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Miniature Pushbuttons
CONTACT MATERIALS, RATINGS & TERMINALS
Series KB
W
G
Silver Contacts
Gold Contacts
Power Level
1A @ 125V AC & 250V AC
Logic Level
0.4VA maximum @ 28V AC/DC
01
Solder Lug
(2.0)
.079
(1.0)
.039
(5.0)
.197
(1.8)
.071
Complete explanation of operating range in Supplement section.
Thk = (0.2) Com = (0.1)
.008 .005
AT055 Crossover Guard
A partitioned plastic guard is supplied with each switch to provide insulation between terminals.
(12.4) Dia
.488
(14.0) Dia
.551
Installation steps:
1. Identify wire-to-terminal connections.
2. Thread wires through the guard.
3. Solder the connections.
4. Push the guard fully onto the switch body.
(17.0)
.669
D
BARRIER TYPE
No Code
No Barrier
Built-in bezel
B
With Barrier
Built-in barrier only available for Square and Rectangular
LAMP COLORS & SPECIFICATIONS
The electrical specifications shown are determined at a basic temperature of 25°C.
LED circuit is isolated and requires external power source. Polarity marks are on the bottom of the switch.
If the source voltage exceeds the rated voltage, a ballast resistor is required.
The resistor value can be calculated by using the formula in the Supplement section.
Ambient Temperature Range for lamps below: –25°C ~ +50°C.
Incandescent & Neon Lamps
AT611
Incandescent
AT615
Neon
Voltage
Current
V
I
05
5V AC
115mA
12
12V AC
60mA
01
110V AC
1.5mA
Recommended Resistors
for Neon:
33K ohms for 110V AC;
100K ohms for 220V AC
T-1 Bi-pin
Endurance
Hours
7,000 average
10,000
No Code
No Lamp
Bright LED with Resistor
AT634
Red
Amber
Green
Resistor Codes
LEDs are colored
in OFF state.
Color Codes: 5C
Forward Peak Current
Typical Forward Current
Forward Voltage
5D
5F
I FM
I F
V F
05
—
25mA
5V
12
—
20mA
12V
24
—
10mA
24V
T-1 1 ? 4 Bi-pin
Reverse Peak Voltage
Current Reduction Rate Above 25°C
V RM
?I F
4V
—
8V
—
16V
—
5-volt
2-element
12-volt
4-element
24-volt
AT634
(+)
with 1 Resistor
(-)
AT634
(+)
with 2 Resistors
(-)
AT634
(+)
4-element
with 2 Resistors
(-)
www.nkk.com
D27
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