The Bourns PEC11R-4220F-S0024 is a 12mm incremental rotary encoder, suitable for control interfaces where rotation must be detected while also providing an integrated push-button function.

This model belongs to the Bourns PEC11R series and uses a 2-bit quadrature code output, allowing the circuit to detect direction of rotation and generated pulses. This version provides 24 pulses per 360-degree rotation with 24 detents, giving defined tactile feedback during operation.

The PEC11R-4220F-S0024 reference identifies a version with horizontal / rear-facing PCB terminals, F metal flatted shaft, 20mm shaft length and integrated S momentary push switch. The shaft has a listed 6mm diameter, with M7 x 0.75 threaded metal bushing, and is supplied with mounting nut and flat washer.

The integrated switch is a Push ON Momentary SPST type, allowing the encoder to be used as a menu selector, confirmation key, enter function, mute control or additional command depending on the circuit.

It is suitable for electronic equipment, audio, radios, musical instrumentation, communications equipment, control panels, DIY projects, synthesizers, user interfaces, equipment repair and replacement of compatible encoders.

Main features

Incremental rotary encoder
Manufacturer / brand: Bourns
Series: PEC11R
Reference: PEC11R-4220F-S0024
Component type: mechanical incremental rotary encoder
Format: 12mm
Output: 2-bit quadrature code
Terminal configuration: horizontal / rear-facing PCB terminals
Detents: 24 detents
Resolution: 24 pulses per 360-degree rotation
Shaft: metal flatted shaft
Shaft length: 20mm
Shaft diameter: 6mm
Shaft dimensions for L 20mm: LB 7mm, F 10mm
Bushing: M7 x 0.75 threaded metal bushing
Integrated switch: yes
Switch type: push momentary switch
Switch circuit: Push ON Momentary SPST
Encoder terminals: A, B and C common
Switch terminals: 1 and 2
Total terminals: 5, including encoder and switch
Mechanical angle: continuous 360 degrees
Electrical travel: continuous
Contact rating: 10mA at 5VDC
Insulation resistance: 100 megohm at 250VDC
Dielectric withstand voltage: 300VAC minimum at sea level
Contact bounce: 2.0ms maximum at 15RPM
Maximum operating speed: 60RPM
Operating temperature: -30°C to 70°C
Storage temperature: -40°C to 85°C
IP rating: IP40
Detent torque: 30 to 90gf.cm
Running torque: 10 to 70gf.cm
Maximum mounting torque: 10.2kgf.cm
Static shaft side load: 2.04kgf minimum
Weight: 5g maximum
Terminals: printed circuit board terminals
Wave soldering: 260°C maximum for 3 ± 1 seconds
Hand soldering: not recommended by manufacturer
Rotational life: 30000 cycles minimum
Switch life: 20000 cycles minimum
Switch actuation force: 610 ± 306gf
Switch travel: 0.5 ± 0.3mm
Switch contact resistance: 100 milliohm at 5VDC
Included hardware: one flat washer and one mounting nut
Compliance: RoHS, according to datasheet
Main application: rotary control interface with integrated push switch

Recommended applications

Volume control
Menu control
Tuning and frequency selection
Timer and parameter settings
Audio-visual equipment
Radios and communications equipment
Musical instrumentation
Electronic control panels
Human-machine interfaces
DIY projects and prototyping
Synthesizers, modules and controllers
Replacement of compatible encoders in electronic equipment
Repair of boards using equivalent PEC11R encoders

Important note

Before purchase, always confirm the complete reference, pulse count, detent count, shaft length, shaft style, presence of push switch, terminal orientation, pinout, mechanical dimensions, mounting type and compatibility with the original PCB.

The PEC11R-4220F-S0024 reference specifically corresponds to the version with horizontal / rear-facing PCB terminals, 24 detents, 20mm metal flatted shaft, momentary push switch and 24 pulses per revolution. It should not be confused with PEC11R versions with different shaft length, no switch, no detents, knurled shaft or different terminal orientation.

This component is sensitive to mechanical mounting and circuit layout. For optimum performance, the manufacturer recommends using noise reduction filters in the circuit. Handle and solder according to good electronics practice, respecting soldering conditions and avoiding excessive force on the shaft.

This item corresponds only to the Bourns PEC11R-4220F-S0024 encoder. Knob, PCB, cables, connectors, external components and additional accessories are not included unless expressly stated otherwise.