Sarah Kim
Applications Engineer
Seoul, South Korea
Sarah works on customer design reviews at PartsCube Global, helping engineers match parts to real board constraints. She previously designed power supplies at a Seoul-based electronics firm.
Articles by Sarah Kim (19)
Connectors & Interconnects for Asset Tracking: Design Tips & Component Selection
Practical guide to selecting connectors for BLE and GPS asset trackers — battery contacts, antenna RF interfaces, board-to-board stacking, and environmental sea
How to Select and Source TVS Diodes for 24V Industrial Control Systems
A practical guide to TVS diode selection for 24V industrial control — clamping voltage, peak pulse power, and sourcing strategies for IEC 61000-4-5 compliance.
Connectors & Interconnects for Battery Management Systems: Design Tips & Component Selection
Practical connector selection guide for BMS designs — covering sense-wire connectors, high-current interconnects, and reliability considerations for 2026 batter
Why Knowles Syfer Components Are Trusted Worldwide: A Deep Dive
Knowles Syfer MLCCs — safety-certified capacitors, StackiCap high-voltage, FlexiCap soft termination, and non-magnetic C0G. Specs, part numbers, and application
TVS Diode Selection for RS-485 & CAN Bus Protection: Key Specs Compared
Compare TVS diode specs for RS-485 and CAN bus protection — SM712 vs NUP2105LT1G vs CDSOT23-T24CAN, with clamping voltage, capacitance, and layout guidance for
Top 10 Vishay Dale Parts Every Hardware Engineer Should Know
Ten Vishay Dale part numbers that appear in virtually every power supply, motor drive, and BMS design — with specs, applications, and sourcing tips for each.
Why Vishay Dale Components Are Trusted Worldwide: A Deep Dive
Explore why Vishay Dale resistors, inductors, and passives dominate mil-spec, automotive, and industrial designs — with real series data and sourcing tips.
Power Inductor Showdown: Shielded vs Unshielded for DC-DC Converter Designs
Shielded vs unshielded SMD power inductors for DC-DC converters. Compare saturation current, DCR, EMI, and real part numbers to pick the right inductor for your
Resistors for Power Supplies: Design Tips & Component Selection
How to choose the right resistors for power supply designs — current sensing shunts, feedback dividers, thermal derating, and real part recommendations.
How to Choose the Right Resistors: A Buyer's Checklist
A systematic resistor buyer's checklist covering tolerance, TCR, power derating, pulse load, anti-sulfur requirements, and cost benchmarks for 2026 designs.
Top 10 Knowles Syfer Parts Every Hardware Engineer Should Know
Discover the top 10 Knowles Syfer MLCCs and EMI suppression parts every hardware engineer needs for power designs, from high-voltage capacitors to FlexiCap range.
Power Inductors Selection Guide: Specs, Packages & Top Picks
Master power inductor selection — saturation current, DCR, core materials, and shielded vs unshielded. Top power inductor picks for DC-DC converters in 2026.
Rocker Switches Selection Guide: Specs, Packages & Top Picks
Selecting rocker switches for power control — current rating, cutout size, illumination, IP rating, and top models from Carling, NKK, E-Switch, and more.
Voltage Regulators Selection Guide: Specs, Packages & Top Picks for Power Design
A hands-on guide to LDO and switching regulator selection — dropout voltage, PSRR, thermal design, and the best regulator parts for common power rails in 2026.
SiC vs GaN: Wide Bandgap Semiconductors for Power Electronics
SiC vs GaN comparison for power electronics. When to use each, popular parts, Chinese manufacturers, and sourcing challenges.
Huaqiangbei vs Silicon Valley vs Singapore: Where to Source Electronic Components
The same component costs differently in Shenzhen, Silicon Valley, and Singapore. Compare pricing, traceability, and availability across the three major electronics markets.
Electronic Component Packaging: Tape and Reel vs Tube vs Tray — What Buyers Need
The right part in the wrong packaging stops production. Learn tape and reel formats, MSL handling, tray vs tube, and what to check before ordering.
Common Logic IC Families: 74HC vs 74LS vs 4000 Series — When to Use Which
Choose the wrong logic family and your circuit won't interface. Compare 74HC, 74LS, 4000, and 74LVC series — specs, compatibility, and Chinese alternatives.
How to Choose the Right Voltage Regulator: LDO vs DC-DC Guide
LDO vs switching regulator? Complete selection guide with popular part numbers, Chinese alternatives, and a checklist. Covers LM317, AMS1117, LM2596, and more.