2

D2A

Ultra Subminiature Detection Switch

D

2

A

Note1. Unless otherwise specified, a tolerance of

±0.4 mm applies to all dimensions.

Note2. The operating characteristics are for operation in the A direction (

).

Precautions

★Please refer to "Common Precautions" for correct use.

●Soldering

For soldering time, we recommend to solder within 3 seconds at

a soldering iron temperature of less than 350°C. When soldering

exceeds this temperature and time, or repeated soldering will

degrade the Switch characteristics.

Make sure that flux and liquid

surface of the solder do not flow

over the edge of the board when

soldering. Please complete

soldering at a temperature of

260°C within 5 seconds.

It is also recommended that you apply flux guard to the mounting

surface of the Switch.

●Mounting

Use M2 mounting screw with plane washers or spring washers to

mount the Switch. Tighten the screws to a torque of 4.9 to

●Application of Operation Force to the Actuator

Do not apply operation forces other than in the operating

direction of the lever as shown in the following figure.

It may damage the Switch or

cause malfunction.

●Mounting Plate

Use materials other than ABS or polycarbonate for the mounting

plate. Since grease is used for the Switch, cracks may occur if

grease from the Switch comes in contact with such materials.

●Using Micro Loads

It is recommended to use the Switch in the operation range

shown below. However, even when using micro load models

within the following operating range, if inrush current occurs

when the contact is opened or closed, it may increase the

contact wear and so decrease durability. Therefore, insert a

contact protection circuit where necessary. The minimum

applicable load is the N-level reference value. This value

indicates the malfunction reference level for the reliability level of

60% (

The equation,

estimated malfunction rate is less than

operations with

a reliability level of 60%.

M2 Tap

1.6 dia. holes

6

4.5

3.5

1.4

5.6

4.2

1.6

FP

OP

6.5

0

4

1

dia.

-0.12

8

4

2.54 2.54

0.8

0.9

0.3

A

8

2.54

3-1 dia. holes

2.54

4.2

3

1

2

3

1

2

NC

NO

FP

OP1

Non-shorting Model

OP2

TTP

NC

NO

FP

OP1

Shorting Model

Switching timing

OP2

TTP

D2A-1110, D2A-1120

D2A-2110, D2A-2120

Models Non- Shorting Model

Shorting Model

Operating

characteristics

Model D2A

-1110

D2A

-1120

D2A

-2110

D2A

-2120

Operating Force

OF

Max

Releasing Force

RF

Min.

0.98 N

{100 gf}

0.15 N

{15 gf}

0.49 N

{50 gf}

0.05 N

{5 gf}

0.98 N

{100 gf}

0.15 N

{15 gf}

0.49 N

{50 gf}

0.05 N

{5 gf}

Free Position

FP

Max.

Operating Position

OP1

OP2

Total Travel Position TTP

9.5 mm

8.1

±0.3 mm

7.4

±0.3 mm

6.5

±0.2 mm

9.5 mm

8.0

±0.3 mm

7.5

±0.3 mm

6.5

±0.2 mm

<PCB Mounting

Dimensions (Reference)>

Cautions

Correct Use

Switch mounti

surface

1

2,000,000

30

24

12

5

0

1

10

100

1,000

Current (mA)

0.1

1 mA

Operating range

0.16 mA

100 mA