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CN-0024
Change Notice
MS & SS Illuminated Series
LED Specifications
Type of Change:
Engineering
Product
Part Number
Appearance
MS Illuminated Slide
SS Illuminated Slide
The new LED specifications for MS and SS Illuminated slides supersede all previous specifications. Changes affect all models
in MS LED Illuminated Series, and all SS LED Illuminated, both standard and custom switches.
LED Specifications
From Current LED
Specifications for
MS and SS Illuminated
Isolated Single Element
(+)
(-)
To New LED Specifications
for MS and SS Illuminated
C
E
F
C
E
F
Red
Yellow
Green
Red
Yellow
Green
Forward Peak Current
I FM
20mA
20mA
20mA
30mA
30mA
25mA
Continuous Forward Current
IF
16mA
16mA
16mA
16mA
16mA
16mA
Forward Voltage (I F = 16mA)
VF
2.07V
2.15V
2.16V
1.98V
2.06V
2.16V
Reverse Peak Voltage
VRM
3V
4V
4V
5V
5V
5V
Current Reduction Rate Above 25°C
∆ IF
0.40mA/°C
0.42mA/°C
0.33mA/°C
0.27mA/°C
Ambient Temperature Range for MS
–10°C ~ +55°C
–15°C ~ +60°C
Ambient Temperature Range for SS
–15°C ~ +60°C
–15°C ~ +60°C
LEDs are an integral part of the switch and not available separately.
The lamp circuit is independent of switch operation.
Electrical specifications are determined at a basic temperature of 25°C.
If the source voltage exceeds rated voltage, a ballast resistor is required.
The resistor value can be calculated by using the formula shown here.
R
+
IF
Anode
VF
E
Cathode
–
R =
Where: R =
E =
VF =
IF =
E – VF
IF
Resistor Value (Ohms)
Source Voltage (V)
Forward Voltage (V)
Forward Current (A)
Availability
MS and SS Illuminated Series with new LED specifications are available immediately.
www.nkkswitches.com
1-877-2BUYNKK
1-877-228-9655
Engineering Department
7850 East Gelding Drive • Scottsdale, AZ 85260
Phone 480-991-0942 • Fax 480-998-1435
7/12/07
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