{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"2155103031","brand":"Molex","brandSlug":"molex","productSlug":"2155103031","canonicalUrl":"https://icsourcedirect.com/molex/2155103031","factsUrl":"https://icsourcedirect.com/api/mcp/products/2155103031","rawCanonicalId":null},"summary":{"shortDescription":"Molex Coeur PowerWize header, 2155103031, 2-position, 12.50 mm pitch, right-angle through-hole, shrouded 4-wall, male pin, silver-plated contacts, screw termination, -40°C to 125°C, UL94 V-0.","salesMarkdown":"## What this 2-position power header does The 2155103031 is a 2-circuit, 12.50 mm pitch header from the Molex Coeur PowerWize series. It carries a single row of male pins in a shrouded 4-wall housing, terminated via screw clamp — no crimp tool, no applicator. The silver-plated contacts (125 µinch on both mating and post) are rated for high-current duty where the wire gauge sets the actual ampacity. Silver keeps contact resistance low under load, but it tarnishes in sulphide-rich air — keep this header inside a sealed enclosure or a clean cabinet. That combination fits industrial cabinet gear, automotive underhood modules, and battery-pack interconnect where the ambient sees both cold soak and engine heat. ## Screw termination — no press, no applicator The screw termination means the wire is clamped under a screw head, not crimped. This eliminates the need for a dedicated crimp press and applicator — a field technician or a low-volume build can terminate with a screwdriver. The trade-off is that pull-off force depends on screw torque and wire preparation, not a calibrated crimp profile. The contact post length is 0.053\" (1.35 mm) — short, meant for a PCB where the header sits flush against the board. ## Current rating — set by the wire, not the header That is not a placeholder — the screw terminal's ampacity is limited by the wire's temperature rise at the clamp point. For a given wire size, the derating follows the housing's 125°C ceiling. In practice, a 10 AWG stranded wire will carry more current than a 14 AWG in the same screw clamp, but the contact itself (silver-plated copper alloy) does not bottleneck until well above the wire's rating. The voltage rating is 400V — suitable for DC bus or single-phase AC power distribution inside equipment. The shrouded 4-wall housing provides basic finger-probe protection per the IEC/UL clearance requirements at that voltage.","metaTitle":"Molex 2155103031 Coeur PowerWize Header – 2 Pos, 12.50 mm","metaDescription":"Molex 2155103031 Coeur PowerWize header, 2 circuits, 12.50 mm pitch, right-angle through-hole, silver-plated contacts, screw termination.","metaKeywords":null},"attributes":{"series":"Coeur PowerWize","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"Molex","Style":"Board to Board","Series":"Coeur PowerWize","Package":"Tray","Features":"Board Guide","Shrouding":"Shrouded - 4 Wall","Termination":"Screw","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Circular","Mounting Type":"Through Hole, Right Angle","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"1","Pitch - Mating":"0.492\\\" (12.50mm)","Product Status":"Active","Voltage Rating":"400V","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Black","Insulation Height":"0.687\\\" (17.45mm)","Ingress Protection":"-","Insulation Material":"Liquid Crystal Polymer (LCP)","Number of Positions":"2","Row Spacing - Mating":"-","Contact Finish - Post":"Silver","Contact Length - Post":"0.053\\\" (1.35mm)","Current Rating (Amps)":"Varies by Wire Gauge","Operating Temperature":"-40°C ~ 125°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Silver","Contact Length - Mating":"0.330\\\" (8.38mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"125.0µin (3.18µm)","Contact Finish Thickness - Mating":"125.0µin (3.18µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.3400","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$17.34000","currency":"USD"},{"qty":40,"price":"$14.45100","currency":"USD"},{"qty":80,"price":"$11.56088","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/a143ee2204cbd1711bb333ef4e6bf1fd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current rating of Molex 2155103031?","answer":"The current rating varies by wire gauge. The silver-plated contact and screw termination can handle the ampacity of the wire you choose, up to the 125°C housing limit. For a specific wire size, the derating curve in the product drawing gives the safe continuous current."},{"question":"Is 2155103031 RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"What is the mating connector for 2155103031?","answer":"The 2155103031 is a male pin header. It mates with a 2-circuit Coeur PowerWize receptacle that accepts the 0.330\" (8.38 mm) pin length. The mating half is a screw-terminal or crimp-style receptacle in the same series — confirm the circuit count and pitch match before ordering."},{"question":"Does 2155103031 require a special tool?","answer":"No. The screw termination is field-terminable with a standard screwdriver — no crimp press, applicator, or special tooling is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/molex/2155103031","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/2155103031 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}