AT494 NKK Switches, AT494 Datasheet - Page 5

• Manufacturer Part Number: AT494
• Description: PROTECTIVE GUARD KB SER SQ&RND
• Manufacturer: NKK Switches
• Type: Protective Guardr
• Series: ATr

Specifications of AT494

• Accessory Type: Protective Guard
• Height: 11.5 mm
• Length: 19 mm
• Mounting Style: SMD/SMT
• Termination Style: Snap On
• Width: 19 mm
• Brand/series: KB Series
• Switch Type: Push Button Switch
• Operating Temp Range: -25C to 70C
• For Use With/related Products: KB Series - Square/Round
• For Use With: 360-2019 - SWITCH PB ILLUM DPDT ALT GRN SLD360-2018 - SWITCH PB ILLUM DPDT ALT AMB SLD360-2017 - SWITCH PB ILLUM DPDT ALT RED SLD360-2013 - SWITCH PB ILLUM DPDT ALT GRN SLD360-2012 - SWITCH PB ILLUM DPDT ALT AMB SLD360-2011 - SWITCH PB ILLUM DPDT ALT RED SLD360-2010 - SWITCH PB ILLUM DPDT MOM GRN SLD360-2009 - SWITCH PB ILLUM DPDT MOM AMB SLD360-2008 - SWITCH PB ILLUM DPDT MOM RED SLD360-2004 - SWITCH PB ILLUM DPDT MOM GRN SLD360-2003 - SWITCH PB ILLUM DPDT MOM AMB SLD360-2002 - SWITCH PB ILLUM DPDT MOM RED SLD360-2001 - SWITCH PB ILLUM SPDT ALT GRN SLD360-2000 - SWITCH PB ILLUM SPDT ALT AMB SLD360-1999 - SWITCH PB ILLUM SPDT ALT RED SLD360-1995 - SWITCH PB ILLUM SPDT ALT GRN SLD360-1994 - SWITCH PB ILLUM SPDT ALT AMB SLD360-1993 - SWITCH PB ILLUM SPDT ALT RED SLD360-1992 - SWITCH PB ILLUM SPDT MOM GRN SLD360-1991 - SWITCH PB ILLUM SPDT MOM AMB SLD360-1990 - SWITCH PB ILLUM SPDT MOM RED SLD360-1986 - SWITCH PB ILLUM SPDT MOM GRN SLD360-1985 - SWITCH PB ILLUM SPDT MOM AMB SLD360-1984 - SWITCH PB ILLUM SPDT MOM RED SLD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 360-1004

NKK Switches • email: [e-mail] • Phone [phone] • Fax [phone]
AT634
5-volt
2-element
with 1 Resistor
AT611
Incandescent
AT635
LEDs are colored
in OFF state.
AT634
LEDs are colored
in OFF state.
See Supplement Index (page Z1) for complete explanation of operating range.
W
If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation and more lamp
G
Electrical specifications are determined at a basic temperature of 25 C. Lamp circuit is independent of switch operation.
A partitioned plastic guard is supplied with each switch to provide insulation between terminals.
Installation steps:
(1) Identify wire-to-terminal connections.
(2) Thread wires through the guard.
(+)
Silver Contacts
Gold Contacts
T-1
T-1
T-1 Bi-pin
1
1
⁄
⁄
2
4
Bi-pin
Bi-pin
(+)
AT615
Neon
(-)
For dimension drawings of lamps see the Accessories & Hardware Index (page Y1).
detail are shown in the Supplement; see Supplement Index (page Z1).
CONTACT MATERIALS, RATINGS, & TERMINALS
Voltage
Current
Endurance
Power Level
1A @ 125V AC & 250V AC
Logic Level
0.4VA maximum @ 28V AC/DC
Color Codes:
Forward Peak Current
Continuous Forward Current
Forward Voltage
Reverse Peak Voltage
Current Reduction Rate Above 25 C
Color Codes:
Forward Peak Current
Continuous Forward Current
Forward Voltage
Reverse Peak Voltage
Current Reduction Rate Above 25 C
Ambient Temperature Range for lamps below: -25 C ~ +50 C.
(-)
AT634
12-volt
4-element
with 2 Resistors
LAMP CODES & SPECIFICATIONS
V
I
Hours
Red
5C
Red
5C
Incandescent & Neon Lamps
Bright LED without Resistor
Bright LED with Resistor
(+)
(3) Solder the connections.
(4) Push the guard fully onto the switch body.
115mA
5V AC
Amber
Amber
05
5D
5D
7,000 average
Miniature Pushbuttons
Green
Green
12V AC
5F
5F
60mA
12
I
I
V
V
I
I
V
V
FM
F
FM
F
F
RM
I
F
RM
I
F
F
The .039" x .079" oblong
hole accommodates one
solid 20-gauge wire or two
solid or stranded 22-gauge
wires.
(-)
01
AT634
24-volt
4-element
with 2 Resistors
0.42mA/ C
Solder Lug
110V AC
10,000
1.5mA
30mA
20mA
25mA
01
1.9V
05
–––
–––
5V
5V
4V
No Code
www.nkkswitches.com
(+)
Resistor Codes
Recommended Resistors for
0.29mA/ C
Neon: 33K ohms for 110V
AC; 100K ohms for 220V AC
30mA
20mA
20mA
Series KB
2.0V
–––
–––
12
5V
5V
8V
(12.4) Dia
.488
No Resistor
.079
Thk = (0.2)
(2.0)
.039
(1.0)
.008
0.42mA/ C
(14.0) Dia
.551
Com = (0.1)
30mA
40mA
10mA
2.1V
16V
.071
24
–––
–––
(1.8)
(17.0)
.669
5V
5V
(5.0)
.197
.005
(-)
12-02