YB215CWCKW01-6B-JB Datasheet, PDF (7/11 Pages) Nihon Kaiheiki Industry Co. Ltd. – Panel Seal Pushbuttons

Series YB2
Panel Seal Pushbuttons
BALLAST RESISTOR CALCULATION FOR LEDS
If the source voltage is greater than the rated voltage of
a lamp or LED, a ballast resistor must be connected in
series with the lamp. This circuit diagram and formula
will assist in calculating the value of the required ballast
resistor.
R ₊ I_F
E
V_F
–
Anode
Cathode
CAPS & CAP COLORS
R = ^{E – VF}
I_F
Where: R = Resistor Value (Ohms)
E = Source Voltage (V)
V_F = Forward Voltage (V)
I_F = Forward Current (A)
AT3017 Cap for
Bright LED
AT3018 Cap for
Super Bright LED
AT3019 Cap for
Nonilluminated
D Lens/Diffuser Colors Available: Lens/Diffuser Colors Available: Cap Color Available:
AT3020 Cap with
Illumination Ring for
Bright or Super Bright LED
Cap Color Available:
JB _Clear/White
CB _Red/White
EB _{*Yellow/White}
FB _Green/White
JB _Clear/White
S _{Metallic Silver}
JS
Metallic Silver with
Clear Ring
(19.0) Dia
.748
Note: AT3017 Cap can
also be used without
illumination.
(19.0) Dia
.748
(19.0) Dia
.748
(13.1)
.516
(4.9)
.193
(13.1)
.516
(4.9)
.193
(19.0) Dia
.748
(13.1)
.516
(4.9)
.193
Material for Lens & Diffuser: Polycarbonate
(13.1)
.516
(4.9)
.193
Materials
Lens: Polycarbonate
Insert: Polyester
*Yellow cap pairs with amber LED to achieve amber illumination.
AT3025 Cap for
Illuminated
Lens/Diffuser Colors Available:
JB
Clear/White
For Bright & Superbright LEDs
CB
Red/White
For Bright LED only
EB
* Yellow/White
For Bright LED only
FB
Green/White
For Bright LED only
AT3027 Cap for
Nonilluminated
(18.0) Sq
.709
Cap Color Available:
S _{Metallic Silver}
Note: AT3025 Cap can also be
used without illumination.
(13.1)
.516
(4.9)
.193
(18.0) Sq
.709
(13.1)
.516
(4.9)
.193
*Yellow cap
pairs with amber LED
to achieve amber illumination.
Material for Lens & Diffuser: Polycarbonate
D120
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