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Bourns 99A2AB28A10R51L Single-Turn Panel Control
The Bourns 99A2A-B28-A10/R51L is a versatile 5/8” square single-turn panel control designed for precise adjustment in a wide range of industrial applications. It offers a variety of pin-out configurations and provides virtual electrical circuit isolation. The control is available with sealed models for board wash and features both metal and plastic shaft options to suit different mounting requirements. With a robust mechanical design and a wide operating temperature range, this potentiometer ensures reliable performance in demanding environments. RoHS compliant versions are available for environmentally conscious designs.
Bourns 99A2AB28A10R51L Single-Turn Panel Control Specifications:
- Standard Resistance Range: 1 K ohms to 1 megohm (Linear Tapers A, B, E, & H), 100 ohms to 1 megohm (Linear Tapers A & H), 1 K ohms to 1 megohm (Audio Tapers C, D, F, G, S, & T), 1 K ohms to 1 megohm (Audio Tapers C & F)
- Total Resistance Tolerance: 10 % or 20 % (Cermet Element), 5% or 10% (Conductive Plastic Element)
- Independent Linearity: ±5 % (Cermet Element), ±5 % (Conductive Plastic Element)
- Absolute Minimum Resistance: 2 ohms maximum
- Effective Electrical Angle: 240 ° ± 5 ° (Linear tapers), 225 ° ± 5 ° (Audio tapers)
- Contact Resistance Variation: ±1 % (Cermet Element), ±1 % or 3 ohms (whichever is greater) (Conductive Plastic Element)
- Dielectric Withstanding Voltage: 1,500 VAC minimum (Sea Level), 500 VAC minimum (70,000 Feet)
- Insulation Resistance: 1,000 megohms minimum
- Power Rating: +70 °C Single Section Assembly (Linear tapers) 0.5 watt, +70 °C Single Section Assembly (Audio tapers) 0.25 watt, +70 °C Multiple Section Assembly (Linear tapers) 0.5 watt/section, +70 °C Multiple Section Assembly (Audio tapers) 0.25 watt/section, +125 °C 0 watt
- Theoretical Resolution: Essentially inf nite
- Operating Temperature Range: -40 °C to +125 °C
- Storage Temperature Range: -55 °C to +125 °C
- Temperature Coefficient: ±1,000 ppm/°C (Cermet Element), ±150 ppm/°C (Conductive Plastic Element)
- Vibration Resistance: 15 G
- Shock Resistance: 30 G
- Load Life: 1,000 hours
- Rotational Life: 100,000 cycles
- Moisture Resistance: ±10 % TRS maximum (Linear tapers), ±5 % TRS maximum (All tapers), ±20 % TRS maximum (Audio tapers)
- IP Rating: IP 65 (Model 96), IP 40 (All Others)
- Stop Strength: 45.19 N-cm (1/4” D shaft), 33.89 N-cm (1/8” D shaft)
- Mechanical Angle: 300 ° ±5 °
- Torque Starting: 0.3 max. above average running torque
- Running Torque: 0.21 to 1.06 N-cm (A,D & R Bushings), 0.14 to 1.06 N-cm (C & U Bushings)
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Frequently Asked Questions
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How do I troubleshoot issues or seek technical support for part 99A2AB28A10R51L?
You can download the 99A2AB28A10R51L datasheet or visit the Bourns website for support.
Who is the manufacturer of 99A2AB28A10R51L?
Bourns