How to read an XRF coating report for tin-plated terminals
Review substrate and coating models, measurement position, focus and calibration range before accepting an XRF thickness...
Guide | Technical Guides & Company Updates — Page 11
Explore Hongchuan Metals technical guides, product information and company updates. Review PCB busbar, solder terminal and SMT nut selection considerations alongside the product catalog.
SMT nut torque-out versus screw tightening torque
Separate torque-out, assembly tightening torque and pushout force, then define PCB, screw and fixture conditions for use...
Pulsed busbar current explained with RMS and I²t
A worked 200 A pulse example separates average, RMS and peak current, with limits for heating estimates, measurement and...
Copper busbar infrared measurement and emissivity errors
Understand emissivity, reflections and spot size when measuring copper busbars, with reference-patch and contact-tempera...
PCB terminal resistance testing with four-wire Kelvin sensing
A practical guide to Kelvin probe placement, connection boundaries, thermal offsets and repeatable low-resistance measur...
How to select PCB welding terminals for DC microgrid protection units: fault current, isolation and temperature validation
PCB welding terminals in DC microgrid protection units face continuous load, short fault current, contactor operation an...
How to select SMT nuts for railway signal controllers: EMI grounding, vibration and repeated-service validation
SMT nuts in railway signal controllers must support shield fastening, grounding continuity, vibration and repeated servi...
How to select copper-aluminum connectors for mobile energy-storage trailers: transport vibration, thermal cycling and corrosion validation
Copper-aluminum connectors in mobile energy-storage trailers face high-current cycling, road vibration, temperature chan...
How to select PCB welding terminals for airport baggage conveyor VFDs: start-stop, vibration and service validation
PCB welding terminals in airport baggage conveyor VFDs face frequent starts, jam current, vibration and service. This gu...
How to select an SMD busbar for an industrial chiller compressor inverter: start current, ripple and temperature validation
SMD busbars in industrial chiller compressor inverters face start current, DC-link ripple, load cycling and restricted a...
How to select an SMD busbar for arc-welding inverters: pulsed load, dust and soldering validation
SMD busbars in arc-welding inverters face ignition pulses, duty-cycle changes, metal dust and frequent thermal cycling. ...
How to select SMT nuts for EV coolant-pump controllers: EMI grounding, vibration and torque validation
SMT nuts in EV coolant-pump controllers must support low-profile assembly, EMI grounding, vibration and service removal....