{"product_id":"prototype-to-production-electronic-components-dev-boards-passives","title":"Prototype-to-Production Electronic Components — Dev Boards, Passives, Crystals \u0026 Inductors | Single-Unit to Reel","description":"\u003ch2\u003eFrom First Prototype to Full Production — Every Component, One Supplier\u003c\/h2\u003e\u003cp\u003eThe journey from breadboard prototype to mass production PCB is full of component sourcing friction — minimum order quantities that don't fit prototype budgets, lead times that kill momentum, and suppliers who can't scale with you. Keszoox eliminates that friction.\u003c\/p\u003e\u003cp\u003eWe stock \u003cstrong\u003edevelopment boards, passive components, crystal oscillators, and power inductors\u003c\/strong\u003e in quantities from a single piece to full production reels — so the same supplier that ships your prototype parts today can fulfill your production BOM tomorrow.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eDevelopment Boards \u0026amp; Microcontroller Platforms\u003c\/h2\u003e\u003cp\u003eEvery great product starts with a prototype. Our development board inventory covers the most popular platforms used by hardware engineers worldwide:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003cth\u003eKey Variants In Stock\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eArduino\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNano, Uno R3, Mega 2560, Pro Mini, Leonardo\u003c\/td\u003e\n\u003ctd\u003eRapid prototyping, maker projects, education\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFPGA Boards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eXilinx Spartan-6, Artix-7, Kintex-7 eval boards\u003c\/td\u003e\n\u003ctd\u003eDigital logic, signal processing, custom hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNXP \/ ARM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLPC series, i.MX eval boards, FRDM kits\u003c\/td\u003e\n\u003ctd\u003eIndustrial IoT, motor control, connectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMicrochip PIC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePIC16F, PIC18F, PIC32 development kits\u003c\/td\u003e\n\u003ctd\u003eEmbedded control, automotive, consumer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay \u0026amp; Interface Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/2\/4\/8-channel relay modules, optocoupler boards\u003c\/td\u003e\n\u003ctd\u003eGPIO expansion, load switching, automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Modules\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-segment (1\/2\/4-digit), OLED, LCD character displays\u003c\/td\u003e\n\u003ctd\u003eUser interface, status indication, instrumentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eCrystal Oscillators \u0026amp; Timing Components\u003c\/h2\u003e\u003cp\u003eTiming is everything in digital design. A wrong crystal frequency or poor oscillator stability can derail an entire project. Our timing component inventory covers every standard frequency and package used in modern electronics:\u003c\/p\u003e\u003ch3\u003eSMD Crystal Resonators\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3225 (3.2×2.5mm)\u003c\/strong\u003e — Most common SMD crystal package; 8MHz, 12MHz, 16MHz, 20MHz, 25MHz, 32MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2016 (2.0×1.6mm)\u003c\/strong\u003e — Ultra-compact; ideal for space-constrained IoT and wearable designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1612 (1.6×1.2mm)\u003c\/strong\u003e — Miniature; Bluetooth, WiFi module timing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32.768kHz SMD\u003c\/strong\u003e — RTC crystal; 3215, 2012 packages; ±20ppm standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThrough-Hole Crystal Resonators\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHC-49S (low profile)\u003c\/strong\u003e — Industry standard; 4MHz–40MHz; ±30ppm, ±20ppm, ±10ppm tolerance options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHC-49U (full height)\u003c\/strong\u003e — Legacy designs and high-vibration environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylindrical (2×6mm)\u003c\/strong\u003e — 32.768kHz RTC; watch crystal form factor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOscillator Modules (Active)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTCXO\u003c\/strong\u003e — Temperature-compensated; ±2.5ppm over −40°C to +85°C; GPS, cellular, precision timing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVCXO\u003c\/strong\u003e — Voltage-controlled; frequency synthesis, PLL applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-can oscillators\u003c\/strong\u003e — DIP-14, SMD 5×7mm; 1MHz–200MHz; CMOS\/TTL output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Frequencies In Stock\u003c\/h3\u003e\u003cp\u003e1MHz, 2MHz, 4MHz, 6MHz, 8MHz, 10MHz, 12MHz, 16MHz, 20MHz, 24MHz, 25MHz, 27MHz, 32MHz, 40MHz, 48MHz, 50MHz, 100MHz, 125MHz — plus 32.768kHz for RTC applications.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eSMD Power Inductors — Full Range\u003c\/h2\u003e\u003cp\u003ePower inductors are the unsung heroes of every switching power supply, DC-DC converter, and EMI filter. Our SMD inductor inventory covers the full range of values, current ratings, and package sizes demanded by modern power electronics design:\u003c\/p\u003e\u003ch3\u003eShielded Power Inductors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage sizes\u003c\/strong\u003e: 2520, 3015, 4020, 4040, 5050, 6060, 7070, 8080\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInductance values\u003c\/strong\u003e: 1µH, 2.2µH, 3.3µH, 4.7µH, 6.8µH, 10µH, 22µH, 33µH, 47µH, 68µH, 100µH, 150µH, 220µH, 330µH, 470µH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent ratings\u003c\/strong\u003e: 0.5A to 20A saturation current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDCR\u003c\/strong\u003e: From 8mΩ (high-current) to 15Ω (high-inductance)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCoupled Inductors \u0026amp; Transformers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoiltronics CTX series\u003c\/strong\u003e — CTX280-4 and compatible; SEPIC, flyback, forward converter applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon-mode chokes\u003c\/strong\u003e — SMD; 90Ω–900Ω @ 100MHz; USB, Ethernet, power line filtering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFerrite bead inductors\u003c\/strong\u003e — 0402, 0603, 0805; 25Ω–600Ω @ 100MHz; EMI suppression\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWirewound \u0026amp; Toroidal Inductors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eToroidal power inductors for high-efficiency DC-DC converters\u003c\/li\u003e\n\u003cli\u003eAxial wirewound inductors for through-hole power supply designs\u003c\/li\u003e\n\u003cli\u003eRF inductors (0402, 0603) for impedance matching and filtering\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eCapacitors — Every Type, Every Value\u003c\/h2\u003e\u003cp\u003eCapacitors are the highest-volume passive component in any BOM. Our inventory covers all dielectric types, package sizes, and voltage ratings to support every stage of your design:\u003c\/p\u003e\u003ch3\u003eMLCC — Multilayer Ceramic Capacitors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage sizes\u003c\/strong\u003e: 0201, 0402, 0603, 0805, 1206, 1210, 1812, 2220\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDielectric\u003c\/strong\u003e: C0G\/NP0 (precision, stable), X5R, X7R (general purpose), Y5V (high capacitance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValues\u003c\/strong\u003e: 1pF to 100µF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage ratings\u003c\/strong\u003e: 6.3V, 10V, 16V, 25V, 50V, 100V, 250V, 500V, 1000V, 2000V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-voltage MLCC\u003c\/strong\u003e: 1kV–3kV for power electronics and snubber circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAluminum Electrolytic Capacitors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadial THT\u003c\/strong\u003e: 5mm, 7.5mm, 10mm lead spacing; 6.3V–450V; 0.1µF–10,000µF; 85°C and 105°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMD (V-chip)\u003c\/strong\u003e: 4×5.4mm to 10×10.2mm; low-profile and standard height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnap-in\u003c\/strong\u003e: Large can; 35V–450V; 100µF–100,000µF; power supply bulk storage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTantalum Capacitors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMD tantalum\u003c\/strong\u003e: Case A (3216), B (3528), C (6032), D (7343); 2.5V–35V; 0.1µF–330µF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolymer tantalum\u003c\/strong\u003e: Ultra-low ESR; ideal for CPU\/FPGA decoupling and high-frequency filtering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFilm Capacitors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCBB (Polypropylene)\u003c\/strong\u003e: 63V–1000V; 1nF–10µF; low loss, high stability; audio and power applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePET (Polyester)\u003c\/strong\u003e: 63V–630V; general purpose bypass and coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eX2 \/ Y2 Safety Capacitors\u003c\/strong\u003e: AC line filtering; UL\/VDE\/CQC certified; 275VAC X2, 250VAC Y2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCeramic Disc Capacitors\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e50V–3000V; 1pF–100nF; high-voltage bypass and coupling\u003c\/li\u003e\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003ePassive Components — Resistors \u0026amp; More\u003c\/h2\u003e\u003ch3\u003eResistors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMD Chip Resistors\u003c\/strong\u003e: 0201, 0402, 0603, 0805, 1206, 2512; ±1% standard, ±0.1% precision; 1Ω–10MΩ; 1\/20W–2W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Film THT\u003c\/strong\u003e: 1\/4W, 1\/2W, 1W; ±5%; color-coded; bulk pack available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Film THT\u003c\/strong\u003e: 1\/4W, 1\/2W; ±1%, ±0.5%; low noise; precision applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWirewound Power\u003c\/strong\u003e: 2W–25W; cement and aluminum-housed; high-current sensing and braking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Sense Resistors\u003c\/strong\u003e: 0.001Ω–0.1Ω; ±1%; 2512, 4527 packages; motor control and power monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLEDs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHT LEDs\u003c\/strong\u003e: 3mm, 5mm, 10mm; red, green, blue, yellow, white, orange, UV, IR; 20mA standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMD LEDs\u003c\/strong\u003e: 0402, 0603, 0805, 1206; single color and RGB; high-brightness options\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePin Headers \u0026amp; Connectors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2.54mm single\/double row male\/female headers; breakaway strips; right-angle and vertical\u003c\/li\u003e\n\u003cli\u003e2.0mm and 1.27mm pitch headers for compact PCB designs\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eOrdering Flexibility — Prototype Quantities to Production Reels\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eStage\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003cth\u003eKeszoox Solution\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProof of Concept\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1–10 pcs\u003c\/td\u003e\n\u003ctd\u003eCut tape \/ loose\u003c\/td\u003e\n\u003ctd\u003eSingle-unit orders accepted, no MOQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngineering Sample\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–100 pcs\u003c\/td\u003e\n\u003ctd\u003eCut tape \/ tray\u003c\/td\u003e\n\u003ctd\u003eStandard pricing, fast dispatch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePilot Production\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–1,000 pcs\u003c\/td\u003e\n\u003ctd\u003eCut tape \/ partial reel\u003c\/td\u003e\n\u003ctd\u003eVolume pricing available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMass Production\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000+ pcs\u003c\/td\u003e\n\u003ctd\u003eFull reel (T\u0026amp;R) \/ tray\u003c\/td\u003e\n\u003ctd\u003eCompetitive bulk pricing, CoC included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eCan I mix different components in one order?\u003c\/h3\u003e\u003cp\u003eYes. You can order multiple component types — dev boards, capacitors, inductors, crystals — in a single order. All items ship together in one consolidated package, saving on shipping costs.\u003c\/p\u003e\u003ch3\u003eDo you stock crystals for specific microcontroller requirements?\u003c\/h3\u003e\u003cp\u003eYes. We stock crystals optimized for common MCU clock requirements including 8MHz (Arduino Uno), 16MHz (Arduino Nano\/Mega), 12MHz (USB full-speed), 25MHz (Ethernet PHY), and 32.768kHz (RTC). Contact us if you need a specific frequency not listed.\u003c\/p\u003e\u003ch3\u003eWhat inductor specifications should I check before ordering?\u003c\/h3\u003e\u003cp\u003eKey parameters to verify: inductance value (L in µH), saturation current (Isat), RMS current (Irms), DC resistance (DCR), and self-resonant frequency (SRF). Our team can help cross-reference inductors if you provide your switching frequency and current requirements.\u003c\/p\u003e\u003ch3\u003eAre your MLCC capacitors AEC-Q200 qualified for automotive use?\u003c\/h3\u003e\u003cp\u003eWe stock both standard-grade and AEC-Q200 automotive-grade MLCCs. Specify automotive grade when ordering and we will confirm availability of the appropriate qualification level.\u003c\/p\u003e\u003ch3\u003eCan I get a sample kit of passive components for evaluation?\u003c\/h3\u003e\u003cp\u003eYes. We can assemble custom sample kits of resistors, capacitors, inductors, or crystals based on your value range requirements. Contact our team with your specifications for a custom kit quote.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":49039584362731,"sku":null,"price":1.13,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/1_26a60f75-1cee-4b3b-ad1b-9786806b31d2.jpg?v=1783744085","url":"https:\/\/keszoox.com\/products\/prototype-to-production-electronic-components-dev-boards-passives","provider":"Keszoox","version":"1.0","type":"link"}