Wuerth Elektronik Pushbutton 12 Vdc 0.05 A 1 x Off/(On) Würth Elektronik momentary 1 pc(s) 444RD21025816 Data Sheet

DATE

FILE

REV

BY

EDV NO

Date

Checked

Drawn

Name

Scale

DESCRIPTION

Position

GENERAL TOLERANCE

Basic material

Projection

Drawing.- No.

WS-TLS 6,8*4,5mm Tact Switch with integrated LED, SMD version

444xx21025816

444x21025816.dft

 12-10-09

 Jelisarow

SwTact

 5:1

System :Solid Edge ST4

CAD

Würth Elektronik

eiCan

 .x = +/- 0,2
.xx = +/- 0,15

A4

SIZE

This electronic component is designed and developed with the intention for use in general
electronics equipments.
Before incorporating the components into any equipments in the field such as aerospace, aviation,
nuclear control, submarine, transportation, (automotive control, train control, ship control),
transportation signal, disaster prevention, medical, public information network etc. where higher
safety and reliability are especially required or if there is possibility of direct damage or injury to
human body, Wurth Elektronik must be asked for a written approval.
In addition, even electronic component in general electronic equipments, when used in electrical
circuits that require high safety, reliability functions or performance, the sufficient reliability
evaluation-check for the safety must be performed before by the user before usage.

1) The solder profile has to be complied with according to the technical reflow /or wave
soldering specification, otherwise no warranty will be sustained

2) All products are supposed to be used before the end of the period of 12 months
based on the product date-code, if not 100% solderability can't be warranted

3) Violation of the technical product specifications such as exceeding the absolute
maximum ratings will be result in the loss of warranty

4) It's also recommended to return the products into the original packaging

5) ESD prevention methods need to be applicated for manual handling and processing
by machinery

6) Resistors for protection are obligatory

unit

1

Peak wavelength typ.

nm

590

650

574

520

468

Dominant Wave length 
@IF=20mA

spectral Line Half-width
@IF=20mA
Capacitance 
VF=0V;f=1MHZ
Forward voltage 

typ. V

2

1,95

2,1

3,2

3,2

@IF=20mA

max.V

2,5

2,5

2,5

4

4

Reverse current 
@VR=5V

7

ESD 

V

2000

2000

2000

1000

1000

8

Viewing Angle 
@20mA  2θ 50% typ
Luminous intensity 

min. mcd

80

120

20

80

20

@IF=20mA

typ. mcd

180

220

50

150

50

10

Material 

AIGaInP

AIGaInP

AIGaInP

InGaN

InGaN

11

lens type 

water clear 

water clear 

water clear 

water clear 

water clear 

Properties 

 Blue & green 

Red 

yellow 

bright green

Unit 

Power Dissipation

120

75

75

75

mW

Peak Forward current 

100

185

175

150

mA

continuous Forward current 

30

30

30

30

mA

Reverse voltage

5

5

5

5

V

ESD Threshold / HBM 

1000

2000

2000

2000

V

Order code 

10

4

5

6

item 

2

3

typ.nm

28

35

typ.pF

uA

Emitting color 

20

20

10

21

100

10

20

15

10

35

100

10

º

9

145

145

145

145

145

470

typ.nm

590

630

567

525