HRS BM20 Series Quick Start Manual

0.4 mm Pitch, 0.6 and 0.8 mm Height, Board-to-Board and Board-to-FPC Connectors
BM20 Series
■Features
1. High density mounting capability
A space saving design that keeps the connector
compact, but still maintains an adequate vacuum
area (no less than 0.7mm wide).
Depth DS: 2.3 mm DP: 1.78 mm
2. Reliable contact performance
Even though the mated height is low, the BM20 still
leads it class in maximum effective mating lengths
for each mating height.
<Effective Mating Length>
Height 0.8 mm: 0.2 mm
Height 0.6 mm: 0.15 mm
The addition of the two point contact system adds
more reliability to the contacts.
3. No restrictions to PCB pattern design
for the 0.8 mm height connector
This series utilizes a thin wall to insulate the
bottom surface of the connector and maintains an
effective mating length of 0.2 mm. This removes
any restriction for PCB pattern layout design
under the connector.
Note *1: There are some restrictions for the 0.6
mm height style.
4. Enhanced mating operations
The structure uses guide ribs to ease the mating
process and offers a self alignment range of up to
0.3 mm. A clear tactile click is used as an
indicator to the user that the mating process was
completed.
5. Drop and shock resistant structure
Dimples were designed into the contacts to
increase their retention force and to absorb the
shock delivered from a drop or other impact.
6. Debris resisting design
When mated, the connector's design covers the
contacts which help to keep dust and other debris
away from the contacts. The SMT leads are kept
very close to the connector housing which also
helps to prevent shorts caused by debris on the
exposed contacts
In cases where the application will demand a high level of reliability, such as automotive,
please contact a company representative for further information.
■Receptacle
2.98 ∞ 10.4
■Header
Board occupied area
2.46 ∞ 9.32
*1
Mating diagram (cross section)
H=0.8
2-point contact
structure
H=0.6
Existing products
BM20
10.4mm
10.48mm
A 22.3%
reduction
in size!
Existing products BM20
2.3 ∞ 10.48
= About 24.1mm
=About 31.0mm 2
BM20
Existing products
9.32mm
9.4mm
A 27.1%
reduction
in size!
Existing products BM20
1.78 ∞ 9.4
2 = About 16.7mm
= About 22.9mm
Vaccum pick-up
Molded Bottom
surface structure
Molded Bottom
surface structure
2013.11②
2
2
1