{"id":9391,"date":"2026-07-03T06:18:29","date_gmt":"2026-07-03T06:18:29","guid":{"rendered":"https:\/\/materialparts.com\/aeic-7272-s16\/"},"modified":"2026-07-03T07:38:02","modified_gmt":"2026-07-03T07:38:02","slug":"aeic-7272-s16","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/aeic-7272-s16\/","title":{"rendered":"AEIC-7272-S16"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The AEIC-7272-S16 is a solid-state relay (SSR) or isolated switching module from Littelfuse (formerly part of the IXYS\/Clare product line). The AEIC series provides galvanically isolated AC\/DC switching with zero-crossing turn-on for low EMI. The S16 suffix indicates a 16-pin DIP package with specific voltage\/current ratings. This device is designed for industrial control, instrumentation, and telecom switching applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nSolid State Relay (SSR) Module<\/td>\n<\/tr>\n
Load Voltage<\/td>\nUp to 250V RMS \/ 400V peak<\/td>\n<\/tr>\n
Load Current<\/td>\nUp to 150 mA<\/td>\n<\/tr>\n
Input Control Current<\/td>\n5 mA (typical LED drive)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n1.5V (LED forward voltage)<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n3750V RMS<\/td>\n<\/tr>\n
Turn-on Time<\/td>\nZero-crossing dependent (up to 8.3ms at 60Hz)<\/td>\n<\/tr>\n
Turn-off Time<\/td>\nup to 8.3ms (half cycle at 60Hz)<\/td>\n<\/tr>\n
On-Resistance<\/td>\n25 Ohm (typical)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-pin DIP (through-hole)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Optically isolated input-to-output (3750V RMS)<\/li>\n
  • Zero-crossing turn-on minimizes inrush current and EMI<\/li>\n
  • LED input for direct MCU\/digital logic drive<\/li>\n
  • 16-pin DIP package compatible with standard IC sockets<\/li>\n
  • High reliability with no moving contacts<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial process control and automation<\/li>\n
    • Instrumentation and measurement switching<\/li>\n
    • Telecom line switching and supervision<\/li>\n
    • AC\/DC load control from digital logic<\/li>\n
    • Medical equipment isolation switching<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AEIC-7272-S16 is a solid-state relay (SSR) or isolated switching module from Littelfuse (formerly part of the IXYS\/Clare product line). The AEIC series provides galvanically isolated AC\/DC switching with zero-crossing turn-on for low EMI. The S16 suffix indicates a 16-pin DIP package with specific voltage\/current ratings. This device is designed for industrial control, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[537],"chip_brand":[200],"class_list":["post-9391","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-aeic-7272-s16","chip_brand-littelfuse"],"acf":{"brief_explanation":"SSR module, zero-cross, 250V\/150mA, 3750V isolation, LED input, 16-pin DIP, industrial","date_code":"25+","package_case":"16-pin DIP (19.7 x 7.6 x 6.5 mm)","in_stock":1012,"datasheet":"https:\/\/www.littelfuse.com\/media?resourcetype=datasheet&itemid=a5dc0aa8-e4af-4e0b-b2f7-a6b2a59b9c6a","price":"$4.20 @ 1ku","product_introduction":"The AEIC-7272-S16 is a solid-state relay module providing galvanically isolated AC\/DC switching with zero-crossing turn-on. With 3750V RMS isolation between the LED input and the output switch, it enables safe digital logic control of AC\/DC loads. The zero-crossing feature minimizes inrush current and EMI by only turning on near the zero voltage crossing point. The 16-pin DIP package is compatible with standard IC sockets for easy prototyping and replacement in industrial control applications.","working_principle":"The AEIC-7272-S16 operates as an optically coupled solid-state relay. The input side consists of an infrared LED that is driven by the control signal (typically 5-15mA from a digital output). When the LED is energized, it emits infrared light that crosses the optical isolation barrier to a photodetector array on the output side. The photodetector drives a zero-crossing detector circuit that only enables the output triac\/SCR switch when the AC line voltage crosses zero. This zero-crossing turn-on eliminates the sudden voltage step that would otherwise cause high inrush currents in resistive loads or generate electromagnetic interference. The output switch (triac or back-to-back SCRs) can conduct in both directions for AC load control. The 3750V RMS isolation between input and output provides safety isolation for controlling mains-powered loads from low-voltage logic circuits. The absence of mechanical contacts means no contact bounce, no arcing, and unlimited switching cycle life.","pin_description":"\n
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      Input<\/td>LED Anode (+)<\/td>Input<\/td>Control signal positive (5-15mA drive)<\/td><\/tr>\n
      Input<\/td>LED Cathode (-)<\/td>Input<\/td>Control signal return<\/td><\/tr>\n
      Output<\/td>Load Terminal 1<\/td>Power<\/td>AC\/DC load connection (source)<\/td><\/tr>\n
      Output<\/td>Load Terminal 2<\/td>Power<\/td>AC\/DC load connection (drain)<\/td><\/tr>\n
      NC<\/td>No Connect<\/td>-<\/td>Unused pins for mechanical stability<\/td><\/tr>\n<\/table>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Industrial Control<\/td>PLC output module switching<\/td>3750V isolation, zero-cross, 16-DIP<\/td><\/tr>\n
      Heater Control<\/td>AC heater on\/off with zero-cross<\/td>Zero-cross turn-on, 250VAC, 150mA<\/td><\/tr>\n
      Instrumentation<\/td>Signal switching with isolation<\/td>3750V isolation, low on-resistance<\/td><\/tr>\n
      Telecom Switching<\/td>Line supervision and switching<\/td>Isolated, reliable, no contact bounce<\/td><\/tr>\n
      Medical Equipment<\/td>Isolated load control<\/td>High isolation, zero EMI, SSR reliability<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
      G3VM-61GR2<\/td>Omron<\/td>SSR, 60V\/0.5A, SOP-4, MOSFET output<\/td><\/tr>\n
      PVA3354NS<\/td>Infineon<\/td>PhotoMOS relay, 400V\/0.12A, SOP-4<\/td><\/tr>\n
      AQY282SX<\/td>Panasonic<\/td>PhotoMOS, 400V\/0.12A, DIP-4, low Ron<\/td><\/tr>\n
      TLP222A-2<\/td>Toshiba<\/td>Photo-relay, 400V\/0.15A, DIP-4<\/td><\/tr>\n
      CPC1393GR<\/td>Littelfuse<\/td>SSR, 600V\/0.15A, SOP-4, normally-open<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9391"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9391\/revisions"}],"predecessor-version":[{"id":9419,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9391\/revisions\/9419"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9391"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}