WIKI
Electronics Reference Wiki
Technical reference for hardware engineers and buyers sourcing electronics from China. Components, certifications, manufacturing — explained from a sourcing perspective.
Components & Modules
Reference specs for commonly sourced electronic components and wireless modules.
76–81 GHz FMCW radar modules for ADAS sourced from China: TI AWR/NXP TEF810x chipsets, AEC-Q100 verification, Chinese OEMs, and FCC/ETSI compliance.
USCAR-2 automotive connectors sourced from China: Deutsch DT/DTM, TE AMP Superseal, Molex MX150, LV-214 specs, fake connector detection, and PPAP.
Automotive TFT/IPS/AMOLED display modules from China: −40°C to 85°C range, CISPR 25 compliance, MIPI DSI/LVDS interfaces, and Chinese OEM panel suppliers.
BLE 5.x modules from China: nRF52840 vs nRF52832 vs EFR32BG22 compared, certified Chinese suppliers, version differences, and FCC/CE grant verification.
Ultimate guide to sourcing board-to-board (BTB) connectors from China. Compare Chinese clones vs OEM originals, stacking heights, fine-pitch risks, and…
D-Sub connectors sourced from China: DB9, DB15, DB25, HD-15 shell sizes, contact types, EMC backshell options, and quality issues in Chinese production.
Learn how to source reliable DC barrel power connectors from China. Covers 5.5/2.1mm vs 5.5/2.5mm standards, PCB vs panel mount, locking variants, and…
ESP32 module families compared for China sourcing: ESP32 vs S3 vs C3 vs H2, WROOM vs WROVER, certified suppliers, and clone module failure modes to avoid.
EV onboard charger modules from China: 3.3–22kW AC/DC, bidirectional V2G OBC, UL 2202/IEC 62477 compliance, and Chinese OEM qualification risks.
FPC vs FFC connectors from China: 0.5–1.25mm pitch, ZIF vs LIF lock types, actuation cycle life, camera module connectors, and common failure modes.
GaN charger ICs for OEM manufacturing in China: Navitas, Innoscience, Power Integrations topologies, USB PD 3.1 EPR, BOM cost, and UL 62368-1 compliance.
HDMI and DisplayPort connectors from China: HDMI licensing, version bandwidth, royalty-free DP advantage, impedance specs, and high-speed failure modes.
XT30/XT60/XT90, Anderson Powerpole, and EC3/EC5/EC8 battery connectors from China: current ratings, contact resistance specs, Amass vs clone detection.
IGBT modules explained for buyers: voltage classes, packages, IGBT vs MOSFET vs SiC, and how to source and verify modules from China without counterfeits.
Industrial Ethernet switches from China: managed vs unmanaged, DIN rail, IEC 61850-3, IEEE 1588v2 PTP, EMC levels, and evaluating Chinese vendors.
JST PH, XH, GH, and SH connectors from China: pitch and current ratings, genuine vs clone tolerances, wire gauge compatibility, and failure modes.
How to source LiDAR sensor modules from China. Compare Hesai, Livox, Robosense; 905nm vs 1550nm; export controls; and ROS integration.
LiPo and Li-ion cells from China: energy density, C-rate, cycle life, Chinese manufacturers, Grade A vs B distinction, and UN 38.3 transport compliance.
Guide to sourcing lithium battery management systems (BMS) from China: protection ICs, cell balancing, and IEC 62133 compliance.
LoRa and LoRaWAN modules from China: SX1276 vs SX1262 chipsets, regional frequency bands, FCC/CE/TELEC certification, and supplier evaluation.
M12 connectors from China: A–X/T coding variants, IP67/IP68/IP69K ratings, Ethernet D/X-coding, locking types, and IP rating validation on Chinese parts.
M8, M16, and M23 circular connectors from China: IEC 61076-2-104 specs, servo motor and encoder wiring, contact resistance, and counterfeit detection.
Source MIPI CSI/DSI camera and display FPC connectors from China. Pin counts, ZIF types, lane configs, signal integrity limits, and non-standard pinouts.
NXP TEF810X 77GHz radar transceiver: 3TX/4RX RFCMOS specs, S32R companion MCU pairing, AEC-Q100 grade verification, and sourcing the chip from China.
OBD-II modules from China: ELM327 clones and genuine, J2534 pass-thru, ISO 15765/J1850/KWP2000 protocol stacks, Bluetooth/WiFi variants, fake detection.
Pin headers and Dupont connectors from China: 2.54/2.0/1.27mm pitch, brass vs gold plating, current ratings, through-hole vs SMD, SIL/DIL types.
Pressure sensors from China: MEMS piezoresistive vs capacitive, key specs, Chinese and international manufacturers, IP ratings, and IEC 61298 accuracy.
RF connectors from China: SMA, RP-SMA, MMCX, U.FL/IPEX, BNC, and N-type — VSWR limits, gold plating requirements, frequency ranges, and polarity mistakes.
RJ45 connectors from China: Cat5e/Cat6/Cat6A jack specs, integrated magnetics quality, PoE contact ratings, industrial IP67 variants, and failure modes.
SAE J1939 modules and CAN-to-MQTT gateways from China: PGN/SPN structure, 250/500 kbps variants, 29-bit frame, connector pinout, and vendor vetting.
SD and microSD connectors from China: push-push vs push-pull actuation, mating cycle life, SIM/SD combo types, SMD footprint, and failure modes.
Complete guide to sourcing CAN bus transceivers and interface modules from China. Covers ISO 11898, CAN FD, AEC-Q100, OBD-II gateways, and factory…
DIN rail terminal blocks from China: screw, cage clamp, and spring clamp types, IEC 60947-7-1 and UL 508 compliance, pitch variants, and how to verify.
Tuya powers most white-label smart home devices from China: the OEM app model, Arabic language support, Alexa/Google integration, and cloud-region…
USB-A, Micro-B and Mini-B connectors from China: mating cycles, counterfeit USB 3.0 detection, Micro-B retention force testing, and key Chinese suppliers.
Expert guide to sourcing USB-C connectors from China. Learn how to verify PD 3.1 240W ratings, gold plating thickness, PCB retention, and detect…
Complete guide to sourcing IP67/IP68 waterproof circular connectors (GX12, GX16, GX20, SP21) from China. Learn specifications, avoid fake aviation…
Wi-Fi 6 and Wi-Fi 6E modules from China: Qualcomm QCN9074, MediaTek MT7921, ESP32-C5 for IoT, TWT savings, and FCC/CE 6 GHz certification.
Zigbee modules from China: CC2652R vs EFR32MG24, Matter over Thread certification, TLSR8258 Tuya compatibility, CSA Zigbee 3.0 costs and interoperability.
Standards & Certifications
Regulatory requirements and certification processes for selling electronics globally.
Master CE marking for electronics imported from China. Understand RED, LVD, and EMC Directive scope, technical file requirements, and the self-declaration…
FCC certification for US-market electronics from China: Part 15 SDoC vs TCB, modular approval for ESP32 and nRF52, test costs, timelines, and lab options.
China electronics: VDE-AR-N 4110/4120, TCR certification and NA protection. Conformity evidence for German and European grid connection.
IATF 16949:2016 for automotive buyers: scope limits, PPAP Levels 1–5, verifying Chinese factory certificates, and what factory audits actually cost.
IEC 60335 is the safety standard for household electrical appliances: what it covers, how it differs from IEC 62368, and its role in Saudi SASO conformity.
IEC 62133-2:2017 lithium battery safety certification: CB Scheme, test scope, accredited Chinese labs, costs, and pack-level vs cell-level certification.
IPC-A-610H for electronics from China: Class 1/2/3 quality levels, BGA void limits, common SMT defect categories, and how to specify class in POs.
ISO 26262 for automotive electronics from China: ASIL A–D levels, HARA, PMHF/SPFM metrics, certification costs, and evaluating Chinese supplier claims.
Matter smart home certification for China-sourced devices: CSA process, costs, DAC/PAI/CD components, and engineering decisions that affect your timeline.
REACH SVHC compliance for electronics from China: Article 33 obligations, SCIP database registration, valid supplier declarations, and chemical testing.
RoHS 2 compliance for electronics from China: 10 restricted substances, concentration limits, exemptions, valid declarations, and testing options.
Comprehensive guide to SABER certification for Saudi Arabia imports. Learn how PCoC and SCoC certificates work, SASO compliance, FASAH customs clearance…
Complete guide to SASO 2902:2023 lighting efficiency standards for Saudi Arabia. Learn the 90 lm/W LED minimum, SABER certification steps, and compliance…
Complete guide to SASO certification for exporting electronics to Saudi Arabia. Covers SABER registration, IEC 62368, SASO 2902, 60Hz requirements, and…
TELEC/MIC type approval for electronics from China sold in Japan: Radio Law scope, ARIB standards, module-level approval paths, costs, and bodies.
The Type G (BS 1363) plug is required in Saudi Arabia and the UK. Pinout, the mandatory 13A fuse, 220V/60Hz, and what to specify to a China factory.
Navigate UKCA marking for electronics imported from China. Learn the post-Brexit requirements, RER 2017 standards, and compliance steps for the UK market.
Comprehensive guide to UL certification for electronics sourced from China. Learn the difference between UL Listed vs. Recognized, and how it compares to…
UN 38.3 lithium battery testing for air freight from China. 8 mandatory tests, accredited labs, costs, and documentation that airlines require.
Manufacturing Processes
Technical reference for PCB fabrication, SMT assembly, inspection, and quality systems.
AQL sampling plans per ANSI/ASQ Z1.4 for electronics inspection from China: lot-to-sample tables, defect classification, and pass/fail interpretation.
BOM management for China-sourced electronics: required columns, MPN vs generic specs, lifecycle status, AVL strategy, Chinese distributor verification.
Conformal coating for China-manufactured PCBAs: material selection, application methods, thickness specs, and IPC-CC-830B quality inspection criteria.
PCB DFM rules for China manufacturing: trace spacing, via sizing, component clearances, stencil aperture ratios, fiducials, and test point layout.
ESD protection for China-sourced electronics: HBM/CDM models, TVS diode selection, PCB layout rules, IEC 61000-4-2 compliance, and ESD-safe factory specs.
PCB fabrication data for Chinese factories: RS-274X Gerber format, Excellon drill files, ODB++, IPC-2581, and correct board parameter specification.
PCB laminate materials for China sourcing: FR4, Rogers 4003C/4350B, PTFE, MCPCB, and polyimide compared by dielectric properties and cost multipliers.
Reflow soldering profiles for China PCB assembly: SAC305 lead-free and Sn63Pb37 leaded zone temperatures, ramp rates, and J-STD-020 moisture sensitivity.
SMT assembly for China-sourced PCBAs: solder paste printing, pick-and-place, reflow, and inspection stages — essential before auditing a Chinese factory.
Thermal interface materials for China-built electronics: grease, gap pads, gap fillers and PCM compared by W/m·K — how to spec, source, and verify them.
X-ray inspection for PCBAs from China: BGA void analysis per IPC-7095C, 2D vs 3D AXI, equipment types, sampling strategy, and specifying requirements.
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