Electrical & Electronics
Electrical and electronics reference data including AWG wire sizes, current ampacity, NEMA enclosure ratings, PCB trace widths, and commonly used electrical standards.
This engineering reference collection contains 12 reference resources covering commonly used technical data, standards, formulas, and engineering information.
Electrical & Electronics References
Browse the available engineering reference resources.
Busbar Ampacity Chart
Standard continuous current carrying capacities (ampacity) for rectangular copper and aluminum busbars in electrical panels.
Standard Cable Types & Insulation Ratings
Guide to electrical wire types, insulation acronyms, temperature ratings, and standard application environments.
Standard Conduit Sizes & Fill Capacities
Reference chart for nominal conduit diameters and maximum allowable wire fill ratios (fill capacity) for safe electrical installations.
Standard Fuse & Breaker Ampere Ratings
List of standard nominal current ratings for low-voltage miniature circuit breakers (MCB), molded case circuit breakers (MCCB), and fuses.
PCB Trace Width Calculator Chart
Printed Circuit Board (PCB) trace width tables for 1 oz and 2 oz copper weight based on standard IPC-2152 current carrying capacities.
Resistor Color Code Chart
Easy-to-read resistor color code table to determine resistance values, multipliers, and tolerances for 4-band, 5-band, and 6-band resistors.
RF Connector Types & Frequency Bands
Engineering guide to standard RF (Radio Frequency) connectors, their impedance (50/75 Ohm), and maximum operating frequency limits.
RJ45 Ethernet Pinout Diagram
Standard color-coded pinout wiring diagrams for RJ45 connectors showing both T568A and T568B straight-through and crossover configurations.
Standard Battery Sizes & Capacities
Physical dimensions, nominal voltages, and typical milliampere-hour (mAh) capacities for standard cylindrical and coin cell batteries.
Thermocouple Types, Colors & Temperature Ranges
Thermocouple reference chart detailing temperature limits, alloy compositions, and standard IEC/ANSI wire color codes for industrial sensors.
Standard Transformer Ratings (kVA)
Preferred nominal apparent power (kVA) and MVA ratings for single-phase and three-phase distribution and power transformers.
World Mains Voltage & Frequency Chart
Comprehensive global list of standard residential and industrial mains AC voltages (110V/220V), frequencies (50Hz/60Hz), and plug types by country.