{"product_id":"5-1pcs-dc-3v-3-3v-isolated-drive-control-board-output-signal-indicator-high-level-driver-module-high-level-trigger-relay-module","title":"5-1PCS DC 3V\/3.3V Isolated Drive Control Board Output Signal Indicator High Level Driver Module High Level Trigger Relay Module","description":"\u003cdiv style=\"font-family: Arial, sans-serif; line-height: 1.6; letter-spacing: 0.02em; color: #222; font-size: 14px;\"\u003e\n\n  \u003c!-- ATTENTION: TITLE + HOOK --\u003e\n  \u003ch1 style=\"font-size: 20px; font-weight: 700; margin: 0 0 10px; color: #111;\"\u003e\n    5‑1PCS DC 3V\/3.3V Isolated Drive Control Board – High Level Trigger Relay Module with Signal Indicator\n  \u003c\/h1\u003e\n\n  \u003cp style=\"margin: 0 0 12px; max-width: 780px;\"\u003e\n    Power up your DIY electronics, smart home projects, and automation builds with a relay module that just works.  \n    This DC 3V\/3.3V Isolated Drive Control Board is designed for makers, students, and engineers who want safe, stable, and\n    easy control of high‑power loads from low‑voltage microcontrollers. With optical isolation, clear signal indication,\n    and a user‑friendly layout, it turns your ideas into reliable, real‑world switching in seconds.\n  \u003c\/p\u003e\n\n  \u003c!-- INTEREST: KEY BENEFITS \/ FEATURES --\u003e\n  \u003ch2 style=\"font-size: 16px; font-weight: 700; margin: 18px 0 8px; color: #111;\"\u003e\n    ⭐ Key Benefits \u0026amp; Features\n  \u003c\/h2\u003e\n\n  \u003cul style=\"margin: 0 0 14px 18px; padding: 0; max-width: 780px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eEasy High‑Level Trigger from MCU:\u003c\/strong\u003e  \n      Connect directly to your microcontroller I\/O pins (3V\/3.3V) and drive the relay with a simple high‑level signal.  \n      No complex circuitry – perfect for Arduino, ESP32, Raspberry Pi (3.3V logic) and more.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eSafe Optical Isolation:\u003c\/strong\u003e  \n      Built‑in optocoupler (EL817) separates your low‑voltage control side from the high‑power load side, helping protect\n      your board and project from noise, spikes, and accidental shorts.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eClear Output Signal Indicator:\u003c\/strong\u003e  \n      A bright onboard LED shows when the relay is active, so you can \u003cem\u003esee\u003c\/em\u003e your signal at a glance – ideal for\n      testing, debugging, and classroom demos.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eDual Power Supply Design:\u003c\/strong\u003e  \n      Separate power for control and load sides improves anti‑interference performance and stability, especially in\n      noisy environments like motors, pumps, or power tools.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eDiode Continuity Protection:\u003c\/strong\u003e  \n      Integrated protection diode helps guard against reverse current and voltage spikes from inductive loads, extending\n      the life of both the relay and your connected devices.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eFast Response, Long Life:\u003c\/strong\u003e  \n      Response time under 20 ms and relay life up to 100,000 operations mean smooth, click‑fast switching you can rely on\n      for repeated automation tasks.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eHandles Real‑World Loads:\u003c\/strong\u003e  \n      Control up to \u003cstrong\u003e10A 250VAC\u003c\/strong\u003e or \u003cstrong\u003e10A 30VDC\u003c\/strong\u003e – ideal for lamps, small appliances, fans,\n      solenoids, and other medium‑power devices in your projects.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eCompact \u0026amp; User‑Friendly Layout:\u003c\/strong\u003e  \n      Slim board (70 × 20 × 17 mm) fits easily into project boxes and breadboard‑style setups, with clearly labeled pins\n      that make wiring straightforward even for beginners.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eGreat for Learning \u0026amp; Prototyping:\u003c\/strong\u003e  \n      Whether you are building your first smart switch or refining a professional prototype, this module gives you a\n      simple, visual, and safe way to control mains‑level or DC loads.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- USE‑CASES --\u003e\n  \u003ch2 style=\"font-size: 16px; font-weight: 700; margin: 18px 0 8px; color: #111;\"\u003e\n    💡 Where This Module Shines\n  \u003c\/h2\u003e\n\n  \u003cul style=\"margin: 0 0 14px 18px; padding: 0; max-width: 780px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003eSmart home projects – control lights, fans, or sockets from your microcontroller.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003eDIY automation – timers, sensor‑based switching, and remote‑controlled devices.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003eEducational kits – demonstrate isolation, relays, and digital control in class.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003ePrototyping – quickly test how your code interacts with real‑world loads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- SPECIFICATIONS TABLE --\u003e\n  \u003ch2 style=\"font-size: 16px; font-weight: 700; margin: 18px 0 8px; color: #111;\"\u003e\n    📊 Specifications\n  \u003c\/h2\u003e\n\n  \u003ctable cellspacing=\"0\" cellpadding=\"6\" border=\"0\" style=\"border-collapse: collapse; max-width: 520px; font-size: 13px; margin: 0 0 16px;\"\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; width: 40%; background:#f7f7f7;\"\u003eProduct Type\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eIsolated Drive Control Board \/ High Level Trigger Relay Module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eInput Voltage\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eDC 3V \/ 3.3V (high‑level trigger)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eMain Components\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eOptocoupler EL817, Relay SRD‑DC03V‑SL‑C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eLoad Capacity\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003e10A 250VAC, 10A 30VDC (max)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eIsolation\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eOptical isolation between control and load sides\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eProtection\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eDiode continuity \/ reverse current protection\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eResponse Time\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003e\u0026lt; 20 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eRelay Life\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eUp to 100,000 operations (continuous use)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eProduct Size\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003e70 × 20 × 17 mm \/ 2.76 × 0.79 × 0.67 in\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #ccc; font-weight: 600; background:#f7f7f7;\"\u003eProduct Weight\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #ccc;\"\u003eApprox. 20 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Ordernow Store","offers":[{"title":"5PCS \/ CHINA","offer_id":48452083351793,"sku":"12000040112194228","price":19.77,"currency_code":"CAD","in_stock":true},{"title":"3PCS \/ CHINA","offer_id":48452083384561,"sku":"12000040112194226","price":14.01,"currency_code":"CAD","in_stock":true},{"title":"1PCS \/ CHINA","offer_id":48452083417329,"sku":"12000040112194224","price":7.9,"currency_code":"CAD","in_stock":true},{"title":"2PCS \/ CHINA","offer_id":48452083450097,"sku":"12000040112194225","price":10.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/7342\/4113\/files\/S49e02711eda54a8bba31f630905ff6fe4.webp?v=1785281822","url":"https:\/\/netcoresupply.com\/products\/5-1pcs-dc-3v-3-3v-isolated-drive-control-board-output-signal-indicator-high-level-driver-module-high-level-trigger-relay-module","provider":"NetCore Supply","version":"1.0","type":"link"}