0041.8860.1.1.37 - SCHURTER

BENEFITS

DATA LDT, LDS SWITCHES–MOMENTARY (LDT) AND LATCHING (LDS) ACTION

LDT LDS

Electrical data

Switching voltage [mV] min. 100 AC / DC min. 100 AC / DC

[V] max. 60 AC / 50 DC max. 60 AC / 50 DC

Switching current max. [mA] 200 200

Lifetime (at rated breaking capacity 1.2W) >105>105

Initial contact resistance, new [mΩ]<20 <20

Initial contact resistance, after lifetime [mΩ]<25 <25

Insulation resistance [Ω]>1010 >1010

Contact bounce time [ms] typ. 0.5 typ. 0.5

Mechanical data

Actuating force [N] 1.2 ± 0.6

Contact travel [mm] 1.3 ± 0.5

End contact travel [mm] 2.9 ± 0.5

End stop strength [N] >50 >50

Lifetime [operations] >105>105

Other data

Soldering method Hand soldering(soldering terminal) or soldering bath(print terminals)

Soldering heat resistance [ºC/s] *280/3(soldering)270/5(print terminals) *280/3(soldering)270/5(print terminals)

Ambient temperature illuminated [ºC/s] -25 – +60 -25 – +60

non-illuminated [ºC/s] -25 – +85 -25 – +85

Storage temperature illuminated [ºC/s] -25 – +60 -25 – +60

non-illuminated [ºC/s] -25 – +85 -25 – +85

Degree of protection IP 40 IP 40

Materials

Socket Thermoplast PES Thermoplast PES

Button Thermoplast PC Thermoplast PC

Contacts gold on request CuZn 37, mit 5µm Ag CuZn 37, mit 5µm Ag

Contact spring CuBe 37, mit 5µm Ag CuBe 37, mit 5µm Ag

Terminals CuZn 37, mit 4µm SN Pb 40 CuZn 37, mit 4µm SN Pb 40

LED see page 29

* Data refers to hand soldering only, not to be used for wave soldering

Absolute reliability and simple assembly

Compact design with very small mounting depth

Excellent price/performance ratio

Suitable for front and print-mounting

Good illumination

Many different application fields

DIMENSIONS LDT, LDS SWITCHES–MOMENTARY AND LATCHING ACTION

CONSTRUCTION

CIRCUIT DIAGRAM

LDT / LDS, small button LDT / LDS, small button with solder terminal

DIMENSIONS

OTHER DATA

Wiring diagram Front panel drilling Drilling diagram Solder terminal version

inside bevel

< 0.2 x 45°

N.O. N.O.

N.O.

LED-terminals

NO 1 pole NO 2 pole

FRONTPANEL

MEDIUM STROKE

FEATURES

Illumination non-illuminated illuminated

Models small button small button

PART NUMBER *

LDT NO 1 pole 0041.9141. 0 0041.9146.

LDT NO 2 pole 0041.9142. 0 0041.9147.

LDS NO 1 pole 0041.9151. 0 0041.9156.

LDS NO 2 pole 0041.9152. 0 0041.9157.

Colour of small button **

red

green

black

Shape of bezel/button

round

square

Colour of LED

red

green

Colour of bezel

black

Mounting accessories

Securing clip*** (necessary for front panel mounting) 0850.9242

xxxxxxx

LDT/LDS LDT/LDS

OVERVIEW LDT, LDS SWITCHES–MOMENTARY (LDT) AND LATCHING (LDS) ACTION

In addition to the versions

with the small button, further

versions with a large button

and switching functions are

available on request.

* X in the Part No. must be replaced by the desired version

** With the illuminated version, the small button is transparent

***Securing clip must be ordered separately

Round bezel/button : Square bezel/button :Securing clip:

LDT/LDS LDT/LDS

FEATURES

Illumination non-illuminated illuminated

Models small button with solder terminal small button with solder terminal

PART NUMBER *

LDT NO 1 pole 0041.8841. 0 0041.8846.

LDT NO 2 pole 0041.8842. 0 0041.8847.

LDS NO 1 pole 0041.8851. 0 0041.8856.

LDS NO 2 pole 0041.8852. 0 0041.8857.

Colour of small button **

red

green

black

Shape of bezel/button

round

square

Colour of LED

red

green

Colour of bezel

black

Mounting accessories

Securing clip*** 0850.9242

xxxxxxx

* X in the Part No. must be replaced by the desired version

** With the illuminated version, the small button is transparent

***Securing clip is included

In addition to the versions

with the small button, further

versions with a large button

and switching functions are

available on request.

Round bezel/button: square bezel/button:Securing clip:

FRONTPANEL

MEDIUM STROKE

OVERVIEW LDT, LDS SWITCHES–MOMENTARY (LDT) AND LATCHING (LDS) ACTION

P=016

Q=017

R=018

S=019

T=020

U=021

V=022

W=023

X=024

Y=025

Z=026

0=027

1=028

2=029

3=030

4=031

5=032

6=033

7=034

8=035

9=036

+=037

-=038

·=039

x=040

÷=041

=042

==043

#=044

↔=045

=046

→=047

←=048

↓=049

↑=050

%=051

√=052

CTRL =053

RETURN =054

SHIFT =055

LOCK =056

STOP =057

ENTER =058

BACK =059

LINE =060

↑

↓EIN =061

AUS =062

AUF =063

AB =064

ON =065

OFF =066

UP =067

DOWN =068

HIGH =069

LOW =070

ON/OFF =071

START =072

A=001

B=002

C=003

D=004

E=005

F=006

G=007

H=008

I=009

J=010

K=011

L=012

M=013

N=014

O=015

LETTERING

Depending on the application and font, there are various lettering possibilities. The following standards can be

used for key letterings:

ORDER INDEX LETTERING

LIGHTING TECHNOLOGY

TECHNICAL DATA LEDs

1. Maximum ratings

Part number 0925.9730 0925.9731 0925.9732

Light colour red green yellow

Forward current, DC IFmax. [mA] 40 40 40

Power dissipation Ptot max. [mW] 130 130 130

2. Characteristics (typ. at TU= 25 ºC)

Forward voltage at IF=10mA,UFtyp. [mA] 2.0 (< 2.6) 2.0 (< 2.6) 2.0 (< 2.6)

Luminous intensity at I F=10mA,IVtyp. [mcd] 11.2 - 28 18 - 45 11.2 - 28

Viewing angle ftyp. [Dergree] 50 50 50

Peak wave length l

peak typ. [nm] 635 565 586

Reverse voltage URtyp. [V] 5 5 5

MCS 18, LETTER HEIGHTS AND FONTS

2,83

Single characters, Univers 65

Legends max. 6 characters in line, Univers 65

Insert label and front foil anthracite, RAL 7016

Characters and symbols light grey, RAL 7035

SSM 27, LETTER HEIGHTS AND FONTS

3,0 7,0

Single characters, Univers 65

Legends max. 6 characters in line, Akzident-Grotesk condensed bold type

Front foil anthracite, RAL 7016

Characters and symbols light grey, RAL 7035

New speciﬁcation from 1.7.2011*

TECHNICAL DATA LEDs

1. Maximum Ratings LED old LED new* LED old LED new* LED old LED new*

Internal part number 0925.9730 0925.9731 0925.9732

Light colour red red green green yellow yellow

Forward current DC IF max. [mA] 40 30 40 30 40 30

Power dissipation Ptotmax. [mW] 130 100 130 100 130 100

2. Characteristics (typ. At Tu=25°C)

Forward Voltage at IF =10mA, UF typ. [V] 2.0 (<2.6) 2 at 20mA 2.0 (<2.6) 2.4 at 20mA 2.0 (<2.6) 2.4 at 20mA

Luminous intensity at IF =10mA, Iv typ. [mcd] 11.2 - 28 6.3 to… 18 - 45 6.3 to… 11.2 - 28 6.3 to…

Viewing angle typ. [degree] 50 60 50 60 50 60

Peak wave lenght typ. [nm] 635 635 565 565 586 585

Reverse voltage Ur typ. [V] 5 6 5 6 5 6