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| Price | Negotiable |
| MOQ | 1 piece |
| Delivery Time | 7-25 working days, To be negotiated |
| Brand | Lunfeng |
| Place of Origin | Shenzhen, China |
| Certification | ISO9001:2015 |
| Model Number | BMS-026 |
| Packaging Details | First put into a polybag, then paked into a carton. According to clients' special requirements. |
| Payment Terms | T/T, Western Union |
| Supply Ability | 500000 Piece/Pieces per Month |
| Cable | flexible,track pitch | Item name | backlit membrane switch |
| Place of Origin | Shenzhen, China | Packaging Details | First put into a polybag, then paked into a carton. According to clients' special requirements. |
| Color | Pantone or RAL color, white black | Circuit | printing silver ink on PET material |
| Model Number | BMS-026 | Supply Ability | 500000 Piece/Pieces per Month |
| Feature | metal domes, leds | Certification | ISO9001:2015 |
| Used on | Various automtic machine control keypad | Brand Name | Lunfeng |
| Payment Terms | T/T, Western Union | Price | Negotiable |
| Delivery Time | 7-25 working days, To be negotiated | Product name | Back Light Membrane Switch with LGF Light Emitting Film |
| Key material | PET 0.188 PET | Minimum Order Quantity | 1 piece |
| Rear adhesive | 3M9090 300LSE |
Back Light Membrane Switch with LGF Light Emitting Film
LGF Membrane Switch: The LGF Technology
LGF stands for Light Guide Film that is responsible for directing light generated via right-angle LEDs or side-firing across areas where you need the backlit. It is basically a thin film backlighting technology that industries across the world have been using for backlit purposes.
The great thing about LGF technology is that it provides consistent backlighting regardless of the area shape. It also offers uniform lighting across multiple areas within the switch. It is possible to use multiple LG films within a certain application in order to offer discrete backlighting to different graphic features.
In order to achieve unique lighting effects, you can use different colored LEDs. On the overlay, you can associate different lighting colors with different printed graphics.
Working of Light Guide Film Technology
The thickness of the Light Guide Film ranges from 0.005 to 0.020”. The layer has microdots incorporated in it. These dots are pressed onto areas that are to brighten up once you supply power. This particular area is referred to as the imaged area.
In order to place the side view LEDs in the right location, manufacturers tend to perform cut-outs in the film. The side view LED generates light rays. These rays travel via the film and hit the microdots. When they make contact with microdots, they are refracted upwards towards the overlay surface. Thus, ensures uniformity in the backlighting effect. Something every LGF membrane switch user wants.
Membrane switch with LGF :
1.LGF
is
a
thinner
construction,
without
limited
to
devices
thickness.
2.LGF
has
a
limited
impact
on
the
tactile
feel
of
buttons.
3.LGF
can
provide
even
backlight
across
larger
and
small
areas.
4.Reliability
and
long
lifetime,
Low-Cost
Efficient
power
consumption
and
operating
on
lower
voltage
5.Colors:
White,
Blue,
Red,
Green
is
a
common
choice.
Our
Advantage:
We
Focus
in
membrane
switch
and
related
items.
Strong
R&D
capability
Stable
in
quality
Competitive
price
Short
Lead
time
for
samples
and
Mass
production
Whole
solution
design
available
Applications:
*
home
appliances
and
device
*
Security
Protection
systems
with
Cipher
Code
*
Various
industry
control
keypad
panel
*
consumer
electronics
and
3C
item
*
Thrapy
medical
system
and
device
Various
automtic
machine
control
keypad
| Items | Silver Printed Circuit | Copper Etched FPC Circuit |
| Material | PET (Polyester) | Copper |
| Conductor | Printed silver | Copper |
| Contact Fingers | Silver and Carbon | Gold plated |
| Contact Buttons Pads | Silver | Gold plated |
| Life & Reliability | normal | good |
| Stability | normal | good |
| Resistance | low | Very low |
| Cost | low | high |
| Lead Time | 2-3 days | 7-10 days |
| Pitch | 0.5mm (not suggested), 1.0mm, 1.27mm, 2.54mm |
0.5mm,
1.0mm,
1.27mm,
2.54mm |
|
1.Electrical Properties |
Membrane Switch |
||
|
Electrical Level: |
35V(DC), 100mA,1W |
||
|
Contact Resistance: |
10Ω~500 Ω |
||
|
Insulation Resistance: |
100MΩ/100V |
||
|
Dielectrics Voltage-resistance: |
250VRms(50~60Hz 1min) |
||
|
Chattering Time: |
≤ 5ms |
||
|
Life Time: |
Flat type ≥ 5,000,000; Tactile type ≥ 1,000,000 |
||
|
Tail Folding: |
R>1,180 |
||
|
|
|
||
|
2.Mechanical Properties |
|
||
|
Operating Force: |
Flat type 57~284g (2~10oz); Tactile type 170~397g(6~14oz) |
||
|
Switch Stroke: |
Flat type 0.1~0.5mm; Tactile type 0.6~1.5mm |
||
|
|
|
||
|
3.Environmental and Storage Conditions |
|
||
|
Operation Temperature: |
-40°C ~ +80°C |
||
|
Storage Temperature: |
-40°C ~ +80°C |
||
|
Humidity: |
40°C,
90%~95%,
240
hours |
FAQ:
Q1:
Are
you
a
factory
or
trade
company?
A
:
Lunfeng
is
membrane
switch/
graphic
overlay manufacturer/factory.
We
pecialize
in
memrbane
switch
for
26
years.
Q2
:
Is
my
switch
file
safe
if
I
send
it
to
you
for
manufacturing?
A
:
We
respect
customer's
design
authority
and
will
never
manufacture membrane
switch/
graphic
overlay
for
someone
else
without
your
permission.
NDA
is
acceptable.
Q3
:
Can
you
copy
membrane
switch/
graphic
overlay
samples
without
file?
A
:
Yes,
we
can
clone membrane
switch/
graphic
overlay
according
to
your
samples.
Q4
:
What
payment
do
you
accept
?
A
:
TT/
Western
Union.
Q5
:
What's
your
shipping
way
?
A
:
1.
We
have
our
own
forwarder
to
ship
goods
by
DHL,
UPS,
FEDEX,
TNT,
EMS.
2.
If
you
have
your
own
forwarder,
we
can
cooperate
with
them.
Q6
:
How
about
the
MOQ?
A
:
1
pcs,
but
normally
5
pcs
samples
for
memrbane
switch,
10
pcs
for
membrane
overlay.
Q7
:
What's
your
main
market?
A
:
Europe,
USA,
Brazil,
Russia,
Turkey,
Iran,
Austrialia,
Singapore...
