Product Overview
The Piher PT-15 and PTC-15 are 15-mm carbon and cermet through-hole potentiometers designed for applications requiring frequent adjustment. Their shaftless design allows for versatile engagement mechanisms, including customized shafts, motor controls, or human interface adjustments. These potentiometers are ideal for controlling variable outputs such as frequency, motor speed, or volume. Key features include excellent linearity (up to 3%), up to 38 mechanical detents for tactile feedback, and up to 100,000 life cycles. They offer IP54 protection and are available in 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
- Series: PT-15 / PTC-15
- Resistive Element: Carbon or Cermet
- Substrate: Polyester / Alumina
- Flammability: Self-extinguishable plastic (UL 94V-0) available; PTC-15 is non-flammable by standard.
- Protection: IP54
- Packaging: Magazine packaging available for automatic insertion.
Technical Specifications
| Specification | PT-15 | PTC-15 |
| Taper | Lin, Log, Alog | Lin, Log, Alog |
| Range of values | Lin: 100 Rn 5M; Log, Alog: 1K Rn 5M | Lin: 100 Rn 5M; Log, Alog: 1K Rn 5M |
| Tolerance | 20% (100 Rn 1M); 30% (1M < Rn 5M) | 20% (100 Rn 1M); 30% (1M < Rn 5M) |
| Max. Voltage | 250 VDC | 125 VDC |
| Nominal power at 50C (122F) | Lin: 0.25 W; Log, Alog: 0.12 W | Lin: 0.25 W; Log, Alog: 0.12 W |
| Nominal power at 70C (158F) | Lin: 0.50 W; Log, Alog: 0.25 W | Lin: 0.50 W; Log, Alog: 0.25 W |
| 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 |
| 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 (cycles) | Up to 100k cycles | Up to 10k cycles |
| Electrical life (1000h at 50C; 0.15W) R (%) | 5% | n/a |
| Electrical life (1000h at 70C; 0.33W) R (%) | n/a | 2% |
| Mechanical life (1000 cycles) R (%) | 3% (Rn < 1M) | 2% (Rn < 1M) |
| Temperature coefficient R (%) | 300 ppm/C (Rn < 100K) | n/a |
| Temperature coefficient R (%) | n/a | 100 ppm/C (Rn < 100K) |
| Thermal cycling R (%) | 2.5% | n/a |
| Thermal cycling R (%) | n/a | 2% |
| Damp heat R (%) | 5% | 2% |
| Vibration R (%) | 2% | 2% |
| Storage R (%) | 2.5% | 2% |
Standard Configuration:
Life: 1,000 cycles
Cut track: no (PT-15) / n/a (PTC-15)
Detents: none
Packaging: bulk
Shaft/thumb wheel: none
Non-flammability: no (PT-15) / yes (PTC-15)
Housing color: black (PT-15) / cream (PTC-15)
Rotor color: white (PT-15) / cream (PTC-15)
Wiper Position: initial
Torque: 0.5 to 2.5 Ncm
Terminal material: steel (PT-15) / brass (PTC-15)
Linearity: not controlled
Available Packaging Options:
Bulk, Magazine (35 units), Embossed Tape.
Available Mounting Types:
Horizontal adjust / vertical mounting (H01, H02, H05, H06, H10, H25)
Vertical adjust / horizontal mounting (V02, V12, V15, V17, V18, V20, V21, V22, V23, V24, V25)
Available Rotors:
L, N, G, M, C, F, R, T, W, X, Y, Z.
Available Tapers:
Linear (A), Logarithmic (B), Antilogarithmic (C).
Available Detents:
PAM, P1i, P1F, P02 to P38.
Available Wiper Positions:
Initial (default), 50% (PM), Final (PF).
Standard Resistance Values and Tolerances:
| Resistance () | Order Code | Tolerance |
| 100 | 101 | 20% / 30% |
| 200 | 201 | 20% / 30% |
| 220 | 221 | 20% / 30% |
| 250 | 251 | 20% / 30% |
| 470 | 471 | 20% / 30% |
| 500 | 501 | 20% / 30% |
| 1K | 102 | 20% / 30% |
| 2K | 202 | 20% / 30% |
| 2.2K | 222 | 20% / 30% |
| 2.5K | 252 | 20% / 30% |
| 4.7K | 472 | 20% / 30% |
| 5K | 502 | 20% / 30% |
| 10K | 103 | 20% / 30% |
| 20K | 203 | 20% / 30% |
| 22K | 223 | 20% / 30% |
| 25K | 253 | 20% / 30% |
| 47K | 473 | 20% / 30% |
| 50K | 503 | 20% / 30% |
| 100K | 104 | 20% / 30% |
| 200K | 204 | 20% / 30% |
| 220K | 224 | 20% / 30% |
| 250K | 254 | 20% / 30% |
| 470K | 474 | 20% / 30% |
| 500K | 504 | 20% / 30% |
| 1M | 105 | 20% / 30% |
| 2M | 205 | 20% / 30% |
| 2.5M | 255 | 20% / 30% |
| 4.7M | 475 | 20% / 30% |
| 5M | 505 | 20% / 30% |
Switch Versions: Available with or without detents. Standard specification: Power rating: 24V / 15mA, ON position resistance: 5, Insulation resistance: 30M. Mechanical rotation angle: 2655.
Cut Tracks: Available for PT-15 (PCI, PCF). Not available for PTC-15.
Shafts and Thumbwheels: Various hollow and solid shaft models available. Thumbwheels and shafts are delivered unassembled unless specified. Custom positions and plastic colors are available on request. Non-flammable plastic shafts/knobs available when ordered with non-flammable potentiometers.
2411220430_Amphenol-PT15NH05-104A2020-S_C5848516.pdf
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shaftless potentiometer Amphenol PT15NH05-104A2020-S designed for precise volume and timer adjustment applications Images
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