NEW
0.4 mm Contact Pitch, Stacking Height 0.8 mm Board-to-Board/Board-to-FPC Connector
BM20 Series
■
Receptacle
Conventinal connector
BM20
2.3mm
2.98mm
2.46mm
10.4mm
10.48mm
Approx. 20.7％
Reduction
BM20
2.3×10.48
=Approx. 24.1mm
2
BM20
Conventinal
connector
2.98×10.4
=Approx. 30.4mm
2
■
Header
Conventinal connector
■Features
1.Contributes to High-Density Mounting of the Unit
Space-saving design with the minimum connector width, while
securing absorption area that does not affect mounting
capability (confirmed by mounting).
Width DS: 2.3 mm DP: 1.78mm
9.32mm
9.4mm
The board-occupied area.
Conventinal
connector
Approx. 20.7％
Reduction
BM20
2.High Contact Reliability
Connector has the effective mating length of 0.2 mm, the
longest length class for the mating height of 0.8 mm. In
addition, the two-point contact structure is adopted to secure
high contact reliability.
2.46×9.32
=Approx. 22.9mm
2
1.78×9.4
=Approx. 16.7mm
2
Absorption Area
3.No Pattern Prohibition Area
No restrictions on pattern designing, as thin molding
technology maintains the effective mating length of 0.2 mm
while achieving complete insulation between the bottom side of
the connector and the board.
0.7
0.7
4.Good Mating Operability
Mating self-alignment of 0.3 mm is secured by the guide ribs.
Giving a clicking feeling which is effective in preventing
incomplete mating, the connector contributes to the enhanced
mating operability.
5.Solid Structure with Shock-Absorbing Contacts
Lock structure at the plug terminal absorbs stress when
exposed to impact.
Mating Cross-Section Diagram
Two-Point
Contact Structure
6.Splatter-Proof, Safe Structure
The contact areas of both connectors are surrounded by walls,
preventing the adherence of splatter such as flux to the contact
area.
Bottom Side
Mold Structure
■Application
Devices that need to be slim and compact such as cell phones
and tablet PCs.
Bottom Side
Mold Structure
Bottom face mold structure ensures the insulation
between the connector’s bottom side and the board.
2012.4
1.78
mm
1
BM20 Series●0.4 mm Contact Pitch, Stacking Height 0.8 mm Board-to-Board/Board-to-FPC Connector
■Specifications
Current rating
Ratings
Voltage rating
Item
1.Insulation resistance
2.Withstanding voltage
3.Contact resistance
4.Vibration
5.Humidity
6.Temperature cycle
7.Durability
8.Resistance to
soldering heat
50 Mø min
No flashover or insulation breakdown
100 mø max.
No electrical discontinuity of 1 µs or longer
No damage or parts dislocation
Contact resistance: 100 mø max.,
Insulation resistance: 25 Mø min.
Contact resistance: 100 mø max.,
Insulation resistance: 50 Mø min.
No damage or parts dislocation
Contact resistance: 100 mø max.
No deformation of components affecting performance
30 V AC, DC
0.3 A
Operating
-35°C to +85°C (Note 1)
temperature range
Operating
humidity range
RH 20% to 80%
Storage
-10°C to +60°C (Note 2)
temperature range
Storage
humidity range
RH 40% to 70% (Note 2)
Specification
100 V DC
100 V AC / 1minute
Conditions
20 mV AC, 1 kHz, 1 mA
Frequency: 10 to 55 Hz, 5 min, single amplitude of 0.75
mm, 10 cycles, for each directions.
96 hours at 40 ±2°C and humidity of 90 to 95%
No damage or parts dislocation
-55°C
➝
5 to 35°C
➝
85°C
➝
5 to 35°C
Time: 30 min.
➝
10 min.
➝
30 min.
➝
10 min.
5 cycles
10 cycles
Reflow: At the recommended temperature profile
Manual soldering: 350°C for 3 seconds
Note 1: Includes temperature rise caused by current flow.
Note 2: The term "storage" here refers to products stored for a long period prior to board mounting and use.
The operating temperature and humidity range covers the non-conducting condition of connectors after board mounting and the
temporary storage conditions of transportation, etc.
Note 3: Information contained in this catalog represents general requirements for this Series. Contact us for the drawings and specifications
for a specific part number shown.
■Material
Product
Receptacle
Header
Part
Insulator
Contacts
Material
LCP
Phosphor bronze
Finish
Color:Black
Gold plated
Remarks
UL94V-0
---------
■Ordering
information
●Receptacles
/ Headers
BM 20 B (0.8) −
*
DS − 0.4 V (51)
❶
❷
❸
❹
❺
❻
❼
½
❾
❶
Series name : BM
❷
Series No.: 20
❸
Configuration
Receptacle
B:With mettal fittings
Header
B:With mettal fittings
❹
Stacking Height: 0.8mm
❺
Number of contacts:20, 24, 30, 40, 44,
50, 60
❻
Connector style
DS:Double-row receptacle
DP:Double-row header
❼
Contact pitch : 0.4mm
½
Termination type V…SMT vertical mount
❾
Packaging
(51): Embossed tape packaging (8,000 pieces per reel)
2
BM20 Series●0.4 mm Contact Pitch, Stacking Height 0.8 mm Board-to-Board/Board-to-FPC Connector
■Receptacles
A
B
P=0.4
2.3
1
0.12
0.8
0.68
C
■Recommended
PCB mounting pattern
C±0.02
P=0.4±0.02
1.1
-0.05
B±0.02
0
2.62
+0.05
0
0
1.76
-0.05
0.23±0.02
0.4±0.02
■Recommended
metal mask dimensions
C±0.02
2.62±0.01
B±0.02
P=0.4±0.01
1.1±0.01
0.4±0.01
2±0.01
0.23±0.01
All dimensions: mm
Part Number
BM20B(0.8)-20DS-0.4V(51)
BM20B(0.8)-24DS-0.4V(51)
BM20B(0.8)-30DS-0.4V(51)
BM20B(0.8)-40DS-0.4V(51)
BM20B(0.8)-44DS-0.4V(51)
BM20B(0.8)-50DS-0.4V(51)
BM20B(0.8)-60DS-0.4V(51)
Note 1 : Order by number of reels.
Note 2 : This connector is NOT polarized.
CL No.
CL0684-9009-7-51
CL0684-9010-6-51
CL0684-9011-9-51
CL0684-9012-1-51
CL0684-9017-5-51
CL0684-9013-4-51
CL0684-9014-7-51
Number of Contacts
20
24
30
40
44
50
60
A
6.48
7.28
8.48
10.48
11.28
12.48
14.48
B
3.6
4.4
5.6
7.6
8.4
9.6
11.6
C
6.02
6.82
8.02
10.02
10.82
12.02
14.02
3
BM20 Series●0.4 mm Contact Pitch, Stacking Height 0.8 mm Board-to-Board/Board-to-FPC Connector
■Headers
0.4
P=0.4
D
E
0.4
1.78
0.15
■Recommended
PCB mounting pattern
0.66
0.4±0.02
E±0.02
0.4±0.02
2.08
+0.05
0
0
0.88
-0.05
0.4±0.02
0.23±0.02
■Recommended
metal mask dimensions
0.4±0.01
E±0.02
0.4±0.01
2.08±0.01
1.12±0.01
0.4±0.01
0.23±0.01
All dimensions: mm
Part Number
BM20B(0.8)-20DP-0.4V(51)
BM20B(0.8)-24DP-0.4V(51)
BM20B(0.8)-30DP-0.4V(51)
BM20B(0.8)-40DP-0.4V(51)
BM20B(0.8)-44DP-0.4V(51)
BM20B(0.8)-50DP-0.4V(51)
BM20B(0.8)-60DP-0.4V(51)
Note 1 : Order by number of reels.
Note 2 : This connector is NOT polarized.
CL No.
CL0684-9002-8-51
CL0684-9003-0-51
CL0684-9004-3-51
CL0684-9005-6-51
CL0684-9016-2-51
CL0684-9006-9-51
CL0684-9007-1-51
Number of Contacts
20
24
30
40
44
50
60
D
5.4
6.2
7.4
9.4
10.2
11.4
13.4
E
3.6
4.4
5.6
7.6
8.4
9.6
11.6
4
BM20 Series●0.4 mm Contact Pitch, Stacking Height 0.8 mm Board-to-Board/Board-to-FPC Connector
●Receptacle
Ø1.5
+0.1
0
4±0.1
2±0.1
4±0.1
1.75±0.1
■Embossed
Carrier Tape Dimensions
F-F
F
J±0.1
H±0.3
F
G
G-G (5:1)
G
Unreeling direction
0.3±0.1
1±0.15
■Reel
dimensions
Part number label
1
Ø2
2±0.5
˚
Ø1
12
3±
0.2
Ø380±2
12
0
Part Number
BM20B(0.8)-20DS-0.4V(51)
BM20B(0.8)-24DS-0.4V(51)
BM20B(0.8)-30DS-0.4V(51)
BM20B(0.8)-40DS-0.4V(51)
BM20B(0.8)-44DS-0.4V(51)
BM20B(0.8)-50DP-0.4V(51)
BM20B(0.8)-60DS-0.4V(51)
H
16
16
24
24
24
24
24
J
7.5
7.5
11.5
11.5
11.5
11.5
11.5
Ø80±1
K±0.5
L±1
±0
.8
0˚
All dimensions: mm
K
17.5
17.5
25.5
25.5
25.5
25.5
25.5
L
21.5
21.5
29.5
29.5
29.5
29.5
29.5
5
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