AT478JC NKK Switches, AT478JC Datasheet - Page 9

• Manufacturer Part Number: AT478JC
• Description: SW CAP SQUARE SW CAP CLEAR RED
• Manufacturer: NKK Switches
• Series: LBr
• Type: Cap, Square for LED with Lens/Diffuserr

Specifications of AT478JC

• Switch Type: Pushbutton
• Shape: Square
• Color: Clear, Red
• Illumination: Illuminated
• Mounting Type: Snap Fit
• Size: 13.20mm L x 13.20mm W x 3.50mm H
• Height: 10 mm
• Length: 13.2 mm
• Mounting Style: SMD/SMT
• Termination Style: Snap On
• Width: 13.2 mm
• For Use With/related Products: LB Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: LB Series

NKK Switches • email: [e-mail] • Phone [phone] • Fax [phone]
Align projections on
lamp with grooves
(B) in holder when
inserting lamp.
To correctly join the
lamp holder and cap
base, match the cut
corners (A).
Match projection (C) on cap
assembly with groove (C)
inside switch. Lamp terminals
will then be aligned correctly
with lamp socket.
Snap-in clip holds all switches
firmly in place.
To mount round
switch, match
the antirota-
tion projec-
tion on
switch with
guide cut in
panel. Snap
into panel
cutout.
B
B
Snap-in Mount
Incandescent & Neon Lamps
Square
C
C
Projection
AT607 & AT607N
Panel
A
R
Match clip on cap assembly with receptacle inside
switch. Lamp terminals will then be aligned correctly
with lamp socket.
Insert switch from the
front of the panel with
the o-ring between the
built-in bezel and the
panel. Install mounting
nut AT074 (supplied with
switch) from the rear of
the panel.
Overtightening mounting
nut may damage the
switch housing.
ASSEMBLY INSTRUCTIONS
Lamp Installation & LED Orientation
Bushing Mount
Round & Rectangular
Panel Seal
Installation & Maintenance
Align cut corners (C) when inserting
the LED.
Switch & Cap Assembly
AT626, AT627
Bright LEDs
C
LED
O-ring
Mounting Nut
Bezel
Panel
Cap Extractor
Standard Size Pushbutton Switches
Align D-flat on LED with flat (B) in
holder when inserting the LED.
To correctly join the lamp holder and
cap base, match the cut corners (A).
Match projection on cap assembly with
notch inside switch. Lamp terminals will
then be aligned correctly with lamp
socket.
AT109
Actuator must be in Up position.
Pull off cap with cap extractor
AT109.
Replace lamp and reassemble as
shown above.
AT625, AT631, AT632
Projection
Series LB
Round Panel Seal
Super Bright LEDs
Notch
Cut Corner
Lamp Replacement
www.nkkswitches.com
LED
D Flat
Socket Wrench
Sensitive Devices
Attention
Electrostatic
A
Rubber Seal
AT112
Projection
B
5-8-01