{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"20FLZ-RSM2-TB(LF)(SN)","brand":"JST","brandSlug":"jst","productSlug":"20FLZ-RSM2-TBLFSN","canonicalUrl":"https://icsourcedirect.com/jst/20FLZ-RSM2-TBLFSN","factsUrl":"https://icsourcedirect.com/api/mcp/products/20FLZ-RSM2-TB(LF)(SN)","rawCanonicalId":null},"summary":{"shortDescription":"JST Sales America Inc. FLZ series, 20FLZ-RSM2-TB(LF)(SN) — 20-position, 0.50mm pitch, bottom-contact ZIF FFC/FPC connector, right-angle SMT, tin-plated contacts, 0.5A, 50V, slide lock, UL94 V-0.","salesMarkdown":"## 20-Position Bottom-Contact ZIF at 0.50mm Pitch The 20FLZ-RSM2-TB(LF)(SN) is a 20-position, 0.50mm pitch FFC/FPC connector from JST's FLZ series, using a bottom-contact ZIF design with a slide lock actuator. The bottom-contact arrangement means the FPC's conductive pads face down against the PCB, so the cable inserts with the exposed traces downward; mixing up the orientation shorts the circuit. Rated 0.5A per contact at 50V, with an operating range of -25°C to 85°C. The 0.5A ceiling is typical for 0.50mm-pitch signal connectors — the narrow contact beam and fine pitch limit current per circuit well before the housing material (UL94 V-0 polyamide) reaches its thermal limit. The -25°C to 85°C span covers most consumer, commercial, and indoor industrial gear; outdoor or engine-compartment applications need a wider-range part. ## ZIF Actuator and Slide Lock — What They Do for the Fit The zero-insertion-force (ZIF) mechanism means the FPC slides in freely with the actuator open, then the slide lock clamps the contacts against the cable pads. No insertion force on the cable — the risk of tearing the thin 0.30mm FPC foil is eliminated. The slide lock also provides positive retention: once closed, it holds the cable against vibration and handling without a secondary latch. Without them, the ZIF actuation force can shift the part on the solder paste before reflow. ## Tin Plating — When It Works, When It Doesn't The contacts are tin-plated phosphor bronze. Below about 20 cycles the tin oxide film breaks in reliably; above 50 cycles the oxide builds up and contact resistance drifts. For high-cycle or corrosive environments (field-service, outdoor panels), a gold-plated sibling would be the better call — but this part keeps the BOM cost down for consumer or single-mate assembly. RoHS compliant. ## How It Sits Against the FLZ Siblings The FLZ series includes three 20-position variants at the same 0.50mm pitch and 2.00mm height: the 20FLZ-RSM2-TB (natural housing, bottom contact), the 20FLZ-SM2-TB (gray housing, top contact), and the 20FLZ-SM2-TB(LF)(SN) (gray housing, top contact, RoHS). The only difference between the bottom-contact and top-contact versions is which side of the FPC the contacts wipe — bottom-contact means the cable's conductive traces face the PCB; top-contact means they face away. Choose the variant that matches your FPC pad orientation and the board layout. The tin plating and 0.5A rating are identical across all three.","metaTitle":"20FLZ-RSM2-TB(LF)(SN) JST FLZ 20-Pin 0.50mm FFC/FPC","metaDescription":"JST FLZ series, 20-position, 0.50mm pitch, bottom-contact ZIF, right-angle SMT, tin-plated, 0.5A, 50V, RoHS. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"FLZ","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["FFC / FPC & Ribbon Connectors","FFC / FPC Cable Assemblies"],"specifications":{"Mfr":"JST Sales America Inc.","Pitch":"0.020\\\" (0.50mm)","Series":"FLZ","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Solder Retention, Zero Insertion Force (ZIF)","Termination":"Solder","Housing Color":"Natural","Mating Cycles":"-","Mounting Type":"Surface Mount, Right Angle","Actuator Color":"Black","Cable End Type":"Tapered","Contact Finish":"Tin","Flat Flex Type":"FFC, FPC","Product Status":"Active","Voltage Rating":"50V","Locking Feature":"Slide Lock","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Housing Material":"Polyamide (PA6T), Nylon 6T","Actuator Material":"Polyamide (PA6T), Nylon 6T","FFC, FCB Thickness":"0.30mm","Height Above Board":"0.079\\\" (2.00mm)","Base Product Number":"20FLZ-RS","Number of Positions":"20","Current Rating (Amps)":"0.5A","Operating Temperature":"-25°C~85°C","Connector/Contact Type":"Contacts, Bottom","Contact Finish Thickness":"-","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.38000","currency":"USD"},{"qty":10,"price":"$1.16400","currency":"USD"},{"qty":25,"price":"$1.11680","currency":"USD"},{"qty":50,"price":"$1.09320","currency":"USD"},{"qty":100,"price":"$1.04570","currency":"USD"},{"qty":250,"price":"$0.95060","currency":"USD"},{"qty":500,"price":"$0.85554","currency":"USD"},{"qty":1000,"price":"$0.76047","currency":"USD"},{"qty":2800,"price":"$0.68918","currency":"USD"},{"qty":5600,"price":"$0.66541","currency":"USD"},{"qty":8400,"price":"$0.63214","currency":"USD"},{"qty":14000,"price":"$0.61789","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/4608c62f414b97d722aeba9ddb3f3adb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 20FLZ-RSM2-TB(LF)(SN) RoHS compliant?","answer":"Yes, the 20FLZ-RSM2-TB(LF)(SN) is RoHS compliant per JST's listing."},{"question":"What is the difference between the 20FLZ-RSM2-TB and the 20FLZ-SM2-TB?","answer":"The 20FLZ-RSM2-TB has a natural housing and bottom-contact configuration; the 20FLZ-SM2-TB has a gray housing and top-contact configuration. Both are 20-position, 0.50mm pitch, tin-plated, 0.5A, and use the same slide-lock ZIF mechanism. The choice depends on whether your FPC's conductive pads face the PCB (bottom-contact) or away from it (top-contact)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/jst/20FLZ-RSM2-TBLFSN","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/20FLZ-RSM2-TBLFSN 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}}