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Bourns 51CADE28A20L Sealed Control Rotary Potentiometer

The Bourns 51CAD-E28-A20L is a sealed 1/2” square control rotary potentiometer designed for demanding applications requiring precise control and environmental protection. It offers both linear and audio tapers, along with PC board and bushing mount options for versatile integration. The sealed construction ensures resistance to moisture and contaminants, making it ideal for harsh environments. This potentiometer is commonly used in industrial equipment, audio systems, and other applications where reliable and accurate control is essential.

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Source:DigiKey
Part No:51CAD-E28-A20L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $6.34944
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Part No:51CAD-E28-A20L
Stock:0
Inv Date:05-29-2026
Price: Unit price: $6.04
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Part No:51CAD-E28-A20L
Stock:260
Inv Date:05-28-2026
Price: Unit price: $1.79
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Part No:51CAD-E28-A20L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $10.66
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Part No:51CAD-E28-A20L
Stock:0
Inv Date:05-28-2026
Price: Unit price: $10.66
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Source:Arrow EU
Part No:51CAD-E28-A20L
Stock:45
Inv Date:05-29-2026
Price: N/A
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Bourns 51CADE28A20L Sealed Control Rotary Potentiometer Specifications:

  • Standard Resistance Range Linear: 1 K ohms to 1 megohm
  • Standard Resistance Range Audio: 1 K ohms to 1 megohm
  • Total Resistance Tolerance Linear Tapers: ±10 % or ±20 %
  • Total Resistance Tolerance Audio Tapers: ±10 % or ±20 %
  • Independent Linearity: ±5 %
  • Absolute Minimum Resistance: 2 ohms maximum
  • Effective Electrical Angle: 270 ° ±5 °
  • Contact Resistance Variation: 2 %
  • Dielectric Withstanding Voltage Sea Level: 1,500 VAC minimum
  • Dielectric Withstanding Voltage 70000: 500 VAC minimum
  • Insulation Resistance: 1,000 megohms minimum
  • Power Rating At 70 °C Linear Tapers: 0.5 watt
  • Power Rating At 70 °C Audio Tapers: 0.25 watt
  • Theoretical Resolution: Essentially inf nite
  • Operating Temperature Range: +1 °C to +125 °C
  • Storage Temperature Range: -55 °C to +125 °C
  • Temperature Coefficient Over Storage Temperature Range: ±1,000 ppm/°C
  • Vibration Single Section: 15 G
  • Total Resistance Shift Vibration: ±2 % maximum
  • Voltage Ratio Shift Vibration: ±5 % maximum
  • Shock Single Section: 30 G
  • Total Resistance Shift Shock: +2 % maximum
  • Voltage Ratio Shift Shock: ±5 % maximum
  • Load Life Total Resistance Shift: ±10 % TRS maximum
  • Rotational Life No Load: 50,000 cycles
  • Contact Resistance Variation @ 25,000 Cycles: ±2 %
  • Moisture Resistance Total Resistance Shift: ±10 % TRS
  • IP Rating: IP 64
  • Stop Strength: 56 N-cm (5 lb.-in.)
  • Mechanical Angle: 290 ° ±5 °
  • Starting Torque Dual Sections: +0.35 N-cm (+0.5 oz.-in.) maximum
  • Running Torque Single Section: 0.15 to 1.4 N-cm (0.2 to 2.0 oz.-in.)
  • Running Torque Dual Section: 0.35 to 1.8 N-cm (0.5 to 2.5 oz.-in.)
  • Mounting Torque on Bushing: 1.7 to 2.0 N-m (15 to 18 lb.-in.) maximum
  • Weight Single Section: 5.5 grams
  • Weight Additional Section: 3.0 grams
  • Terminals: PC pin or solder lug

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Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase 51CADE28A20L from an authorized Bourns distributor.

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You can download the 51CADE28A20L datasheet or visit the Bourns website for support.

Who is the manufacturer of 51CADE28A20L?

Bourns

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