Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) FUJITSU Component Connector FCN-074B / 078B series Card Edge Connector for DDR4 Memory Module Not for New Designs RoHS compliant Overview This is a 288-pin DIMM socket that conforms to JEDEC standards. Features Highly reliable contact Contact reliability with a module substrate is improved by a Fujtisu proprietary double-contact structure, which is resistant to dust and flux Various terminal shapes to match with substrate design and mounting form One surface mount type, one press fit type, and three through-hole types having different terminal lengths are included in this lineup Flame resistant UL94V-0 Flame resistant UL94V-0 LCP resin is used for the housing insulating material Typical applications DRAM-memory module connections for HPCs (servers, supercomputers), communication measurement apparatuses and office equipment DDR4 DIMM socket Item Specification Item Material, surface treatment Operating temperature range -55C to +85C Insulation material LCP resing (UL94V-0) Max. current rating 0.75A Conductor Max. voltage rating 29VAC Surface treatment Contact resistance 40m maximum (10mA, 20mVDC) Insulation resistance 1M minimum (500VDC) Ejector PA resin (UL94V-0) Dielectric withstanding voltage 500VAC for 1 minute Metal fitting Copper alloy (tin plating) Substrate insertion force 126.4N less than Copper alloy Contact Gold plating (PAGOS) Terminal Gold coat Part numbers and dimensions Part number FCN-074B288-G/0D FCN-074B288-G/1D Terminal shape Through hole FCN-074B288-G/2D Substrate thickness Number of pins 1.6 288 2.4 288 Package format Tray Min. package unit Min. shipment unit 40 pieces 200 pieces 40 pieces 200 pieces 3.2 288 40 pieces 200 pieces FCN-078B288-G/0 Surface mount - 288 40 pieces 200 pieces FCN-074B288-G/0P Press fit 1.6 min. 288 40 pieces 200 pieces Page 1 of 6 http://us.fujitsu.com/connectors Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) Dimensions * Through-hole type FCN-074B288-G/ D Memory module conforms to JEDEC MO-309) No. 145 No. 221 No.1 No. 77 Z Z No. 222 No. 288 No. 78 No. 144 (148 : ejector, in closed state) 129 maximum (*) Center line of (*) 4 21.3 max. Polarity key center line 0.85x(77-1)=64.60.1 74.55 1.40.03 0.85x(67-1)=56.10.1 63.4 (141) 3.650.05 10 min. Dimensions (mm) L FCN-074B288-G/0D 2.67 1.6 FCN-074B288-G/1D 3.18 2.4 FCN-074B288-G/2D 4.00 3.2 Unit: mm Dimensions in ( ) is reference value. Ejector: 162 max. in open state * 2.5 min. 6.4 max. 3- 0.40.1 Applicable substrate thickness (mm) Part number 5 min. 14.5 min. 21.3 max. 3.9 min. 162 max. L 0.85 Recommended printed circuIt board (Top view) 2.450.05 No. 145 64.6 No.1 56.1 A No. 146 No. 2 No. 221 No. 222 No. 77 No. 78 74.55 No. 288 2.450.05 No. 144 63.4 5.95 4.3 0.85 2.450.08 1.1 2.7 288 -0.660.08 Page 2 of 6 1.20.05 Detailed view of A Unit: mm Dimensions in ( ) is reference value. http://us.fujitsu.com/connectors Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) Dimensions * Surface mount type FCN-078B288-G/0 Memory module conforms to JEDEC MO-309) 25 Z No. 145 Z No.288 7 No.1 No.144 5.575 Polarity key center line 4 Center line of (*) 21.3 min. (145: ejector enclosed state) 128.6 minimum(*) 0.85x(67-1)=56.10.05 63.4 0.85x(77-1)=64.60.05 74.55 2.5 min. 6.5 min. 3 -0.40.1 (141) 1.40.03 3.650.05 5 min 14.5 min 21.3 min 3.9 min. 162 min. 10 min Unit: mm Dimensions in ( ) is reference value. (Ejector: 162 max. in open state) * Recommended printed circuIt board pattern (Top view) A 64.6 No.145 2.450.05 No. 221 56.1 No. 222 No. 288 2.450.05 No.1 No. 77 74.55 2.3 2.3 Detail A Page 3 of 6 No. 144 63.4 5.95 4.3 2.450.08 1.80.03 0.570.03 No. 78 1.20.05 Unit: mm Dimensions in ( ) is reference value. http://us.fujitsu.com/connectors Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) Dimensions * Press fit type FCN-074B288-G/0P Memory module conforms to JEDEC MO-309) 25 Z No. 288 7 Z No. 145 No. 1 No. 144 4.3 21.3 max. 5.575 Polarity key center line Center line of (*) 0.85 0.85x(77-1)=64.60.1 2.10.08 2.40.2 (145: ejector, in closed state) minimum 128.6 (*) 2.2 5.4 6.5 max. 0.85x(67-1)=56.10.1 74.55 141 162 max. 3.650.05 5 min. 14.5 min. 21.3 max. 3.9 max. 1.40.03 Applicable substrate thickness (mm): 1.6 min. 10 min. Z-Z Ejector in opened state Unit: mm Dimensions in ( ) is reference value. Ejector in opened state Maximum 162 * Recommended printed circuIt board pattern (Top view) A 64.6 56.1 No. 145 2.450.05 No. 221 No. 77 No. 1 No. 78 No. 288 No. 144 0.85 288 -0.90.05 PAD 288 -0.60.01 DRILL 288 -0.50.05 PTH Detail A Page 4 of 6 1.6 2.2 1.6 5.95 No. 222 Unit: mm Dimensions in ( ) is reference value. http://us.fujitsu.com/connectors Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) Recommended soldering conditions (surface mount type) Infrared reflow (IRS) conditions * The temperature profile indicates a temperature indicated on the printed circuit board surface. * Set the metal mask thickness of the solder paste to 120m. Peak temperature 260C max. t Na al ur 220C g lin oo rc ai 4C/sec. max. 4 or C m c. /se . ax 4C/sec. max. 160 to 170C Pre-heating 220C min. 40 sec. min. Reference: Recommended memory module terminal shape (applicable to both surface mount/through hole/press fit) Variation A 18.750.15 28.05 (11.05) 25.5 64.6 5.95 22.95 (11.05) 22.1 0.5 8 11 14.6 17.6 31.250.15 0.5 2.5 min 2.1 1.45 min 56.1 1.40.1 5.575 C 28.05 (11.05) 25.5 64.6 133.350.15 3.850.1 5.95 22.95 (11.05) 22.1 1.40.1 56.1 56.1 (3.35) Component area (rear face) 1.50.1 (For details see JEDEC MO-309) 5.95 64.6 56.1 (3.35) 4.3 Component area (rear face) 2.6 2.6 4.3 2.8 min 2.1 1.45 min 133.350.15 3.850.1 5.95 64.6 Component area (front face) 8 11 14.6 B 5.575 0.5 Component area (front face) Variation B 0.5 255 to 260C Actual heating 10 sec. max. 1.50.1 Dimensions in ( ) is reference value. PAGOS is a trademark of Fujitsu Component Limited Page 5 of 6 http://us.fujitsu.com/connectors Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM) Contact Japan FUJITSU COMPONENT LIMITED Shinagawa Seaside Park Tower 12-4, Higashi-shinagawa 4-chome, Tokyo 140 0002, Japan Tel: (81-3) 3450-1681 Fax: (81-3) 3474-2385 Email: fcl-contact@cs.jp.fujitsu.com Web: www.fujitsu.com/jp/group/fcl/en/ Europe FUJITSU COMPONENTS EUROPE B.V. Diamantlaan 25 2132 WV Hoofddorp Netherlands Tel: (31-23) 5560910 Fax: (31-23) 5560950 Email: info@fceu.fujitsu.com Web: emea.fujitsu.com/components/ China FUJITSU ELECTRONIC COMPONENTS (SHANGHAI) CO., LTD. Unit 4306, InterContinental Center 100 Yu Tong Road, Shanghai 200070, China Tel: (86 21) 3253 0998 /Fax: (86 21) 3253 0997 Email: fcal@sg.fujitsu.com www.fujitsu.com/sg/products/devices/ components/ North and South America FUJITSU COMPONENTS AMERICA, INC. 2290 North First Street, Suite 212 San Jose, CA 95131 U.S.A. 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Fujitsu Components America or its affiliates do not warrant that the content of datasheet is error free. In a continuing effort to improve our products Fujitsu Components America, Inc. or its affiliates reserve the right to change specifications/datasheets without prior notice. Copyright (c)2017 Fujitsu Components America, Inc. All rights reserved. Revised November 7, 2017. Page 6 of 6 http://us.fujitsu.com/connectors