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Versatile Amphenol PT15LH05-251A2020-S potentiometer designed for control relays and test equipment

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Versatile Amphenol PT15LH05-251A2020-S potentiometer designed for control relays and test equipment

Tolerance : ±20%

Temperature Coefficient : ±300ppm/℃

Power(Watts) : 250mW

Number of Turns : 1

Resistance : 250Ω

Description : 250Ω ±20% 250mW Through Hole Potentiometers, Variable Resistors

Mfr. Part # : PT15LH05-251A2020-S

Model Number : PT15LH05-251A2020-S

Package : Through Hole

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Product Overview

The Piher PT-15 and PTC-15 are 15-mm through-hole potentiometers designed for applications requiring frequent adjustment. Featuring a shaftless design for versatile engagement mechanisms, these potentiometers offer precise control over variable outputs such as frequency, motor speed, and volume. They are ideal for appliance program selection, thermostat adjustment, timer and control relays, consumer electronics, power tool controls, and test and measurement equipment. Key advantages include excellent linearity (up to 3%), a choice of carbon or cermet resistive elements, up to 38 mechanical detents for tactile feedback, and up to 100,000 life cycles. The series also boasts IP54 protection and availability in magazine packaging for automatic insertion.

Product Attributes

  • Brand: Piher
  • Product Series: PT-15 / PTC-15
  • Type: Through-hole potentiometer
  • Resistive Element: Carbon or Cermet
  • Substrate: Polyester / Alumina
  • Flame Retardant: Available (UL 94V-0)
  • Protection: IP54
  • Packaging: Magazine packaging available
  • Origin: Spain (implied by contact details)

Technical Specifications

Specification PT-15 PTC-15 Notes
Taper Lin, Log, Alog Lin, Log, Alog Others available on request
Range of values 100 Rn 5M (Lin) 1K Rn 5M (Log, Alog) Decad. 1.0 - 2.0 - 2.2 - 2.5 - 4.7 - 5.0
Tolerance 20% (100 Rn 1M) 30% (1M < Rn 5M)
Max. Voltage 250 VDC (Lin) 125 VDC (Log, Alog)
Nominal power @ 50C 0.25 W (Lin) 0.12 W (Log, Alog)
Nominal power @ 70C 0.50 W (Lin) 0.25 W (Log, Alog)
Residual resistance 0.5% Rn (5 min.) 0.5% Rn (5 min.)
Equivalent noise resistance 3% Rn (3 min.) 3% Rn (3 min.)
Operating temperature -25C to +70C -40C to +90C PT-15 up to 85C depending on application; +120C upon request
Mechanical rotation angle 265 5 265 5 240 5 available on request
Electrical rotation angle 240 20 240 20
Torque 0.5 to 2.5 Ncm 0.5 to 2.5 Ncm
Rotational Stop > 10 Ncm > 10 Ncm
Life Cycles Up to 100k cycles Up to 10k cycles
Detents Up to 38 Up to 38
Wiper position Initial, 50%, Fully clockwise Initial, 50%, Fully clockwise
Switch SPDT available SPDT available
Low torque version Available Available
Electrical life (1000h @ 50C, 0.15W) 5% R n/a
Electrical life (1000h @ 70C, 0.33W) n/a 2% R
Mechanical life (1000 cycles) 3% R (Rn < 1M) 2% R
Temperature coefficient 300 ppm/C (Rn < 100K) n/a For -25C to +70C
Temperature coefficient n/a 100 ppm/C (Rn < 100K) For -40C to +90C
Thermal cycling (16h @ 85C / 2h @ -25C) 2.5% R n/a
Thermal cycling (16h @ 90C / 2h @ -40C) n/a 2% R
Damp heat (500h @ 40C, 95% RH) 5% R 2% R
Vibration (2h each plane @ 10Hz - 55Hz) 2% R 2% R
Storage (6 month @ 23C 2C, 50% RH) 2.5% R 2% R

2411220430_Amphenol-PT15LH05-251A2020-S_C6738036.pdf


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