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
Page 1 of 6 http://us.fujitsu.com/connectors
Not for New Designs
Item Material, surface treatment
Insulation material LCP resing (UL94V-0)
Conductor Copper alloy
Surface treatment Contact Gold plating (PAGOS)
Terminal Gold coat
Ejector PA resin (UL94V-0)
Metal tting Copper alloy (tin plating)
Overview
This is a 288-pin DIMM socket that conforms to JEDEC standards.
DDR4 DIMM socket
Item Specication
Operating temperature range -55°C to +85°C
Max. current rating 0.75A
Max. voltage rating 29VAC
Contact resistance 40mΩ maximum (10mA, 20mVDC)
Insulation resistance 1MΩ minimum (500VDC)
Dielectric withstanding voltage 500VAC for 1 minute
Substrate insertion force 126.4N less than
Part number Terminal
shape
Substrate
thickness
Number
of pins
Package
format
Min.
package unit
Min.
shipment unit
FCN-074B288-G/0D Through
hole
1.6 288
Tray
40 pieces 200 pieces
FCN-074B288-G/1D 2.4 288 40 pieces 200 pieces
FCN-074B288-G/2D 3.2 288 40 pieces 200 pieces
FCN-078B288-G/0 Surface mount -288 40 pieces 200 pieces
FCN-074B288-G/0P Press t 1.6 min. 288 40 pieces 200 pieces
■ Part numbers and dimensions
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
RoHS compliant
Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM)
Page 2 of 6 http://us.fujitsu.com/connectors
No. 145
No.1
No. 221
No. 77
Z Z
No. 222
No. 78
(148 : ejector, in closed state)
129 maximum (*)
Center line of (*) Polarity key center line
0.85 0.85×(77-1)=64.6±0.1 0.85×(67-1)=56.1±0.1
74.55
(141)
No. 288
No. 144
63.4
21.3 max.4
L
3- 0.4±0.1
2.5 min.
6.4 max.
162 max.
10 min.
5 min.
14.5 min.
21.3 max.
1.4±0.03
3.9 min.
3.65±0.05
Ejector: 162 max. in open state
■ Dimensions
• Through-hole type FCN-074B288-G/ D
Memory module conforms to JEDEC MO-309)
Unit: mm
Dimensions in ( )
is reference value.
Part number Dimensions (mm) Applicable substrate
thickness (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.
• Recommended printed circuIt board (Top view)
Detailed view of A
No. 145
No.1
Φ2.45±0.05
No. 146
No. 2
64.6 56.1
A
74.55 63.4
No. 221
No. 77
No. 222
No. 78
No. 288
No. 144
Φ2.45±0.05
288 -Φ0.66±0.08
5.95
4.3 0.85
2.7
1.1
1.2±0.05
2.45±0.08
Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM)
Page 3 of 6 http://us.fujitsu.com/connectors
■ Dimensions
• Surface mount type FCN-078B288-G/0
Memory module conforms to JEDEC MO-309)
Unit: mm
Dimensions in ( )
is reference value.
• Recommended printed circuIt board pattern (Top view)
Unit: mm
Dimensions in ( ) is reference value.
No. 145
No.1
25
7
Z Z No.288
No.144
2.5 min.
6.5 min.
3 -0.4±0.1
4 21.3 min.
0.85×(67-1)=56.1±0.05
0.85×(77-1)=64.6±0.05
63.4
5.575
Polarity key center line
(145: ejector enclosed state)
128.6 minimum(*)
Center line of (*)
74.55
(141)
1.4±0.03
3.65±0.05
3.9 min.
162 min.
10 min
5 min
14.5 min
21.3 min
(Ejector: 162 max. in open state)
No.145
No.1
Φ2.45±0.05
74.55 63.4
64.6 56.1
A
No. 222No. 221
No. 77 No. 78
No. 288
No. 144
Φ2.45±0.05
1.2±0.05
2.45±0.08
5.95
4.3
2.32.3
0.57±0.03
1.8±0.03
Detail A
Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM)
Page 4 of 6 http://us.fujitsu.com/connectors
■ Dimensions
• Press t type FCN-074B288-G/0P
Memory module conforms to JEDEC MO-309)
Unit: mm
Dimensions in ( )
is reference value.
• Recommended printed circuIt board pattern (Top view)
Unit: mm
Dimensions in ( ) is reference value.
(145: ejector, in closed state)
minimum 128.6 (*)
5.575
Polarity key center line
Center line of (*)
4.3
φ2.1±0.08 0.85×(77-1)=64.6±0.1 0.85×(67-1)=56.1±0.1
74.55
141
Ejector in opened state Maximum 162
Z-Z Ejector in opened state
0.85
21.3 max.
2.4±0.2
2.2
5.4
6.5 max.
162 max.
10 min.
5 min.
14.5 min.
21.3 max.
1.4±0.03
3.9 max.
3.65±0.05
No. 145 No. 288
No. 144
No. 1
25
7
Z Z
No. 145
No. 1
No. 221 No. 222 No. 288
No. 77 No. 78 No. 144
5.95 0.85
64.6 56.1
A
Detail A
φ2.45±0.05
1.6
1.6
2.2
288 -φ0.9±0.05 PAD 288 -φ0.6±0.01 DRILL
288 -φ0.5±0.05 PTH
Applicable substrate
thickness (mm): 1.6 min.
Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM)
Page 5 of 6 http://us.fujitsu.com/connectors
■ Recommended soldering conditions (surface mount type)
• The temperature prole indicates a temperature indicated on the
printed circuit board surface.
• Set the metal mask thickness of the solder paste to 120µm.
Infrared reow (IRS) conditions
■ Reference: Recommended memory module terminal shape (applicable to both surface mount/through hole/press t)
Dimensions in ( )
is reference value.
(For details see JEDEC MO-309)
PAGOS is a trademark of Fujitsu Component Limited
4°C/sec. max.
160 to 170°C
220°C
Peak temperature 260°C max.
Natural air cooling or 4°C/sec. max.
220°C min.
255 to 260°C
Pre-heating 40 sec. min.
Actual heating
10 sec. max.
4°C/sec. max.
Component area
(front face)
Component area
(rear face)
Component area
(rear face)
Component area
(front face)
31.25±0.15
0.5
0.5
5.575 B
C
2.5 min
2.1
1.45 min
2.8 min
2.1
1.45 min
28.05 25.5 22.95 22.1
(11.05) (11.05)
22.95 22.1
(11.05)
64.6
28.05 25.5
(11.05)
64.656.1 56.1
5.95
133.35±0.15
5.95
133.35±0.15
5.95 5.95
64.6 64.6
56.1 56.1
(3.35) (3.35)
4.3 4.3
3.85±0.1
3.85±0.1
2.6
2.6
1.5±0.1 1.5±0.1
1.4±0.1 1.4±0.1
0.5
8
11
14.6
0.5
8
11
14.6
17.6
18.75±0.15
5.575
Variation A Variation B
Data Sheet FUJITSU Component Connector FCN-074B / 078B series (DDR4 DIMM)
Page 6 of 6 http://us.fujitsu.com/connectors
Contact
Copyright
All trademarks or registered trademarks are the property of their respective owners. Fujitsu Components America or its afliates 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 afliates reserve the right to change specications/datasheets without prior
notice. Copyright ©2017 Fujitsu Components America, Inc. All rights reserved. Revised November 7, 2017.
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/
North and South America
FUJITSU COMPONENTS AMERICA, INC.
2290 North First Street, Suite 212
San Jose, CA 95131 U.S.A.
Tel: (1-408) 745-4900
Fax: (1-408) 745-4970
Email: components@us.fujitsu.com
Web: http://us.fujitsu.com/components/
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/
Asia Pacic
FUJITSU COMPONENTS ASIA, Ltd.
102E Pasir Panjang Road
#01-01 Citilink Warehouse Complex,
Singapore 118529
Tel: (65) 6375-8560 / Fax: (65) 6273-3021
Email: fcal@sg.fujitsu.com
www.fujitsu.com/sg/products/devices/
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/
Hong Kong
FUJITSU COMPONENTS HONG KONG Co., Ltd.
Room 06, 28/F, Greeneld Tower, Concordia
Plaza, No.1 Science Museum Road,
Tsim Sha Tsui East, Kowloon, Hong Kong
Tel: (852) 2881 8495 Fax: (852) 2894 9512
Email: fcal@sg.fujitsu.com
www.fujitsu.com/sg/products/devices/
components/
Korea
FUJITSU COMPONENTS KOREA, LTD.
Alpha Tower #403,
645 Sampyeong-dong,
Bundang-gu, Seongnam-si,
Gyeonggi-do, 13524 Korea
Tel: (82 31) 708-7108
Fax: (82 31) 709-7108
Email: fcal@sg.fujitsu.com
www.fujitsu.com/sg/products/
devices/components/