
SMC - 1.27 mm Connectors DUAL ROW CONNECTOR Small Grid, Big Possibilities Limited space and high performance demands are characteristics of many modern electronic systems, all of which the connectors must accommodate. There is a corresponding demand for compact, secure, and reliable connectors, with high signal integrity and a relatively high current-carrying capacity. The comprehensive SMC range helps meet these requirements. The high-performance SMT connectors come in a number of different designs, heights, and contact densities in a 1.27 mm grid. The basic design criteria for the SMC series...
Open the catalog to page 2FEATURES Pitch No. of Pins Termination technology Applications Connectors Special versions 1.27 mm SMT, individual variants in Pressfit technology Data rate up to 3 Gbit/s Current rating up to 1.7 A per contact Board-to-board connections: - stacked (Mezzanine) - orthogonal - coplanar Wire-to-Board connections (ribbon cable): - pluggable - permanent Male connectors, vertical and right angle Female connectors, vertical and right angle Board-to-Board adapter Board-on IDC Cable assemby: - Female connectors IDC, right angle Lockable connectors Pressfit male connectors Reduced locating pegs / without...
Open the catalog to page 3Stacked boards (Mezzanine) Board-to-board adapter: enhanced board-to-board heights Extender card (coplanar)
Open the catalog to page 4Orthogonal boards Wire-to-board (pluggable) Wire-to-board (permanent): Board-on IDC
Open the catalog to page 5HIGH RELIABLE CONTACT DESIGN • ultra-reliable, dual-beam female contact • twisted contact tulip (90°) • rolled, homogeneous surface, guarantees secure contact mating • wide contact surfaces between the mated pairs • extremely low surface roughness minimizes abrasion • low contact resistance POLARIZATION / MATING FACE • mating face polarization prevents mismating and incorrect connection • insertion chamfers in the capture range ensure secure mating • distinctive guide elements for precise insertion
Open the catalog to page 6ROBUST SOLDER CLIPS • outstanding retention forces on the circuit board • soldering brackets absorb mechanical stress and are able to withstand high shock and vibration loads • documented shear and tear-off forces build trust in surface-mounted connectors (e.g., shear force: min. 1000 N; tear-off force: min. 100 N) INTERLOCKING SNAP-IN • lockable PCB and cable connectors • secured against heavy vibration and shock loads • snap-in: locking when mating; can only be released with tools • cable connector: integrated locking lever; can be manually released without tools • protection against accidental...
Open the catalog to page 7SNAP-IN B-TO-B ADAPTER • single-sided locking of board-to-board adapters on low-profile female connectors • enables the mating and release of two boards always on one specified side LOCATING PEGS • geometrically heterogeneous locating pegs for precise positioning on the circuit board • enables best possible compensation of PCB holes for both positive and negative tolerances
Open the catalog to page 8TAPE AND REEL PACKAGING transport safe packaging and fully automatic assembly FULLY AUTOMATIC ASSEMBLY AND REFLOW SOLDERING for efficient processing on modern assembly lines
Open the catalog to page 9BACKSIDE REFLOW SOLDERING capable of two sided reflow soldering PERMANENT WIRE-TO-BOARD CONNECTION (BOARD-ON IDC) automated and cost-efficient assembly of ribbon cables
Open the catalog to page 10PERMANENT WIRE-TO-BOARD CONNECTION fully automated assembly press-in without special tool feeding of the ribbon cable and cable guide processed connection
Open the catalog to page 11SMC - 1.27 mm Connectors MATING CONDITIONS ALLOWED INCLINATION FOR A SECURE SELF-CENTERING 1) depends on No. of Pins and misalignment tolerance ALLOWED MISALIGNMENT TOLERANCES FOR A SECURE SELF-CENTERING
Open the catalog to page 12STACKED BOARDS / MEZZANINE Board-to-Board Height Board-to-Board Height 40 mm 38 (reduced wipe length)
Open the catalog to page 13SMC - 1.27 mm Connectors CHARACTERISTICS —TECHNICAL DATA Description Climate category Temperature range ■55 / 125 °C (PCB Connectors) ■55 / 125 °C (TPE-S Cable) Current rating per contact 12-pin version at 20 °C ambient temperature: 1.7 A (up to 2.7 A with optimized layout) Air- and creepage distance contact - contact min. 0.4 mm The permissible operating voltages depend on the customer application and on the applicable or specified safety requirements. Insulation coordination according to IEC 60664-1 has to be regarded for the complete electrical device. Therefore, the maximum creepage and clearance...
Open the catalog to page 14SMC - 1.27 mm Connectors CHARACTERISTICS — Description Insertion and withdrawal force max. Gauge retention force Processing Conditions Hand soldering temperature max. Reflow soldering JEDEC Housing Material
Open the catalog to page 15SMC - 1.27 mm Connectors CABLE CHARACTERISTICS —TECHNICAL DATA FLAT RIBBON CABLES Description UL1581 (Horizontal Flame Test)
Open the catalog to page 16SMC - 1.27 mm Connectors HIGH FREQUENCY CHARACTERISTICS HIGH-SPEED DATA TRANSMISSION SMC connectors as solution for unshielded high-speed applications. The practically continuous impedance profile allows for secure data transmission rates of up to 3 Gbit/s (differential) if the system is suitably designed. • De-embedded measurement results for the micro backplane/daughter card application • 50-pin SMC, angled female connector, straight male connector (low profile) • Differential signal transmission INSERTION LOSS Ground Signal NEAR END CROSSTALK (NEXT) Ground Signal Victim B2_3 A4_5 B4_5 (shown...
Open the catalog to page 17• SMT termination • dual row connector • data rates up to 3 Gbit/s • location pegs for exact board placement • black insulation body for fast and reliable visual recognition • fully automated board assembly
Open the catalog to page 18SMC - 1.27 mm Connectors RIGHT ANGLE MALE —ORDERING INFORMATION No. of Pins
Open the catalog to page 19• SMT termination • dual row connector • data rates up to 3 Gbit/s • location pegs for exact board placement • black insulation body for fast and reliable visual recognition • fully automated board assembly
Open the catalog to page 20SMC - 1.27 mm Connectors RIGHT ANGLE FEMALE —ORDERING INFORMATION No. of Pins
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