Noise Suppression & Safety Capacitors

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We supply a wide range of Noise Suppression & Safety Capacitors to Delta, X1, X2, Y1 and Y2 suppression classes

What is a noise suppression safety capacitor?

Class-X and Class-Y noise suppression safety capacitors are safety-certified and generally designed and used in AC line filtering in many electronic device applications. These safety capacitors are also known by other names, including EMI/RFI suppression capacitors and AC line filter safety capacitors. (EMI stands for electromagnetic interference and RFI stands for radio-frequency interference; RFI is simply higher-frequency EMI.)

What does a noise suppression capacitor do?

For these capacitors to perform their EMI/RFI filtering tasks, they are directly connected to the AC line and neutral power input. And because of this direct connection to the AC voltage, the capacitors may be subjected to overvoltages and/or voltage transients—lightning strikes, power surges. Thus, capacitor failure is a very real possibility.

When a Class-X capacitor, also referred to as an "across the line capacitor"—the capacitor placed between line and neutral—fails because of an overvoltage event, it is likely to fail short. This failure, in turn, would cause an overcurrent protective device, like a fuse or circuit breaker, to open. Therefore, a capacitor failing in this fashion would not cause any electrical shock hazards.

If a Class-Y capacitor, also known as the "line to ground capacitor" or "the line bypass capacitor"—the capacitor placed between line and ground—fails short, this could lead to a fatal electric shock due to the loss of the ground connection. Class-Y safety capacitors are designed to fail open. A failure will cause your electronic device to be subjected to the noise and interference that the capacitor would normally filter out, but at least there will be no fatal electric shock hazard.

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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price (ex VAT) (inc VAT)	Quantity	Dielectric Type	Capacitor Case / Package	Voltage Rating	Capacitance	Current Rating	Suppression Class	Capacitance Tolerance	Capacitor Mounting	Voltage Rating X	Voltage Rating Y	dv/dt Rating	Humidity Rating	Lead Spacing	Operating Temperature Min	Operating Temperature Max	Qualification	Product Range
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R46KI310000M1K	2429368 Data Sheet + RoHS	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 10%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.261 £0.31 100+ £0.162 £0.19 500+ £0.134 £0.16 1000+ £0.12 £0.14 2000+ £0.108 £0.13 4000+ £0.107 £0.13 8000+ £0.105 £0.13 20000+ £0.103 £0.12 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	0.1µF	-	X2	± 10%	Through Hole	275VAC	-	400V/µs	GRADE II (Test Condition A)	15mm	-40°C	110°C	-	R46 Series
F17725102000	2528251 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PET, Radial Box - 2 Pin, 1 µF, ± 10%, X2, Through Hole VISHAY You previously purchased this product. View in Order History	Each	1+ £3.45 £4.14 5+ £2.84 £3.41 10+ £2.23 £2.68 20+ £2.12 £2.54 40+ £2.01 £2.41 100+ £1.90 £2.28 500+ £1.81 £2.17 1000+ £1.71 £2.05 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PET	Radial Box - 2 Pin	-	1µF	-	X2	± 10%	Through Hole	310VAC	-	100V/µs	GRADE II (Test Condition A)	27.5mm	-40°C	110°C	AEC-Q200	F1772
R46KF310000M1M	3288386 Data Sheet + RoHS	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.33 £0.40 100+ £0.271 £0.33 500+ £0.221 £0.27 1000+ £0.188 £0.23 2000+ £0.165 £0.20 4000+ £0.162 £0.19 8000+ £0.158 £0.19 20000+ £0.155 £0.19 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	0.1µF	-	X2	± 20%	Through Hole	275VAC	-	500V/µs	GRADE II (Test Condition A)	10mm	-40°C	110°C	-	R46 Series
R46KF222050N0K	1679295 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 22000 pF, ± 10%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.25 £0.30 100+ £0.214 £0.26 500+ £0.135 £0.16 1800+ £0.121 £0.15 3600+ £0.119 £0.14 5400+ £0.116 £0.14 9000+ £0.114 £0.14 21600+ £0.111 £0.13 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	22000pF	-	X2	± 10%	Through Hole	275VAC	-	500V/µs	GRADE II (Test Condition A)	10mm	-40°C	110°C	-	R46 Series
R413F12200000M	2112974 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 2200 pF, ± 20%, Y2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.293 £0.35 100+ £0.225 £0.27 500+ £0.172 £0.21 1000+ £0.166 £0.20 2000+ £0.163 £0.20 4000+ £0.16 £0.19 8000+ £0.156 £0.19 20000+ £0.153 £0.18 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	2200pF	-	Y2	± 20%	Through Hole	-	300VAC	800V/µs	GRADE II (Test Condition A)	10mm	-40°C	110°C	AEC-Q200	R41 Series

B32922C3223M000	1609505 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 22000 pF, ± 20%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	1+ £0.219 £0.26 50+ £0.204 £0.24 100+ £0.189 £0.23 250+ £0.165 £0.20 500+ £0.14 £0.17 1000+ £0.105 £0.13 5000+ £0.103 £0.12 10000+ £0.101 £0.12 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	22000pF	-	X2	± 20%	Through Hole	305VAC	-	340V/µs	GRADE II (Test Condition A)	15mm	-40°C	110°C	-	B32922

890324023025CS	2450003 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.15 µF, ± 10%, X2, Through Hole WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each	1+ £0.45 £0.54 50+ £0.321 £0.39 100+ £0.287 £0.34 250+ £0.229 £0.27 1000+ £0.213 £0.26 1776+ £0.209 £0.25 8880+ £0.204 £0.24 17760+ £0.20 £0.24 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	0.15µF	-	X2	± 10%	Through Hole	275VAC	-	300V/µs	GRADE II (Test Condition A)	10mm	-40°C	105°C	-	WCAP-FT

890324023028CS	2450004 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.22 µF, ± 10%, X2, Through Hole WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each	1+ £0.449 £0.54 50+ £0.348 £0.42 100+ £0.31 £0.37 250+ £0.286 £0.34 500+ £0.229 £0.27 1408+ £0.224 £0.27 7040+ £0.22 £0.26 14080+ £0.215 £0.26 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	0.22µF	-	X2	± 10%	Through Hole	275VAC	-	300V/µs	GRADE II (Test Condition A)	10mm	-40°C	105°C	-	WCAP-FT

F862DO474K310ZLH0J	2456692 Data Sheet Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.47 µF, ± 10%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.633 £0.76 50+ £0.408 £0.49 400+ £0.385 £0.46 800+ £0.361 £0.43 1190+ £0.349 £0.42 2380+ £0.336 £0.40 4360+ £0.324 £0.39 8320+ £0.312 £0.37 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	0.47µF	-	X2	± 10%	Through Hole	310VAC	-	200V/µs	GRADE II (Test Condition B)	22.5mm	-40°C	110°C	AEC-Q200	F862 Series

R413F147050M1M	2446227 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 4700 pF, ± 20%, Y2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.293 £0.35 100+ £0.252 £0.30 500+ £0.159 £0.19 1500+ £0.141 £0.17 3000+ £0.138 £0.17 4500+ £0.135 £0.16 9000+ £0.133 £0.16 21000+ £0.13 £0.16 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	4700pF	-	Y2	± 20%	Through Hole	-	300VAC	800V/µs	GRADE II (Test Condition A)	10mm	-40°C	110°C	AEC-Q200	R41 Series

B32924H3475M000	2677891 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 4.7 µF, ± 20%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	1+ £3.35 £4.02 5+ £2.99 £3.59 10+ £2.78 £3.34 25+ £2.62 £3.14 50+ £2.36 £2.83 160+ £2.13 £2.56 800+ £2.04 £2.45 1600+ £2.00 £2.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	4.7µF	-	X2	± 20%	Through Hole	305VAC	-	120V/µs	GRADE II (Test Condition A)	27.5mm	-40°C	110°C	AEC-Q200	B32924

B32934B3225K000	2797896 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PET, Radial Box - 2 Pin, 2.2 µF, ± 10%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	1+ £3.11 £3.73 5+ £2.96 £3.55 10+ £2.81 £3.37 25+ £2.75 £3.30 50+ £2.70 £3.24 200+ £2.64 £3.17 1000+ £2.59 £3.11 2000+ £2.53 £3.04 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PET	Radial Box - 2 Pin	-	2.2µF	-	X2	± 10%	Through Hole	305VAC	-	35V/µs	GRADE III (Test Condition B)	27.5mm	-40°C	105°C	AEC-Q200	B32934

PZB300MC23R06	2809025 Data Sheet + RoHS	Safety Capacitor, Metallized Paper, Radial Box - 3 Pin, 0.15 µF, ± 20%, Delta X2 / Y2 / Y2 KEMET You previously purchased this product. View in Order History	Each	1+ £1.63 £1.96 10+ £1.35 £1.62 50+ £1.16 £1.39 100+ £1.04 £1.25 500+ £0.947 £1.14 1080+ £0.872 £1.05 2160+ £0.845 £1.01 4320+ £0.831 £1.00 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized Paper	Radial Box - 3 Pin	-	0.15µF	-	Delta X2 / Y2 / Y2	± 20%	Through Hole	275VAC	275VAC	600V/µs	GRADE II (Test Condition A)	-	-40°C	100°C	-	PZB300/P300 Series

B32934D3155K000	2797897 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PET, Radial Box - 2 Pin, 1.5 µF, ± 10%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	1+ £2.68 £3.22 10+ £2.08 £2.50 25+ £1.97 £2.36 50+ £1.86 £2.23 100+ £1.62 £1.94 260+ £1.38 £1.66 1300+ £1.35 £1.62 2600+ £1.34 £1.61 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PET	Radial Box - 2 Pin	-	1.5µF	-	X2	± 10%	Through Hole	305VAC	-	35V/µs	GRADE III (Test Condition B)	27.5mm	-40°C	105°C	AEC-Q200	B32934

B32932A3104K000	2728578 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PET, Radial Box - 2 Pin, 0.1 µF, ± 10%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	10+ £0.529 £0.63 100+ £0.343 £0.41 500+ £0.281 £0.34 1000+ £0.275 £0.33 2000+ £0.27 £0.32 4000+ £0.264 £0.32 20000+ £0.259 £0.31 40000+ £0.253 £0.30 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PET	Radial Box - 2 Pin	-	0.1µF	-	X2	± 10%	Through Hole	305VAC	-	90V/µs	GRADE III (Test Condition B)	15mm	-40°C	105°C	AEC-Q200	B32932

R46KI310040H1M	2495828 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.1 µF, ± 20%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.224 £0.27 100+ £0.143 £0.17 900+ £0.115 £0.14 1800+ £0.112 £0.13 2700+ £0.108 £0.13 4500+ £0.106 £0.13 8100+ £0.104 £0.12 20700+ £0.102 £0.12 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	-	-	-	0.1µF	-	-	-	-	275VAC	-999VAC	400V/µs	-	15mm	-40°C	110°C	-888	-

P295BE681M500A	2528415 Data Sheet + RoHS	Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 680 pF, ± 20%, Y1, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.614 £0.74 50+ £0.573 £0.69 100+ £0.532 £0.64 500+ £0.401 £0.48 1000+ £0.325 £0.39 2000+ £0.323 £0.39 4000+ £0.32 £0.38 8000+ £0.314 £0.38 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized Paper	Radial Box - 2 Pin	-	680pF	-	Y1	± 20%	Through Hole	-	500VAC	2kV/µs	GRADE II (Test Condition A)	15mm	-40°C	115°C	AEC-Q200	P295 Series

PME271M433MR30	2913761 Data Sheet + RoHS	Safety Capacitor, Metallized Paper, Radial Box - 2 Pin, 3300 pF, ± 20%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.612 £0.73 50+ £0.543 £0.65 100+ £0.474 £0.57 500+ £0.357 £0.43 1000+ £0.309 £0.37 2000+ £0.288 £0.35 4000+ £0.278 £0.33 8000+ £0.272 £0.33 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized Paper	Radial Box - 2 Pin	-	3300pF	-	X2	± 20%	Through Hole	275VAC	-	1.2kV/µs	GRADE II (Test Condition A)	13.5mm	-40°C	110°C	-	PME271M/P276 Series

R413I222050T0K	3287724 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 22000 pF, ± 10%, Y2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.40 £0.48 50+ £0.321 £0.39 100+ £0.242 £0.29 700+ £0.202 £0.24 1400+ £0.191 £0.23 2100+ £0.179 £0.21 4200+ £0.177 £0.21 8400+ £0.175 £0.21 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	22000pF	-	Y2	± 10%	Through Hole	-	300VAC	600V/µs	GRADE III (Test Condition B)	15mm	-40°C	125°C	AEC-Q200	R41T Series

MKX2AW34705F00KSSD	3296228 Data Sheet + RoHS	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.47 µF, ± 10%, X2, Through Hole WIMA You previously purchased this product. View in Order History	Each	1+ £0.99 £1.19 10+ £0.72 £0.86 50+ £0.651 £0.78 100+ £0.582 £0.70 200+ £0.485 £0.58 500+ £0.388 £0.47 2500+ £0.384 £0.46 5000+ £0.372 £0.45 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	0.47µF	-	X2	± 10%	Through Hole	305VAC	-	-	-	22.5mm	-55°C	105°C	AEC-Q200	MKP

R46KF210000N0M	3288382 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 10000 pF, ± 20%, X2, Through Hole KEMET You previously purchased this product. View in Order History	Each	10+ £0.242 £0.29 100+ £0.209 £0.25 500+ £0.155 £0.19 1000+ £0.132 £0.16 2000+ £0.117 £0.14 4000+ £0.115 £0.14 8000+ £0.112 £0.13 20000+ £0.11 £0.13 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	Metallized PP	Radial Box - 2 Pin	-	10000pF	-	X2	± 20%	Through Hole	275VAC	-	500V/µs	GRADE II (Test Condition A)	10mm	-40°C	110°C	-	R46 Series

F340X252230MKM2T0	3130247 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, THB Grade IIB, Metallized PP, Radial Box - 2 Pin, 2.2 µF, ± 20%, X2, Through Hole VISHAY You previously purchased this product. View in Order History	Each	1+ £3.06 £3.67 5+ £2.74 £3.29 10+ £2.41 £2.89 20+ £2.25 £2.70 40+ £2.09 £2.51 80+ £1.82 £2.18 400+ £1.69 £2.03 800+ £1.61 £1.93 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	2.2µF	-	X2	± 20%	Through Hole	305VAC	-	100V/µs	GRADE III (Test Condition B)	27.5mm	-40°C	105°C	-	F340

ECQUAAF154SA	2925618 Data Sheet + RoHS	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 0.15 µF, ± 20%, X2, Through Hole PANASONIC You previously purchased this product. View in Order History	Each	1+ £0.27 £0.32 50+ £0.25 £0.30 100+ £0.229 £0.27 250+ £0.206 £0.25 500+ £0.182 £0.22 1000+ £0.142 £0.17 5000+ £0.14 £0.17 10000+ £0.138 £0.17 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PP	Radial Box - 2 Pin	-	0.15µF	-	X2	± 20%	Through Hole	275VAC	-	-	GRADE III (Test Condition B)	15mm	-40°C	110°C	AEC-Q200	ECQUA

B32934A3684M000	3519162 Data Sheet + RoHS	Safety Capacitor, Metallized PET, Radial Box - 2 Pin, 0.68 µF, ± 20%, X2, Through Hole EPCOS You previously purchased this product. View in Order History	Each	1+ £1.74 £2.09 10+ £1.24 £1.49 50+ £1.15 £1.38 100+ £1.05 £1.26 200+ £1.03 £1.24	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Metallized PET	Radial Box - 2 Pin	-	0.68µF	-	X2	± 20%	Through Hole	305VAC	-	35V/µs	GRADE III (Test Condition B)	27.5mm	-40°C	105°C	AEC-Q200	B32934

B32022A3473M289	3518767 Data Sheet + RoHS Date/Lot Code	Safety Capacitor, Metallized PP, Radial Box - 2 Pin, 47000 pF, ± 20%, Y2, Through Hole EPCOS You previously purchased this product. View in Order History	Each (Supplied on Full Reel) Full Reel	680+ £0.247 £0.30	Restricted Item Minimum order of 680 items Multiples of 680 only Please enter a valid quantity Add Min: 680 Mult: 680	Metallized PP	Radial Box - 2 Pin	-	47000pF	-	Y2	± 20%	Through Hole	-	300VAC	600V/µs	GRADE II (Test Condition A)	15mm	-40°C	110°C	-	B32022