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, they accommodate various engagement mechanisms like custom shafts, motor controls, or human interface adjustments. These potentiometers are suitable for controlling variable outputs such as frequency, motor speed, or volume. 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 extended life cycles of up to 100,000 operations. They offer IP54 protection and are available with magazine packaging for automatic insertion. Applications span appliance program selection, thermostat adjustment, timer and control relays, consumer electronics, power tool controls, and test and measurement equipment.
Product Attributes
- Brand: Piher
- Resistive Element: Carbon or Cermet
- Substrate: Polyester / Alumina
- Plastic Material: Self-extinguishable (UL 94V-0) available
- Protection: IP54
- Certifications: ISO 14001 (BUREAU VERITAS)
Technical Specifications
| Specification | PT-15 (Carbon) | PTC-15 (Cermet) |
|---|---|---|
| Taper | Lin, Log, Alog | Lin, Log, Alog |
| Range of values | 100 Rn 5M | 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) | 20% (100 Rn 1M), 30% (1M < Rn 5M) |
| Max. Voltage | 250 VDC (Lin), 125 VDC (Log, Alog) | 250 VDC (Lin), 125 VDC (Log, Alog) |
| Nominal Power @ 50C (122F) | 0.25 W (Lin), 0.12 W (Log, Alog) | 0.25 W (Lin), 0.12 W (Log, Alog) |
| Nominal Power @ 70C (158F) | 0.50 W (Lin), 0.25 W (Log, Alog) | 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 (-13F to + 158F) | -40C to +90C (-40F to + 194F) |
| Mechanical rotation angle | 265 5 | 265 5 |
| Electrical rotation angle | 240 20 | 240 20 |
| Torque | 0.5 to 2.5 Ncm (0.7 to 3.4 in-oz) | 0.5 to 2.5 Ncm (0.7 to 3.4 in-oz) |
| Rotational Stop | > 10 Ncm (>14 in-oz) | > 10 Ncm (>14 in-oz) |
| Life | Up to 100k cycles | Up to 10k cycles |
| Electrical life test (1000h @ 50C; 0.15W) | 5% R | n/a |
| Electrical life test (1000h @ 70C; 0.33W) | n/a | 2% R |
| Mechanical life test (1000 cycles @ 10 to 15 cpm) | 3 % R (Rn < 1M ) | 2% R |
| Temperature coefficient | 300 ppm/C (Rn < 100K) for -25C to +70C | 100 ppm/C (Rn < 100K) for -40C to +90C |
| Thermal cycling test (16h @ 85C & 2h @ -25C) | 2.5% R | n/a |
| Thermal cycling test (16h @ 90C & 2h @ -40C) | n/a | 2% R |
| Damp heat test (500h @ 40C, 95% RH) | 5% R | 2% R |
| Vibration test (2h each plane @ 10Hz - 55Hz) | 2% R | 2% R |
| Storage (6 month @ 23C 2C, 50% RH) | 2.5% R | 2% R |
| Standard test conditions | Temperature: 23C 2C, 45% to 70% RH | Temperature: 23C 2C, 45% to 70% RH |
| Switch versions available | SPDT switch | SPDT switch |
| Detents | Up to 38 | Up to 38 |
| Packaging | Magazine packaging available | Magazine packaging available |
| Wiper position | Initial, 50%, Fully Clockwise | Initial, 50%, Fully Clockwise |
| Shaft/Knob options | Loose and assembled | Loose and assembled |
| Tapers | Linear, logarithmic, antilogarithmic | Linear, logarithmic, antilogarithmic |
| Non-flammable option | Available (UL 94V-0) | Standard |
| Low torque version | Available | Available |
| Mounting methods | Horizontal adjust / vertical mounting (H01, H02, H05, H06, H10, H15, H25) and Vertical adjust / horizontal mounting (V02, V12, V15, V17, V18, V20, V21, V22, V23, V24, V25) | |
| Available Packaging Options | Bulk, Magazine (35 units), Embossed Tape (for specific mounting types) | |
Others available on request. Up to 85C depending on application. +120C/+248F upon request. 240 5 available upon request. Endless rotation available: ST-15. Standard mechanical life is 500 cycles. Long life versions available upon request.
2411220430_Amphenol-PT15LV18-355A3030-S_C6148867.pdf
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