Low Profile Pushbuttons
Series UB
Distinctive Characteristics
Bright or super bright LEDs (an integral part of the switch) of red,
amber, green, blue, or white, in full face or spot illumination
plus square or rectangular models.
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.
Latchdown mechanism, independent of
switching mechanism, gives 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.
Actual Size
Matching indicators available and shown at the end of Section M.
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Low Profile Pushbuttons
Series UB
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
Logic Level (code G):
5A @ 125/250V AC or 5A @ 30V DC
0.4VA maximum @ 28V AC/DC maximum
(Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Note: Find additional explanation of operating range in Supplement section.
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;
100,000 operations minimum for silver with resistive load of 3A @ 125V AC
200,000 operations minimum for gold
Single Pole: 1.9N for Square & 1.9N for Rectangular
Double Pole: 2.55N for Square & 3.1N for Rectangular
Break before make
Pretravel .067” (1.7mm); Overtravel .024” (0.6mm); Total Travel .091” (2.3mm)
Materials & Finishes
Housing/Bezel:
Snap-in Frame:
Movable Contactor:
Movable Contacts:
Stationary Contacts:
Switch Terminals:
Lamp Terminals:
Base:
Glass fiber reinforced polyamide (UL94V-0)
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 (UL94V-0)
Environmental Data
Operating Temp Range:
Humidity:
Vibration:
Shock:
–25°C through +50°C (–13°F through +122°F)
90 ~ 95% humidity for 96 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 & Temp:
Cleaning:
7.55N (1.70 lbf) maximum downward force on cap
Wave Soldering (PC version): See Profile A in Supplement section.
Manual Soldering: See Profile A in Supplement section.
These devices are not process sealed. Hand clean locally using alcohol based solution.
Standards & Certifications
Flammability Standards:
UL & C-UL Recognized:
R
CSA Certified:
UL94V-0 housing/bezel & base
All single & double pole models recognized at 5A @ 125/250V AC or 0.014A @ 28V DC;
UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch.
C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch
All single & double pole models certified at 5A @ 125/250V AC or 5A @ 30V DC or
0.4VA maximum @ 28V AC/DC maximum; CSA File No. 023535-0-000;
add “/C” to end of part number to order CSA mark on switch.
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Low Profile Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Series UB
CC
UB
POLES
1
2
SPDT
DPDT
1
5
SK
G
03
5C
CAP TYPES & COLORS
Full Face Illuminated Cap
for Bright LED
Lens/Diffuser Colors
CB
Red/White
Red/Clear
FF
*
FJ
JB
Green/Green
Green/Clear
Clear/White
CC
Red/Red
CIRCUITS
5
6
ON
ON
(ON)
ON
( ) = Momentary
Alternate Action
with Latchdown
CONTACTS & RATINGS
W
G
Silver Rated 5A
@ 125/250V AC
Gold Rated 0.4VA max
@ 28V AC/DC max
LEDS
Bright LED
5C
5D
5F
Red
Amber
Green
*
CJ
DB
Amber/White
DD
Amber/Amber
*
DJ
FB
Amber/Clear
Green/White
JC
Clear/Red
JD
Clear/Amber
JF
*
JJ
Clear/Green
Clear/Clear
* Not available with Rectangular cap
Full Face Illuminated Cap
for Super Bright LED
JB
Clear Lens/White Diffuser
For Square only; see cap detail page
Spot Illuminated Cap
for Bright & Super Bright LEDs
AB
Black with White Window
Rectangular available for Bright only
Super Bright LED
MOUNTING TYPES
PCB Mounting
SK
RK
KK
NK
NBK
Square
Rectangular
Square
Rectangular
Rectangular with
Side Barriers
6B
White
Green
Blue
TERMINALS
Solder Lug (for
01
Snap-in
Mounting)
03
Straight PC
6F
6G
* Snap-in Mounting
Available with
Square only
* Standard with Solder
Lug terminals
IMPORTANT:
Switches are supplied without UL, C-UL, & CSA
markings unless specified. Specific models &
ratings noted on General Specifications page.
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
UB15SKG035C-CC
Red, Bright LED and Red Lens
with Red Diffuser
SPDT ON-(ON) Circuit
Square with PCB Mounting
Straight PC Terminals
Gold Contacts with
0.4VA Rating
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Low Profile Pushbuttons
POLES & CIRCUITS
Plunger Position
( ) = Momentary
Normal
Pole
SP
DP
Model
UB15
*UB16
UB25
*UB26
ON
ON
ON
ON
(ON)
ON
(ON)
ON
1-3
1-3 4-6
1-2
1-2 4-5
SPDT
3
1
COM
NO
6
Series UB
Connected Terminals
Normal
Down
Notes:
Throw & Switch/Lamp Schematics
Switch is marked with NC, NO, COM, L+ & L–.
Lamp circuit is isolated and requires an external
power source.
1
NC
COM
(+)
(-)
Down
2
NO
4
NC
COM
(+)
(-)
DPDT
3
NC 2
5
NO
* When in latchdown position for the alternate circuit, cap position is .039” (1.0mm) above the housing.
MOUNTING TYPES & SHAPES
PCB Mounting
SK
Square
(5.08)
.200
L+
3
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
(5.08) Typ
.200
6
L+
5
L-
4
3
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
RK
Rectangular
(7.62)
.300
L+
3
(2.54) Typ
.100
6
(7.62) Typ
.300
L+
3
(2.54) Typ
.100
(10.16)
.400
(1.2) Dia Typ
.047
2
L-
1
2
1
2
L-
1
(10.16)
.400
(1.2) Dia Typ
.047
5
L-
4
2
1
C
L
C
L
C
L
C
L
Single Pole
Double Pole
Snap-in Mounting (Solder Lug)
Single Pole
Double Pole
KK
Square
with Built-in Bezel
NK
Rectangular
with Built-in Bezel
NBK
Rectangular with Built-in
Side Barriers
(16.2)
.638
(16.2) Sq
.638
(22.4)
.882
Snap-in Mounting with Solder Lug terminals is the standard combination. Panel Thickness: .039 ~ .126” (1.0 ~ 3.2mm)
CONTACT MATERIALS & RATINGS
W
G
Silver Contacts
Power Level
5A @ 125V AC & 250V AC
Gold Contacts
Logic Level
0.4VA maximum @ 28V AC/DC maximum
Complete explanation of operating range in Supplement section.
TERMINALS
01
Solder Lug
(1.6)
.063
(0.2)
.008
(5.0)
.197
03
Straight PC
(2.0)
.079
(0.8)
.032
Thk = (0.5)
.020
(0.2)
.008
(4.0)
.157
(1.0)
.039
Thk = (0.5)
.020
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Low Profile Pushbuttons
LED COLORS & SPECIFICATIONS
Series UB
The electrical specifications shown are determined at a basic temperature of 25°C.
LED circuit is isolated and requires external power source. Polarity marks are on the bottom of the switch.
If the source voltage exceeds the rated voltage, a ballast resistor is required.
The resistor value can be calculated by using the formula in the Supplement section.
The LED is an integral part of the switch and not available separately.
Super Bright LEDs are
Electrostatic Sensitive
(+)
(-)
Electrostatic
Sensitive Devices
Attention
Bright
Super Bright
5C
Red
30
20
1.85
5
0.40
5D
Amber
30
20
2.0
5
0.42
–25° ~ +50°C
5F
Green
25
20
2.1
5
0.46
6B
White
25
20
3.8
5
0.47
6F
Green
25
20
3.8
5
0.47
–25° ~ +50°C
6G
Blue
25
20
3.8
5
0.47
Unit
mA
mA
V
V
mA/°C
Color
I
FM
I
F
V
F
V
RM
∆I
F
Forward Peak Current
Continuous Forward Current
Forward Voltage
Reverse Peak Voltage
Current Reduction Rate Above 25°C
Ambient Temperature Range
CAP TYPES & COLOR COMBINATIONS
Full Face Illuminated Cap for Bright LED
Lens/Diffuser
Colors Available for Square Cap:
Lens/Diffuser
Colors Available for Rectangular Cap:
(3.0)
.118
(12.0) Sq
.472
CB
CC
CJ
DB
DD
DJ
FB
FF
FJ
JB
JC
JD
JF
JJ
AT4074
Lens
CB
CC
DB
FB
FF
JB
JC
JD
JF
AT4117
Lens
(12.0)
.472
(17.0)
.669
(3.0)
.118
AT4075
Diffuser
(0.5)
.020
(10.35) Sq
.407
DD
AT4118
Diffuser
(10.35)
.407
(0.5)
.020
(15.35)
.604
Lens & Diffuser Material: Polycarbonate
Lens Finish: Glossy
Diffuser Finish: Textured
Lens/Diffuser
Colors Available for Square Cap:
Full Face Illuminated Cap for Super Bright LED
Rectangular lens & diffuser are not
available for combining with super
bright LED.
Lens Finish: Glossy
Diffuser Finish: Textured
JB
AT4074 Lens & AT4075 Diffuser
(Dimensioned above)
Lens & Diffuser Material: Polycarbonate
Spot Illuminated Caps
AB
Black Cap with Translucent
White Window for LED Display
Material: Polycarbonate
Finish: Matte
AT4119 Square
for Bright and
Super Bright LED
(1.9)
.075
(5.0)
.197
(12.0) Sq
.472
(3.1)
.122
(3.0)
.118
AT4120 Rectangular
for Bright LED
(5.0)
.197
(12.0)
.472
(1.9)
.075
(3.1)
.122
(3.0)
.118
(17.0)
.669
Color Codes:
A
Black
B
White
C
Red
D
Amber
F
Green
J
Clear
03-07
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
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