{"product_id":"p28-aviation-connector-square-flange-socket-male-female-2-24-pin-p28k2q-pls28","title":"P28 Aviation Connector – Square Flange Socket, Male \u0026 Female Circular Butt Joint, 2–24 Pin (P28K2Q \/ PLS28)","description":"\u003ch2\u003eP28 Aviation Connector – Square Flange Socket, Male \u0026amp; Female Circular Butt Joint, 2–24 Pin\u003c\/h2\u003e\n\n\u003cp\u003eP28 series aviation circular connectors (also designated P28K2Q for panel-mount and PLS28 for cable-mount plug) with square flange panel mount configuration. The P28 series uses a 28mm opening diameter — larger than GX20 (20mm) — supporting up to 24 pins in a single connector. The square flange mount provides four-point panel attachment for maximum mechanical stability, preferred over round nut-mount for high-vibration applications and panels requiring precise connector orientation. IP67 rated for outdoor and industrial use.\u003c\/p\u003e\n\n\u003ch3\u003eP28 Series Designation Reference\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP28K2Q:\u003c\/strong\u003e Panel-mount socket with square flange (K2Q = square flange mount). Fixed to panel via four screws through the flange corners.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePLS28:\u003c\/strong\u003e Cable-mount plug (PLS = plug). Connects to the P28K2Q panel socket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eButt joint \/ docking:\u003c\/strong\u003e Both halves on cable ends for mid-harness connections without panel mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpening Diameter:\u003c\/strong\u003e 28mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Configurations:\u003c\/strong\u003e 2, 3, 4, 5, 7, 10, 12, 14, 16, 19, 20, 24 pin (select above)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP Rating:\u003c\/strong\u003e IP67\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 5–10A per contact (pin count dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 250V AC\/DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Material:\u003c\/strong\u003e Zinc alloy, nickel-plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Material:\u003c\/strong\u003e Copper alloy, gold-plated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Square flange (4× screw holes) or butt joint (select above)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eP28 vs GX20 vs M23 — High Pin Count Connector Comparison\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGX20 (20mm, up to 15 pins):\u003c\/strong\u003e Round nut mount. Lower cost. Adequate for most industrial applications up to 15 circuits. Widest accessory availability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eP28 (28mm, up to 24 pins, this product):\u003c\/strong\u003e Square flange or round mount. Higher pin count than GX20. Square flange provides better panel stability. For applications requiring 16–24 circuits in a single connector.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eM23 (IEC standard, up to 19 pins):\u003c\/strong\u003e Standardized industrial circular connector. Better interchangeability between manufacturers. Higher cost. Preferred for OEM equipment requiring certified components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelection rule:\u003c\/strong\u003e Use GX20 for up to 15 circuits. Use P28 for 16–24 circuits where GX20 is insufficient. Use M23 for OEM applications requiring IEC-standardized connectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat panel cutout is required for P28 square flange mount?\u003c\/h4\u003e\n\u003cp\u003eThe P28 square flange mount requires a round panel hole for the connector body (approximately 28mm diameter) plus four screw holes at the flange corners. The exact dimensions depend on the specific variant — verify against the connector datasheet before drilling. The square flange provides four-point attachment, preventing the connector from rotating under torque when the cable connector is mated or unmated.\u003c\/p\u003e\n\n\u003ch4\u003eHow does the P28 compare to military circular connectors?\u003c\/h4\u003e\n\u003cp\u003eP28 connectors are commercial aviation-style connectors — not MIL-DTL-5015 or MIL-DTL-26482 military circular connectors. They share a similar appearance but use different thread standards, contact sizes, and sealing designs. P28 connectors are not interchangeable with MIL-spec circular connectors. For applications requiring MIL-spec connectors, specify MIL-DTL-5015 or MIL-DTL-26482 series connectors.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the maximum current for a P28 24-pin connector?\u003c\/h4\u003e\n\u003cp\u003eCurrent rating decreases as pin count increases due to thermal derating — more contacts in a smaller space generate more heat. For P28 24-pin configurations, verify the specific current rating per contact on the manufacturer’s datasheet. As a general guideline, high pin count configurations (19–24 pin) are typically rated 3–5A per contact. For high-current circuits, use fewer pins and larger contacts (DTP series or Anderson connectors).\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial machinery:\u003c\/strong\u003e High pin count sensor and actuator connections on complex equipment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAgricultural equipment:\u003c\/strong\u003e Multi-circuit implement harness connections requiring 16+ circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStage \u0026amp; entertainment:\u003c\/strong\u003e Multi-circuit outdoor equipment connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMilitary-adjacent:\u003c\/strong\u003e Field equipment connections requiring robust metal shell and high pin count\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine:\u003c\/strong\u003e Multi-circuit deck equipment connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003eP28 aviation connector (type, pin count, and mount configuration as selected). O-ring, cable entry seals, and coupling hardware included.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"P28-2P","offer_id":47850605281525,"sku":"14:200004889#P28-2P","price":18.52,"currency_code":"USD","in_stock":true},{"title":"P28-3P","offer_id":47850605215989,"sku":"14:200004890#P28-3P","price":18.52,"currency_code":"USD","in_stock":true},{"title":"P28-4P","offer_id":47850605248757,"sku":"14:200004891#P28-4P","price":18.52,"currency_code":"USD","in_stock":true},{"title":"P28-5P","offer_id":47850605150453,"sku":"14:200003699#P28-5P","price":18.52,"currency_code":"USD","in_stock":true},{"title":"P28-7P","offer_id":47850605183221,"sku":"14:200002130#P28-7P","price":19.53,"currency_code":"USD","in_stock":true},{"title":"P28-8P","offer_id":47850605084917,"sku":"14:365458#P28-8P","price":19.53,"currency_code":"USD","in_stock":true},{"title":"P28-10P","offer_id":47850605117685,"sku":"14:350850#P28-10P","price":19.53,"currency_code":"USD","in_stock":true},{"title":"P28-12P","offer_id":47850605019381,"sku":"14:350852#P28-12P","price":21.56,"currency_code":"USD","in_stock":true},{"title":"P28-14P","offer_id":47850605052149,"sku":"14:350853#P28-14P","price":21.56,"currency_code":"USD","in_stock":true},{"title":"P28-16P","offer_id":47850604953845,"sku":"14:10#P28-16P","price":21.56,"currency_code":"USD","in_stock":true},{"title":"P28-17P","offer_id":47850604986613,"sku":"14:29#P28-17P","price":22.61,"currency_code":"USD","in_stock":true},{"title":"P28-19P","offer_id":47850604888309,"sku":"14:173#P28-19P","price":22.61,"currency_code":"USD","in_stock":true},{"title":"P28-20P","offer_id":47850604921077,"sku":"14:175#P28-20P","price":22.61,"currency_code":"USD","in_stock":true},{"title":"P28-24P","offer_id":47850604822773,"sku":"14:193#P28-24P","price":24.64,"currency_code":"USD","in_stock":true},{"title":"P28-26P","offer_id":47850604855541,"sku":"14:366#P28-26P","price":24.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Sbb8eea1c98af437598b76acaa44efadeG.webp?v=1773899376","url":"https:\/\/www.csldmcml.com\/products\/p28-aviation-connector-square-flange-socket-male-female-2-24-pin-p28k2q-pls28","provider":"Cable Parts Online","version":"1.0","type":"link"}