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Rotary Encoders

Alpha (Taiwan) Rotary Encoders are offered with vertical or horizontal terminal types, with or without a push switch, and with or without a bushing thread. The 11mm versions feature a switch with a self-return function. The 12mm and 16mm variants offer an incremental output signal encoder. The 20mm encoders are programmed with 4-bit coding for various digital circuits. Alpha (Taiwan) Rotary Encoders deliver 20,000 to 50,000 rotation life cycles and have an operating temperature range of -10°C to +70°C or +85°C. Typical applications include audio, home appliances, precision apparatus, automotive, communication, and industrial control.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Mounting Style	Product	Type	Resolution	Technology	Number of Detents	Number of Channels	Termination Style	Output Type	Shaft Diameter	Shaft Type	With Switch	Operating Supply Voltage	Life	Packaging
	Encoders 16MM ROTARY ENCODER RE160F-40E3-20A-24P-003 Alpha (Taiwan) 1: $4.10 862In Stock	Mfr. Part # RE160F-40E3-20A-24P-003 Mouser Part # 318-ENC160F-24P	Alpha (Taiwan)	Encoders 16MM ROTARY ENCODER Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	862In Stock	$4.10 $3.65 $3.20 $2.75 View $2.36 $1.97 $1.78 $1.65 Quote	Min.: 1 Mult.: 1			PCB Mount	Magnetic Encoders	Incremental	24 PPR	Rotary	24 Detent	2 Channel	PC Pin	Quadrature	6 mm	D / Flatted	Without Switch	5 VDC	50000 Cycles
	Encoders 12mm INSULATED SHAFT ENCDR W/SWITCH RE130F-41-175F-12P Alpha (Taiwan) 1: $4.24 16In Stock 1,000Expected 1/20/2027	Mfr. Part # RE130F-41-175F-12P Mouser Part # 318-ENC130175F-12PS	Alpha (Taiwan)	Encoders 12mm INSULATED SHAFT ENCDR W/SWITCH Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	16In Stock 1,000Expected 1/20/2027	$4.24 $3.79 $3.34 $2.93 View $2.54 $2.15 $1.95 $1.80 Quote	Min.: 1 Mult.: 1			PCB Mount	Magnetic Encoders	Incremental	12 PPR	Insulated	12 Detent	2 Channel	PC Pin	Quadrature	6 mm	D / Flatted	Pushbutton Switch	5 VDC	20000 Cycles	Tray
	Encoders 12mm INSULATED SHAFT RE130F-40-20F-12P Alpha (Taiwan) 1: $2.49 771In Stock	Mfr. Part # RE130F-40-20F-12P Mouser Part # 318-ENC13020F-12P	Alpha (Taiwan)	Encoders 12mm INSULATED SHAFT Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	771In Stock	$2.49 $2.07 $1.83 $1.64 View $1.51 $1.28 $1.10 $1.04 $0.99	Min.: 1 Mult.: 1			PCB Mount	Magnetic Encoders	Incremental	12 PPR	Insulated	12 Detent	2 Channel	PC Pin	Quadrature	6 mm	D / Flatted	Without Switch	5 VDC	20000 Cycles	Tray
	Encoders 12mm INSULATED SHAFT RE120WF-41-XXX-12P Alpha (Taiwan) 1: $4.10 1,000Expected 10/28/2026	Mfr. Part # RE120WF-41-XXX-12P Mouser Part # 318-ENC13015F-12P	Alpha (Taiwan)	Encoders 12mm INSULATED SHAFT Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	1,000Expected 10/28/2026	$4.10 $3.65 $3.20 $2.75 View $2.36 $1.97 $1.96	Min.: 1 Mult.: 1			PCB Mount	Magnetic Encoders	Incremental	12 PPR	Insulated	12 Detent	2 Channel	PC Pin	Quadrature	6 mm	D / Flatted	Without Switch	5 VDC	20000 Cycles	Tray
	Encoders 11MM ROTARY ENCODER RE111F-20B3-20F-20P-111 Alpha (Taiwan) 1,000: $2.43 Non-Stocked	Mfr. Part # RE111F-20B3-20F-20P-111 Mouser Part # 318-ENC111F-20P	Alpha (Taiwan)	Encoders 11MM ROTARY ENCODER Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	Non-Stocked	$2.43	Min.: 1,000 Mult.: 1,000				Magnetic Encoders		20 PPR		20 Detent					D / Flatted	Without Switch
	Encoders 11MM ENCDR W/SWTCH RE111F-21B3-20F-20P-111 Alpha (Taiwan) 1,000: $3.60 Non-Stocked	Mfr. Part # RE111F-21B3-20F-20P-111 Mouser Part # 318-ENC111F-20PS	Alpha (Taiwan)	Encoders 11MM ENCDR W/SWTCH Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	Non-Stocked	$3.60	Min.: 1,000 Mult.: 1,000				Magnetic Encoders		20 PPR		20 Detent					D / Flatted	With Switch
	Encoders 20mm BINARY CODED ROTARY ENCODER RE2001F-40E2-20F-4B-009 Alpha (Taiwan) 1,000: $2.77 Non-Stocked	Mfr. Part # RE2001F-40E2-20F-4B-009 Mouser Part # 318-ENC200120F-4B	Alpha (Taiwan)	Encoders 20mm BINARY CODED ROTARY ENCODER Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	Non-Stocked	$2.77	Min.: 1,000 Mult.: 1,000				Magnetic Encoders				16 Detent				1/4 in	Round / Plain	Without Switch	10 VDC		Tray
	Encoders 20mm GRAY CODED ROTARY ENCODER RE200F-40E2-155F-4G-007 Alpha (Taiwan) 1,000: $2.77 Non-Stocked	Mfr. Part # RE200F-40E2-155F-4G-007 Mouser Part # 318-ENC200155F-4G	Alpha (Taiwan)	Encoders 20mm GRAY CODED ROTARY ENCODER Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	Non-Stocked	$2.77	Min.: 1,000 Mult.: 1,000			PCB Mount	Magnetic Encoders	Incremental					Through Hole		1/8 in	Round / Plain	Without Switch			Tray
	Encoders 20mm BINARY CODED ROTARY ENCODER RE200F-20E2-20F-4B-007 Alpha (Taiwan) 1,000: $2.77 Non-Stocked	Mfr. Part # RE200F-20E2-20F-4B-007 Mouser Part # 318-ENC20020F-4B	Alpha (Taiwan)	Encoders 20mm BINARY CODED ROTARY ENCODER Learn More about Alpha (Taiwan) alpha taiwan rotary encoders	Datasheet	Non-Stocked	$2.77	Min.: 1,000 Mult.: 1,000			PCB Mount	Magnetic Encoders	Incremental					Through Hole		1/8 in	Round / Plain	Without Switch			Tray