Bourns PRS11R 11mm Rotary Metal Shaft Potentiometers

Bourns PRS11R 11mm Rotary Metal Shaft Potentiometers feature a very small form factor, offer an optional momentary switch, a flatted shaft style, and a -20°C to +70°C operating temperature range. Variations in the PRS11R potentiometers include horizontal/rear-facing or vertical/side-facing orientations, shaft lengths (15mm, 20mm, or 25mm), switch configuration (no switch or push momentary switch), and resistance tapers. The Bourns PRS11R 11mm Rotary Metal Shaft Potentiometers are designed for use in professional audio and lighting applications, low/medium risk medical* and laboratory equipment, industrial automation controls, and other applications where a reliable potentiometer is required.

*Bourns® products have not been designed for and are not intended for use in “lifesaving,” “life-critical”, or “life-sustaining” applications nor any other applications where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice: www.bourns.com/docs/legal/disclaimer.pdf.

Features

THT type mounting
15,000 rotational cycle rating
-20°C to +70°C operating temperature range
Flatted shaft option
PC pin layout for board mount

Horizontal or vertical orientation options
Optional momentary switch
Audio and linear tapers
RoHS compliant

Applications

Professional audio equipment
Professional lighting consoles
Consumer white goods
Low/medium risk medical and diagnostic equipment

Test and measurement equipment
Communications equipment
Laboratory equipment
Industrial automation controls

Specifications

Electrical
- 5kΩ to 250kΩ standard resistance range
- Standard resistance tolerance
  - R < 250kΩ ±20%
  - R = 250kΩ ±30%
- 0.4% maximum residual resistance
- 100MΩ minimum insulation resistance ate 250V_DC
- 300V_AC minimum dielectric withstanding voltage (at sea level)
- 0.05W power rating
- 100mV maximum sliding noise
Environmental
- Temperature ranges
  - -20°C to +70°C (-4°F to +158°F) operating
  - -40°C to +70°C (-40°F to +158°F) storage
- Soldering
  - +260°C wave soldering for 3 seconds
  - +350°C manual soldering for 3 seconds
- IP44 rating

Mechanical
- 300°±10° maximum mechanical angle
- Torque
  - 20gf-cm to 250gf-cm running (start torque ignored)
  - 3kgf-cm maximum running
  - 3kgf-cm minimum stop strength
- 15,000 minimum rotational life cycles
- 20,000 minimum switch life cycles
- 1x flat washer and 1x hex nut supplied with threaded bushing versions
Switch
- Push ON Momentary SPST switch type
- 10mA resistive load power rating at 5V_DC
- 0.5mm ±0.4mm switch travel
- 600gf ±300gf switch actuation force
- 100mΩ maximum contact resistance