{"product_id":"str-s5703-off-line-switching-regulator-ic","title":"STR-S5703 Sanken Off-Line Quasi-Resonant Flyback Switching Regulator IC","description":"\u003cp\u003eThe \u003cstrong\u003eSTR-S5703\u003c\/strong\u003e is an original Sanken hybrid integrated circuit engineered specifically to meet the strict demands of off-line quasi-resonant flyback power converters utilizing indirect feedback. This device cleanly incorporates an advanced primary control and proportional drive circuit paired with a third-generation high-voltage bipolar switching transistor.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Sanken Electric Co., Ltd. (Originally distributed via Allegro MicroSystems)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Over-molded SIP-9 (9-pin Single In-line Power Package) with an integrated, isolated internal heat spreader.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTopology:\u003c\/strong\u003e Quasi-Resonant Flyback (Delivers exceptional efficiency, low-power standby mode, and minimized electromagnetic interference\/EMI).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Output Power:\u003c\/strong\u003e Rated for power supply outputs up to 140W (Typically operating on 110V\/120V primary source lines).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbsolute Max Ratings:\u003c\/strong\u003e Output voltage (V\u003csub\u003eCEX\u003c\/sub\u003e) of 500V and continuous output switching current (I\u003csub\u003eC\u003c\/sub\u003e) of 6.0A.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Safeguards:\u003c\/strong\u003e Fully equipped with cycle-by-cycle over-current limiting, latched over-voltage protection, internal under-voltage lockout (UVLO) with hysteresis, and thermal shutdown safety controls.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New \/ New Old Stock (NOS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAn essential, legacy component relied upon heavily by vintage repair benches for servicing retro TV sets, older CRT monitor power strips, and classic arcade chassis looking for an exact-match semiconductor replacement module.\u003c\/p\u003e","brand":"Sanken","offers":[{"title":"New","offer_id":48108729499802,"sku":"SC0002","price":21.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9477\/8778\/files\/13-STR-S5703_20Sanken_20Off-Line_20Quasi-Resonant_20Flyback_20Switching_20Regulator_20IC.jpg?v=1779420552","url":"https:\/\/prellelectronics.com\/products\/str-s5703-off-line-switching-regulator-ic","provider":"Prell Electronics","version":"1.0","type":"link"}