Float travel and curve definition
Map float-arm position and tank-volume targets to active angle, breakpoints, resistance or voltage output, empty/full references, stops, and any damping or segmentation requirements.
Vehicle fuel-sender resistive element
Automotive Fuel Gauge Resistor Card
An automotive fuel gauge resistor card works with a float, arm, contact, wiring, and vehicle electronics to translate tank level into a usable signal. Chipsimple reviews the motion range, resistance curve, printed geometry, terminals, fuel-side isolation, environment, and validation method before releasing the design.
- Float-arm travel mapped to resistance response
- Linear, nonlinear, or segmented curve review
- Contact path and terminal interface planning
- Vehicle-environment validation by project
100 Ω–1 MΩ typicalCategory resistance reference
Linear / Nonlinear / SegmentedCategory curve routes
By drawingTank geometry and sender travel
By project reviewFuel isolation and validation
On this pageOverview
Quick Specifications
Category-level selection values cover substrate, sensor geometry, printed systems, track count, resistance behavior, contact route, and operating environment. Final values are confirmed against the customer drawing, mating contact, electronics, and validation method.
Final values confirmed against customer drawing.
| Substrate Material | Alumina / FR-4 / PI |
|---|---|
| Sensor Geometry | Rotary / Linear / Arc |
| Resistor System | RuO₂ / Carbon |
| Conductor System | Ag / Ag-Pd / Au / Ag-C |
| Track Count | 1–4 tracks typical |
| Nominal Resistance | 100 Ω–1 MΩ typical |
| Resistance Curve | Linear / Nonlinear / Segmented |
|---|---|
| Resistance Tolerance | ±1–10% by material system |
| Linearity | ±0.5–2% FS typical |
| TCR | ±100–200 ppm/°C ceramic reference |
| Contact System | Precious metal / Carbon |
| Operating Temperature | -40 to +125°C, system-dependent |
Engineering Capabilities
Automotive fuel senders need coordinated review of tank mechanics, curve definition, printed materials, contact behavior, terminals, and vehicle validation. The card is released only after these inputs are linked to measurable acceptance criteria.
Track and conductor artwork
Release resistor segments, conductor paths, collector areas, overlaps, inactive margins, terminals, and reference features as controlled artwork tied to the sender mechanics.
Wiper and terminal integration
Review contact material, force, path width, pivot tolerance, support, terminal connection, loading, sealing boundary, and assembly stack for the intended sender module.
Sender-level validation
Define output versus position or volume, contact stability, repeatability, vibration, temperature, contamination, cycling, calibration, and end-of-line checks using production-intent hardware.
Typical Applications
Representative applications below require tank-specific mechanical conversion, material compatibility, sealing, electronics, calibration, and vehicle-level validation before use.
Application illustrationAutomotive fuel-level senders
Passenger and commercial vehicle senders require tank-specific float travel, curve tables, contact mechanics, sealing, vibration, temperature, calibration, and qualification.
Review application inputs
Application illustrationVehicle instrument systems
Gauge and controller integration depends on electrical loading, harness, diagnostics, damping, empty/full calibration, environmental exposure, and vehicle-level acceptance tests.
Review application inputs
Application illustrationCustom liquid-level mechanisms
Related level-sensing mechanisms may be reviewed after media isolation, float or linkage design, output curve, contact system, enclosure, and lifecycle requirements are defined.
Review application inputsVerified Product Views
The supplied photographs verify several complete rectangular resistor-card views with visible arc patterns, conductor routes, pads, and sample markings. They do not identify materials or prove electrical, fuel, environmental, or lifecycle performance.
- Visible format
- The sample set shows complete rectangular white cards in single-card and paired compositions.
- Printed geometry
- Arc-shaped regions, segmented paths, conductors, terminal pads, and visible sample codes are present.
- Surface variants
- More than one visible pattern arrangement appears in the supplied photographs; functional equivalence is not inferred.
- Evidence boundary
- The images cannot confirm substrate, paste chemistry, resistance curve, fuel compatibility, temperature, contact life, or qualification status.
Manufacturing & Quality
Chipsimple supports drawing-led printed sensor elements with controlled printing, resistance adjustment where applicable, dimensional and electrical inspection, and protected handling. The exact route depends on substrate, resistor system, contact design, and validation plan; these photographs show general company capability, not evidence of the displayed product batch.
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 Automotive Fuel Gauge Resistor Card?
Start with tank geometry, fuel-volume table, float and arm mechanics, pivot and stop locations, required empty/full and intermediate outputs, electronics, wiper system, sealing boundary, fuel exposure, vibration, temperature, lifecycle, and calibration method.
Are the Quick Specifications guaranteed for every resistor card?
No. These are category-level selection values, not a released part specification. Substrate, resistor and conductor systems, geometry, resistance, tolerance, linearity, TCR, contact route, and operating temperature are narrowed against the drawing, mating mechanics, electronics, and validation plan.
How should Automotive Fuel Gauge Resistor Card performance be validated?
Use a production-intent sender assembly and defined fluid or approved simulation. Correlate output to arm position and tank volume, then check repeatability, contact stability, vibration, temperature, contamination, cycling, harness loading, damping, calibration, and end-of-line test limits.
What should be included with the RFQ?
Send the controlled drawing or artwork, dimensions and tolerances, active travel or angle, resistance and output-curve data, track count, mating contact, electrical loading, environment, validation method, quantity, and schedule. Include the tank-volume-to-arm-position relationship and the required resistance or voltage table, not only empty and full endpoint values.
Request a Automotive Fuel Gauge Resistor Card Quote
Send the tank and sender mechanics, float-travel data, required output curve, mating contact, electrical circuit, environment, and validation requirements. We will review the complete sensing chain before proposing a prototype route.
- Drawing-led DFM and curve-definition review
- Substrate, resistor, conductor, and contact-system selection
- Prototype and validation-route planning
- Confidential handling of customer drawings and data
- Controlled drawing, artwork, dimensions, tolerances, and active travel or angle
- Resistance range, output curve or table, linearity target, and track count
- Mating wiper or contact details, force window, connector, and assembly stack
- Substrate and printed-system preference, or permission for engineering selection
- Electrical loading, temperature, vibration, fluids, contamination, and lifecycle targets
- Prototype quantity, annual volume, inspection method, validation plan, and schedule
- 1We check the drawing, motion, electrical response, contact interface, environment, and missing acceptance inputs.
- 2You receive DFM questions and a proposed material, artwork, prototype, and validation route for review.
- 3Production follows the approved revision, inspection plan, traceability requirement, and packing instruction.
Submit RFQ and upload files
PDF, DWG, DXF, STEP, Gerber, ZIP, Excel, Word, or sample photos are accepted.