EC28A/EC28C Ring-Type Encoders

Alps Alpine EC28A and EC28C Ring-Type Encoders are low-profile 28mm encoders. EC28A/EC28C is available with 18 or 30 detents and 15 or 18 pulses. The encoders have a current rating of 10mA, 5VDC, an operating life of 50,000 cycles, and an operating temperature range of -40°C to +85°C (EC28A) or -40 to +90°C (EC28C). A smooth click sensation during rotation gives an excellent feel to the encoders. Alps Alpine EC28A/EC28C Series Ring Type Encoders applications include automotive HVAC and audio systems and major home appliances.

Results: 7
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Description Datasheet Availability Pricing (NOK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Product
Type
Resolution
Technology
Number of Detents
Number of Channels
Termination Style
Output Type
Shaft Type
With Switch
Operating Supply Voltage
Life
Packaging
Alps Alpine Encoders 18Pulses / 18Detent / 20mNm / 15mm
Datasheet
684In Stock
Min.: 1
Mult.: 1

EC28A PCB Mount Ring Encoders Incremental 18 PPR Mechanical 18 Detent 2 Channel PC Pin Quadrature Ring Without Switch 5 VDC 50000 Cycle Tray
Alps Alpine Encoders 5 Volts Through Hole
Datasheet
776In Stock
Min.: 1
Mult.: 1

EC28A PCB Mount Ring Encoders Incremental 15 PPR Mechanical 30 Detent 2 Channel PC Pin Quadrature Ring Without Switch 5 VDC 50000 Cycle Tray
Alps Alpine Encoders 18Pulses / 18Detent / 12mNm / 15mm
Datasheet
274In Stock
Min.: 1
Mult.: 1

EC28A PCB Mount Ring Encoders Incremental 18 PPR Mechanical 18 Detent 2 Channel PC Pin Quadrature Ring Without Switch 5 VDC 50000 Cycle Tray

Alps Alpine Encoders 15Pulses / 30Detent / 16mNm (After Reflow) / 15mm / Reflow
Datasheet
307In Stock
Min.: 1
Mult.: 1

EC28C PCB Mount Ring Encoders Incremental 15 PPR Mechanical 30 Detent 2 Channel PC Pin Quadrature Ring Without Switch 5 VDC 50000 Cycle Tray
Alps Alpine Encoders 5 Volts Through Hole
Datasheet
71In Stock
Min.: 1
Mult.: 1

EC28A PCB Mount Magnetic Encoders 15 PPR 30 Detent Through Hole 5 VDC Tray
Alps Alpine Encoders 5 Volts Through Hole
Datasheet
5In Stock
400Expected 4/16/2026
Min.: 1
Mult.: 1

EC28A PCB Mount Ring Encoders Incremental 15 PPR Mechanical 30 Detent 2 Channel PC Pin Quadrature Ring Without Switch 5 VDC 50000 Cycle Tray
Alps Alpine Encoders 15Pulses / 30Detent / 20mNm / 25mm (Long shaft)
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

EC28A 30 Detent Tray