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SEK Series Capacitors

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Termination Style	Capacitance	Tolerance	Voltage Rating DC
Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD SEK331M050ST Knowles / Illinois Capacitor 1: $2.10 10,508In Stock	Mfr. Part No. SEK331M050ST Mouser Part No 539-SEK50V330	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 330uF 50V RAD	Datasheet	10,508In Stock	$2.10 $1.42 $1.12 $0.933 $0.83	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	330 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 25V 220uF ELEC RADL SEK221M025ST Knowles / Illinois Capacitor 1: $1.22 31In Stock 1,500Expected 29/03/2027	Mfr. Part No. SEK221M025ST Mouser Part No 539-SEK25V220	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 25V 220uF ELEC RADL	Datasheet	31In Stock 1,500Expected 29/03/2027	$1.22 $1.19 $0.576 $0.43	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	220 uF	20 %	25 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL SEK471M025ST Knowles / Illinois Capacitor 1: $2.15 410In Stock	Mfr. Part No. SEK471M025ST Mouser Part No 539-SEK25V470	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 25V 470uF RADIAL	Datasheet	410In Stock	$2.15 $1.79 $1.19	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	470 uF	20 %	25 VDC
Aluminium Electrolytic Capacitors - Radial Leaded ALUM EL 35V 1000uF SEK102M035ST Knowles / Illinois Capacitor 1: $3.96 189In Stock	Mfr. Part No. SEK102M035ST Mouser Part No 539-SEK35V1000	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded ALUM EL 35V 1000uF	Datasheet	189In Stock	$3.96 $2.68 $2.22 $1.99	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	1 mF	20 %	35 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 470uF 35V SEK471M035ST Knowles / Illinois Capacitor 1: $2.50 30In Stock	Mfr. Part No. SEK471M035ST Mouser Part No 539-SEK471M035ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 470uF 35V	Datasheet	30In Stock	$2.50 $2.15 $1.33 $1.18	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	470 uF	20 %	35 VDC
Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 10uF 105C SEK100M050ST Knowles / Illinois Capacitor 1: $0.95 1,749In Stock 5,000Expected 16/11/2026	Mfr. Part No. SEK100M050ST Mouser Part No 539-SEK50V10	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 10uF 105C	Datasheet	1,749In Stock 5,000Expected 16/11/2026	$0.95 $0.512 $0.41 $0.331 View $0.306 $0.276	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	10 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 100uF 50V RAD SEK101M050ST Knowles / Illinois Capacitor 1: $1.27 1,834In Stock 3,500Expected 16/11/2026	Mfr. Part No. SEK101M050ST Mouser Part No 539-SEK50V100	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 100uF 50V RAD	Datasheet	1,834In Stock 3,500Expected 16/11/2026	$1.27 $0.656 $0.592 $0.482 $0.448	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	100 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 22uF 105C SEK220M050ST Knowles / Illinois Capacitor 1: $0.81 3,959In Stock 2,000Expected 30/12/2026	Mfr. Part No. SEK220M050ST Mouser Part No 539-SEK50V22	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded RADIAL 50V 22uF 105C	Datasheet	3,959In Stock 2,000Expected 30/12/2026	$0.81 $0.409 $0.357 $0.288 View $0.245 $0.239	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	22 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 1uF 50V SEK010M050ST Knowles / Illinois Capacitor 1: $0.84 3,624In Stock 10,000Expected 30/12/2026	Mfr. Part No. SEK010M050ST Mouser Part No 598-SEK010M050ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 1uF 50V	Datasheet	3,624In Stock 10,000Expected 30/12/2026	$0.84 $0.41 $0.367 $0.294 View $0.27 $0.241	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	1 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 1uF 200V 20% SEK010M200ST Knowles / Illinois Capacitor 1: $0.64 41In Stock	Mfr. Part No. SEK010M200ST Mouser Part No 598-SEK010M200ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 1uF 200V 20%	Datasheet	41In Stock	$0.64 $0.332 $0.281 $0.207 View $0.194 $0.174	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	1 uF	20 %	200 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 10uF 25V 20% SEK100M025ST Knowles / Illinois Capacitor 1: $0.52 1,720In Stock	Mfr. Part No. SEK100M025ST Mouser Part No 598-SEK100M025ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 10uF 25V 20%	Datasheet	1,720In Stock	$0.52 $0.245 $0.21 $0.167 View $0.15 $0.135	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	10 uF	20 %	25 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 10uF 250V 20% SEK100M250ST Knowles / Illinois Capacitor 1: $1.09 1,320In Stock	Mfr. Part No. SEK100M250ST Mouser Part No 598-SEK100M250ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 10uF 250V 20%	Datasheet	1,320In Stock	$1.09 $0.569 $0.466	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	10 uF	20 %	250 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 100uF 16V SEK101M016ST Knowles / Illinois Capacitor 1: $0.91 347In Stock	Mfr. Part No. SEK101M016ST Mouser Part No 598-SEK101M016ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 100uF 16V	Datasheet	347In Stock	$0.91 $0.444 $0.399 $0.32 View $0.295 $0.264	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	100 uF	20 %	16 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 100uF 25V SEK101M025ST Knowles / Illinois Capacitor 1: $1.49 195In Stock 20,000Expected 05/04/2027	Mfr. Part No. SEK101M025ST Mouser Part No 598-SEK101M025ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 100uF 25V	Datasheet	195In Stock 20,000Expected 05/04/2027	$1.49 $0.785 $0.71 $0.578 View $0.536 $0.491	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	100 uF	20 %	25 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 100uF 63V SEK101M063ST Knowles / Illinois Capacitor 1: $1.24 2,556In Stock	Mfr. Part No. SEK101M063ST Mouser Part No 598-SEK101M063ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 100uF 63V	Datasheet	2,556In Stock	$1.24 $1.23 $0.755	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	100 uF	20 %	63 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 100uF 100V 20% SEK101M100ST Knowles / Illinois Capacitor 1: $2.52 644In Stock	Mfr. Part No. SEK101M100ST Mouser Part No 598-SEK101M100ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 100uF 100V 20%	Datasheet	644In Stock	$2.52 $1.72 $1.42 $1.17	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	100 uF	20 %	100 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V SEK102M050ST Knowles / Illinois Capacitor 1: $5.59 195In Stock	Mfr. Part No. SEK102M050ST Mouser Part No 598-SEK102M050ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 1000uF 50V	Datasheet	195In Stock	$5.59 $3.76 $3.26 $2.96 View $2.61 $2.49	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	1 mF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 22uF 63V -40C +105C SEK220M063ST Knowles / Illinois Capacitor 1: $0.53 1,353In Stock	Mfr. Part No. SEK220M063ST Mouser Part No 598-SEK220M063ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 22uF 63V -40C +105C	Datasheet	1,353In Stock	$0.53 $0.25 $0.215 $0.174 View $0.158 $0.139	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	22 uF	20 %	63 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 22uF 100V SEK220M100ST Knowles / Illinois Capacitor 1: $1.28 1,595In Stock	Mfr. Part No. SEK220M100ST Mouser Part No 598-SEK220M100ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 22uF 100V	Datasheet	1,595In Stock	$1.28 $0.638 $0.576 $0.443 $0.423	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	22 uF	20 %	100 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 220uF 63V -40C +105C SEK221M063ST Knowles / Illinois Capacitor 1: $1.36 923In Stock	Mfr. Part No. SEK221M063ST Mouser Part No 598-SEK221M063ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 220uF 63V -40C +105C	Datasheet	923In Stock	$1.36 $0.807 $0.667	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	220 uF	20 %	63 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 50V 20% SEK2R2M050ST Knowles / Illinois Capacitor 1: $0.53 2,294In Stock	Mfr. Part No. SEK2R2M050ST Mouser Part No 598-SEK2R2M050ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 50V 20%	Datasheet	2,294In Stock	$0.53 $0.262 $0.226 $0.225 $0.208	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	2.2 uF	20 %	50 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 100V 20% SEK2R2M100ST Knowles / Illinois Capacitor 1: $0.51 88In Stock	Mfr. Part No. SEK2R2M100ST Mouser Part No 598-SEK2R2M100ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 2.2uF 100V 20%	Datasheet	88In Stock	$0.51 $0.28 $0.25 $0.20	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	2.2 uF	20 %	100 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 33uF 35V 20% SEK330M035ST Knowles / Illinois Capacitor 1: $0.58 6,591In Stock	Mfr. Part No. SEK330M035ST Mouser Part No 598-SEK330M035ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 33uF 35V 20%	Datasheet	6,591In Stock	$0.58 $0.313 $0.241 $0.192 $0.191	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	33 uF	20 %	35 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 330uF 16V SEK331M016ST Knowles / Illinois Capacitor 1: $1.35 280In Stock	Mfr. Part No. SEK331M016ST Mouser Part No 598-SEK331M016ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 330uF 16V	Datasheet	280In Stock	$1.35 $0.87 $0.668 $0.537 $0.456	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	330 uF	20 %	16 VDC
Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 200V 20% SEK3R3M200ST Knowles / Illinois Capacitor 1: $0.88 507In Stock	Mfr. Part No. SEK3R3M200ST Mouser Part No 598-SEK3R3M200ST	Knowles / Illinois Capacitor	Aluminium Electrolytic Capacitors - Radial Leaded 3.3uF 200V 20%	Datasheet	507In Stock	$0.88 $0.444 $0.368 $0.305 View $0.283 $0.264	Min.: 1 Mult.: 1	Electrolytic Capacitors	General Purpose Electrolytic Capacitors	Radial	3.3 uF	20 %	200 VDC

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SEK Series Capacitors

Types of Capacitors

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