{"product_id":"qa-tech-039-prp1643s","title":"QA Tech 039-PRP1643S, Chisel Tip, 40mil","description":"\u003cp\u003eThe QA Technology 039-PRP1643S is an ultra-fine-pitch spring probe from the 039-16 series: 39 mil (1.00 mm) centres with 0.160 in (4.06 mm) full stroke and a 0.107 in (2.72 mm) working stroke. It is the finest conventional pitch QA Technology offers — the probe for fine-pitch BGA escape fields, module-level test points and contact arrays where nothing coarser will fit. Note the shorter stroke: at 2.72 mm working travel it has roughly 60 % of the compliance of a 0.250 in-stroke probe, so the fixture must control Z-height more tightly.\u003c\/p\u003e\n\u003cp\u003eIn the ordering code, P is the tube material — nickel silver with an ID precious-metal cladding, giving a 3.1 A rating at 120 °C but under 165 mΩ average resistance, so treat these as low-current signal probes. 43 is the 60° three-faceted chisel at ø0.016 in (0.41 mm): edges rather than a single point, which cut flux and oxide while spreading wear. S is the standard spring at 3.6 oz (102 g \/ 1.00 N) at working stroke on a music-wire spring, rated for a million cycles. Probes press into an 039-SDC165J socket, which terminates with wire jacks rather than solder cups.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e43 chisel tip, 60° three-faceted, ø0.016 in (0.41 mm); heat-treated steel, gold over nickel\u003c\/li\u003e\n\u003cli\u003e39 mil (1.00 mm) centres\u003c\/li\u003e\n\u003cli\u003eWorking stroke 0.107 in (2.72 mm), full stroke 0.160 in (4.06 mm)\u003c\/li\u003e\n\u003cli\u003eStandard (S) spring: 3.6 oz (102 g \/ 1.00 N) at working stroke, 1.5 oz pre-load\u003c\/li\u003e\n\u003cli\u003eMusic-wire spring, 1,000,000 cycle life at working stroke\u003c\/li\u003e\n\u003cli\u003eP tube: nickel silver, ID precious-metal clad; average resistance \u0026lt; 165 mΩ\u003c\/li\u003e\n\u003cli\u003e3.1 A at 120 °C (4.2 A at 204 °C)\u003c\/li\u003e\n\u003cli\u003eWorking temperature −45 °C to 120 °C lubricated; to 204 °C unlubricated\u003c\/li\u003e\n\u003cli\u003eSold per unit; requires an 039-SDC165J socket with wire-jack termination\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FixturFab","offers":[{"title":"Default Title","offer_id":47144974123110,"sku":"201-000040","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/5387\/5558\/files\/a22db18d3cd70a231b46e29f4740d144.png?v=1788927394","url":"https:\/\/shop.fixturfab.com\/products\/qa-tech-039-prp1643s","provider":"FixturFab Shop","version":"1.0","type":"link"}