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CN-0216-B
Change Notice
KB, LB, YB & YB2 Series
Change of Super Bright LED Specifications for AT625G (Blue)
used in KB, LB, YB & YB2 Pushbuttons & KB, LB & YB Indicators
Type of Change:
Engineering
Product
Part Number
Appearance
All models of KB, LB, YB and YB2 Pushbuttons and KB, LB
and YB Indicators with the super bright LED AT625G will
have a change to the specifications. The change will effect
all standard and custom products with a blue LED for these
series.
LB Pushbutton
YB2 Pushbutton
YB Indicator
SUPER BRIGHT LED CODES & SPECIFICATIONS
Before Change
Super Bright LEDs are
Electrostatic Sensitive.
Electrical specifications
are determined at a
basic temperature of
25°C. The lamp circuit
is isolated and requires
an external power
source.
ATTENTION
ELECTROSTATIC
SENSITIVE DEVICES
6G
Color
Blue
After Change
6G
Blue
Maximum Forward Current
I FM
30mA
30mA
Typical Forward Current
IF
20mA
20mA
Forward Voltage
VF
3.6V
3.3V
( I F = 20 )
( I F = 20 )
Maximum Reverse Voltage
VR M
5V
7V
Current Reduction Rate Above 25°C
∆I F
0.50mA/°C
0.40mA/°C
–25°C ~ +50°C
–25°C ~ +50°C
Ambient Temperature Range
If the source voltage exceeds the rated voltage, a ballast resistor
is required. The resistor value can be calculated by using the
formula shown here.
Notes:
There are no changes to external dimensions for the LED.
Contact factory if further details are needed.
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)
Effective Date
Changes to LEDs will be effective with January 2014 production.
http://www.nkkswitches.com • 1.877.2BUYNKK (228.9655)
7850 East Gelding Drive • Scottsdale, AZ 85260 • Telephone 480.991.0942 • Fax 480.998.1435
2014/02/03 Engineering Department
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