Keypad Switches

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Part	Manufacturer	Switch Type	Mounting Feature	Switch Function	Type (Actuator)	Contact Function	Solderability	Center Contact Plating	Color (Actuator)	Housing Material	Body Color	No. of Switches	Angle (Actuator)	Dielectric Withstand Volts (V)	Terminal Material	Electrical Life	DC Maximum Power Rating R Load (Contact)	Insulation Resistance	Circuit Config	Packing Method	Maximum Contact Bounce Time	Body Length/Diameter	Body Width	Length (Bushing)	Sealing	Contact Timing	Maximum Operating Force	Insulator Material	End Contact Plating	Body Height	DC Maximum Rating R Load (Contact)	Maximum Operating Temperature	Maximum AC Contact Current	Center Contact Material	Minimum Operating Temperature	Length (Actuator)	Terminal Finish	Switch Action	Maximum DC Contact Current	Termination Type	Manufacturer Series	Contact Resistance	Diameter (Bushing)	Actuator Travel (mm)	End Contact Material	PCB Hole Count	Maximum DC Contact Voltage	Additional Features	Maximum AC Contact Voltage	JESD-609 Code	Terminal Length	Material (Actuator)
EVQP6DB35	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				1000000 Cycle(s)			1X1	BOX; TAPE AND REEL	8 ms	4.1 mm	4.1 inch		DUST PROOF		1.6 N			.35 mm	.02A@15VDC	70 Cel			-20 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER	EVQP6						15 V			e4
EVQP6YB55	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				500000 Cycle(s)			1X1	BOX; TAPE AND REEL	8 ms	4.1 mm	4.1 inch		DUST PROOF		2.4 N			.43 mm	.02A@15VDC	70 Cel			-20 Cel			MOMENTARY	.02 A	SOLDER	EVQP6						15 V			e4
EVQQ2M03W	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		ON-OFF	REFLOW					1				1000000 Cycle(s)		100000000 ohm	1X1	BOX; TAPE AND REEL	10 ms	6.5 mm	6 inch			SNAP ACTION	1.3 N			1.8 mm	.02A@15VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER		100 mohm					15 V			e4
PTS636SP50LFS	C & K Components	KEYPAD SWITCH	THROUGH HOLE-STRAIGHT	SPST			REFLOW		BLACK			1		250VAC		20000 Cycle(s)		100000000 ohm	1X1	BAG	10 ms	6 mm	3.5 inch		IP40		3.63 N			3.3 mm	0.05A@12VDC	90 Cel			-40 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.3		2	12 V				.154 inch
PTS645VM13SMTR92LFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST			REFLOW					1		100VAC		100000 Cycle(s)		100000000 ohm	1X1	TR, 13 INCH	10 ms	7.112 mm	7.0104 inch				2.06 N			6.6 mm	0.05A@12VDC	70 Cel			-20 Cel	.05 inch	SILVER	MOMENTARY	.05 A	SOLDER		100 mohm		.254			12 V			e4
PTS840ESDGKPSMTRLFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST			REFLOW					1		250VAC		100000 Cycle(s)		100000000 ohm	1X1	TR, 13 INCH	10 ms	3.55 mm	3.5 inch				2.94 N			1.35 mm		85 Cel			-40 Cel		SILVER	MOMENTARY-TACTILE	.05 A	SOLDER		500 mohm		0.3			12 V			e4
TL1105RF160Q94VO	E-switch	KEYPAD SWITCH	THROUGH HOLE-RIGHT ANGLE	SPST				SILVER				1		250VAC	BRASS	100000 Cycle(s)		100000000 ohm	1X1			7.1 mm					2.06 N		SILVER	6.5 mm	0.05A@12VDC	70 Cel			-20 Cel	.269 inch		MOMENTARY-TACTILE	.05 A	SOLDER		50 mohm		0.25		4	12 V				.138 inch
1301.9314	Schurter Ag	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		OFF-(ON)	REFLOW					1			BRASS	100000 Cycle(s)			1X1	BOX	.1 ms	6 mm	6 inch	0 inch	IP40		2.1 N			3.6 mm	.05A@12VDC	70 Cel			-20 Cel	.028 inch		MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm	0 inch				12 V	LOOSE IN BOXES PACKAGING
KSC351GLFS	ITT Cannon	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	HARD TYPE			SILVER				1					1VA@32VDC	1000000000 ohm	1X1	TAPE AND REEL	1 ms	6.2 mm	6.2 inch		IP67		5.5 N		SILVER	2.6 mm	.05A@32VDC	85 Cel		SILVER	-40 Cel		Silver (Ag)	MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm			SILVER		32 V			e4
PTS647SN38SMTR2LFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1		250VAC		100000 Cycle(s)		100000000 ohm	1X1	TR, 13 INCH		4.5 mm	4.5 inch				1.47 N			2.9 mm	0.05A@12VDC	70 Cel			-20 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.25			12 V
3.14.100.001/0000	Rafi & Kg	KEYBOARD	THROUGH HOLE-STRAIGHT	SPST	KEYPAD							1				1000000 Cycle(s)		1000000000 ohm	1X1			15 mm	15 inch			SNAP ACTION	3.5 N			9 mm	.1A@35VDC	70 Cel			-25 Cel			MOMENTARY	.1 A	SOLDER		100 mohm		.508			35 V	PANEL MOUNTABLE
5GTH935+1SS0910.4	Apem Components	KEYPAD SWITCH	THROUGH HOLE-STRAIGHT	SPST						PPS		1				10000000 Cycle(s)		10000000 ohm	1X1		.5 ms	10.1 mm	10.1 inch		IP67		3.5 N			6.4 mm	0.05A@24VDC	160 Cel			-40 Cel			MOMENTARY	.05 A	SOLDER		30 mohm					24 V					PPS
5GTH935+1SS09-10.4	Apem Components
EVQP7B01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				2.2 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQP7C01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				2.2 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQP7D01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				2.2 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQP7K01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				1.6 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQP7L01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				1.6 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQP7M01K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	3.5 mm	2.9 inch				1.6 N			1.35 mm	.05A@12VDC	70 Cel			-20 Cel			MOMENTARY	.05 A	SOLDER	EVQP7						12 V
EVQPQMB55	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				50000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	4.5 mm	4.5 inch				3 N			.45 mm	.02A@15VDC	70 Cel			-20 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER							15 V			e4
EVQQ2P01W	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		ON-OFF	REFLOW					1				1000000 Cycle(s)		100000000 ohm	1X1	BOX; TAPE AND REEL	10 ms	6.5 mm	6 inch			SNAP ACTION	1.6 N			1.8 mm	.02A@15VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER		100 mohm					15 V			e4
EVQQ2S03W	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		ON-OFF	REFLOW					1				1000000 Cycle(s)		100000000 ohm	1X1	BOX; TAPE AND REEL	10 ms	6.5 mm	6 inch			SNAP ACTION	1.6 N			1.8 mm	.02A@15VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER		100 mohm					15 V			e4
KT11P3JM34LFS	ITT Cannon	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	HARD TYPE							1				100000 Cycle(s)			1X1	TAPE AND REEL					IP57		3 N				.031A@32VDC	90 Cel			-40 Cel		SILVER	MOMENTARY-TACTILE	.031 A	SOLDER	KT						32 V			e4
RA3CSH9	Apem Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				10000000 Cycle(s)			1X1		2 ms	14 mm			IP67; MOISTURE PROOF		3 N			6.4 mm	.05A@24VDC	160 Cel			-40 Cel			MOMENTARY	.05 A	SOLDER	3C						24 V
SKRBACE010	Alps Alpine	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	SHARP STEM	ON-OFF	REFLOW					1	0 deg	100VAC		500000 Cycle(s)		100000000 ohm	1X1	TR		4.8006 mm	3.9878 inch				2.55 N			.5588 mm	0.05A@12VDC	85 Cel			-30 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		.2032			12 V	ROHS COMPLIANT
SKRMAAE010	Alps Alpine	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	SHARP STEM		REFLOW					1	0 deg	250VAC		500000 Cycle(s)		100000000 ohm	1X1	TR		4.4958 mm	4.4958 inch				1.57 N			.4064 mm	0.05A@12VDC	85 Cel			-30 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		.127			12 V	ROHS COMPLIANT, TAPE AND REEL
434331013822	Wurth Elektronik	KEYPAD SWITCH	SURFACE MOUNT-RIGHT ANGLE	SPST	STEM		REFLOW	SILVER	WHITE	STAINLESS STEEL	BLACK	1		250VAC	COPPER ALLOY	100000 Cycle(s)		100000000 ohm	1X1	TR	10 ms	3.5 mm	2.9 inch				2.94 N	POLYAMIDE	SILVER	1.35 mm	.05A@12VDC	85 Cel		STAINLESS STEEL	-40 Cel		Silver (Ag)	MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.2	STAINLESS STEEL		12 V			e4		POLYAMIDE
ADTSM31NV	Apem Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	STEM			SILVER	BROWN	STAINLESS STEEL	BLACK	1		250VAC	BRASS	50000 Cycle(s)		100000000 ohm	1X1	BAG		6 mm	3.51 inch				2.06 N		SILVER	3.5 mm	.05A@12VDC	70 Cel		STAINLESS STEEL	-25 Cel	.031 inch	Silver (Ag)	MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		.254	STAINLESS STEEL		12 V			e4
B3F-1052	Omron	KEYPAD SWITCH	THROUGH HOLE-STRAIGHT	SPST	PROJECTED PLUNGER TYPE	OFF-(ON)		SILVER	YELLOW			1	0 deg	500VAC		300000 Cycle(s)		100000000 ohm	1X1	BAG; BULK	5 ms	6 mm	6 inch	0 inch		BREAK-BEFORE-MAKE	1.96 N		SILVER	3.4 mm	.05A@24VDC	70 Cel			-25 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm				4	24 V	BAG PACKAGING			.138 inch
EVPADK04K	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	10 ms	10.15 mm	9.8 inch				4.8 N			3.2 mm	.05A@12VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.05 A	SOLDER	EVPAD						12 V			e4
EVQQ2W02W	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		ON-OFF	REFLOW					1				200000 Cycle(s)		100000000 ohm	1X1	BOX; TAPE AND REEL	10 ms	6.5 mm	6 inch			SNAP ACTION	2.6 N			1.8 mm	.02A@15VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER		100 mohm					15 V			e4
FSM2JSMATR	TE Connectivity	KEYPAD SWITCH	PANEL MOUNT	SPST	PUSHBUTTON	OFF-(ON)		SILVER	GRAY	POLYAMIDE	BROWN	1	0 deg	500VAC	COPPER ALLOY	100000 Cycle(s)		100000000 ohm	1X1	TR		6 mm	6 inch		MOLDED		1.568 N	POLYPHENYLENE SULPHIDE	SILVER OVER NICKEL	3.6 mm	.05A@12VDC	85 Cel	.05 A	COPPER ALLOY	-20 Cel	.028 inch	Silver (Ag)	MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		2.032	COPPER ALLOY		24 V	ROHS AND ELV COMPLIANT		e4		POLYPHENYLENE SULPHIDE
KXT211LHS	C & K Components	KEYPAD SWITCH
PTS636SL43SMTRLFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST			REFLOW		BLACK			1		250VAC		50000 Cycle(s)		100000000 ohm	1X1	TR, 13 INCH	10 ms	6 mm	3.5 inch		IP40		1.77 N			3.3 mm	0.05A@12VDC	90 Cel			-40 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.25			12 V
PTS645VL312LFS	C & K Components	KEYPAD SWITCH	THROUGH HOLE-RIGHT ANGLE	SPST	ROUND TYPE							1		250VAC		100000 Cycle(s)		100000000000 ohm	1X1	BULK		7.5 mm	6.2 inch				1.27 N				0.05A@12VDC	60 Cel			-20 Cel		SILVER	MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm				4	12 V			e4	.156 inch
PTS820J15MPSMTRLFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST			REFLOW					1		100VAC		200000 Cycle(s)		100000000 ohm	1X1	TR, 13 INCH	10 ms	3.9 mm	2.9 inch				2.06 N			1.5 mm		85 Cel			-40 Cel		SILVER	MOMENTARY	.05 A	SOLDER		100 mohm		0.3			12 V			e4
3.14.100.501/0000	Rafi & Kg	KEYBOARD	THROUGH HOLE-STRAIGHT	SPST	KEYPAD							1				1000000 Cycle(s)		1000000000 ohm	1X1		5 ms	15 mm	15 inch			SNAP ACTION	3 N			4.8 mm	.1A@42VDC	70 Cel			-25 Cel		Pure Tin (Sn) - with Nickel (Ni) barrier	MOMENTARY	.1 A	SOLDER		100 mohm		.508			42 V
3CSH9R	Apem Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	PLUNGER TYPE			SILVER		POLYPHENYLENE SULPHIDE		1						10000000 ohm	1X1	TR, 13 INCH	.5 ms	10 mm	10 inch		IP67		3.5 N		SILVER OVER NICKEL	6.4 mm	0.05A@24VDC	160 Cel		STAINLESS STEEL	-40 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		30 mohm		1	COPPER TIN ALLOY		24 V					POLYPHENYLENE SULPHIDE
434113025826	Wurth Elektronik	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	STEM	ON-OFF	REFLOW	SILVER	WHITE	STAINLESS STEEL	BLACK	1		250VAC	COPPER ALLOY	30000 Cycle(s)		100000000 ohm	1X1	TAPE AND REEL	10 ms	6 mm	3.8 inch				3.24 N	LIQUID CRYSTAL POLYMER	SILVER	1.7 mm	.05A@12VDC	85 Cel		STAINLESS STEEL	-40 Cel	.031 inch		MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.25	STAINLESS STEEL		12 V					LIQUID CRYSTAL POLYMER
5GTH920Q	Apem Components	KEYPAD SWITCH	THROUGH HOLE-STRAIGHT	SPST			HAND/WAVE	SILVER		POLYPHENYLENE SULPHIDE		1			COPPER TIN ALLOY	10000000 Cycle(s)		10000000 ohm	1X1	BOX; TUBE	2 ms	10 mm	10 inch		IP67		2 N	POLYPHENYLENE SULPHIDE	SILVER	6.4 mm	0.05A@24VDC	160 Cel		STAINLESS STEEL	-40 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		30 mohm		1	COPPER TIN ALLOY	4	24 V	STANDARD: MIL-PRF-28855H			.157 inch	POLYPHENYLENE SULPHIDE
7914J-1-050E	Bourns	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	PUSHBUTTON	N.O.-N.C.		GOLD		STAINLESS STEEL		1	0 deg	250VAC	PHOSPHOR BRONZE			100000000 ohm	1X1	TAPE AND REEL; TUBE		4.5 mm	4.5 inch	0 inch		SNAP ACTION	3.9 N	THERMOPLASTIC	GOLD	2.54 mm	.1A@16VDC	125 Cel	.1 A	STAINLESS STEEL	-55 Cel	.102 inch	Nickel/Palladium/Gold (Ni/Pd/Au)	MOMENTARY	.1 A	SOLDER		100 mohm	0 inch		STAINLESS STEEL		16 V	500 PCS/REEL PACKAGING	16 V	e4		SILICON RUBBER
DTSM-32N-V-B	Diptronics Manufacturing	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST	PUSHBUTTON		HAND	SILVER	BROWN	STEEL		1	0 deg	250VAC	BRASS	50000 Cycle(s)		100000000 ohm	1X1	TUBE		6 mm	3.5 inch				2.06 N	THERMOPLASTIC	SILVER	3.5 mm	.05A@12VDC	70 Cel		STAINLESS STEEL	-25 Cel	.059 inch		MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm			STAINLESS STEEL		12 V	UL				THERMOPLASTIC
EVQPC205K	Panasonic	KEYPAD SWITCH	THROUGH HOLE-RIGHT ANGLE	SPST								1				100000 Cycle(s)			1X1	BOX; TAPE AND REEL	8 ms	7.5 mm	6.95 inch				2.1 N			7.1 mm	.02A@15VDC	70 Cel			-20 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER							15 V			e4
EVQPLDA15	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST								1				500000 Cycle(s)			1X1	BOX; TAPE AND REEL	8 ms	4.9 mm	4.9 inch				1.5 N			.8 mm	.02A@15VDC	70 Cel			-20 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER							15 V			e4
EVQQ2M01W	Panasonic	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST		ON-OFF	REFLOW					1				1000000 Cycle(s)		100000000 ohm	1X1	BOX; TAPE AND REEL	10 ms	6.5 mm	6 inch			SNAP ACTION	1.3 N			1.8 mm	.02A@15VDC	85 Cel			-40 Cel		GOLD/SILVER	MOMENTARY	.02 A	SOLDER		100 mohm					15 V			e4
FSM6JSMA	TE Connectivity	KEYPAD SWITCH	PANEL MOUNT	SPST				SILVER	BLACK	POLYAMIDE	BROWN	1				100000 Cycle(s)			1X1	BULK		6 mm	6 inch				1.568 N			3.6 mm	.05A@12VDC	85 Cel	.05 A		-20 Cel	.134 inch		MOMENTARY-TACTILE	.05 A	SOLDER					COPPER ALLOY		24 V					POLYAMIDE
KSEM31GLFS	C & K Components	KEYPAD SWITCH	SURFACE MOUNT-STRAIGHT	SPST			REFLOW					1		250VAC		300000 Cycle(s)	1VA@32VDC	1000000000 ohm	1X1	TR, 13 INCH	1 ms	6.25 mm	6.2 inch		IP67		2.2 N			2.9 mm	.05A@32VDC	85 Cel			-40 Cel	.008 inch		MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.3			32 V	LOW PROFILE
SKHHLMA010	Alps Alpine	KEYPAD SWITCH	THROUGH HOLE-RIGHT ANGLE	SPST	STEM				BLACK			1		250VAC		1000000 Cycle(s)		100000000 ohm	1X1	BOX; BULK		7.5 mm	6.55 inch				.98 N			7.4 mm	0.05A@12VDC	90 Cel			-40 Cel			MOMENTARY-TACTILE	.05 A	SOLDER		100 mohm		0.25		4	12 V	TACT SWITCH			.138 inch

Keypad Switches

Keypad switches are electronic switches that use a matrix of buttons or keys to input data or control functions. They are commonly used in consumer electronics, industrial control systems, and medical devices.

Keypad switches typically consist of a set of buttons or keys arranged in a matrix pattern, which are connected to a printed circuit board (PCB). When a button or key is pressed, it completes a circuit on the PCB, sending a signal to a microcontroller or other control system.

Keypad switches come in different configurations, including membrane keypads, elastomeric keypads, and mechanical keypads. Membrane keypads use a thin, flexible membrane to activate the switch, while elastomeric keypads use a rubber or silicone dome to provide tactile feedback. Mechanical keypads use a physical switch mechanism, similar to a keyboard.