Global PCB Manufacturer Library — 2,267 Verified Companies
Global PCB Manufacturer Library — 71 Countries · 2,267 Verified Manufacturers
PCB & Electronics Calculators
Essential calculation tools for PCB design, component selection, and engineering
PCB Impedance Calculator
Calculate characteristic impedance for microstrip and stripline
Resistor Color Code Calculator
Decode resistor color bands to resistance value
Voltage Divider Calculator
Calculate output voltage for resistor divider circuit
LED Resistor Calculator
Calculate required resistor for LED circuit
Power Dissipation Calculator
Calculate power dissipation in resistor
Capacitor Code Calculator
Decode capacitor marking code to capacitance value
PCB Cost Estimator
Quick estimate for PCB fabrication cost
Trace Width Calculator
Calculate required PCB trace width for given current using IPC-2152 formula
Via Current Capacity Calculator
Calculate maximum current through a PCB via based on diameter and plating thickness
RC/LC Filter Cutoff Frequency
Calculate the -3dB cutoff frequency for RC low-pass or LC filters
Crystal Load Capacitance Calculator
Calculate the required load capacitors for a crystal oscillator circuit
Battery Life Estimator
Estimate how long a battery will last given the average current draw
Voltage Drop Calculator
Calculate voltage drop across a PCB trace or wire given length, width, and current
Thermal Resistance & Heat Sink Calculator
Calculate required thermal resistance of heat sink for power components
Decoupling Capacitor Calculator
Calculate the required decoupling capacitance for an IC based on switching speed
Wire Size / AWG Calculator
Convert between AWG, mm², diameter and calculate wire current capacity
ADC Resolution Calculator
Calculate ADC step size, resolution, and effective bits for sensor interfacing
I²C Pull-up Resistor Calculator
Calculate the minimum and maximum pull-up resistor values for I²C bus
Signal Propagation Delay Calculator
Calculate signal propagation delay through PCB traces based on dielectric constant
PCB Weight Estimator
Estimate the weight of a bare PCB board based on dimensions, layers, and copper weight
Inductor Color Code / SMD Code Calculator
Decode inductor values from color bands or SMD marking codes
Linear Regulator Power Loss Calculator
Calculate power dissipation and efficiency of a linear voltage regulator
Power Supply Efficiency Calculator
Calculate power supply efficiency, power loss, and operating cost
555 Timer Calculator
Calculate frequency and duty cycle for 555 timer in astable mode
Op-Amp Gain Calculator
Calculate gain for inverting, non-inverting, and differential amplifier configurations
Capacitor Energy Storage Calculator
Calculate energy stored in a capacitor and discharge characteristics
Inductor Energy Storage Calculator
Calculate energy stored in an inductor and time constant
dBm / Power / Voltage Converter
Convert between dBm, Watts, milliwatts, and voltage across impedance
Resistor Series/Parallel Calculator
Calculate equivalent resistance for series and parallel combinations
Microstrip Impedance Calculator (Z₀)
Calculate characteristic impedance of a microstrip transmission line on PCB
Differential Pair Impedance Calculator
Calculate differential impedance for coupled traces (USB, HDMI, Ethernet)
Fuse Rating Calculator
Select appropriate fuse rating based on load current and inrush characteristics
Skin Depth Calculator
Calculate electromagnetic skin depth in conductors at given frequency
LED Brightness & Luminous Flux Calculator
Calculate LED brightness, luminous intensity, and viewing angle coverage
RF Frequency / Wavelength Converter
Convert between frequency and wavelength in free space and PCB substrate
Capacitor Voltage Stress Calculator
Calculate voltage derating and reliability impact for capacitors
Clock Jitter Calculator
Convert between RMS jitter, peak-to-peak jitter, and phase noise
Transformer Turns Ratio Calculator
Calculate turns ratio, voltage, and current for ideal transformer
Coaxial Cable Loss Calculator
Estimate signal attenuation through coaxial cable at given frequency and length
Relay Driver Calculator
Calculate base resistor and flyback diode requirements for relay driving
EMI Frequency Estimator
Estimate EMI emission frequencies from digital clock edges
Solder Paste Volume Calculator
Calculate solder paste deposit volume for stencil printing
Stencil Aperture Calculator
Calculate optimal aperture size based on component lead pitch and IPC standards
Creepage & Clearance Calculator
Calculate minimum creepage distance and clearance per IPC-2221 / IEC 60950
PCB Panelization Calculator
Calculate optimal panel/array layout for PCB manufacturing
V-Score / Break-away
Panel scoring depth & break force estimation
Board Utilization Calculator
Calculate PCB real estate utilization by components
Thermal Via Array Calculator
Calculate thermal resistance improvement with via array under thermal pad
PDN Target Impedance Calculator
Calculate target impedance for Power Distribution Network design
Conformal Coating Coverage Calculator
Calculate coating coverage area, volume needed, and cost per board
Reflow Profile Calculator (Lead-Free)
Calculate reflow oven settings and time in each zone for SAC305 solder
Pick & Place Speed Estimator
Estimate placement cycle time and throughput for SMT assembly
Drill Count Estimator
Estimate total drill hits based on component count and board complexity
Copper Balance Calculator
Check copper distribution balance across layers to prevent warpage
Ground Plane Inductance Calculator
Estimate ground plane inductance for high-speed return path
Power Density Calculator
Calculate power dissipation density and thermal management needs
Component Density Calculator
Calculate component placement density and assembly complexity
Via Fence / Shielding Calculator
Calculate via fence spacing for RF shielding and signal isolation
Annular Ring Calculator
Calculate annular ring width and check against IPC-2221 minimums
PCB Aspect Ratio Calculator
Calculate aspect ratio for via drilling feasibility per IPC-6012
Trace Current Density Calculator
Calculate current density in PCB traces to check for hotspots
Ohm's Law Calculator
V = I × R
RC Time Constant
τ = R × C
LC Resonant Frequency
f₀ = 1/(2π√LC)
Capacitive Reactance
XC = 1/(2πfC)
Inductive Reactance
XL = 2πfL
SMD Resistor Code Decoder
Decode 3/4-digit SMD markings
VSWR & Return Loss
VSWR ↔ Return Loss ↔ |Γ|
Free Space Path Loss
FSPL = 20log(d)+20log(f)+20log(4π/c)
Coil Inductance
Single-layer air-core (Wheeler)
PWM Duty Cycle
Period, pulse width, duty cycle
Parallel Resistors
1/Rt = 1/R1 + 1/R2 + ...
L-Network Impedance Match
L and C for impedance matching
Quarter-Wave Transformer
Z₀=√(Zs×Zl), len=λ/4
Star-Delta Conversion
Y↔Δ resistor network
Current Divider
Current through parallel branches
Rise Time & Bandwidth
BW×tr=0.35
Noise Figure Cascade
Friis formula
SMD Pad Size (IPC-7351)
Recommended pad dimensions
PFC Boost Inductor
Calculate boost inductor for power factor correction
Diode Forward Voltage Drop
Calculate diode voltage drop with temperature
Buck Converter Inductor
Calculate output inductor for buck converter
Boost Converter Output Capacitor
Calculate minimum output capacitance for boost converter
3-Phase Power Calculator
Calculate 3-phase active/reactive/apparent power
LDO Power Dissipation
Calculate LDO regulator heat dissipation
Power System Efficiency
Calculate cascade efficiency of multiple stages
ADC SNR & ENOB Calculator
Calculate theoretical SNR and ENOB from ADC bits
I²C Bus Speed Calculator
Calculate I²C transfer time and throughput
SPI Bus Speed Calculator
Calculate SPI data throughput
UART Transfer Time
Calculate UART transfer time and overhead
Crystal Frequency PPM Calculator
Calculate frequency error in parts per million
RF Attenuator Designer
Pi and T attenuator resistor values
Wilkinson Power Divider
Equal-split Wilkinson divider design
Skin Depth (Conductors)
Current penetration depth in conductors
Stripline Impedance
Symmetric stripline characteristic impedance
Wheatstone Bridge Calculator
Find unknown resistance at bridge balance
Potentiometer Voltage Divider
Output voltage from pot wiper position
Heatsink Thermal Resistance
Calculate required heatsink θsa
PCB Via Impedance
Estimate single via parasitic inductance and impedance
Differential Pair Coupling Factor
Calculate coupling between diff pair traces
BOM Cost Estimator
Estimate total BOM cost from component list
PCB Yield & Loss Estimator
Calculate expected yield loss from defect rate
BJT Bias Point Calculator
Calculate DC operating point (Q-point) for voltage-divider biased BJT
MOSFET Gate Drive Calculator
Estimate gate resistor, charge time and switching loss
Differential Amplifier
Calculate gain, CMRR and output of op-amp differential configuration
Current Sense Resistor
Design shunt resistor for current measurement
Capacitor Derating
Estimate effective capacitance after DC bias & temperature derating
E-Series Standard Values
Find nearest E12/E24/E96 standard resistor/capacitor values
Bridge Rectifier Calculator
AC to DC full-wave bridge rectifier output voltage & ripple
Flyback Transformer Design
CCM/DCM flyback converter transformer parameters
Inrush Current Limiter
NTC thermistor / resistor sizing for inrush current limiting
555 Monostable (One-Shot)
Calculate output pulse width for 555 monostable mode
PLL Loop Filter Design
Type-II charge-pump PLL passive loop filter component values
PCB Propagation Delay
Signal propagation delay through PCB traces
Wavelength ↔ Frequency
Convert between frequency and wavelength (free space or dielectric)
dB / dBm / dBW Converter
Convert between dB, dBm, dBW and linear power/voltage ratios
Thermal Noise Floor
Calculate kTB noise floor and system noise figure impact
Antenna Gain Converter
Convert between dBi, dBd, and linear gain factor
Coplanar Waveguide Z₀
Grounded coplanar waveguide (GCPW) characteristic impedance
Fusing Current (Onderdonk)
Calculate PCB trace fusing current for given duration
IPC Conductor Spacing
Minimum conductor spacing per IPC-2221
Exposed Thermal Pad Size
Estimate exposed pad dimensions for thermal dissipation
Pi-Network Impedance Match
3-element Pi matching network design
Power Factor Correction
Calculate required capacitor for power factor correction
TVS Diode Selection
Select TVS clamping voltage for surge protection
Etch Factor Compensation
Calculate etch factor for impedance compensation during PCB manufacturing
LED Series/Parallel Array
Calculate LED array configuration: series count, parallel strings, resistor
Relay Contact Life
Estimate relay contact life based on load and switching conditions
Electronic Unit Converter
Convert between electronic units: pF/nF/uF, mH/uH, ohm/kOhm/MOhm
Current Limit Resistor
Calculate current limiting resistor for LED, laser diode, or sensor
Copper Weight Converter
Convert between oz/ft2, um, and mil copper thickness
Differential Via Pair
Calculate differential via pair impedance and spacing
Minimum Annular Ring
Check annular ring against IPC-2221 Class requirements
Buck Converter Design
Complete buck converter: L, C, duty cycle, ripple
Boost Converter Design
Complete boost converter: L, C, duty cycle, peak current
LDO Thermal Design
LDO power dissipation and thermal management
System Power Budget
Multi-rail power budget with efficiency chain
RS-485 Termination
RS-485 bias and termination resistor calculator
CAN Bus Termination
CAN bus termination, bias, and maximum length
Ethernet Magnetics
10/100/1000 Ethernet center tap and termination
Dipole Antenna Length
Half-wave dipole antenna length for target frequency
PCB Antenna (Meander)
Estimate PCB meander antenna dimensions for 2.4GHz/433MHz
Schmitt Trigger Thresholds
Calculate upper/lower thresholds for Schmitt trigger circuit
Wien Bridge Oscillator
Design Wien bridge oscillator: R, C for target frequency
PID Controller Tuning
Basic PID tuning using Ziegler-Nichols method
Thermal Interface Material
Calculate thermal resistance of TIM (thermal pad/paste)
Cable Ampacity
Max current for PCB traces (IPC-2152)
Capacitor ESR Loss
Power dissipation from ESR ripple current
Solder Joint Reliability
Estimate solder joint fatigue life (Engelmaier model)
Battery Internal Resistance
Estimate battery internal resistance from voltage drop
UPS Runtime Calculator
Estimate UPS backup time from battery and load
PCB Fabrication Price Calculator
Instant quotes from 16+ major PCB manufacturers. Compare pricing, lead times, and shipping costs side by side.
⚡ Instant PCB Price Comparison
16 manufacturers · updated Aug 2026📦 Quantity
Price Comparison Results
| # | Manufacturer | Unit Price | Total Price | Lead Time | Shipping | Total + Ship |
|---|
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About PCBLib
The world's most comprehensive PCB manufacturer directory — connecting engineers, buyers, and makers with verified suppliers worldwide.
Our Mission
PCBLib was built to solve a real problem: finding the right PCB manufacturing partner shouldn't take weeks of research. We created the most comprehensive global directory of verified PCB manufacturers, making it easy for electronics engineers, procurement managers, hardware startups, and hobbyists to discover, compare, and connect with suppliers that match their exact requirements.
What We Offer
Global Manufacturer Directory
2,267 verified PCB companies across 71 countries. Filter by country, technology (rigid, flex, HDI, MCPCB, Rogers), layers, services, and certifications.
PCB Price Comparison
Instant quotes from 16+ major PCB manufacturers. Compare pricing, lead times, and shipping costs side by side. Prices updated regularly.
147 Free Calculators
Professional engineering tools in 8 categories: PCB Design, RF Engineering, Power, Passive Components, and more. All free, all instant.
Industry Navigation Hub
124+ curated resources across 12 categories: fabrication, assembly, design software, materials, equipment, testing, standards, and more.
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English, 中文, 日本語, Deutsch, Español, Français, Português, 한국어, and Русский. The entire site is fully available in all 9 languages.
Community Reviews
Real reviews from verified Google accounts. Rate manufacturers on quality, delivery, communication, and value.
Who We Serve
Data-Driven & Transparent
PCBLib's database is built from verified public sources including company websites, industry directories, trade show exhibitor lists, and professional databases. Each manufacturer profile includes company name, country, address, phone, website, technology capabilities (rigid, flexible, HDI, multilayer, MCPCB, Rogers), layer range, services, and certifications.
Our PCB price comparison system aggregates real pricing data from 16+ major manufacturers, updated regularly to reflect current market rates. The algorithm factors in layer count, board area, surface finish, copper weight, board thickness, and shipping costs.
We also maintain a curated directory of 124+ industry resources spanning EDA software, component distributors, standards bodies, trade shows, and technical communities — everything a PCB professional needs in one place.
Ready to Find Your PCB Partner?
Browse 2,267 verified manufacturers, compare prices from 16+ suppliers, and use 147 free engineering calculators — all in one place.
The World's Largest PCB Manufacturer Library
PCBLib v21.org is the most comprehensive global directory of printed circuit board (PCB) manufacturers. Our database contains 2,267 verified PCB companies from 71 countries, covering PCB fabrication, PCB assembly, PCB design services, and more. Whether you're looking for rigid PCB manufacturers, flexible circuit suppliers, HDI PCB fabricators, or turnkey PCB assembly services, PCBLib v21 helps you find the right manufacturing partner.
Browse PCB Manufacturers by Country
Find PCB manufacturers by region. Major manufacturing hubs include:
Browse PCB Manufacturers by Technology Type
Find specialized PCB manufacturers by board technology. Whether you need rigid PCB fabrication, flexible circuit (FPC) manufacturing, HDI (High Density Interconnect) boards, metal core PCB (MCPCB) for thermal management, or Rogers/high-frequency PCB for RF applications, PCBLib v21 helps you find manufacturers with the exact capabilities you need.
PCB Manufacturing Services Library
Beyond PCB fabrication, our directory covers the full spectrum of electronic manufacturing services. Browse PCB assembly (PCBA) companies offering SMT and through-hole assembly, turnkey PCB assembly providers handling component sourcing to final testing, PCB stencil manufacturers, and companies offering conformal coating, box build assembly, PCB testing, and reverse engineering services.
Industries We Serve
Our listed PCB manufacturers serve diverse industries including automotive electronics (ECU, ADAS, EV battery management), medical devices (diagnostic instruments, monitoring equipment), aerospace & defense (avionics, radar, communication), telecommunications (5G base stations, networking equipment), consumer electronics (smartphones, wearables, IoT), and industrial control (PLCs, motor drives, power supplies).
Why Choose PCBLib as Your PCB Sourcing Platform?
PCBLib is the world's leading PCB manufacturer directory and PCB sourcing platform, trusted by electronics engineers, procurement managers, and hardware startups worldwide. Our comprehensive database covers 2,267 verified PCB companies across 71 countries, including 552 PCB manufacturers in China, the world's largest PCB manufacturing hub. Whether you need PCB fabrication quotes, PCB assembly services, flexible circuit board suppliers, or HDI PCB manufacturers, PCBLib helps you compare capabilities, certifications (ISO 9001, IATF 16949, AS9100, UL), and pricing from top-rated suppliers in minutes — not weeks. Use our 147 free PCB calculators for trace width, impedance, via current, and more, or get instant PCB fabrication quotes from 16+ manufacturers with our PCB price calculator.
Frequently Asked Questions
How many PCB manufacturers are listed on PCBLib v21?
PCBLib currently lists 2,267 verified PCB manufacturers across 71 countries worldwide, making it one of the most comprehensive PCB manufacturer directories available online.
Can I add my PCB company to the directory?
Yes! Click the "Add Your Company" button on our homepage to submit your PCB manufacturing company for inclusion. We review all submissions to ensure data quality and relevance.
What types of PCB manufacturers are listed?
PCBLib v21 lists all types including rigid PCB, flexible circuit, HDI, multilayer, metal core (MCPCB), Rogers/high-frequency PCB manufacturers, plus PCB assembly (PCBA) and stencil service providers.
How can I find PCB manufacturers by country?
Use the Country filter dropdown on our directory page, or click the country links above. We cover manufacturers in China (552), USA (486), India (180), UK (91), Taiwan (72), Germany (66), Canada (52), and 60+ other countries.
Is PCBLib v21 free to use?
Yes, PCBLib v21 is completely free for buyers and engineers searching for PCB manufacturers. Listing your company is also free — simply submit through our "Add Your Company" form.