PT-15 / PTC-15 15-mm Carbon / Cermet Through-Hole Potentiometer
Product Overview
The PT-15 and PTC-15 are 15-mm through-hole potentiometers designed for applications requiring frequent adjustment. Their shaftless design allows for versatile integration with various engagement mechanisms, including custom shafts, motor controls, or human interface adjustments. These potentiometers are ideal for controlling variable outputs such as frequency, motor speed, and volume. They offer excellent performance with up to 3% linearity, a choice of carbon or cermet resistive elements, and up to 38 mechanical detents for tactile feedback. With a lifespan of up to 100,000 cycles and IP54 protection, they are suitable for demanding applications in 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
- Certifications: UL 94V-0 (self-extinguishable plastic available)
- Ingress 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 (Lin) 125 VDC (Log, Alog) | 250 VDC (Lin) 125 VDC (Log, Alog) |
| Nominal Power (at 50C / 122F) | 0.25 W (Lin) 0.12 W (Log, Alog) | 0.25 W (Lin) 0.12 W (Log, Alog) |
| Nominal Power (at 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 Cycles | Up to 100,000 cycles | Up to 10,000 cycles |
| Detents | Up to 38 | Up to 38 |
| Terminal Material | Steel (Standard) | Brass (V24 terminals) |
Applications
- Appliance program selection
- Thermostat adjustment
- Timer and control relays
- Consumer electronics
- Power tool controls
- Test and measurement equipment
Environmental Testing (Typical Piher Results)
| Test | Test Method (CEI 393-1) | PT-15 R(%) | PTC-15 R(%) |
|---|---|---|---|
| Electrical Life | 1,000h at 50C; 0.15W | 5% | n/a |
| Electrical Life | 1,000h at 70C; 0.33W | n/a | 2% |
| Mechanical Life | 1000 cycles at 10 to 15 cpm | 3% (Rn < 1M) | 2% |
| Temperature Coefficient | -25C; +70C | 300 ppm/C (Rn < 100K) | n/a |
| Temperature Coefficient | -40C; +90C | n/a | 100 ppm/C (Rn < 100K) |
| Thermal Cycling | 16h at 85C and 2h at -25C | 2.5% | n/a |
| Thermal Cycling | 16h at 90C and 2h at -40C | n/a | 2% |
| Damp Heat | 500h at 40C and 95% RH | 5% | 2% |
| Vibration | 2h each plane at 10Hz - 55Hz | 2% | 2% |
| Storage | 6 months at 23C 2C and 50% RH | 2.5% | 2% |
Standard test conditions: temperature: 23C 2C and 45% to 70% RH. Out of range values may not comply with these results.
How to Order
Carbon Potentiometer Example: PT15LH01-223A2020-S
Cermet Potentiometer Example: PTC15LH01-223A2020
Ordering Code Structure:
Series - Rotors - Taper - Cut track - Detents - Packaging - Shaft/Thumbwheel - Flammability - Shaft/Rotor color - Torque - Wiper position - -Value - Tolerance - Mounting method
Key for Ordering:
- Rotors: Z (adjustment only on H-mounting), T (standard color Orange)
- Mounting Method: H (Horizontal adjust), V (Vertical adjust)
- -Value: XXX (e.g., 101=100, 505=5M), 000=CM (45 switch SPDT)
- Tolerance: 0505 (5%), 2020 (20%), 3030 (30%)
- Life: [empty]=1K cycles, E=10K cycles, U=100K cycles
- Flammability: [empty]=standard, I=non-flammable (UL 94V-0)
- Packaging: [empty]=bulk, T=magazines, R=embossed tape
- Wiper Position: [empty]=initial, PM=50%, PF=final
- Detents: PAI, PAM, PAF, P1I, P1F, P02P38
- Cut track: [empty]=none, 01=Fig.1, 02=Fig.228=Fig.28
Standard Configuration
| Feature | PT-15 | PTC-15 |
|---|---|---|
| Life | 1,000 cycles | n/a |
| Cut track | no | n/a|
| Detents | none | none |
| Packaging | bulk | bulk |
| Shaft/thumb wheel | none | none |
| Non-flammability | no | yes |
| Housing color | black | cream |
| Rotor color | white | cream |
| Wiper Position | initial | initial |
| Torque | 0.5 to 2.5 Ncm | 0.5 to 2.5 Ncm |
| Terminal material | steel | brass |
| Linearity | not controlled | not controlled |
Mounting Methods
Available mounting methods include Horizontal Adjust (H01, H02, H05, H06, H10, H25) and Vertical Adjust (V02, V12, V15, V17, V18, V20, V21, V22, V23, V24, V25).
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 for switch: 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.
Tapers
- A = Linear
- B = Logarithmic
- C = Antilogarithmic
Detents
Various detent options available (PAM, P1i, P1F, P02P38). Standard mechanical life is 500 cycles. Long life versions available upon request. Consult Piher for unique non-overlapping values, LOG/ALOG tapers, or specific output voltage matching at detent positions.
Stepped Outputs / Constant Value Zones
Constant value zones can be combined with mechanical detents for precise alignment between electrical output and mechanical positions, enhancing repeatability and preventing output changes due to vibration.
Packaging Options
| Mounting Type | Terminal Style | Mounting Method | Bulk | Magazine (35 units) | Embossed Tape |
|---|---|---|---|---|---|
| Horizontal adjust | Straight | H01 | x | x | |
| H05 | x | x | |||
| H06 | x | x | |||
| H25 | x | x | |||
| Crimped | H02 | x | x | ||
| H10 | x | x | |||
| Vertical adjust | Straight | V02 | x | x | x |
| V12 | x | x | |||
| V15 | x | x | x | ||
| V17 | x | Upon request | |||
| V18 | x | ||||
| V20 | x | ||||
| V24 | x | ||||
| Crimped | V21 | x | x | x | |
| V22 | x | ||||
| V23 | x | x | x | ||
| V25 | x | Upon request |
Rotor Type X, W, Y, Z only in bulk packaging.
Shafts and Thumbwheels
Various hollow and solid shaft models are available. Thumbwheels and shafts are delivered unassembled unless specified. Custom positions and plastic colors are available on request. Non-flammable plastic shafts/knobs are available if the potentiometer is ordered with non-flammable plastic (UL-94V0).
2411220430_Amphenol-PTC15NH05-103A2020_C7262448.pdf
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