74HC595 Segment Drive: Current Limits and Heat
A 74HC595 is a logic driver, not an LED driver: 35 mA is a damage threshold, 6 mA is the design point, and eight segments add...
Read article210 Products
From the desk
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
A 74HC595 is a logic driver, not an LED driver: 35 mA is a damage threshold, 6 mA is the design point, and eight segments add...
Read article
An accurate BOM is the starting point for a reliable electronic component quotation. Learn how EMS, PCBA, and OEM procurement teams can prepare better RFQs with...
Read article
USB-C is a connector, not a speed. CC roles, PD power, 85 ohm SuperSpeed pairs and the five mistakes that stop a port from working.
Read article
Check pinout, flash page size and SRAM before moving a design from STM32F103RBT6 to the higher-density RCT6 or RET6 in the same LQFP64 footprint.
Read article
The schematic sets efficiency; the layout sets temperature. Hot loop, input capacitor ripple, switch-node ringing, thermal vias, and the loss budget that decides the copper.
Read article
A partial reel is cheaper per piece and riskier per failure. Tape anatomy, count tolerance, moisture history, and the five clauses that prevent most surprises.
Read article
Work out whether a 7805 can power your board: check its pins, input headroom, realistic heat budget and the changes required for a buck replacement.
Read article
A receiving routine that holds up in an audit: ISO 2859-1 sampling, AQL by part class, cheap-to-expensive test order, and records someone else can reproduce.
Read article