SS21V-R100146 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SS21V-R100146 is a 2-line common mode choke manufactured by KEMET, designed for power line filtering applications. This through-hole component features 14.6 mH inductance at 1 kHz with a 1A maximum current rating and 600 mOhm DC resistance. The part is ROHS3 compliant and maintains active product status. Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges for power line filtering applications, or when design flexibility permits inductance and current rating variations within acceptable operational limits.

Key Parameters

Parameter	Value	Unit
Manufacturer	KEMET	—
Series	SS	—
Filter Type	Power Line	—
Number of Lines	2	—
Inductance @ 1 kHz	14.6	mH
Current Rating (Max)	1	A
DC Resistance (Max)	600	mOhm
Voltage Rating AC	250	V
Operating Temperature	-25 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 SS21V-R100146 are classified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

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

Electrical Parameter Flexibility:

Inductance @ 1 kHz: 9.8 mH to 45 mH
Current Rating (Max): 1A to 1.2A
DC Resistance (Max): 550 mOhm to 700 mOhm

Substitutes are valid when all primary criteria are met and electrical parameters fall within the specified ranges. Mechanical dimensions may vary based on inductance and current rating requirements.

Parameter Comparison

Part Number	Inductance @ 1 kHz (mH)	Current Rating (A)	DCR Max (mOhm)	Size L x W (mm)	Height Max (mm)	Inventory (Pcs)
SS21V-R100146	14.6	1	600	20.50 x 16.50	24.50	1247
SS21V-100098	9.8	1	600	20.50 x 16.50	24.50	2272
SS24H-R10170-CH	17	1	550	26.00 x 26.00	21.00	982
SS26V-120169	16.9	1.2	550	26.00 x 20.50	30.50	1062
SS26V-R100330	33	1	700	26.00 x 20.50	30.50	1276
SS26V-R120220	22	1.2	550	26.00 x 20.50	30.50	821
SS28H-R10450-CH	45	1	650	30.00 x 30.00	24.50	941
SS30V-R120380	38	1.2	600	31.00 x 22.50	33.00	1120
SU10VFC-R10045	4.5	1	550	18.00 x 15.50	15.00	1048

Engineering Selection Recommendations

Direct Mechanical Compatibility (Same Footprint):

SS21V-100098 shares identical mechanical dimensions (20.50mm x 16.50mm x 24.50mm) and package configuration with the SS21V-R100146. This part operates at lower inductance (9.8 mH versus 14.6 mH) while maintaining 1A current rating and 600 mOhm DCR. Selection is appropriate when lower inductance filtering is acceptable within circuit design parameters.

Higher Inductance Alternatives (Larger Footprint):

SS26V-120169, SS26V-R120220, and SS30V-R120380 provide higher inductance values (16.9 mH, 22 mH, and 38 mH respectively) with increased current ratings (1.2A). These parts require larger PCB space but deliver enhanced filtering performance. SS26V-120169 and SS26V-R120220 occupy 26.00mm x 20.50mm footprints, while SS30V-R120380 requires 31.00mm x 22.50mm space.

Maximum Inductance Option:

SS28H-R10450-CH delivers 45 mH inductance at 1A rating with a 30.00mm x 30.00mm footprint. This part provides maximum filtering capability within the 1A current class.

Lower Inductance Compact Option:

SU10VFC-R10045 is the smallest substitute at 18.00mm x 15.50mm with 4.5 mH inductance. This part is suitable for space-constrained applications where lower inductance filtering is sufficient.

Compliance Verification:

All substitute parts maintain ROHS3 compliance, active product status, 250V AC voltage rating, and -25°C to 120°C operating temperature range. All parts are through-hole mounted with vertical 4-pin configuration.

Frequently Asked Questions (FAQ)

Q: Can SS21V-100098 replace SS21V-R100146 directly?

A: Yes. Both parts share identical mechanical dimensions, mounting type, package configuration, current rating, and DCR specification. The inductance difference (9.8 mH versus 14.6 mH) must be evaluated against circuit filtering requirements. Both parts are ROHS3 compliant with active product status.

Q: What is the primary difference between SS21V-R100146 and SS26V-120169?

A: SS26V-120169 provides higher inductance (16.9 mH versus 14.6 mH), increased current rating (1.2A versus 1A), and lower DCR (550 mOhm versus 600 mOhm). However, it requires a larger footprint (26.00mm x 20.50mm versus 20.50mm x 16.50mm) and greater height (30.50mm versus 24.50mm).

Q: Is SU10VFC-R10045 suitable as a substitute?

A: SU10VFC-R10045 is mechanically and electrically compatible but operates at significantly lower inductance (4.5 mH versus 14.6 mH). Selection depends on whether reduced filtering performance is acceptable for the application. This part offers the smallest footprint (18.00mm x 15.50mm).

Q: Can I use SS28H-R10450-CH for higher filtering requirements?

A: Yes. SS28H-R10450-CH provides 45 mH inductance at 1A rating, delivering maximum filtering within the 1A current class. The 30.00mm x 30.00mm footprint is larger than the original part. All compliance and temperature specifications remain equivalent.

Q: What are the current rating implications for substitution?

A: The original SS21V-R100146 is rated for 1A maximum current. Substitutes with 1.2A ratings (SS26V-120169, SS26V-R120220, SS30V-R120380) provide additional current capacity but require larger physical packages. Parts with 1A ratings maintain the original current specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with active product status, matching the original part's regulatory compliance profile.

Q: How do I select between multiple substitute options?

A: Selection criteria include: (1) required inductance value for filtering performance, (2) available PCB space for mechanical dimensions, (3) maximum current requirement, and (4) acceptable DC resistance. Verify that the selected part's inductance and current rating align with circuit design specifications.

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