Ｂ

Ａ

LTR

・LTM

■Soldering

Series

LTM

LTR

Manual soldering

380

℃ Max.

3sec. Max.

380

℃ Max.

3sec. Max.

Auto soldering

275

℃ Max.

6sec. Max.

265

℃ Max.

6sec. Max.

Preheating in the Åow line should be 80~120

℃ , 120 sec. max.

Do not dip solder the switches with color buttons or

mounting frames attached. Soldering heat may deform

the accessories or cause ingress of Åux.

■Flux Cleaning

⑴Solvents : Fluorine or Alcohl type

⑵LTM and LTR series are not washable. To wash the PC board,

clean the soldering surface of the PC board with a brush so

that the switch is not exposed to the cleaning solution.

⑶After soldering, wait until the temperature of the terminals

cool down to 90

℃ or below or until the parts are exposed

to room temperature for more than 5 min. before washing.

■Ambient Conditions

⑴In case of switches with silver-plated contacts, do not use in

an environment where there is corrosive gas such as sulfuric or

ammonia gas which may a ect the silver plating.

⑵LTM and LTR series are open-structure switches and should not

be used in a dusty environment.

■Precautions

LED circuit

Accessories

mounting

Example : E=5V,

Current to be applied to the

LED must be lower than the

forward current (IF) indicated

in the LED Specifications

of each switches. Resistance

value R should be calculated

using the formula on the right.

ling the Mounting Frame

all the mounting frame

hat the tab on the frame

n the same direction as

slot on the switch.

Installing the Button

Install the button so that the protrusions on the switch fit into

the square holes on the button.

The mounting frame cannot be installed with the switch

button installed.

R=

R=

=300Ω

5−2.0

0.01

Button

size A

size B

□10用

10mm sq.

□10

10mm sq.

□12.5

12.5mm sq.

φ10用

10mm dia.

φ10

10mm dia.

φ12.5

12.5mm dia.

□7.5用

7.5mm sq.

□7.5

7.5mm sq.

□10

10mm sq.

φ7.5用

7.5mm dia.

φ7.5

7.5mm dia.

φ10

10mm dia.