Fixed Capacitors

Reset All

Part	Manufacturer	Capacitor Type	Mounting Feature	Capacitance	Rated DC Voltage (URdc)	Maximum Operating Temperature	Dielectric Material	Tan Delta	Minimum Operating Temperature	Temperature Coef (ppm/Cel)	Terminal Finish	Leakage Current (mA)	Package Shape	Polarity	Height	Width	Ripple Current (mA)	Diameter	Multi-layer	Equivalent Series Resistance / ESR (mohm )	Additional Features	Packing Method	Size Code	JESD-609 Code	No. of Terminals	Package Style (Meter)	Rated AC Voltage (URac)	Length	Terminal Shape	Positive Tolerance	Temperature Characteristics Code	Reference Standard	Negative Tolerance	Terminal Pitch
EEUFC1H222	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	THROUGH HOLE MOUNT	2200 uF	50 V	105 Cel	ALUMINUM (WET)	0.14	-55 Cel		TIN COPPER	1.1	CYLINDRICAL PACKAGE	POLARIZED			2480	18 mm				BULK		e2	2	Radial		35.5 mm	WIRE	20 %		AEC-Q200	20 %	7.5 mm
EEUFR1V102B	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	THROUGH HOLE MOUNT	1000 uF	35 V	105 Cel	ALUMINUM (WET)	0.14	-40 Cel		TIN	0.35	CYLINDRICAL PACKAGE	POLARIZED			1950	12.5 mm				AMMO PACK		e3	2	Radial		20 mm	WIRE	20 %			20 %	5 mm
25TZV470M10X10.5	Rubycon	ALUMINUM ELECTROLYTIC CAPACITOR	SURFACE MOUNT	470 uF	25 V	105 Cel	ALUMINUM (WET)	0.14	-55 Cel		TIN BISMUTH	0.1175	RECTANGULAR PACKAGE	POLARIZED	10.5 mm	10.3 mm	510	10 mm				TR, 15 Inch	4141	e6	2	SMT		10.3 mm	FLAT	20 %		AEC-Q200	20 %
TAJB476K010RNJ	KYOCERA AVX	TANTALUM CAPACITOR	SURFACE MOUNT	47 uF	10 V	125 Cel	TANTALUM (DRY/SOLID)	0.08	-55 Cel		Matte Tin (Sn) - with Nickel (Ni) barrier	0.0047	RECTANGULAR PACKAGE	POLARIZED	1.9 mm	2.8 mm	117			1000	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, PLASTIC, 7 INCH	1210	e3	2	SMT		3.5 mm	J BEND	10 %			10 %
293D106X0010A2TE3	Vishay Intertechnology	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	10 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		MATTE TIN OVER NICKEL	0.001	RECTANGULAR PACKAGE	POLARIZED	1.6 mm	1.6 mm	60			3400	RIPPLE CURRENT AND ESR IS MEASURED AT 100KHZ	TR, EMBOSSED PLASTIC, 7 INCH	1206	e3	2	SMT		3.2 mm	J BEND	20 %			20 %
CNA6P1X7R2A475K250AE	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	4.7 uF	100 V	125 Cel	CERAMIC		-55 Cel	15%			RECTANGULAR PACKAGE		2.5 mm	2.5 mm			Yes			TR, EMBOSSED PLASTIC, 7 INCH	1210		2	SMT		3.2 mm	WRAPAROUND	10 %	X7R	AEC-Q200	10 %
12101C225KAT2A	KYOCERA AVX	CERAMIC CAPACITOR	SURFACE MOUNT	2.2 uF	100 V	125 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		2.79 mm	2.5 mm			Yes			TR, EMBOSSED, 7 INCH	1210	e3	2	SMT		3.3 mm	WRAPAROUND	10 %	X7R		10 %
C3216X5R1E226M160AB	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	22 uF	25 V	85 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		1.6 mm	1.6 mm			Yes			TR, 7 INCH	1206	e3	2	SMT		3.2 mm	WRAPAROUND	20 %	X5R		20 %
T491C107K010AT	KEMET Corporation	TANTALUM CAPACITOR	SURFACE MOUNT	100 uF	10 V	125 Cel	TANTALUM (DRY/SOLID)	0.08	-55 Cel		MATTE TIN OVER NICKEL	0.01		POLARIZED	2.5 mm	3.2 mm	133			1000	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, EMBOSSED PLASTIC, 7 INCH	2413	e3	2	SMT		6 mm	J BEND	10 %			10 %
ALS30A223KE063	KEMET Corporation	ALUMINUM ELECTROLYTIC CAPACITOR	CHASSIS MOUNT	22000 uF	63 V	85 Cel	ALUMINUM (WET)		-40 Cel			6	CYLINDRICAL PACKAGE	POLARIZED			13900	51 mm		12					2	Screw Ends		82 mm	SCREW	20 %			20 %
T491A106K016ATAUTO7280	KEMET Corporation	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	16 V	125 Cel	TANTALUM (DRY/SOLID)	0.08	-55 Cel		MATTE TIN OVER NICKEL	0.0016		POLARIZED	1.6 mm	1.6 mm	41.6			7000	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, Embossed Plastic, 13 Inch	1206	e3	2	SMT		3.2 mm	J BEND	10 %		AEC-Q200	10 %
TMK325B7226MM-TR	Taiyo Yuden	CERAMIC CAPACITOR	SURFACE MOUNT	22 uF	25 V	125 Cel	CERAMIC		-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		2.5 mm	2.5 mm			Yes			TR, EMBOSSED, 7 INCH	1210	e3	2	SMT		3.2 mm	WRAPAROUND	20 %	X7R		20 %
293D106X9025C2TE3	Vishay Intertechnology	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	25 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		Matte Tin (Sn) - with Nickel (Ni) barrier	0.0025	RECTANGULAR PACKAGE	POLARIZED	2.5 mm	3.2 mm	108			1500	RIPPLE CURRENT AND ESR IS MEASURED AT 100KHZ	TR, EMBOSSED PLASTIC, 7 INCH	2312	e3	2	SMT		6 mm	J BEND	10 %			10 %
597D476X9050Z2T	Vishay Intertechnology	TANTALUM CAPACITOR	SURFACE MOUNT	47 uF	50 V	125 Cel	TANTALUM (DRY/SOLID)	0.08	-55 Cel		MATTE TIN OVER NICKEL	0.024	RECTANGULAR PACKAGE	POLARIZED	6 mm	6 mm	440			240	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, Embossed Plastic, 7 Inch	3024	e3	2	SMT		7.6 mm	WRAPAROUND	10 %			10 %
C0805X104K5RACAUTO	KEMET Corporation	CERAMIC CAPACITOR	SURFACE MOUNT	.1 uF	50 V	125 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.78 mm	1.25 mm			Yes			TR, EMBOSSED PLASTIC, 7 INCH	0805	e3	2	SMT		2 mm	WRAPAROUND	10 %	X7R	AEC-Q200	10 %
C1005X5R1A475M050BC	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	4.7 uF	10 V	85 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, 7 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	20 %	X5R		20 %
EEUFC1J101B	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	THROUGH HOLE MOUNT	100 uF	63 V	105 Cel	ALUMINUM (WET)	0.08	-55 Cel		TIN COPPER	0.063	CYLINDRICAL PACKAGE	POLARIZED			347.75	10 mm				AMMO PACK		e2	2	Radial		12.5 mm	WIRE	20 %		AEC-Q200	20 %	5 mm
C1005C0G1E102J050BA	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	.001 uF	25 V	125 Cel	CERAMIC		-55 Cel	30ppm/Cel	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, 7 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	5 %	C0G		5 %
CGA3E3X8R1H104K080AB	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	.1 uF	50 V	150 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.8 mm	.8 mm			Yes			TR, 7 INCH	0603	e3	2	SMT		1.6 mm	WRAPAROUND	10 %	X8R	AEC-Q200	10 %
TAJA226M006RNJ	KYOCERA AVX	TANTALUM CAPACITOR	SURFACE MOUNT	22 uF	6.3 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		Matte Tin (Sn) - with Nickel (Ni) barrier	0.0014	RECTANGULAR PACKAGE	POLARIZED	1.6 mm	1.6 mm	63			3000	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, PLASTIC, 7 INCH	1206	e3	2	SMT		3.2 mm	J BEND	20 %			20 %
VJ0402Y104KXJCW1BC	Vishay Intertechnology	CERAMIC CAPACITOR	SURFACE MOUNT	.1 uF	16 V	125 Cel	CERAMIC		-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, Paper, 7 Inch	0402	e3	2	SMT		1 mm	WRAPAROUND	10 %	X7R		10 %
UMK316BBJ106ML-T	Taiyo Yuden	CERAMIC CAPACITOR	SURFACE MOUNT	10 uF	50 V	85 Cel	CERAMIC	0.1	-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		1.6 mm	1.6 mm			Yes			TR, EMBOSSED, 7 INCH	1206	e3	2	SMT		3.2 mm	WRAPAROUND	20 %	X5R		20 %
CC0402KRX7R9BB332	Yageo	CERAMIC CAPACITOR	SURFACE MOUNT	.0033 uF	50 V	125 Cel	CERAMIC		-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, PAPER, 7 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	10 %	X7R		10 %
ECPU1C104MA5	Panasonic	FILM CAPACITOR	SURFACE MOUNT	.1 uF	16 V	85 Cel	PLASTIC		-40 Cel		TIN SILVER COPPER		RECTANGULAR PACKAGE		1 mm	1.25 mm						TR, EMBOSSED, 7 INCH	0805	e1	2	SMT		2 mm	WRAPAROUND	20 %			20 %
EEEFP1H221AP	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	SURFACE MOUNT	220 uF	50 V	105 Cel	ALUMINUM (WET)	0.10	-55 Cel		Tin/Bismuth (Sn/Bi)	0.11	CYLINDRICAL PACKAGE	POLARIZED	10.2 mm	10.3 mm	585	10 mm		120	ESR IS MEASURED AT 100KHZ	TR, EMBOSSED, 15 INCH	4141	e6	2	SMT		10.3 mm	WIRE	20 %		AEC-Q200	20 %
GRM158R61A226ME15D	Murata Manufacturing	CERAMIC CAPACITOR	SURFACE MOUNT	22 uF	10 V	85 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.8 mm	.5 mm			Yes			TR, PAPER, 7 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	20 %	X5R		20 %
08055C104K4T4A	KYOCERA AVX	CERAMIC CAPACITOR	SURFACE MOUNT	.1 uF	50 V	125 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.94 mm	1.25 mm			Yes			TR, PAPER, 13 INCH	0805	e3	2	SMT		2.01 mm	WRAPAROUND	10 %	X7R	AEC-Q200	10 %
EEEFPE101XAP	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	SURFACE MOUNT	100 uF	25 V	105 Cel	ALUMINUM (WET)	0.14	-55 Cel		Tin/Bismuth (Sn/Bi)	0.025	CYLINDRICAL PACKAGE	POLARIZED	7.7 mm	6.6 mm	390	6.3 mm		160	ESR IS MEASURED AT 100KHZ	TR, EMBOSSED, 15 INCH	2626	e6	2	SMT		6.6 mm	WIRE	20 %		AEC-Q200	20 %
LMK212B7475KG-T	Taiyo Yuden	CERAMIC CAPACITOR	SURFACE MOUNT	4.7 uF	10 V	125 Cel	CERAMIC		-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		1.25 mm	1.25 mm			Yes			TR, EMBOSSED, 7 INCH	0805	e3	2	SMT		2 mm	WRAPAROUND	10 %	X7R		10 %
SEK4R7M050ST	Cornell Dubilier Electronics	ALUMINUM ELECTROLYTIC CAPACITOR	THROUGH HOLE MOUNT	4.7 uF	50 V	105 Cel	ALUMINUM (WET)	0.12	-55 Cel		TIN	0.003	CYLINDRICAL PACKAGE	POLARIZED			30	5 mm		33880				e3	2	Radial		11 mm	WIRE	20 %			20 %	2 mm
T491D106K035ATAUTO	KEMET Corporation	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	35 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		MATTE TIN OVER NICKEL	.0035	RECTANGULAR PACKAGE	POLARIZED	2.8 mm	4.3 mm				1000	ESR IS MEASURED AT 100 KHZ	TR, 7 INCH	2917	e3	2	SMT		7.3 mm	J BEND	10 %		AEC-Q200	10 %	1.3 mm
ECA1VM101	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	THROUGH HOLE MOUNT	100 uF	35 V	85 Cel	ALUMINUM (WET)	0.14	-40 Cel		TIN	0.035	CYLINDRICAL PACKAGE	POLARIZED			210	6.3 mm				BULK		e3	2	Radial		11.2 mm	WIRE	20 %			20 %	2.5 mm
TAJC106K035RNJV	KYOCERA AVX	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	35 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		Matte Tin (Sn) - with Nickel (Ni) barrier	.0035	RECTANGULAR PACKAGE	POLARIZED	2.6 mm	3.2 mm				1600	STANDARD: AEC-Q200	TR, 7 INCH	2312	e3	2	SMT		6 mm	J BEND	10 %			10 %
C1608X7R1A225K080AC	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	2.2 uF	10 V	125 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.8 mm	.8 mm			Yes			TR, 7 INCH	0603	e3	2	SMT		1.6 mm	WRAPAROUND	10 %	X7R		10 %
CC1206KKX7R8BB106	Yageo	CERAMIC CAPACITOR	SURFACE MOUNT	10 uF	25 V	125 Cel	CERAMIC		-55 Cel	15%	Matte Tin (Sn) - with Nickel (Ni) barrier		RECTANGULAR PACKAGE		1.6 mm	1.6 mm			Yes			TR, BLISTER, 7 INCH	1206	e3	2	SMT		3.2 mm	WRAPAROUND	10 %	X7R		10 %
CNA6P1X7R1H106K250AE	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	10 uF	50 V	125 Cel	CERAMIC		-55 Cel	15%			RECTANGULAR PACKAGE		2.5 mm	2.5 mm			Yes			TR, EMBOSSED PLASTIC, 7 INCH	1210		2	SMT		3.2 mm	WRAPAROUND	10 %	X7R	AEC-Q200	10 %
GCM155R71C104KA55J	Murata Manufacturing	CERAMIC CAPACITOR	SURFACE MOUNT	.1 uF	16 V	125 Cel	CERAMIC		-55 Cel	15%	TIN OVER NICKEL		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, PAPER, 13 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	10 %	X7R	AEC-Q200	10 %
T491A106M010AT	KEMET Corporation	TANTALUM CAPACITOR	SURFACE MOUNT	10 uF	10 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		MATTE TIN OVER NICKEL	0.001	RECTANGULAR PACKAGE	POLARIZED	1.6 mm	1.6 mm	55			3800	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, EMBOSSED PLASTIC, 7 INCH	1206	e3	2	SMT		3.2 mm	J BEND	20 %			20 %
C0402C330J5GACTU	KEMET Corporation	CERAMIC CAPACITOR	SURFACE MOUNT	.000033 uF	50 V	125 Cel	CERAMIC		-55 Cel	30ppm/Cel	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		.5 mm	.5 mm			Yes			TR, PUNCHED PAPER, 7 INCH	0402	e3	2	SMT		1 mm	WRAPAROUND	5 %	C0G		5 %
C2012X7R1C475K125AB	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	4.7 uF	16 V	125 Cel	CERAMIC		-55 Cel	15%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		1.25 mm	1.25 mm			Yes			TR, 7 INCH	0805	e3	2	SMT		2 mm	WRAPAROUND	10 %	X7R		10 %
CGA9N3X7S2A106K230KE	TDK	CERAMIC CAPACITOR	SURFACE MOUNT	10 uF	100 V	125 Cel	CERAMIC		-55 Cel	22%	MATTE TIN OVER NICKEL		RECTANGULAR PACKAGE		2.3 mm	5 mm			Yes			TR, 7 INCH	2220	e3	2	SMT		5.7 mm	WRAPAROUND	10 %	X7S	AEC-Q200	10 %
T495X476K035ATE300	KEMET Corporation	TANTALUM CAPACITOR	SURFACE MOUNT	47 uF	35 V	125 Cel	TANTALUM (DRY/SOLID)	0.08	-55 Cel		MATTE TIN OVER NICKEL	0.0165	RECTANGULAR PACKAGE	POLARIZED	4 mm	4.3 mm	118.8			300		TR, EMBOSSED PLASTIC, 7 INCH	2917	e3	2	SMT		7.3 mm	J BEND	10 %			10 %
TAJB475K025RNJ	KYOCERA AVX	TANTALUM CAPACITOR	SURFACE MOUNT	4.7 uF	25 V	125 Cel	TANTALUM (DRY/SOLID)	0.06	-55 Cel		Matte Tin (Sn) - with Nickel (Ni) barrier	0.0012	RECTANGULAR PACKAGE	POLARIZED	1.9 mm	2.8 mm	95			1500	ESR AND RIPPLE CURRENT IS MEASURED AT 100KHZ	TR, PLASTIC, 7 INCH	1210	e3	2	SMT		3.5 mm	J BEND	10 %			10 %
B32672P4105K000	TDK	FILM CAPACITOR	THROUGH HOLE MOUNT	1 uF	450 V	125 Cel	POLYPROPYLENE		-55 Cel		TIN		RECTANGULAR PACKAGE									BULK		e3	2		160 V		WIRE	10 %		AEC-Q200	10 %
16SVPF1000M	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	SURFACE MOUNT	1000 uF	16 V	105 Cel	ALUMINUM (SOLID POLYMER)	0.12	-55 Cel			3.2	CYLINDRICAL PACKAGE	POLARIZED	12.6 mm	10.3 mm	270	10 mm		12	ESR IS MEASURED AT 100KHZ TO 300KHZ	TR, EMBOSSED, 15 INCH	4141		2	SMT		10.3 mm	FLAT	20 %			20 %
935C1W10K-F	Cornell Dubilier Electronics	FILM CAPACITOR	THROUGH HOLE MOUNT	10 uF	100 V	105 Cel	POLYPROPYLENE		-55 Cel		TIN		TUBULAR PACKAGE				8200	20.4 mm		9	ESR IS MEASURED AT 20-100KHZ, RIPPLE CURRENT IS MEASURED AT 20-100KHZ AND 85CEL			e3	2	Axial	70 V	38.1 mm	WIRE	10 %		UL	10 %
EEVFK1V681Q	Panasonic	ALUMINUM ELECTROLYTIC CAPACITOR	SURFACE MOUNT	680 uF	35 V	105 Cel	ALUMINUM (WET)	0.12	-55 Cel		TIN	0.238	CYLINDRICAL PACKAGE	POLARIZED	13.5 mm	13.5 mm	825	12.5 mm				TR, EMBOSSED, 13 INCH	5353	e3	2	SMT		13.5 mm	FLAT	20 %		AEC-Q200	20 %
GCM32EC71H106KA03K	Murata Manufacturing	CERAMIC CAPACITOR	SURFACE MOUNT	10 uF	50 V	125 Cel	CERAMIC		-55 Cel	22%	TIN OVER NICKEL		RECTANGULAR PACKAGE		2.5 mm	2.5 mm			Yes			TR, EMBOSSED, 13 INCH	1210	e3	2	SMT		3.2 mm	WRAPAROUND	10 %	X7S	AEC-Q200	10 %

Fixed Capacitors

Fixed capacitors are electronic components that have a fixed capacitance value that cannot be changed. They are used in electronic circuits to provide a specific capacitance value for a given application.

Fixed capacitors are made using a variety of dielectric materials, including ceramic, tantalum, aluminum electrolytic, polyester, and polypropylene. The choice of dielectric material depends on the specific requirements of the application, such as operating voltage, temperature range, and stability.

Fixed capacitors are available in a variety of shapes and sizes, such as through-hole, surface mount, and leaded types. They can also be classified based on their operating voltage, tolerance, and temperature coefficient.

Some common applications of fixed capacitors include decoupling, filtering, timing, and coupling circuits. In decoupling circuits, fixed capacitors are used to filter out unwanted high-frequency noise and ensure stable power supply operation. In timing circuits, fixed capacitors are used to set the time constant and determine the frequency of oscillation.

One of the main advantages of fixed capacitors is their stable capacitance value, which does not change over time or with changes in operating conditions. This makes them suitable for applications that require consistent and predictable performance.