{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1551891-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1551891-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1551891-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/1551891-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity ZQSFP+ cage, 1551891-1, press-fit termination, through-hole right-angle mount, EMI shielded, bulk package.","salesMarkdown":"## ZQSFP+ Cage — Press-Fit, EMI-Shielded, Right-Angle The press-fit termination eliminates the need for soldering — the compliant pins cold-form into the plated through-hole, a standard backplane assembly method that keeps the board-side process clean and rework-friendly. The cage is EMI shielded, which is essential for containing the radiated noise from 28 Gbps and higher serial links. Press-fit termination means the cage pins are pressed into the PCB using an arbor press or insertion tool — no wave solder, no reflow. The compliant pin design (typically an eye-of-the-needle or action-pin) deforms elastically to grip the plated barrel, creating a gas-tight joint. ## EMI Shielding and Signal Integrity The EMI Shielded feature means the cage body is a continuous metal enclosure (often with spring fingers at the panel interface) that attenuates radiated emissions from the high-speed differential pairs inside the ZQSFP+ module. For 28 Gbps NRZ or 56 Gbps PAM4 links, the cage's shielding effectiveness directly determines whether the system passes FCC Class A or Class B radiated emissions. The cage also provides a low-impedance ground path for the module's chassis ground. The bulk package (tray or tube) suits medium-to-high volume panel assembly where tape-and-reel is not required.","metaTitle":"TE 1551891-1 ZQSFP+ Cage, Press-Fit, EMI Shielded","metaDescription":"TE 1551891-1 ZQSFP+ cage, press-fit termination, right-angle through-hole, EMI shielded. Active production, sourced per RFQ. Bulk package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pluggable Terminal Blocks","Pluggable Assemblies"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"-","Package":"Bulk","Features":"EMI Shielded","Termination":"Press-Fit","Mounting Type":"Through Hole, Right Angle","Connector Type":"ZQSFP+","Contact Finish":"-","Product Status":"Active","Connector Style":"Cage","lifecycle_stage":"unknown","Base Product Number":"1551891","Number of Positions":"-","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.2100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee1a9ccc87ef3b246797c546b79a7094.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/1551891-1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1551891-1","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/te-connectivity-amp-connectors/1551891-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:04:01.345Z","lastPublished":"2026-07-22T18:04:01.345Z","indexable":true}}