{"product_id":"pc817c-optocoupler-dip4-sop4","title":"PC817C Optocoupler – DIP-4 and SOP-4 Variants","description":"\u003cp\u003ePC817C is a four-pin phototransistor optocoupler for electrically isolating a control signal from another circuit. Choose the DIP-4 through-hole or SOP-4 surface-mount package from the variant menu. Suitable for microcontroller interfaces, switching circuits, power supply feedback, and industrial control projects in Pakistan.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevice:\u003c\/strong\u003e PC817C infrared LED input with phototransistor output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePins:\u003c\/strong\u003e 4; pin 1 anode, pin 2 cathode, pin 3 emitter, pin 4 collector. Verify the orientation and package drawing before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCTR grade:\u003c\/strong\u003e C rank, typically specified as 200–400% at IF = 5 mA, VCE = 5 V and 25°C in PC817 series documentation. Check the marking and actual manufacturer's datasheet for your selected batch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackages:\u003c\/strong\u003e DIP-4 for through-hole mounting; SOP-4 for surface-mount assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Use an appropriate LED current-limiting resistor and output pull-up\/load resistor for your circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose Your Variant\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePC817C DIP:\u003c\/strong\u003e standard through-hole variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePC817C DIP Original:\u003c\/strong\u003e separately priced DIP option; confirm manufacturer and batch marking if a specific brand or approval is essential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePC817C SOP:\u003c\/strong\u003e surface-mount variant. Confirm land pattern and pin spacing before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSold per selected unit. Package shape, marking, and approvals can vary by batch. Do not infer a specific manufacturer, certification, or guaranteed isolation rating solely from the PC817C name; use the actual component datasheet for safety-critical designs.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a PC817C used for?\u003c\/h3\u003e\u003cp\u003eIt transfers a signal optically between an LED input and phototransistor output while separating the two circuits electrically.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between DIP and SOP?\u003c\/h3\u003e\u003cp\u003eDIP is a through-hole package; SOP is a surface-mount package. Select the package that matches your PCB footprint.\u003c\/p\u003e\n\u003ch3\u003eWhat does C grade mean?\u003c\/h3\u003e\u003cp\u003eIt identifies a current transfer ratio selection. PC817 series references commonly list C rank at 200–400% under the specified test conditions; confirm the selected part's marking and datasheet.\u003c\/p\u003e\n\u003ch3\u003eCan it connect to Arduino, ESP32 or STM32?\u003c\/h3\u003e\u003cp\u003eYes, in a properly designed signal interface. Select the LED series resistor and output pull-up to suit the logic voltage and required current.\u003c\/p\u003e\n\u003ch3\u003eDoes it isolate mains voltage?\u003c\/h3\u003e\u003cp\u003eOptocouplers provide an isolation barrier, but safe mains use depends on the exact certified part, PCB creepage and clearance, enclosure, and complete design.\u003c\/p\u003e\n\u003ch3\u003eIs PC817C suitable for high-speed data?\u003c\/h3\u003e\u003cp\u003eIt is generally used for relatively slow switching and isolation. Check propagation time for your application.\u003c\/p\u003e\n\u003ch3\u003eWhat is included?\u003c\/h3\u003e\u003cp\u003eOne unit of the selected PC817C DIP or SOP variant; other components are not included.\u003c\/p\u003e","brand":"Embeded Studio","offers":[{"title":"PC817C DIP","offer_id":62473443443058,"sku":"ES-PC817C-DIP","price":6.0,"currency_code":"PKR","in_stock":true},{"title":"PC817C DIP  ORIGNAL","offer_id":62473443475826,"sku":"ES-PC817C-DIP-ORIGINAL","price":26.0,"currency_code":"PKR","in_stock":true},{"title":"PC817C SOP","offer_id":62473443508594,"sku":"ES-PC817C-SOP","price":10.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/7935\/3202\/files\/PC817C.webp?v=1791569210","url":"https:\/\/embededstudio.com\/products\/pc817c-optocoupler-dip4-sop4","provider":"Embeded Studio","version":"1.0","type":"link"}