210278

210278 Datasheet

Part	Datasheet
210278	210278 (pdf)

Related Parts	Information
MDGLFS	MDGLFS
MD S	MD S
MDP S	MDP S
MDP G	MDP G
MDPGLFS	MDPGLFS
MDPSLFS	MDPSLFS

PDF Datasheet Preview
MD and MDP Key Switches The disc contact type ED is a momentary key switch with short travel and good tactile feedback. The ED is the main component of the MD and MDP switches. MDP-Disc push-button key switch Small momentary key switch equipped with button, can be mounted on printed circuit board. 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 gold plated bronze silver plated bronze Construction Function Contact arrangement Distance between button centers, min. Terminals Momentary 1 make contact = SPST PC pins Electrical data Switching power max. Switching voltage max. Switching current max. Dielectric strength 50 Hz/1 Min. Operating life with max. switching power MD MDP Contact resistance, initial Insulation resistance Contact bounce Silver 6 W AC/DC 100 V AC/DC 100 mA AC/DC 300 V 106 2 105 10 1011 100 µs Gold 3 W AC/DC 100 V AC/DC 50 mA AC/DC 300 V 5 106 2 105 15 1011 100 µs Mechanical data Switching travel Operating force 2.6N ± 25% 260 grams ± 25% 2.4N ± 25% 240 grams ± 25% Further data Contact material Operating temperature Storage temperature Climatic category days Soldering by static bath Silver, Gold 25°C to + 70°C1 40°C to + 85°C 10 for silver version 56 for gold version 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 B-13 Dimensions are shown in mm inch Dimensions subject to change MD and MDP Key Switches Dimensional Drawings Holes for additional Button MDP Holes for additional Ordering code 1 Designation MD, MDP, MD40 2 Contact material AG = silver, AU = gold 3 MDP button color 01 = black, 02 = white, 03 = red, 04 = light grey, 05 = dark grey, 07 = blue B-14 Example MD AG 04 Dimensions are shown in mm inch Dimensions subject to change

PDF Datasheet Preview

MD and MDP Key Switches

The disc contact type ED is a momentary key switch with short travel and good tactile feedback.

The ED is the main component of the MD and MDP switches.

MDP-Disc push-button key switch Small momentary key switch equipped with button, can be mounted on printed circuit board.

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 gold plated bronze silver plated bronze

Construction

Function Contact arrangement Distance between button centers, min. Terminals

Momentary 1 make contact = SPST PC pins

Electrical data

Switching power max.

Switching voltage max.

Switching current max.

Dielectric strength 50 Hz/1 Min.

Operating life with max. switching power

MD MDP

Contact resistance, initial

Insulation resistance

Contact bounce

Silver
6 W AC/DC 100 V AC/DC 100 mA AC/DC 300 V 106 2 105 10 1011 100 µs

Gold
3 W AC/DC 100 V AC/DC 50 mA AC/DC 300 V 5 106 2 105 15 1011 100 µs

Mechanical data Switching travel Operating force
2.6N ± 25% 260 grams ± 25%
2.4N ± 25% 240 grams ± 25%

Further data Contact material Operating temperature Storage temperature Climatic category days

Soldering by static bath

Silver, Gold 25°C to + 70°C1 40°C to + 85°C
10 for silver version 56 for gold version 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

B-13

Dimensions are shown in mm inch Dimensions subject to change

MD and MDP Key Switches

Dimensional Drawings

Holes for additional

Button MDP

Holes for additional
Ordering code
1 Designation MD, MDP, MD40 2 Contact material AG = silver,

AU = gold 3 MDP button color 01 = black,
02 = white, 03 = red, 04 = light grey, 05 = dark grey, 07 = blue

B-14

Example MD AG 04

Dimensions are shown in mm inch Dimensions subject to change

More datasheets: AT-42036-BLKG | PA1119 | SBR40U60CTB-13 | 6002-210-008 | D000102 | 837 | DM74LS90N | MDGLFS | MD S | MDP S

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Datasheet ID: 210278 522559