Project Overview and Resistor Design

flux

1:29

General
Project
BOM
Knowledge Base
Schematic

Developing a Generic Resistor Part.

Utilizing Knowledge Tool Queries.

Designing Reusable Components and BOM Readiness.

Ensuring Component Linking.

Using Knowledge Base Tool.

Using Schematic Tool.

Using BOM Tool.

Understanding Component Linking and Suggestions.

Below is an overview of this project as it exists right now. It’s a reusable library part designed to represent a generic fixed resistor that you can drop into any schematic early in design, then later swap to a real, sourced MPN.
Project purpose
  • Provide a configurable, generic fixed resistor for rapid schematic capture.
  • Allow quick edits to value and package so the footprint adapts without rework.
  • Serve as a placeholder until a real, sourced resistor is selected for production.
Project properties (from the part)
  • Part Type: Resistor
  • Designator Prefix: R
  • Resistance (default): 500 Ω
  • Package (default): SMD_0603_1608Metric
  • Description lists standard E-series values for quick selection.
Schematic components
  • These are the part’s symbol pins; no nets are expected here because this is a library component template, not an end product schematic.
Schematic elements in this part

Table

DesignatorPartPinPin typeNotes
P1Terminal1UnspecifiedOne end of the resistor symbol
P2Terminal2UnspecifiedThe other end of the resistor symbol
How components interact
  • P1 and P2 are the two electrical pins of the resistor symbol. When this part is used in a larger schematic, these pins connect to the surrounding nets.
  • The part’s properties (Resistance, Package) drive how the value is shown on the symbol and which PCB footprint is used when you place it on a board.
Design and implementation
  • Symbol: Minimal two-pin symbol defined by terminals (keeps this part generic).
  • Parameters: Value and package are set as properties, so you can quickly choose an E-series value and a footprint that fits your layout constraints.
  • Footprint adaptation: The part is set up so the PCB footprint updates with the selected package (e.g., 0603, 0402, 0805). This streamlines early layout and part swaps.
  • BOM behavior: As a generic, it intentionally has no manufacturer part number. This helps move fast initially but must be replaced with a real part before production.
Key technologies and dependencies
  • Parameterized library part: A single component that changes behavior via properties (value and package).
  • Footprint mapping: The PCB footprint is tied to the selected package property rather than a fixed MPN.
  • Sourcing workflow: Because there’s no MPN, downstream BOM export and procurement isn’t production-ready until you substitute a real, in-stock resistor.
Design choices, trade-offs, and optimizations
  • Speed vs. specificity: Using a generic accelerates exploration and keeps schematics clean, but it defers critical specs (tolerance, TCR, power rating, voltage coefficient) and sourcing.
  • Early layout flexibility: Switching packages is fast; however, mechanical and thermal implications still need validation when moving to production.
  • ERC clarity: The pins are currently “Unspecified.” Setting them to “Passive” can reduce false-positive ERC warnings when the part is used across designs.
Potential challenges and performance considerations
  • Power rating: Before production, ensure the real resistor’s power dissipation is below its rating. Best practice: size resistors so they operate at no more than 60% of their maximum rated power. Compute power with P = I^2R or P = V^2/R and verify headroom.
  • Accuracy and drift: Tolerance and temperature coefficient (TCR) materially affect dividers, references, and gain-setting networks; select appropriate grades for precision circuits.
  • Voltage and stress: Confirm the resistor’s voltage rating and any voltage coefficient effects for high-voltage or high-precision designs.
  • Availability: When replacing the generic, choose parts with ample stock across major distributors to avoid redesigns late in the cycle.
  • Footprint/package: The chosen package affects placement density, thermal behavior, hand-solderability, and yield; match the package to assembly capabilities and thermal needs.
Real-world applications
  • Rapid prototyping of resistive dividers, pull-ups/pull-downs, LED current-limiters, sense resistors (non-precision), and bias networks.
  • Educational and proof-of-concept builds where fast iteration is more valuable than early MPN lock-in.
Areas for improvement
  • Add properties for tolerance, temperature coefficient, and intended power rating to guide later MPN selection.
  • Set both pins to “Passive” pin type to reduce ERC chatter when used in larger designs.
  • Provide preset package options (0402, 0603, 0805, axial) as quick-selects with brief usage notes (e.g., assembly difficulty vs. size).
  • Include a short checklist in the part’s description: verify power, tolerance, TCR, voltage rating, and distributor stock before production.
  • Create companion “Generic Capacitor” and “Generic Inductor” parts with similar parameterization for a cohesive rapid-design library.
Scalability and future enhancements
  • Create a “generic resistor array” variant for pull-ups/series terminations to speed bus designs.
  • Offer value presets aligned to E24 or E96 series and guardrails that nudge users toward standard values.
  • Define variant templates (e.g., “precision,” “high power,” “HV”) to streamline selection by application domain.
  • Integrate a sourcing step: when promoting a design to production, automatically suggest in-stock MPNs matching value, package, and constraints, then apply the 60% power guideline and distributor availability checks.
If you want, I can walk you through turning this generic into a production-ready MPN in your current design: we would size power, pick tolerance/TCR, select the right package, and replace it with an in-stock resistor before generating the BOM.
26 days
jasdubh

jasdubh

I want to add individual componenets
13 days

flux

1:03

General
Chat History
Project
Plan

Planning Component Integration.

Preparing the Component Plan.

Clarifying the Component Plan.

You want to add individual components to this project. I have a plan ready to execute that will add the specified parts and set their values/packages.
Planned steps:
  1. Collect your component list (values, packages, or MPNs).
  2. Find them in the library or use Generic parts.
  3. Add them and set properties.
  4. [Optional] Connect requested nets.
Quick questions:
  • Which components do you want (with values and packages or MPNs)?
  • Add only to the schematic, or also plan for layout later?
  • Keep nets unconnected, or should I wire specific pins together?
13 days

Started implementing a plan

#Goal

- Add individual components to the current project following the provided specifications for a reusable library component template. In this case, the focus is on a parameterized Generic Resistor with adaptable footprint, with its properties (value, package, designator) set appropriately.

#Implementation plan

1. Identify and collect the component parameters:

1. Verify the resistor value, package type, and optional MPN if available.

2. Confirm that the purpose is to maintain two isolated terminals (P1 and P2) without net connections, preserving its role as a reusable template.

2. Search the Flux library for the 'Generic Resistor' component or choose a generic part if a specific one is not available.

3. Add the Generic Resistor component to the schematic:

1. Place the component on the schematic with the current canvas.

2. Set its properties such as resistor value, package footprint, and designator as per the specifications.

4. (Optional) If needed, verify any additional parameters or perform a quick availability and missing footprint check to ensure compatibility with the project template.

#Success criteria

- A Generic Resistor is present in the schematic with correctly configured properties (value, package, designator).

- The component addition does not conflict with the project template, ensuring only two terminals (P1 and P2) remain open as originally planned.

- Quick verification confirms that no footprint or availability issues are present.

11 days

Stopped due to a problem. Please try again.

Sign up to send
explain this project.
PCB ÇİZ
27
What is this?
6
explain this project.
13
are there any issues in this project?
18
create a high level mermaid block diagram of P1. Include key component's manufac...
28
how do I use Flux?
21
500ohm
5
How to connect a generic resistor?
10
recommend a replacement for P1.
16
how can i drawing a schematic
25
explain this project.
14
create a detailed step by step plan table for this project to verify its functio...
29
create a high level mermaid block diagram of this project. Include key component...
20
are there any issues in this project?
30
dibujar diagrama unilineal tablero de alumbrado
19
o
26
create a high level mermaid block diagram of this project. Include key component...
22
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
    jharwinbarrozo
    15.1k
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M

Inspect

Generic Resistor

Generic Resistor
Description

Created
Last updated by jharwinbarrozo
4 Contributor(s)
jharwinbarrozo
natarius
imanzi
sandavinay

Controls

Properties

Resistance
500 Ω
Part Type
Resistor
Package
SMD_0603_1608Metric
Manufacturer Part Number
Manufacturer Name
Designator Prefix
R
Datasheet URL

Availability & Pricing

DistributorQty 1

Assets