{"title":"Building Blocks","description":"","products":[{"product_id":"4-channel-large-current-relay-board","title":"4 Channel Large Current Relay Board","description":"\u003cp\u003e4-Channel Relay Board is a simple and convenient way to interface 4 relays for switching application in your project. The project has large Relay which can switch current up to 20Amps.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput supply 12 VDC @ 360 mA\u003c\/li\u003e\n\u003cli\u003eOutput four SPDT Relay\u003c\/li\u003e\n\u003cli\u003eRelay specification 20 A @ 230 VAC NC\/30A NO\u003c\/li\u003e\n\u003cli\u003eTrigger level 2 ~ 5 VDC\u003c\/li\u003e\n\u003cli\u003eBox Header connector for connection of trigger signal\u003c\/li\u003e\n\u003cli\u003eLED on each channel indicates relay status\u003c\/li\u003e\n\u003cli\u003ePower-On LED indicator\u003c\/li\u003e\n\u003cli\u003eScrew terminal connector for easy relay output and power in connection\u003c\/li\u003e\n\u003cli\u003eFour mounting holes of 3.2 mm each\u003c\/li\u003e\n\u003cli\u003ePCB dimensions 65 mm x 116 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319457009836,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/4CHANNELRELAY.jpg?v=1780054522"},{"product_id":"two-channel-high-side-switch-with-current-sensing","title":"Two Channel High-Side Switch with Current Sensing","description":"\u003cp\u003eThis automotive-grade two-channel high-side switch provides a robust power management solution by integrating overcurrent, thermal, and open-load protections alongside a dedicated current-sensing function for real-time load monitoring.\u003c\/p\u003e\n\u003cp\u003eThis is a two Channel high-side switch designed for automotive applications. It has a built-in overcurrent limit function, thermal shutdown protection function, open load detection function, low power output-OFF function etc. It also has a current sensing function of output load current.\u003c\/p\u003e\n\u003cp\u003eResistor R1, R2, R6, R7 limit resistance for the negative surge\u003cbr\u003eResistor R3, R8, capacitor C2, C4 for noise suppression filters\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower 6V to 28V DC\u003c\/li\u003e\n\u003cli\u003eON Resistance 45mOhmes\u003c\/li\u003e\n\u003cli\u003eBuilt-in current sensing function\u003c\/li\u003e\n\u003cli\u003eBuilt-in Dual TSD (Note 1)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Overcurrent Protection Function (OCP)\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermal shutdown protection function (TSD)\u003c\/li\u003e\n\u003cli\u003eBuilt-in open load detection function\u003c\/li\u003e\n\u003cli\u003eBuilt-in Low-Voltage Output-OFF Function (UVLO)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Low-Voltage Output-OFF Function (UVLO)\u003c\/li\u003e\n\u003cli\u003eInput Frequency 1Khz\u003c\/li\u003e\n\u003cli\u003eLow On-Resistance Single Nch MOSFET Switch (On Resistance 45mOhm)\u003c\/li\u003e\n\u003cli\u003eScrew Terminals for Loads and Power Input\u003c\/li\u003e\n\u003cli\u003eHeader Connector for Input, Current Sense\u003c\/li\u003e\n\u003cli\u003e4 x 4 mm Mounting Holes\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 54.61 x 40.32 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319462645932,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/twochnlhighside_1.jpg?v=1780054550"},{"product_id":"low-profile-2-channel-solid-state-relay-for-ac-loads","title":"Low Profile 2 Channel Solid State Relay for AC Loads","description":"\u003cp\u003eThis project offers an extremely compact solution for interfacing 2 high voltage resistive or inductive loads. At a low profile, this is the most compact \u0026amp; versatile optically isolated 2 channel solid state relay system.\u003cbr\u003eThis project offers an extremely compact solution for interfacing 2 high voltage resistive or inductive loads. At a low profile, this is the most compact \u0026amp; versatile optically isolated 2 channel solid state relay system. The circuit consists of 2x Triacs and isolated Triac drivers. The circuit is compatible with TTL input signals and controls 90V-220V AC loads. Sscrew terminal connectors are provided for an easy connection of the AC loads and AC supply input. Interfacing an Arduino\/Micro-controller or other circuit is easy using the 4 Pin header connector. A snubber circuit across Triacs is formed using R2, R6, C1, and C2 and is optional for inductive loads. For resistive loads do not populate the snubber circuit. Resistors R3, R4 are for current limiting for internal LED of the isolator. Use jumper J1 for common cathode, otherwise, 2x anode and cathode can be used. Each channel can drive a load up to 100W (220V AC). This circuit can on\/off load like Solenoid, AC motor, Fan, Lamp.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAC Supply 90V to 220V AC\u003c\/li\u003e\n\u003cli\u003eLoad 100W X 2\u003c\/li\u003e\n\u003cli\u003eTrigger Signal TTL Compatible (3-5V) (Anode and Cathode)\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 51.12 x 46.67 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":46319486828716,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/solidstterelay_1.jpg?v=1780054589"}],"url":"https:\/\/dotfry.com\/collections\/building-blocks.oembed","provider":"dotfry","version":"1.0","type":"link"}