{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5018203231","brand":"Molex","brandSlug":"molex","productSlug":"5018203231","canonicalUrl":"https://icsourcedirect.com/molex/5018203231","factsUrl":"https://icsourcedirect.com/api/mcp/products/5018203231","rawCanonicalId":null},"summary":{"shortDescription":"Molex CMC 501820 series, 5018203231, 32-position 4-row shrouded header, male pin, tin-mating/tin-post contacts, 12A per circuit at 14VDC, panel mount, push-pull fastening, solder termination, PBT-GF housing, gray, bulk.","salesMarkdown":"## What This Connector Is The Molex 5018203231 is a 32-position, 4-row shrouded header from the CMC 501820 series, designed for board-to-cable/wire power interconnect applications. It carries a 12A per circuit rating at 14VDC, with all positions loaded with male pin contacts finished in tin on both the mating and post sides. The four-wall shrouding protects the pins during handling and guides alignment with the mating receptacle — useful in harness assembly where the header is panel-mounted and the cable side gets mated and unmated in service. ## Key Specs and What They Mean for Fit The 12A per circuit at 14VDC is the headline electrical rating — this is a power-grade header, not a signal interconnect. The tin-on-tin contact finish is typical for a moderate mating-cycle budget (50-100 cycles) in a controlled environment; if your application sees frequent connect/disconnect or runs in a corrosive atmosphere, the tin plating may wear or fret, and a gold-plated variant in the same series would be the better call. The 4-row, 32-position layout means the board footprint is dense — confirm your PCB real estate can accommodate the full 4-row pattern before committing the BOM. The panel-mount feature with push-pull fastening locks the header to the chassis, taking mechanical strain off the solder joints during cable mating. The PBT-GF housing (UL94 V-0 rated) handles the thermal load from the 12A circuits without issue inside an enclosed assembly. ## Mating and Termination This header mates with the corresponding CMC 501820 series receptacle housing — the one that accepts the crimp terminals for the cable harness. The shrouded 4-wall design means the plug is guided into place, reducing the chance of bent pins during blind mating in a tight enclosure. Termination is solder to the PCB; the header is through-hole solder, not press-fit, so it's a standard wave or hand-solder assembly step.","metaTitle":"Molex CMC 501820 5018203231, 32-Pos Header, 12A at 14VDC","metaDescription":"Molex 5018203231 CMC 32-position 4-row shrouded header, tin contacts rated 12A at 14VDC, panel mount. Active production, quoted to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Cable/Wire","title":"5018203231","Series":"CMC 501820","Package":"Bulk","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Contact Type":"Male Pin","Contact Shape":"Rectangular","Mounting Type":"Panel Mount","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"4","Voltage Rating":"14VDC","Insulation Color":"Gray","Base Product Number":"501820","Insulation Material":"Polybutylene Terephthalate (PBT), Glass Filled","Number of Positions":"32","Contact Finish - Post":"Tin","Current Rating (Amps)":"12A","Contact Finish - Mating":"Tin","Number of Positions Loaded":"All"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.9908","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/3683bcc1babe143010fe0732f52e2887.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/5018203231/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for 5018203231?","answer":"This header mates with the matching CMC 501820 series receptacle housing that accepts the crimp terminals for the cable harness. The 4-wall shrouding guides the plug into alignment."},{"question":"What is the pinout for Molex 5018203231?","answer":"The 5018203231 is a 32-position, 4-row header with all positions loaded. The pinout follows the standard CMC 501820 series layout; confirm the mating receptacle's circuit assignment against your harness schematic."},{"question":"What is the pitch of Molex 5018203231?","answer":"The pitch is not explicitly listed in the available specifications for this part. It is a 4-row, 32-position header from the CMC 501820 series — verify the exact pitch from the series datasheet or a physical sample before committing the PCB footprint."},{"question":"Is Molex 5018203231 RoHS compliant?","answer":"RoHS compliance is not explicitly stated in the available specifications for this part. The PBT-GF housing and tin plating are typically RoHS-compatible materials, but confirm with the manufacturer's compliance documentation for your specific jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/5018203231","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/molex/5018203231 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}