.8 mH): Select when circuit design permits lower inductance and requires reduced DC resistance (600 mOhm). Smallest footprint among substitutes. Suitable for applications with higher frequency filtering requirements or lower impedance tolerance.

SS21V-R100146 (14.6 mH): Select when intermediate inductance between 9.8 mH and 25 mH is required. Maintains 600 mOhm DC resistance and compact SS21V form factor. Provides design flexibility for circuits requiring moderate filtering.

SS26V-R100330 (33 mH): Select when higher inductance filtering is required. Identical physical dimensions and DC resistance to the main part SS26V-100250. Maintains same footprint for direct board layout compatibility.

SS28H-R10450-CH (45 mH): Select for maximum inductance filtering in power line applications. Larger footprint (30.00mm x 30.00mm) requires board space verification. Lowest DC resistance among higher inductance options (650 mOhm).

SS30V-R120380 (38 mH): Select when higher current capacity (1.2A) is required. Offers 38 mH inductance with improved current handling. Larger overall dimensions require PCB layout confirmation.

All substitute parts maintain ROHS3 compliance, active product status, and 250V AC voltage rating. Selection depends on circuit inductance requirements, available PCB space, and current load specifications.

Frequently Asked Questions (FAQ)

Q: Can SS21V-100098 replace SS26V-100250 directly on the PCB?

A: Physical substitution is possible due to through-hole mounting compatibility. However, the SS21V-100098 has smaller dimensions (20.50mm x 16.50mm vs. 26.00mm x 20.50mm). Verify that the lower inductance value (9.8 mH vs. 25 mH) meets circuit filtering requirements before substitution.

Q: What is the primary difference between SS26V-R100330 and SS26V-100250?

A: The inductance value differs: SS26V-R100330 provides 33 mH compared to 25 mH in SS26V-100250. Both parts share identical physical dimensions, DC resistance (700 mOhm), and current rating (1A). Select SS26V-R100330 when higher filtering inductance is required.

Q: Is SS30V-R120380 compatible with circuits designed for 1A operation?

A: Yes. SS30V-R120380 has a maximum current rating of 1.2A, which exceeds the 1A requirement. It can operate safely in 1A circuits. The higher current rating provides design margin. Verify that the larger physical dimensions (31.00mm x 22.50mm x 33.00mm height) fit the available PCB space.

Q: Why does SS28H-R10450-CH have different height compared to other substitutes?

A: SS28H-R10450-CH uses the SS28H series form factor, which has a different internal construction. Height is 24.50mm (lower than SS26V series at 30.50mm) despite higher inductance (45 mH). Confirm PCB clearance and component placement before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SS21V-100098, SS21V-R100146, SS26V-R100330, SS28H-R10450-CH, SS30V-R120380) are ROHS3 compliant and maintain active product status, matching the compliance profile of SS26V-100250.

Q: What determines whether a part can substitute for SS26V-100250?

A: Substitution is valid when the following parameters match: 2-line configuration, through-hole mounting, 250V AC voltage rating, -25°C to 120°C operating temperature, vertical 4-pin package, and power line filter type. Inductance, current rating, DC resistance, and physical dimensions may vary based on circuit requirements.

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