{"product_id":"fotek-ssr-25dd-solid-state-relay-25a-dc-dc","title":"FOTEK SSR-25DD 25A Solid State Relay DC to DC Control","description":"\n\u003ch2\u003eFOTEK SSR-25DD Solid State Relay – 25A DC-DC Control Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFOTEK SSR-25DD Solid State Relay\u003c\/strong\u003e is a high-quality 25-amp DC-to-DC solid state relay designed for reliable switching and control in industrial automation, DIY electronics, and hobbyist projects. Unlike mechanical relays, this solid state relay has no moving parts, offering silent operation, fast switching speeds, and a longer operational lifespan — making it an ideal component for temperature controllers, CNC machines, 3D printers, and other automated systems.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e25A Load Current Capacity\u003c\/strong\u003e – Suitable for a wide range of DC-controlled switching applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC Input \/ DC Output (DD)\u003c\/strong\u003e – Ideal for low-voltage DC control circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Moving Parts\u003c\/strong\u003e – Silent, vibration-free switching with extended service life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Plastic Housing\u003c\/strong\u003e – Lightweight and easy to mount in panels, enclosures, or project builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Switching Response\u003c\/strong\u003e – Enables precise, responsive control in automated systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility\u003c\/strong\u003e – Works with FOTEK \/ Yangming standard SSR footprints and mounting brackets\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3D Printer Heating Bed \/ Extruder Control\u003c\/li\u003e\n  \u003cli\u003eCNC \u0026amp; Automation Systems\u003c\/li\u003e\n  \u003cli\u003ePID Temperature Controllers\u003c\/li\u003e\n  \u003cli\u003eIndustrial Control Panels\u003c\/li\u003e\n  \u003cli\u003eDIY Electronics \u0026amp; Maker Projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSSR-25DD\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBrand Compatibility\u003c\/td\u003e\n\u003ctd\u003eFOTEK \/ Yangming\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLoad Current\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDC Input to DC Output\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/everything-is-fine-trust-government-mens-graphic-t-shirt-cotton\"\u003e\"Everything Is Fine\" Funny Men's Graphic T-Shirt | Cotton Tee\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFurther Reading\u003c\/h3\u003e\n\u003cp\u003eFor guidance on electrical safety and best practices when working with relay control circuits, visit the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Resource\u003c\/a\u003e. For general electronics standards and measurement references, see NIST Electrical Measurement Resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does \"SSR-25DD\" mean for this solid state relay?\u003c\/h4\u003e\n\u003cp\u003eA: \"SSR\" stands for Solid State Relay, \"25\" refers to the 25-amp load current rating, and \"DD\" indicates a DC input to DC output configuration — meaning the control signal and the load circuit are both DC voltage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this SSR-25DD compatible with 3D printer control boards and PID temperature controllers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The FOTEK SSR-25DD solid state relay is widely used in 3D printer heated bed control, PID temperature controllers, and CNC automation systems due to its reliable switching characteristics and compact footprint.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does a solid state relay need a heat sink?\u003c\/h4\u003e\n\u003cp\u003eA: For sustained high-current operation (especially above 10A), it is recommended to mount the SSR-25DD on an appropriate aluminum heat sink to help dissipate heat and maintain stable long-term performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the advantage of a solid state relay over a mechanical relay?\u003c\/h4\u003e\n\u003cp\u003eA: Solid state relays like the SSR-25DD have no mechanical contacts, which means silent operation, faster switching speeds, resistance to vibration, and a significantly longer service life compared to traditional electromechanical relays.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does \\\"SSR-25DD\\\" mean for this solid state relay?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\\\"SSR\\\" stands for Solid State Relay, \\\"25\\\" refers to the 25-amp load current rating, and \\\"DD\\\" indicates a DC input to DC output configuration — meaning the control signal and the load circuit are both DC voltage.\"}}, {\"@type\": \"Question\", \"name\": \"Is this SSR-25DD compatible with 3D printer control boards and PID temperature controllers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The FOTEK SSR-25DD solid state relay is widely used in 3D printer heated bed control, PID temperature controllers, and CNC automation systems due to its reliable switching characteristics and compact footprint.\"}}, {\"@type\": \"Question\", \"name\": \"Does a solid state relay need a heat sink?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For sustained high-current operation (especially above 10A), it is recommended to mount the SSR-25DD on an appropriate aluminum heat sink to help dissipate heat and maintain stable long-term performance.\"}}, {\"@type\": \"Question\", \"name\": \"What is the advantage of a solid state relay over a mechanical relay?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Solid state relays like the SSR-25DD have no mechanical contacts, which means silent operation, faster switching speeds, resistance to vibration, and a significantly longer service life compared to traditional electromechanical relays.\"}}]}\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:\/\/vd0uzy-jp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Soldering \u0026 Electrical\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/collections\/soldering-electrical\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"FOTEK SSR-25DD 25A Solid State Relay DC to DC Control\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/products\/fotek-ssr-25dd-solid-state-relay-25a-dc-dc\"}]}\u003c\/script\u003e","brand":"Peaceful Pleasures Health and Wellness","offers":[{"title":"Default Title","offer_id":53658495385913,"sku":"1005010139631227-Default Title","price":109.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/3689\/5801\/files\/S8fb59fbf3fe74c108f3224887c46dcc6x.webp?v=1782831041","url":"https:\/\/peacefulpleasureswellness.com\/products\/fotek-ssr-25dd-solid-state-relay-25a-dc-dc","provider":"Peaceful Pleasures Health and Wellness","version":"1.0","type":"link"}