HMI-ComponentsEdition 07/2016
Characteristics
The compact 8 mm Series 19 is
especially suited for:
Raised design
PCB (with adaptor)
The low level switching element is laid
out for low current applications.
Functions
The Series 19 incorporates the following
functions:
Indicator
Pushbutton
Illuminated pushbutton
Market segments
The EAO Series 19 is especially suited
for applications in the segments:
Audio and video
Laboratory and measuring equipment
Series 19
Please refer to the EAO website to obtain detailed information regarding this series www.products.eao.com
Configure a product to your exact needs and request a quotation.
3
Content
Overview
Raised design
Indicator 4
Illuminated pushbutton 5
Accessories 7
Drawings 14
Technical data 15
Application guidelines 17
Index 18
19
4
Raised design
L9
8 max.
5.8
Ø9
NJO
YNN±NN
NJO
±


X
Y
Wiring diagram 1
Indicator, IP 40
Product can differ from the current configuration. Dimensions [mm]
Mounting cut-outs [mm]
Additional Information
• For LED element fitting information see «Applica-
tion guidelines»
Equipment consisting of (schematic overview)
Lens page 7
Single-LED page 10
Actuator
Fixing nut
Each Part Number listed below includes all the black
components shown in the 3D-drawing.
To obtain a complete unit, please select the red com-
ponents from the pages shown.
Behind panel depth Terminal Part No.
Compo-
nent layout
Wiring
diagram
Weight
Indicator actuator, Front dimension 9 x 9 mm
25 mm Solder 2.0 x 0.5mm 19-050.005 1 1 0.001 kg
33 mm Solder 2.0 x 0.5mm 19-051.005 1 1 0.002 kg
Indicator actuator, Front dimension Ø 9 mm
25 mm Solder 2.0 x 0.5mm 19-030.005 1 1 0.001 kg
33 mm Solder 2.0 x 0.5mm 19-031.005 1 1 0.002 kg
The component layouts you will find from page 14
19
5
Raised design
339
8 max.
5.8
1
Ø9
NJO
YNN±NN
NJO
±


Illuminated pushbutton, IP 40
Product can differ from the current configuration. Dimensions
Mounting cut-outs [mm]
Additional Information
• For LED element fitting information see «Applica-
tion guidelines»
Equipment consisting of (schematic overview)
Lens page 7
Single-LED page 10
Actuator
Fixing nut
Each Part Number listed below includes all the black
components shown in the 3D-drawing.
To obtain a complete unit, please select the red com-
ponents from the pages shown.
Switching system Contacts Contact material Switching action Terminal Part No.
Compo-
nent layout
Wiring
diagram
Weight
Illuminated pushbutton actuator, Front dimension 9 x 9 mm
Low-level element 1 NC Gold B Solder 2.0 x 0.5mm 19-452.035 2 1 0.002 kg
C Solder 2.0 x 0.5mm 19-482.035 2 2 0.002 kg
1 NO Gold B Solder 2.0 x 0.5mm 19-451.035 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-481.035 2 4 0.002 kg
Snap-action switching
element
1 NO Gold B Solder 2.0 x 0.5mm 19-159.035 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-289.035 2 4 0.002 kg
Silver B Solder 2.0 x 0.5mm 19-159.015 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-289.015 2 4 0.002 kg
Illuminated pushbutton actuator, Front dimension Ø 9 mm
Low-level element 1 NC Gold B Solder 2.0 x 0.5mm 19-432.035 2 1 0.002 kg
C Solder 2.0 x 0.5mm 19-472.035 2 2 0.002 kg
1 NO Gold B Solder 2.0 x 0.5mm 19-431.035 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-471.035 2 4 0.002 kg
Snap-action switching
element
1 NO Gold B Solder 2.0 x 0.5mm 19-139.035 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-279.035 2 4 0.002 kg
Silver B Solder 2.0 x 0.5mm 19-139.015 2 3 0.002 kg
C Solder 2.0 x 0.5mm 19-279.015 2 4 0.002 kg
Contacts: NC = Normally closed, NO = Normally open
Switching action: B = Momentary, C = Maintain
The component layouts you will find from page 14
19
6
Raised design
3
1
X
Y1
3
Y
X
3
1
X
Y
1Y
3X
Wiring diagram 1 Wiring diagram 2 Wiring diagram 3 Wiring diagram 4
19
7
Accessories
Front
Lens
Product attribute Dimension Lens Part No. Weight
Lens
illuminative, holder translucent 7.3 x 7.3 mm Plastic red transparent 19-951.2 0.001 kg
Plastic yellow transparent 19-951.4 0.001 kg
Plastic green transparent 19-951.5 0.001 kg
Plastic blue transparent 19-951.6 0.001 kg
Plastic white transparent 19-951.9 0.001 kg
illuminative, not recommended for film insert,
holder transparent
7.3 x 7.3 mm Plastic red transparent 19-952.2 0.001 kg
Plastic yellow transparent 19-952.4 0.001 kg
Plastic green transparent 19-952.5 0.001 kg
Plastic blue transparent 19-952.6 0.001 kg
Plastic colourless transparent 19-952.7 0.001 kg
non-illuminative 7.3 x 7.3 mm Plastic black opaque 19-951.0 0.001 kg
Plastic grey opaque 19-951.8 0.001 kg
Lens
illuminative, holder translucent Ø 7.3 mm Plastic red transparent 19-931.2 0.001 kg
Plastic yellow transparent 19-931.4 0.001 kg
Plastic green transparent 19-931.5 0.001 kg
Plastic blue transparent 19-931.6 0.001 kg
Plastic white transparent 19-931.9 0.001 kg
illuminative, not recommended for film insert,
holder transparent
Ø 7.3 mm Plastic red transparent 19-932.2 0.001 kg
Plastic yellow transparent 19-932.4 0.001 kg
Plastic green transparent 19-932.5 0.001 kg
Plastic blue transparent 19-932.6 0.001 kg
Plastic colourless transparent 19-932.7 0.001 kg
non-illuminative Ø 7.3 mm Plastic black opaque 19-931.0 0.001 kg
Plastic grey opaque 19-931.8 0.001 kg
19
8
Accessories
NJO
YNN±NN
NJO
±


Blind plug
Mounting cut-outs [mm]
Dimension Mounting cut-out Material Colour Part No. Weight
Blind plug
9 x 9 mm Ø 8 mm Plastic black 19-948.0 0.001 kg
Blind plug
Ø 9 mm Ø 8 mm Plastic black 19-949.0 0.001 kg
19
9
Accessories
8.
98
.9
8.9
8.9
11.7
11.7
3.35
5.6
3.2
Dimensions [mm]
Rear side
PCB plug-in base
pins Terminal Part No.
Compo-
nent layout
Weight
PCB plug-in base
axial PCB 19-940 4 0.001 kg
PCB plug-in base
right-angled PCB 19-941 3 0.001 kg
The component layouts you will find from page 14
Flat receptacle
Product attribute Part No. Weight
Flat receptacle
2.0 x 0.5 mm plug-in terminal 31-945 0.001 kg
Insulation sleeve
Product attribute Part No. Weight
Insulation sleeve
for flat receptacle 2.0 mm 31-928 0.001 kg
19
10
Accessories
8
0
-0.5
10 max.
2.54
4.05 max.
Ø 0.5
Illumination
Single-LED, T1 Bi-Pin
Additional Information
• For LED element fitting information see «Applica-
tion guidelines, LED polarity»
• Luminosity and wave length variations caused by
LED manufacturing processes may cause slight
differences regarding the illumination
Single-LED, T1 Bi-Pin
Additional Information
• For LED element fitting information see «Applica-
tion guidelines»
• Luminosity and wave length variations caused by
LED manufacturing processes may cause slight
differences regarding the illumination
Pins LED colour Lumi. intensity Dom. wavelength Forward voltage typ. Part No. Weight
Single-LED
Single-LED max. length: 8 mm red 450 mcd 635 nm 2.0 VDC @ 20 mA 10-2601.3172K 0.001 kg
yellow 450 mcd 587 nm 2.1 VDC @ 20 mA 10-2601.3174K 0.001 kg
green 1600 mcd 525 nm 3.2 VDC @ 20 mA 10-2603.3175K 0.001 kg
blue 500 mcd 465 nm 3.2 VDC @ 20 mA 10-2603.3176K 0.001 kg
white 4600 mcd x0.31/y0.32 nm 3.0 VDC @ 20 mA 10-2603.3178K 0.001 kg
Dimensions [mm]
Dimensions [mm]
Pins LED-colour Lumi. intensity Dom. wavelength Operating voltage Operation current Part No. Weight
Single-LED
Single Led T1 Bi-Pin,
max. length: 5 mm
red 45 mcd 625 nm 28 VAC/DC +10 % 5 mA/9mA ±15 % 10-2613.1072 0.001 kg
yellow 270 mcd 580 nm 28 VAC/DC +10 % 5 mA/9mA ±15 % 10-2613.1074 0.001 kg
green 320 mcd 525 nm 28 VAC/DC +10 % 5 mA/9mA ±15 % 10-2613.1075 0.001 kg
19
11
Accessories
Filament lamp, T1 Bi-Pin
pins Operating voltage Operation current Part No. Weight
Filament lamp
max. length: 5 mm 6 VAC/DC 70 mA 10-1606.1309 0.001 kg
12 VAC/DC 25 mA 10-1609.1199 0.001 kg
24 VAC/DC 20 mA 10-1612.1179 0.001 kg
19
12
Accessories
Mounting
Fixing nut
Dimension Part No. Weight
Fixing nut
Ø 9/M8 x 13 mm 19-991 0.001 kg
Dressing tool
Additional Information
• For aligning buttons
Part No. Weight
Dressing tool
19-906 0.011 kg
Lens remover
Part No. Weight
Lens remover
19-910 0.002 kg
19
13
Accessories
Mounting tool
Additional Information
• For fixing nut long Part No. 19-991
Part No. Weight
Mounting tool
19-905 0.011 kg
Lamp remover
Additional Information
pCaution: A switching process might be released
when replacing the lamp
Part No. Weight
Lamp remover
11-906 0.003 kg
19
14
Drawings
9 x 9 mm Ø9 mm
XY
XY
YY
X
13
9 x 9 mm Ø9 mm
X
31
4x Ø1.1
2.542.54
1.28
2.54
2.54
8.9
Through-connection re
Component layout 1 Component layout 2 Component layout 3
2x
Ø1.1
Pins fo
r
mounting
2.5410.16
2.54
8.9
2.54
11.7
2.3 4x Ø1.1
Pins for
contact / LE
D
Drilling plan (element side)
Through-connection recommended
Component layout 4
Drawings
19
15
Technical data
Actuator with snap-action switching element
Switching system
Single-break, snap-action switching system.
1 normally open contact
Material
Material of contact
Gold plated Silver, Silver plated
Switch housing
Polyetherimide (PEI), self-extinguishing
Actuator housing
Polyphenyleneoxide (PPO), self-extinguishing, colour black
Mechanical characteristics
Terminals
Universal terminal:
Max. wire diameter 2 x 0.8
mm
Max. wire cross-section of stranded cable 1 x 0.75
mm²
Plug-in terminal: 2.0 x 0.5
mm
For these terminals we can also supply a plug-in base which, when
soldered on to the board, enables the switch to be plugged in.
Tightening torque
for fixing nut max. 20
Ncm
Actuating force
1.6
N
Actuating travel
2.8
mm ±0.2 mm
Mechanical lifetime
2 million operations
Electrical characteristics
Switch rating
Silver plated:
Max. 50 VAC, 0.8 A / 72 VDC, 0.7 A
Min. 20 V, 10 mA
Gold plated:
Max. 50 VAC, 100 mA / 72 VDC, 70 mA
Min. 100 μV, 50 μA
Electric strength
2500 VAC, 50 Hz, 1 min. between all terminals and earth,
as per IEC 60512-2-11
Environmental conditions
Storage temperature
-40 °C … +85 °C
Service temperature
without illumination -25 °C … +65 °C
with incandescent lamp -25 °C … +45 °C
with LED -25 °C … +65 °C
for indicators and illuminated pushbuttons mounted as a block,
make sure the heat can escape freely
Protection degree
IP 40 front side, as per IEC 60529
Actuator with low level switching element
Switching system
This low-level switching system was designed for switching low
powers in electronic circuits. The switching system assures
reliable switching of loads.
Single-break momentary contact, as normally open or normally
closed with 4 independent points of contact.
Special features are the long life, extremely short rebound time
and stable contact resistance.
1 normally open or 1 normally closed contact.
Material
Material of contact
Gold plated
Actuator housing
Polyphenyleneoxide (PPO), self-extinguishing, colour black
Mechanical characteristics
Terminals
Universal terminal:
Max. wire diameter 2 x 0.8 mm
Max. wire cross-section of stranded cable 1 x 0.75 mm²
Plug-in terminal: 2.0 x 0.5 mm
For these terminals we can also supply a plug-in base which, when
soldered on to the board, enables the switch to be plugged in.
Tightening torque
for fixing nut max. 20 Ncm
Actuating force
1.8 N ±0.3 N
19
16
Technical data
Actuating travel
2.8 mm
 ±0.2 mm
Rebound time
Typ.
 < 100 μs
Mechanical lifetime
5
 million operations
Electrical characteristics
Contact resistance
≤
 50 mΩ starting value (initial) as per IEC 60512-2-2b
Switch rating
10 μA,
 100 μV to 100 mA at 42 VAC/VDC
Electric strength
2500 VAC,
 50 Hz, 1 min. between all terminals and earth,  
as
 per IEC 60512-2-11
Environmental conditions
Storage temperature
-40 °C … +85 °C
Service temperature
without illumination -25 °C … +65 °C
with incandescent lamp -25 °C … +45 °C
with LED -25 °C … +65 °C
for indicators and illuminated pushbuttons mounted as a block, 
make sure the heat can escape freely
Protection degree
IP 40 front side, as per IEC 60529
Shock resistance
(Single impacts, semi-sinusoidal)
15 g for 11 ms, as per IEC 60512-4-3, IEC 60068-2-27
EAO reserves the right to alter specifications without further
notice.
19
17
Application guidelines
Suppressor circuits
LED polarity
The free-wheeling diode should be chosen so that the reverse
breakdown voltage is greater than the voltage driving the induc-
tive load. The DC blocking voltage (VR) of the free-wheeling diode
can be found in the datasheet of a diode. The forward current
should be equal or greater than the maximum current flowing
through the load.
To get an efficient protection, the free-wheeling diode must
be connected as close as possible to the inductive load!
When switching inductive loads such as relays, DC motors, and
DC solenoids, it is always important to absorb surges (e.
g. with a
diode) to protect the contacts. When these inductive loads are
switched off, a counter emf can severely damage switch contacts
and greatly shorten lifetime.
Fig. 1 shows an inductive load with a free-wheeling diode con
-
nected in parallel. This free-wheeling diode provides a path for the
inductor current to flow when the current is interrupted by the
switch. Without this free-wheeling diode, the voltage across the
coil will be limited only by dielectric breakdown voltages of the
circuit or parasitic elements of the coil. This voltage can be kilo
-
volts in amplitude even when nominal circuit voltages are low
(e.
g. 12 VDC) see Fig. 2.
When fitting the LED elements the polarity has to correspond with
the respective terminal, (x+) goes to +.
Several hundred
to several
thousend volts
ON OFF
0
e = L di
dt
__
V
DC
Switch
Free-wheeling
diode
Inductive
load
Counter EMF
over load without free-wheeling diode
Fig. 2
Switching with inductive load
Fig. 1
+
_
Anode
Illuminated pushbutton Indicator
(+)
(X+)
1
(X
+)
Recommended LED series resistors for optimum illumination
Resistor size 0207.1 %
LED red LED yellow LED green LED white LED blue
6 VDC 390R 390R 1K5 390R 390R
12 VDC 1K 1K 4K7 1K 1K
24 VDC 2K2 2K2 10K 2K2 2K2
19
18
Index
10-1606.1309 .......... 11
10-1609.1199 .......... 11
10-1612.1179 .......... 11
10-2601.3172K ........ 10
10-2601.3174K ........ 10
10-2603.3175K ........ 10
10-2603.3176K ........ 10
10-2603.3178K ........ 10
10-2613.1072 .......... 10
10-2613.1074 .......... 10
10-2613.1075 .......... 10
11-906 ..................... 13
19-030.005 ................ 4
19-031.005 ................ 4
19-050.005 ................ 4
19-051.005 ................ 4
19-139.015 ................ 5
19-139.035 ................ 5
19-159.015 ................ 5
19-159.035 ................ 5
19-279.015 ................ 5
19-279.035 ................ 5
19-289.015 ................ 5
19-289.035 ................ 5
19-431.035 ................ 5
19-432.035 ................ 5
19-451.035 ................ 5
19-452.035 ................ 5
19-471.035 ................ 5
19-472.035 ................ 5
19-481.035 ................ 5
19-482.035 ................ 5
19-905 ..................... 13
19-906 ..................... 12
19-910 ..................... 12
19-931.0 .................... 7
19-931.2 .................... 7
19-931.4 .................... 7
19-931.5 .................... 7
19-931.6 .................... 7
19-931.8 .................... 7
19-931.9 .................... 7
19-932.2 .................... 7
19-932.4 .................... 7
19-932.5 .................... 7
19-932.6 .................... 7
19-932.7 .................... 7
19-940 ....................... 9
19-941 ....................... 9
19-948.0 .................... 8
19-949.0 .................... 8
19-951.0 .................... 7
19-951.2 .................... 7
19-951.4 .................... 7
19-951.5 .................... 7
19-951.6 .................... 7
19-951.8 .................... 7
19-951.9 .................... 7
19-952.2 .................... 7
19-952.4 .................... 7
19-952.5 .................... 7
19-952.6 .................... 7
19-952.7 .................... 7
19-991 ..................... 12
31-928 ....................... 9
31-945 ....................... 9
Part No. Page
19
Index from Part No.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
EAO:
19510330 19210352 19540354 19120354 19041352 19081357 19100254 19080350 19040252 19010253
19050362 19041357 19041257 19060352 19081352 19.03201.01 19000350 19041251 19000352 19050253
19041253 19100354 19010252 19041351 19050251 19081350 19050361 19510131 19-948.8 19080357
19000351 19030352 19010350 19041350 19030351 19371351 19401137 19401135 19401130 19590352
19030350 19TR0A12 19371357 19401132 19371350 19141254 19051350 19010357 19510431 19531350
19531351 19531352 19051250 19051251 19051252