{"product_id":"100pcs-quartz-crystal-resonator-hc-49s-9mhz-passive-oscillator","title":"100PCS HC-49S 9MHz Quartz Crystal Resonator Passive Oscillator","description":"\u003ch2\u003eNioCen HC-49S 9MHz Quartz Crystal Resonators – 100-Piece Pack\u003c\/h2\u003e\n\u003cp\u003eKeep your electronics projects running with precision timing. This 100-piece pack of \u003cstrong\u003eNioCen HC-49S 9MHz passive quartz crystal resonators\u003c\/strong\u003e delivers stable, accurate clock signals for microcontrollers, PCBs, and a wide range of DIY and professional electronic circuits. The industry-standard HC-49S low-profile through-hole package makes these easy to solder onto any compatible board.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 9 MHz – precise and consistent across all 100 units\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e HC-49S in-line (through-hole) — low-profile, space-saving design\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Passive quartz crystal resonator (requires external load capacitors)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 100 pieces per pack — ideal for prototyping, repairs, and production runs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for Arduino, AVR, PIC, STM32, and other microcontroller platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh stability:\u003c\/strong\u003e Quartz construction ensures reliable oscillation and low frequency drift\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Standard 2-pin through-hole leads fit breadboards and PCBs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrocontroller clock sources (Arduino, AVR, PIC, etc.)\u003c\/li\u003e\n  \u003cli\u003ePCB prototyping and electronics repair\u003c\/li\u003e\n  \u003cli\u003eCommunication circuits and serial interfaces\u003c\/li\u003e\n  \u003cli\u003eDigital timing and clock generation circuits\u003c\/li\u003e\n  \u003cli\u003eEducational and hobbyist electronics projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100 × HC-49S 9MHz Quartz Crystal Resonators\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is an HC-49S quartz crystal resonator and how does it work?\u003c\/h4\u003e\n\u003cp\u003eA: An HC-49S quartz crystal resonator is a passive electronic component that vibrates at a precise frequency (9 MHz in this case) when voltage is applied. It is used to provide a stable clock signal for microcontrollers and digital circuits. Being passive, it requires external load capacitors (typically 22pF) to oscillate correctly in your circuit.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these 9MHz quartz crystals compatible with Arduino and AVR microcontrollers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The HC-49S 9MHz crystal resonators are fully compatible with Arduino boards, AVR microcontrollers (such as ATmega series), PIC chips, STM32, and most other common microcontroller platforms that support an external crystal clock source. Simply connect the crystal between the XTAL1 and XTAL2 pins with appropriate load capacitors.\u003c\/p\u003e\n\u003ch4\u003eQ: Why buy a 100-piece pack of quartz crystal resonators?\u003c\/h4\u003e\n\u003cp\u003eA: A 100-piece bulk pack is perfect for electronics hobbyists, PCB designers, educators, and repair technicians who need a reliable supply on hand. Having extras ensures you can prototype freely, replace faulty components quickly, and complete production runs without delays — all at a cost-effective per-unit price.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is an HC-49S quartz crystal resonator and how does it work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An HC-49S quartz crystal resonator is a passive electronic component that vibrates at a precise frequency (9 MHz in this case) when voltage is applied. It is used to provide a stable clock signal for microcontrollers and digital circuits. 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Having extras ensures you can prototype freely, replace faulty components quickly, and complete production runs without delays — all at a cost-effective per-unit price.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"100PCS HC-49S 9MHz Quartz Crystal Resonator Passive Oscillator\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/100pcs-quartz-crystal-resonator-hc-49s-9mhz-passive-oscillator\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44168319565911,"sku":"\u003cnone\u003e","price":20.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/Saeab628348bd4925a452430b205ebd928.webp?v=1786770650","url":"https:\/\/axlcustomersupport.com\/products\/100pcs-quartz-crystal-resonator-hc-49s-9mhz-passive-oscillator","provider":"Axl","version":"1.0","type":"link"}