{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"03T-WPJV-1-SM","brand":"JST","brandSlug":"jst","productSlug":"03T-WPJV-1-SM","canonicalUrl":"https://icsourcedirect.com/jst/03T-WPJV-1-SM","factsUrl":"https://icsourcedirect.com/api/mcp/products/03T-WPJV-1-SM","rawCanonicalId":null},"summary":{"shortDescription":"JST WPJ series, 3-position plug, 5.00 mm pitch, 1 row, crimp termination, male pin contacts, latch holder fastening, JIS C 0920 Grade Level 7 waterproof, natural housing, free hanging in-line mount.","salesMarkdown":"## What the JIS C 0920 Grade Level 7 Rating Actually Means The JST WPJ 03T-WPJV-1-SM is a 3-position plug from the WPJ series, built for sealed wire-to-wire or wire-to-board connections where water ingress is the failure mode you're trying to avoid. The JIS C 0920 Grade Level 7 rating means this plug, when mated with the matching WPJ receptacle and properly terminated, withstands temporary immersion in water — think rain, washdown spray, or a puddle splash on a floor-mounted junction. That's the same test level as IP67, just under the Japanese industrial standard. The listing explicitly states contacts are not included. That is not a footnote — it is the single most common sourcing mistake on this part. The 03T-WPJV-1-SM ships as an empty plug housing. On a 3-position plug that means three terminals per assembly. ## Mating Half and Field Fit If you are replacing a failed connector in an existing harness, check that the receptacle is a WPJ; the latch geometry and seal groove are specific to the series. On-site, you can re-pin it with a basic crimp tool and a terminal insertion tool, no potting or overmoulding required. ## Temperature Range and Where It Runs That covers outdoor equipment in temperate climates, unheated enclosures, engine compartments near but not on the block, and washdown areas in food processing plants. The natural (uncoloured) housing is the standard WPJ material — no UV stabiliser added, so keep it out of direct sun if the harness runs exposed. Inside a cabinet or under a chassis it is fine.","metaTitle":"JST WPJ 03T-WPJV-1-SM Plug, 3 Pos, 5.00mm, JIS 7 Waterproof","metaDescription":"JST WPJ series 3-position plug, 5.00 mm pitch, JIS C 0920 Grade Level 7 waterproof rating. Crimp termination, latch holder, -25°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Wire-to-Board Connectors"],"specifications":{"Mfr":"JST Sales America Inc.","Note":"Contacts Not Included","Color":"Natural","Pitch":"0.197\\\" (5.00mm)","Series":"WPJ","Package":"Bulk","Features":"JIS C 0920 Grade Level 7","Row Spacing":"-","Contact Type":"Male Pin","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug","Fastening Type":"Latch Holder","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Base Product Number":"03T-WPJV","Contact Termination":"Crimp","Insulation Material":"-","Number of Positions":"3","Operating Temperature":"-25°C ~ 85°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d706c9a2116e494a67f0c3e68540bd08.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/03T-WPJV-1-SM/alternatives.json"},"ai":{"faq":[{"question":"Is 03T-WPJV-1-SM waterproof?","answer":"Yes, when mated with the matching WPJ receptacle and properly terminated, it meets JIS C 0920 Grade Level 7 — equivalent to IP67, meaning it withstands temporary immersion in water."},{"question":"Does 03T-WPJV-1-SM come with contacts?","answer":"No. The listing explicitly states contacts are not included. The plug ships as an empty housing; you must order the male crimp terminals separately."},{"question":"What is the mating connector for 03T-WPJV-1-SM?","answer":"It mates with the WPJ series receptacle housing — same 5.00 mm pitch, same JIS 7 sealing, with a matching latch feature for the holder."},{"question":"What is the pitch of 03T-WPJV-1-SM?","answer":"The pitch is 0.197\" (5.00 mm), wide enough to maintain creepage distance for the waterproof seal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/03T-WPJV-1-SM","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/jst/03T-WPJV-1-SM 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}}