Automatically recognize Printed Circuit Board Components, generate a labeled Circuit Board Parts Diagram, and export a complete PCB Components List in seconds.
Do you still have a hard time figuring out which tiny resistors, caps, and ICs are in your circuit board? Upload your design now so we can help you quickly match up every electronic component in order to solve issues, repair, or build prototypes more efficiently!
PCB Component Identifier
Upload your PCB image (JPG/PNG) — our system will automatically recognize, label components and generate an annotated layout.
Drag and drop PCB image here or click the button below to upload
Analyzing PCB image, recognizing components…
PCB Component Analysis Results
The system has recognized the following electronic components. Click on a component to view details and highlight on the layout.
PCB Layout Annotation
Identified Component List
Why Our PCB Component Identification Tool Stands Out
Component Recognition
Detects and labels 500+ common electronic components on PCBs — including resistors, capacitors, diodes, transistors, and IC chips — with 98% accuracy.
Stop guessing what each circuit board electronic component does — get precise, labeled results in seconds.
Interactive Circuit Board Parts Diagram
Generate an interactive, labeled diagram where you can click any printed circuit board part to view its specs, value, and datasheet links.
Visualize your PCB layout at a glance to trace connections and diagnose issues without manual probing.
Exportable PCB Parts List
Download a structured PCB components list with part numbers, values, and locations — ready for BOM creation or procurement.
Turn your unlabeled circuit board into an actionable parts list in minutes, eliminating sourcing errors.
Step-by-Step Guide: How to Identify Circuit Board Components
Follow this simple workflow to get the most out of our printed circuit board component identification tool:
Tip for pros: For SMD (Surface Mount Device) components, use a macro lens to capture sharp details – our tools are excellent at identifying tiny 0201 resistors and micro ICs.
Common Electronic Components on PCBs
🔴 Resistors
Regulate current flow. Identify values via 3-4 color bands (e.g., red-red-orange = 22kΩ).
🟡 Capacitors
Store electrical charge. Marked with numerical values (e.g., “104” = 100nF) or voltage ratings.
🟢 Diodes & LEDs
Allow current to flow in one direction. Polarity is marked with a stripe (cathode side).
🔵 IC Chips
Integrated circuits that perform complex functions. Read part numbers to find datasheets.
🟣 Connectors
Link the PCB to external devices (e.g., header pins, USB, HDMI).
⚫ Fuses
Protect circuits from overcurrent. Marked with “F” on most PCBs.
FAQ: PCB Component Identification
The “F” marking typically denotes a fuse (surface-mount or through-hole) that protects the circuit from overcurrent.
Resistors have 3-4 color bands, while capacitors show numerical values or voltage ratings (e.g., “6.3V”).
No — our circuit board component identifier is free to use, with no sign-up required.
We support all common image formats including JPG, PNG — upload a clear photo or design screenshot for best results.
Other resources
Community support
PCBINQ Technical Support Community. A dedicated space for engineers to solve PCB bridging, component failures, and footprint errors.
Blog
This page contains information on modern electronic product PCB design, assembly and manufacturing, performance, stack-up structure, and quality improvement.
Online tools
Free online tool for calculating PCB trace widths, SMD codes, and LED resistors. Quickly and easily help you complete your PCB design work.