Low Profile Pushbuttons
Series UB2
Distinctive Characteristics
Wide selection of illumination effects is achieved with single and bicolor,
1- or 6-element LEDs, in flat, beveled, or sculptured caps. LED colors
include red, amber, green, white, blue, and orange (achieved by
lighting red and green simultaneously).
Combination of PCB mountability and short body allows use
in compact applications.
Small behind panel dimension for snap-in mounting in
tight spaces.
Snap-acting contact mechanism provides sensitive
actuation with audible feedback; quick-make,
quick-break characteristic limits arcing and
prolongs electrical life.
Patented latchdown mechanism, independent of
switching mechanism, gives outstanding stability
and reliability plus visible and tactile indication
of circuit status.
Terminals are epoxy sealed to lock out flux,
solvents, and other contaminants.
Momentary and alternate action circuits available in
the same space-saving body size.
Nonilluminated models available and shown in Pushbutton
section.
Matching indicators available and shown in Indicator section.
Actual Size
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12-02
Low Profile Pushbuttons
Series UB2
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
5A @ 125/250V AC or 5A @ 30V DC
Logic Level (code G):
0.4VA maximum @ 28V AC/DC maximum
Note: See Supplement Index (page Z1) to find explanation of operating range.
Other Ratings
Contact Resistance:
Insulation Resistance:
Dielectric Strength:
Mechanical Life:
Electrical Life:
Nominal Operating Force:
Contact Timing:
Travel:
50 milliohms maximum for silver; 100 milliohms maximum for gold
200 megohms minimum @ 500V DC
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
1,000,000 operations minimum for momentary &
200,000 operations minimum for alternate action
10,000 operations minimum for silver;
200,000 operations minimum for gold
Single Pole: 194 grams
Double Pole: 260 grams
Break before make
1.7mm (.067") pretravel; 0.6mm (.024") overtravel; 2.3mm (.091") total travel
Materials & Finishes
Housing/Bezel:
Snap-in Frame:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Switch Terminals:
Lamp Terminals:
Base:
Glass fiber reinforced polyamide
Stainless steel
Phosphor bronze
Silver alloy or copper with gold plating
Silver alloy or copper with gold plating
Phosphor bronze with silver or gold plating
Brass with silver plating
Glass fiber reinforced liquid crystal polymer
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
-25°C through +50°C (-13°F through +122°F) for Bright & Bicolor LEDs
-20°C through +50°C (-4°F through +122°F) for Super Bright LEDs
90 ~ 95% humidity for 240 hours @ 40°C (104°F)
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
50G (490m/s
2
) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Installation
Cap Installation Force:
Soldering Time & Temperature:
Process Seal:
15.00N (3.37 lbf) maximum downward force on cap
3 seconds @ 350°C or 5 seconds @ 270°C
Not available
Standards & Certifications
Flammability Standards:
UL & C-UL Recognized:
UL94V-0 rated base
All single & double pole models recognized at 5A @ 125/250V AC or
0.014A @ 28V DC; UL File No. WOYR2.E44145 & C-UL File No. WOYR8.E44145;
add "/U" to end of part number to order UL mark on switch & add "/U-C" to end of
part number to order C-UL mark on switch (equivalent to CSA certification)
R
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435
www.nkkswitches.com
12-02
Low Profile Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Series UB2
UB2
POLES
1
2
SPDT
DPDT
1
5
SK
G
03
5C
1JC
CONTACTS & RATINGS
W
G
Silver Rated 5A
@ 125/250V AC
Gold Rated 0.4VA max
@ 28V AC/DC max
LEDS
Bright LED
5C
Red
5D
Amber
5F
Green
Super Bright LED
(Combine Only with Cap
Color Codes 1JB, 2B, 3JB
)
CAP TYPES & COLORS
Sculptured Cap
Lens/Diffuser Colors
1JB
Clear/White
1JC
Clear/Red
1JD
Clear/Amber
1JF
Clear/Green
Beveled Cap
& Colors
2B
White
2C
Red
2D
Amber
2F
Green
Flat Cap
Lens/Diffuser Colors
3JB
Clear/White
3JC
Clear/Red
3JD
Clear/Amber
3JF
Clear/Green
CIRCUITS
5
ON
(ON)
( ) = Momentary
6
ON
ON
Alternate Action
with Latchdown
01
03
TERMINALS
Solder Lug (for
Snap-in Mounting)
Straight PC
Note: Lamp terminals are
PC/Turret
6B
6F
6G
White
Green
Blue
Bicolor LED
(Combine Only with Cap
Color Codes 1JB, 2B, 3JB
)
CF
Bicolor
MOUNTING TYPES
SK
PCB Mounting
Square
Snap-in Mounting *
KK
Square
* Standard with solder lug terminals
IMPORTANT:
Switches are supplied without UL
& C-UL marking unless specified.
Specific models & ratings noted
on General Specifications page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
UB215SKG035C-1JC
Gold Contacts with
0.4VA Rating
Square with PCB Mounting
Red, Bright LED and Sculptured Cap
with Clear Lens and Red Diffuser
SPDT ON-(ON) Circuit
Straight PC Terminals
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435
www.nkkswitches.com
12-02
Low Profile Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
SP
Model
UB215
UB216*
UB225
UB226*
ON
ON
ON
ON
(ON)
ON
(ON)
ON
Down
Series UB2
Connected Terminals
Normal
Down
Throw & Schematics
Notes: Switch is marked with NC, NO, COM, L+ & L-.
1
COM
2
NO
1-3
1-2
SPDT
3
NC
1
COM
NO
4
6
NC
COM
DP
1-3 4-6
1-2 4-5
DPDT
3
NC
2
5
NO
* When in latchdown position for the alternate circuit, cap positions above the housing are:
1.5mm (.059") for snap-in models & 7.0mm (.276") for PCB models.
SHAPES & MOUNTING TYPES
PCB Mounting
SK
Square
SP, Single Color LED
DP, Single Color LED
(5.08) Typ
.200
6
L (+)
3
SP, Bicolor LED
DP, Bicolor LED
(5.08) Typ
.200
6
LC+
3
(5.08)
.200
3
L (+)
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
(5.08)
.200
3
LC+
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
(5.08)
.200
2
L (–)
1
(5.08)
.200
5
L (–)
4
2
(5.08)
.200
(2.54)
.100
2
L1-
L2-
1
(5.08)
.200
5
L1-
4
L2-
2
1
1
C
L
C
L
C
L
(2.54)
.100
C
L
Snap-In Mounting (Solder Lug)
KK
Square with Bezel
(17.4) Sq
.685
Panel Thickness
1.0 ~ 3.2mm
(.039 ~ .126")
CONTACT MATERIALS & RATINGS
W
G
Silver Contacts
Gold Contacts
Power Level
5A @ 125V AC & 250V AC
Logic Level
0.4VA maximum @ 28V AC/DC maximum
See Supplement Index (page Z1) for complete explanation of operating range.
TERMINALS
01
Switch
Lamp
(5.0)
.197
(2.0)
.079
Solder Lug
(1.6)
.063
(0.2)
.008
03
Switch
Lamp
(0.2)
.008
(4.0)
.157
(1.0)
.039
Thk = (0.5)
.020
Straight PC
(0.2)
.008
(4.0)
.157
(1.0)
.039
Thk = (0.5)
.020
.032" x .063" oblong hole
accommodates two solid or
stranded 24-gauge wires.
(0.2)
.008
(4.0)
.157
(1.0)
.039
Thk = (0.5)
.020
(0.8)
.032
Thk = (0.5)
.020
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435
www.nkkswitches.com
12-02
Low Profile Pushbuttons
LED COLORS & SPECIFICATIONS
Series UB2
Electrical specifications are determined at a basic temperature of 25°C. LED circuit is independent of switch operation.
If the source voltage is greater than rated voltage, a ballast resistor is required.
The ballast resistor calculation and more lamp detail are shown in the Supplement; see Supplement Index (page Z1).
Bright, Super Bright, & Bicolor LEDs
Super Bright LED
is Electrostatic
Sensitive
Bright LEDs
Electrostatic
Sensitive Devices
Super Bright LEDs
Bicolor
Attention
5C
Color
I
FM
I
F
V
F
V
RM
Red
30
20
1.85
5
0.40
5D
Amber
30
20
2.0
5
0.42
5F
Green
25
20
2.1
5
0.46
Units
mA
mA
V
V
mA/°C
6B
White
25
20
3.6
5
0.40
6F
Green
25
20
3.5
5
0.40
6G
Blue
25
20
3.6
5
0.40
CF
Red/Green
60/60
48/48
1.8/2.0
5/5
1.0/1.0
-25°C ~ +50°C
Units
mA
mA
V
V
mA/°C
Forward Peak Current
Continuous Forward Current
Forward Voltage
Reverse Peak Voltage
Current Reduction Rate Above 25°C
∆I
F
Ambient Temperature Range
-25°C ~ +50°C
-20°C ~ +50°C
Bright
Single Color LED
with 1 element
(+)
(-)
Super Bright
Single Color LED
with 1 element
(+)
(-)
Bicolor LED
with 6 elements
Super Bright and Bicolor LEDs
combine only with cap color
codes 1JB, 2B, and 3JB.
LC (+)
L1 (-)
Red
L2 (-)
Green
Orange color can
be achieved by
lighting red and
green simulta-
neously on the bi-
color LED.
CAP TYPES & COLOR COMBINATIONS
1
AT3074 Sculptured
2
AT3075 Beveled
3
AT3076 Flat
(6.1)
.240
(5.6)
.220
(5.6)
.220
(15.0) Sq
.591
(15.0) Sq
.591
(15.0) Sq
.591
Clear Lens
Translucent
Colored Diffuser
Translucent
Colored Cap
Clear Lens
Translucent
Colored Diffuser
Lens/Diffuser
Colors Available:
Cap
Colors Available:
Lens/Diffuser
Colors Available:
JB
JC
Clear/
White
Clear/
Red
JD
JF
Clear/
Amber
Clear/
Green
B
C
White
Red
D
F
Amber
Green
JB
JC
Clear/
White
Clear/
Red
JD
JF
Clear/
Amber
Clear/
Green
Material: Polycarbonate
Finish: Glossy
Material: Polycarbonate
Finish: Glossy
Material: Polycarbonate
Finish: Glossy
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12-02
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