Resistive and collector system
Select the carbon system, conductor interface, film build, cure, protection, exposed contact windows, and collector arrangement as one compatible printed stack.
Custom printed potentiometer element
Carbon Film Potentiometer PCB
Carbon film potentiometer PCBs integrate a printed resistive track and conductor interface on FR-4 for rotary or application-specific adjustment. Chipsimple reviews resistance range, taper or curve, active angle, wiper geometry and force, copper overlap, terminals, loading, protection, wear duty, environment, and calibration together.
- Custom arc and collector-track artwork
- Resistance taper released by curve
- Wiper mechanics included in DFM
- Wear and calibration by application
10 Ω–1 MΩCategory target range
±1–5% FSLinearity typical
5Verified product views
By curveFinal response release
On this pageOverview
Quick Specifications
The table provides FR-4 carbon-film selection values for early design review. The released board stack, ink, resistance, taper, active angle, contact system, finish, loading, wear target, protection, and test method are confirmed against the potentiometer drawing and mechanism.
Final values confirmed against customer drawing.
| Base Material | FR-4 |
|---|---|
| Board Thickness | 0.4–3.2 mm typical |
| Copper Weight | 0.5–2 oz typical |
| Carbon Ink | Polymer carbon / Ag-C blend |
| Carbon Film Thickness | 8–15 µm typical |
| Cure Temperature | 120–150°C typical |
| Sheet Resistance | 50–5,000 Ω/□/25 µm reference |
|---|---|
| Target Resistance | 10 Ω–1 MΩ typical |
| Resistance Tolerance | ±5% / ±10% typical |
| Linearity | ±1–5% FS typical |
| Surface Finish | HASL / ENIG / ENEPIG |
| Wear Life | ≥10,000 cycles typical |
Engineering Capabilities
Potentiometer performance is set by the entire electromechanical chain. Engineering review connects track aspect ratio and sheet resistance, conductor overlap, collector path, active angle, taper table, wiper material and force, shaft alignment, electrical loading, protection, contamination, movement duty, and calibration method.
Angle and taper artwork
Release active and total angle, start and end references, track width, collector geometry, overlaps, dead zones, terminals, and the required resistance or voltage curve.
Wiper and shaft mechanics
Define wiper material, number of fingers, force, radius, alignment, rotation direction, speed, stops, lubrication, housing support, and assembly tolerances.
Curve, noise, and wear tests
Specify measurement points, electrical loading, linearity or taper error, contact resistance variation, repeatability, rotation cycles, environment, and calibrated fixture limits.
Typical Applications
Printed potentiometer boards support rotary feedback and manual adjustment only after the wiper, shaft, electronics, enclosure, and validation conditions are defined.
Application illustrationHVAC actuator feedback
Arc tracks can be evaluated for actuator position feedback when gear travel, wiper force, connector, temperature, vibration, calibration, and expected cycles are released.
Review application inputs
Application illustrationRobotics and servo feedback
Compact rotary feedback requires application-specific resolution, taper, speed, support, contact behavior, control electronics, duty cycle, and environmental validation.
Review application inputs
Application illustrationAppliance rotary controls
Control knobs and selector assemblies may use printed tracks after detents, shaft alignment, current, cleaning, humidity, feel, and lifecycle targets are defined.
Review application inputsVerified Product Views
The verified product views show arc-shaped black printed tracks, circular openings, conductor and terminal regions, and several board arrangements. They do not establish resistance value, taper, active angle, linearity, contact noise, wiper compatibility, torque, wear life, or environmental performance.
- Visible geometry
- Arc tracks, collector areas, center features, conductor paths, and terminal pads are visible.
- Curve boundary
- Resistance, taper, linearity, active angle, and direction require a controlled curve definition and fixture.
- Wiper boundary
- Contact material, force, radius, alignment, speed, and lubrication belong to the complete assembly.
- Lifecycle boundary
- Wear, noise, repeatability, and environment are validated under the released load and motion duty.
Manufacturing & Quality
Chipsimple supports polymer-carbon printing, laboratory inspection, managed production, and protected packing in Dongguan. Potentiometer projects release the board and ink system, track artwork, wiper fixture, curve test, sampling, traceability, and acceptance criteria together; completed-control performance remains tied to the customer mechanism.
View Full Capabilities
Technical FAQ
Short answers for quotation planning; released drawings and validation requirements remain controlling.
What should be defined first for a custom Carbon Film Potentiometer PCB?
Define resistance range, taper or curve table, total and active angle, direction, terminal references, electrical loading, wiper material and force, shaft and housing alignment, rotational speed, expected cycles, contamination, temperature, humidity, connector, calibration, and acceptance method before artwork release.
Are the quick specification values guaranteed for every design?
No. They are practical category-level selection values, not a released product specification. Material compatibility, geometry, print build, electrical loading, assembly, environment, inspection method, and expected volume can narrow the usable window. Final values are confirmed against the controlled drawing and approved project conditions.
How should Carbon Film Potentiometer PCB performance be validated?
Use the production-intent wiper, shaft support, and electronics to measure resistance or voltage against angle, taper error, repeatability, contact noise, end behavior, temperature effects, contamination, and wear. The fixture, speed, force, current, conditioning, sample size, and failure limits must be controlled.
What should be included with an RFQ?
Send the controlled drawing or artwork, dimensions and tolerances, material preference, electrical targets, assembly interface, operating environment, validation requirements, prototype quantity, annual volume, and schedule. Include the taper or curve table, angle references, wiper design and force, shaft alignment, electrical load, and target cycles.
Request a Carbon Film Potentiometer PCB Quote
Provide the board artwork and the complete rotary interface so track geometry, taper, wiper mechanics, electrical loading, protection, calibration, and wear validation can be reviewed as one product. A curve table and controlled angle references are more useful than a nominal resistance alone.
- Drawing-led DFM and material-route feedback
- Prototype and repeat-production route review
- Confidential handling of customer files
- Project-specific inspection and validation planning
- Gerber, drill, outline, and potentiometer drawing
- FR-4 stack, copper finish, carbon system, and protection
- Resistance range, taper table, tolerance, and direction
- Total angle, active angle, stops, and reference points
- Wiper material, fingers, force, radius, and alignment
- Electrical load, speed, cycles, environment, and calibration
- Quantity, schedule, sampling, traceability, and packing
- 1We review the drawing, application, material route, and missing acceptance inputs.
- 2You receive DFM questions and a prototype route for approval.
- 3Repeat production follows the released revision, inspection plan, and packing requirement.
Submit RFQ and upload files
PDF, DWG, DXF, STEP, Gerber, ZIP, Excel, Word, or sample photos are accepted.