MDPAG03 [ITT]
MD and MDP Key Switches; MD和MDP按键开关
| 型号： | MDPAG03 |
| 厂家： | 
ITT Cannon |
| 描述： | MD and MDP Key Switches |
| 文件： | 总2页 (文件大小：43K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MD and MDP Key Switches
The disc contact type ED is a momentary
key switch with short travel and good
tactile feedback.
Construction
Function
Contact arrangement
Momentary
1 make contact = SPST
The ED is the main component of the
MD and MDP switches.
Distance between button centers, min.
Terminals
12.7 (0.500)
PC pins
MDP-Disc push-button key switch
Electrical data
Silver
Gold
Small momentary key switch equipped
with button, can be mounted on printed
circuit board.
Switching power max.
Switching voltage max.
Switching current max.
Dielectric strength (50 Hz/1 Min.)
Operating life with
6 W AC/DC
100 V AC/DC
100 mA AC/DC
300 V
3 W AC/DC
100 V AC/DC
50 mA AC/DC
300 V
MD-Disc push-button key switch
Small momentary key switch including
a protective rubber actuator.
A wide range of keyboards can be built
by using the MD.
MD and MDP key pads are available in
two contact materials:
MD
MDP
ꢀ 106
ꢀ 5 ꢁ 106
ꢀ 2 ꢁ 105
ꢂ 10 mΩ
ꢀ 2 ꢁ 105
ꢂ 15 mΩ
max. switching power
Contact resistance, initial
Insulation resistance
Contact bounce
ꢀ 1011
Ω
ꢀ 1011
Ω
ꢂ 100 µs
ꢂ 100 µs
Mechanical data
MD
MDP
ꢀ gold plated bronze
ꢀ silver plated bronze
Switching travel
Operating force
0.6 (0.0236)
2.6N ± 25%
0.3 (0.0118)
2.4N ± 25%
(260 grams ± 25%)
(240 grams ± 25%)
Further data
Contact material
Silver, Gold
Operating temperature
Storage temperature
Climatic category (days)
– 25°C to + 70°C1)
– 40°C to + 85°C
10 for silver version
56 for gold version
Soldering by static bath
255°C for 5 seconds
1) Special design for ambient temperature – 40°C to + 85°C (Type MD40) available (not washable in solvents)
Note: MD40 disc keyswitch conforms to climatic category 40/85/56.
Dimensions are shown in mm (inch)
Dimensions subject to change
www.ittcannon.com
B-13
MD and MDP Key Switches
Dimensional Drawings
MD
(0.4)
(0.138)
(0.2)
(0.2)
(0.0315)
(0.2)
(0.1)
(0.1)
(0.2)
(0.5) (0.4)
Holes for additional fixing
(0.5)
(0.197)
(0.238)
(0.157)
MDP
(0.315)
(0.4)
(0.0591)
(0.2)
(0.2)
(0.315)
(0.2)
(0.1)
(0.2)
(0.5)
(0.1)
Holes for additional fixing
(0.5)
(0.157) (0.138)
(0.11)
(0.0748)
Button MDP
(0.394)
(0.0591)
(0.472)
(0.0138)
(0.394)
(0.472)
(0.0591)
(0.0984)
(0.472)
Ordering code
1
2
3
Example: MD
AG
04
1
2
Designation: MD, MDP, MD40
Contact material: AG = silver,
AU = gold
3
MDP button color: 01 = black,
02 = white,
03 = red,
04 = light grey,
05 = dark grey,
07 = blue
Dimensions are shown in mm (inch)
Dimensions subject to change
www.ittcannon.com
B-14
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