®
Keymodule
Cherry GmbH
Cherrystrasse
D-91275 Auerbach/Opf.
Phone: (0 96 43) 18 - 0
Hotline: (0 96 43) 18 - 2 06
Fax: (0 96 43) 18 - 15 45
Internet: www.cherry.de
800407
The manufacturer accepts
no liability for errors or
changes in specification.
Printed in Germany.
45392530
E, Juni 2002
3, Mün
© 2002 Cherry GmbH
Contents
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Technical Data
General Information ________________________________________2
Technical Data ______________________________________________3
Keymodule ML ______________________________________________4
Keymodule MX ______________________________________________6
Keymodule
Cherry key modules are mechanical
input elements with a single-gap
make contact element. Low assembly
height, pleasant feel and excellent
contact reliability thanks to Gold-
Crosspoint contact technology allow
flexible designing of low-cost keypads
and keyboards. Depending on the
key cap, different lead spacings are
also possible.
Very short bounce times, very
pleasant feel and exceptionally high
reliability and durability pave the way
for a wide range of applications.
Model ML Model MX
Electrical Characteristics
Switching voltage 12 V AC/DC 12 V AC/DC max, 2 V DC min
Switching current 10 mA AC/DC max, 10 uA DC min. 10 mA AC/DC max, 10uA DC min.
Contact resistance ≤200 mW (typically. 25 m) ≤200 mW (typically 25 m)
Capacity at 1kHz ≤pF ≤pF
Dielectric strength 500 V/50Hz 500 V/50Hz
Isolation resistance (new) 100 MΩ100 MΩ
Durability at 5V, 1mA linear – 50x106linear
Durability at 5V, 1mA
pressure point 20x10650x106pressure point
Service life at 5V,
1mA latched pushbutton – 0,5x106latched pushbutton
MCBF 1x106
Mechanical Characteristics
Number of contacts Single-gap make contact element Single-gap make contact element
Action Pressure point Linear, pressure point, latching
Actuator travel 3.0 -0.5 mm 4.0 -0.4 mm Pulse / 4.2 ±0.3 mm latching
Pre-travel 1.5 ±0.5 mm 2 ±0.6 mm Pulse / 1.4 ±0.4 mm latching
Initial force 30 cN min 40 cN
Actuation force 45 ±20 cN 60 +20 cN linear and latching;
45 ±20 cN pressure point
Pressure point force 50 ±20 cN 55 ±20 cN
Bounce time during actuation with 0.4 m/s ≤5 ms ≤5 ms
Standard lead spacing 19.05 mm (16 mm min) 19.05 mm (16 mm min)
Fastening Fixing pins in the printed circuit board Snap fastening in frame or
Fixing pins in the printed circuit board
Lighting (optional) – LED in red, green or yellow
Decoupling diode – optional
Wire jumper – optional
Materials
Insulation materials Thermoplastics (min UL 94 HB) Thermoplastics UL listed
Spring Stainless steel Stainless steel
Contacts AuAg 10 High-quality gold alloy
Other Characteristics
Protection class IP 40 IP 40
Operating temperature -10 °C to +70 °C -10° C to +70° C
Storage temperature -40 °C to +70 °C -40° C to +70° C
Humidity (without condensation) 5% to 95% 5% to 95%
Soldering capability DIN IEC 68 DIN IEC 68
Soldering temperature/duration 260 °C / 5s 260 °C / 5s
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Description
The Cherry ML key module is a
mechanical switching element using
single-gap make contact element in
Gold-Crosspoint contact technology.
Its pleasant feel makes the module
particularly suitable for low-cost
construction of keyboards and
keypads with great diversity and very
low height. A multitude of different
cap shapes allows flexible designs.
Very short bounce time, reliable
stroke, pleasant feel and enormous
cost-savings pave the way for a wide
range of applications.
Keymodule ML
Force Travel Diagram
Keymodule Dimensions
P. C .B Layout View Direction ”A”
Keymodule
Flat key modules ML
Keycap Ordering-Numbers Dimension X Bar Assembly number
Format white-grey beige-grey
(mechanical parts and bar)
1x1 6753-0001 6753-0002 - - -
1x0,84 6743-0001 6743-0002 - - -
1x1,25 6753-0008 6753-0003 - - -
1x2
vertikal 6767-0004 6767-0005 25,6 614-5007 G99-1303 ZUB
1,25x2x1
vertikal 6767-0002 6767-0003 - - -
1,5x2x1,25
vertikal 6767-0007 6767-0008 25,6 614-5007 G99-1303 ZUB
1x1,5 6763-0011 6763-0010 17,45 614-5004 G99-1300 ZUB
1x1,53 6763-0004 6763-0003 17,45 614-5004 G99-1300 ZUB
1x1,75 6763-0008 6763-0001 21,65 614-5005 G99-1301 ZUB
1x2 6763-0020 6763-0021 25,6 614-5007 G99-1303 ZUB
1x2,25 6763-0028 -
1x5 6763-0002 6763-0009 116,15 614-5010 G99-1370 ZUB
1x7 6763-0029 - 116,15 614-5010 G99-1370 ZUB
P. C . B . Layout
Multiple Mechanism /Keycap for ML Accessories:
Empty housing Stock code 609-5292
Ordering code:
ML 1 A - 1 1 N W
Series Type ML
Contact material 1 = AuAg10 (max.10mA,12V)
Contact mounting A = 1 contact making element
Actuation 1 = Linear feel
Cap support 1 = Standard, straight for 8 mm cap
Mounting N = Without jumper
J=With Jumper
Fixing pins W = With Pins
Keycaps and mechanics
Description
The construction of the key and the
design of the relevant key caps fulfill
ergonomic requirements for computer
workplaces. Long durability thanks to
Gold-Crosspoint contacts and high
reliability for fast typing. With either
integrated color LED decoupling
diode or wire jumper.
MCBF = 1x109
®
Keymodule MX
Tastenmodul MX
1,5 +0,1 mm
stark
Keyswitch Assembly
Force/Travel Diagram
Layout of P.C.B.
MX-linear actuation MX with click tactile feel
ergonomic MX with alternate action
View of Keymodule
Locking Unit
Ordering-Number:
604-0324
*nur für Ausführung mit Fixierpin
*
Spacebar Mechanism
W/o frame
with frame
Cutout of frame for keycap sizes
1x2, 1x2,25, 1x2,75
Cutout of frame for keycap sizes
1x3, 1x7, 1x8, 1x9, 1x10
Size of keycap 1x2
1x2,25 1x3 1x8
1x2,75
Type of keycap 8 mm 8 mm 8 mm
„A“ (in mm) 23,8 38,1 133,35
Part No. with frame G99-0224 G99-0225 G99-0226
Part No. w/o frame G99-0742 G99-0743 G99-0744
Ordering code:
MX 1 A - 1 1 N N
Series Typ MX
Contact material 1 = AuAg10 (max.10mA,12V)
Contact mounting A = 1 contact making element
Actuation 1 = Linear feel
G=Soft tactile feel
3=Click tactile
Cap support 1 = Standard, straight for 8 mm cap
Mounting N = Without LED, without diode
R=Red LED, without diode
G=Green LED, without diode
Y=Yellow LED, without diode
D=With diode, without LED
J=With Jumper
without LED or Diode
Fixing pins N = Without pins (frame required)
W=With Pins (no frame required)
The manufacturer accepts no liability for errors or
non-availability, and reserves the right to change
specifications without prior notice.
Technical data relate to product specifications only.
Features may differ from those described.
Only drawings combined with product
specifications shall be deemed binding.
The special advantage of the MX key
is the individual choice of pleasant
feel.
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