Dedicated parts for non-heating electrical resistors · Calculation Rules
- Lifecycle status
- Candidate
- Content maturity
- Authored methodology
- Current version
- No published versionLast updated
- Readiness
- Review required
Methodology and translation states come from the source record; publishing this website does not change their review status.
Content languages
zh-CN · Aligned
Status, classification and source details
Readiness
- Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.
Classification mapping
CPC 3.0:47172 · exact
Source
Calculation Rules
| rule_id | Applies to | Formula or rule | Inputs | Output | source_ids |
|---|---|---|---|---|---|
| normalization | all inventory rows | Divide attributable external period quantity by measured accepted net output D in kg; reference output = 1 kg. Correct stocks, cancel internal transfers and attribute actual rejects/rework before dividing. | cp_reference_part; row-specific protocol | per 1 kg reference flow | |
| balance_check | material inventory | For each actual constituent, reconcile external input plus opening stock against accepted part content, rejects, recovered material, releases and closing stock on matching dry/wet and assay basis. Gross paste or alloy mass is not Ag/Pd/Ni/Cr content. Include reaction/volatile loss and work in progress; cancel paired internal transfers. Report residual and measurement uncertainty; no invented closure tolerance. | Composition certificates/assays; stock; waste; measured releases | Constituent residual and uncertainty | |
| energy_conversion | electricity | Metered kWh × 3.6 = MJ if a verified downstream flow requires MJ; do not infer a generation technology or substitute factory fuel for grid supply. | Meter/unit property chain | MJ |
Data Quality Requirements
| requirement_id | Applies to | Requirement | Evidence |
|---|---|---|---|
| identity | reference_part | part number/drawing/revision; dedicated host non-heating resistor and function; delivered completion state; element, substrate, wiper, terminal, cap or body family; dimensions/net mass; alloy, ceramic, polymer and coating grade/composition; resistance/taper/TCR or contact/insulation requirement as applicable; acceptance test conditions; make/buy operations and received state; site, supplier geography, period; yield/rework; packaging | Part order/drawing, dedicated host interface and supplier completion records |
| coverage | all rows | Record present, not applicable with evidence, measured zero or unknown distinctly. Additional actual chemicals need atomic cards. No missing-as-zero and no generic flow substitution. | review_metadata |
| range | all rows | No factory intensity, yield, recipe, item weight, lifetime or GWP default established; collect foreground quantities and uncertainty, seek independent compatible empirical ranges. | Foreground measurements and source applicability |
9. Validation Rules
| rule_id | applies_to | rule | source_ids |
|---|---|---|---|
| validate_part | reference_part | Verify dedicated non-heating host, exact delivered state, measured positive D and acceptance; electrical function alone is insufficient to decide part versus finished device. | nolelc-elements; un-cpc-resistors |
| validate_measurement | all rows | Check 1 kg net reference, every protocol aggregation on the same basis, raw-unit conversion, every measured mass/property link and constituent balance. | |
| validate_complete | dataset | Require actual make/buy coverage, all atomic exchanges, provider conditions, supplier burdens once, waste destination and post-control species/compartment. Unknown quantity, unresolved mandatory UUID or unverified unit/property blocks complete dataset; candidate methodology check is not dataset acceptance or conformance certification. |
10. Published Dataset Profile
| Field | Value |
|---|---|
| dataset_role | foreground_dataset |
| downstream_use | secondary_dataset; background_dataset; process; lifecyclemodel |
| allowed_use | Drawing/state-specific part manufacture and supplier linkage for downstream resistor data production |
| excluded_use | Whole resistor or sensor footprints; heating applications; electrical service comparisons by kg; full lifecycle claim without scenario |
| required_metadata | part number/drawing/revision; dedicated host non-heating resistor and function; delivered completion state; element, substrate, wiper, terminal, cap or body family; dimensions/net mass; alloy, ceramic, polymer and coating grade/composition; resistance/taper/TCR or contact/insulation requirement as applicable; acceptance test conditions; make/buy operations and received state; site, supplier geography, period; yield/rework; packaging |
| required_quality_disclosure | Scope, route, supplier/linkage gaps, actual chemistry, unresolved identity/ranges, normalization, allocation, uncertainty and waste fate |
| update_trigger | Drawing, host application, completion state, recipe, process/supplier, acceptance or meter boundary changes |
11. Data Sources
| Source id | Type | Reference | Used for |
|---|---|---|---|
| un-cpc-resistors | official_guidance | UNSD CPC3.0 subclass47120 and47172. https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/2100/47120 ; https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/2100/47172 | Classification context excludes heating resistors; classification alone does not establish part identity or inventory. |
| nolelc-elements | extension_guidance | NOLELC, Resistive Elements for Potentiometers and Sensors, public page retrieved2October2026. https://nolelc.com/resistance-elements-thick-film-pcb/ | Separately supplied carbon-film, conductive-plastic and cermet tracks; print/fire, trim and conditional co-molding. Sensor applications are not automatic resistor-part coverage; no marketing lifetime or temperature defaults adopted. |
| nolelc-wipers | extension_guidance | NOLELC, Precious metal Multi-Wire Wipers. https://nolelc.com/precious-metal-brusheswipers/ | Separate multi-wire wipers; Palliney-6 is an alloy example, not every wiper recipe; slip-ring and motor-brush applications excluded. |
| cts-wipers | extension_guidance | CTS, VR Series Panel Potentiometers for Instrumentation,18October2023, How does a panel potentiometer work. https://www.ctscorp.com/Resources/Blog/VR-Series-Panel-Potentiometers-for-Instrumentation | Independent construction evidence: printed track and stamped phosphor-bronze/nickel-silver or formed-wire welded wipers. Finished-device source supports bounded part operations only. |
| nolelc-housings | extension_guidance | NOLELC, Potentiometer Housing Materials and Cost,3September2026. https://nolelc.com/potentiometer-housing-materials-and-cost/ | Actual housing alternatives: machined/stamped metal, ABS/PI molding, phenolic body, ceramic forming/firing; substrate/finish grades must come from drawing. |
| seiwa-caps | extension_guidance | Seiwa Metal Works, Fixed Resistor Caps, production equipment. https://www.seiwagrp.co.jp/product/caps/ | Dedicated caps for carbon/metal/metal-oxide film resistors; pressing, barrel finishing and compressed air; source does not identify cap metal grade. |
| hongyi-rheostat-parts | extension_guidance | Hongyi Electronics, Slide Rheostat, replacement parts FAQ. https://resistor-factory.com/products/rheostat | Externally supplied replacement sliders, end clamps and ceramic tubes, plus tube rewinding; laboratory/motor-control context. Stock resistance wire alone is feedstock. |
| vishay-technologies | handbook | Vishay, Resistors101, VMN-SG2113-1205, pages2 and7. https://www.vishay.com/docs/49873/49873_sg2113.pdf | Fixed versus variable device context; bounded wirewound, sputtered NiCr/TaN, printed oxide, foil/composition alternatives. Finished-resistor construction does not require every part to receive all operations. |
| vishay-substrates | handbook | Vishay, Custom Resistor Arrays, document60058 revision27-Feb-2001, page1 Patterned Substrates. https://www.vishay.com/docs/60058/custarra.pdf | Alumina patterned substrates, gold/nickel metallization, optional passivation and trimming. A complete bare resistor network or generic hybrid circuit is not automatically a dedicated part. |
| heraeus-r400ar | extension_guidance | Heraeus Electronics, R400AR Series product selector, description/paste properties/processing. https://www.heraeus-electronics.com/de/products-and-solutions/thick-film-materials/thick-film-materials-overview/tfm-ps-detail/R400AR%20Series/ | Specific AgPd resistor paste printed on alumina, dried, air-fired and laser-trimmable; grade-specific settings are not universal factory energy, composition or process-temperature defaults. Heater/fuse applications excluded. |
| ef-allocation-2021 | official_guidance | Commission Recommendation(EU)2021/2279,AnnexI4.5. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230 | General subdivision/system-expansion and physical-relationship allocation hierarchy; no full PEF compliance claimed. |
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