Ultra-Thin Pushbuttons
Series GB2
Distinctive Characteristics
Unique, off-center actuator allows high density setup and easy
actuation while avoiding accidental operation in compact
environments.
Side-by-side, block mounting can be achieved by use of
bracket AT546 on straight PC mounting types.
Off-Momentary On Circuit.
Black, white, and red snap-on caps available.
Extremely thin size allows high density PCB
mounting and makes these switches ideal for
handheld equipment.
Award-winning STC contact mechanism with
benefits unavailable in conventional mech-
anisms: smoother, positive detent actuation,
increased contact stability and unparalleled
logic-level reliability. (Additional STC details
in Terms & Acronyms; see Supplement section.)
Molded-in, epoxy sealed terminals lock out flux and other
contaminants.
.100” x .100” (2.54mm x 2.54mm) terminal spacing conforms to
standard PC board grid spacing for straight and angle mounting.
Actual Size
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
2-06
Ultra-Thin Pushbuttons
Series GB2
General Specifications
Electrical Capacity (Resistive Load)
Logic Level:
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:
Travel:
80 milliohms maximum
500 megohms minimum @ 500V DC
500V AC minimum for 1 minute minimum
50,000 operations minimum
50,000 operations minimum
1.0N
Pretravel .020” (0.5mm); Overtravel .023 (0.6mm); Total Travel .043” (1.1mm)
Materials & Finishes
Actuator:
Case:
Movable Contacts:
Stationary Contacts:
Base:
Mounting Bracket:
Terminals:
Glass fiber reinforced polyamide (UL94V-0)
Glass fiber reinforced polyamide (UL94V-0)
Phosphor bronze with gold plating
Brass with gold plating
Glass fiber reinforced polyamide (UL94V-0)
Phosphor bronze with tin plating
Brass with gold plating
Environmental Data
Operating Temperature Range:
Humidity:
Vibration:
Shock:
–25°C through +70°C (–13°F through +158°F)
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)
PCB Processing
Soldering:
Cleaning:
Wave Soldering recommended. See Profile B in Supplement section.
Manual Soldering: 4 seconds maximum @ 390°C maximum.
These devices are not process sealed. Hand clean locally using alcohol based solution.
See Cleaning Specifications in Supplement section.
Standards & Certifications
Flammability Standards:
UL Recognition
or CSA Certification:
UL94V-0 actuator, case, & base
The GB2 Series pushbuttons have not been tested for UL recognition or CSA certification.
These switches are designed for use in a low-voltage, low-current, logic-level circuit.
When used as intended in a logic-level circuit, the results do not produce hazardous energy.
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
2-06
Ultra-Thin Pushbuttons
TYPICAL SWITCH ORDERING EXAMPLE
Series GB2
GB2
POLE
1
SPST
1
5
A
B
CAP COLORS
PC TERMINALS
P
Straight
Straight with Bracket
Right Angle 1 Switch
Right Angle 2 Switches
B
H
With P, B, or H Terminals
for Single Switches
A
B
C
Black
White
Red
CIRCUIT
5
OFF
(ON)
A
( ) = Momentary
PLUNGER
Standard
2H
With Terminal Code 2H for
2 Right Angle Switches
Upper
*Lower
Black
White
Red
A
B
C
A
B
C
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
GB215AB
Standard Plunger
SPST
OFF-(ON) Circuit
* Nearest to PC Board
Straight PC Terminals
with Bracket
POLE & CIRCUIT
Plunger Position
( ) = Momentary
Normal
Pole
Model
1-2
SP
GB215
OFF
(ON)
OPEN
1-2
3-4
SPST
SPST with
2 switches
1
3
Connected Terminals
Normal
Down
Note:
Throw & Schematics
Terminal numbers are not
actually on the switch.
Down
1
2
2
4
TYPICAL SWITCH DIMENSIONS
Straight PC
(0.3) Typ
.012
(7.0)
.276
(2.4)
.094
Single Pole
(2.7)
.106
(3.0)
.118
(1.7)
.067
(2.0)
.079
(2.0)
.079
(1.27) Typ
.050
(3.2)
.126
(7.0)
.276
(3.1)
.122
1
2
1
2
(2.5)
.098
(0.5) Sq Typ
.020
(2.54) Typ
.100
(0.8) Dia Typ
.031
GB215AP
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
2-06
Ultra-Thin Pushbuttons
TYPICAL SWITCH DIMENSIONS
Straight PC with Bracket
(2.4)
.094
(7.6)
.299
(1.7)
.067
(2.7)
.106
(3.0)
.118
(2.0)
.079
(2.0)
.079
Series GB2
Single Pole
(0.9)
.035
(1.3)
.051
(0.565)
.0222
1
2
(0.5)
.020
(7.62)
.300
(8.5)
(1.27) Typ
.335
.050
(0.25) Typ
.010
1
(0.5) Sq Typ
.020
(2.75)
.108
2
(2.54) Typ
.100
(0.8) Dia Typ
.031
(2.5)
.098
(3.2)
.126
(7.0)
.276
(3.1)
.122
GB215AB
Right Angle PC
(7.6)
.299
(3.0)
.118
(3.25)
.128
(0.9)
.035
(1.3)
.051
(2.4)
.094
(1.7)
.067
(0.25) Typ
.010
Single Pole with 1 Switch
(2.7)
.106
(1.75)
.069
(3.2)
.126
(1.3)
.051
(0.5)
.020
(2.0)
.079
(0.5) (3.25)
.020 .128
(3.1)
.122
1
2
(2.54) Typ
.100
(0.5) Sq Typ
.020
(1.27) Typ
.050
(5.08)
.200
2
1
(2.54)
.100
(7.62)
.300
(1.75)
.069
(2.9) (5.08)
.114 .200
(0.56)
.022
(0.525) Typ
.0207
(8.42)
.3315
(7.62)
.300
(0.8) Dia Typ
.031
GB215AH
Right Angle PC
(7.6)
.299
(3.0)
.118
Single Pole with 2 Switches
(2.7)
.106
3
4
(2.4)
.094
(3.2)
.126
(4.25)
.167
(0.9)
.035
(1.3)
.051
(1.7) Typ
.067
(1.75)
.069
(0.25) Typ
.010
(1.3)
.051
(0.5)
.020
(2.0)
.079
(5.75)
.226
(0.5) (3.1)
.020 .122
(2.54)
.100
(2.54) Typ
.100
4
3
1
2
(7.62)
.300
(1.75)
.069
(2.9) (5.08)
.114 .200
(0.56)
.022
(2.54)
.100
(0.525) Typ
.0207
(8.42)
.3315
(0.5) Sq Typ
.020
(1.27) Typ
.050
(5.08)
.200
2
1
(2.54)
.100
(0.8) Dia Typ
.031
(7.62)
.300
GB215A2H
SNAP-ON CAP & MOUNTING BRACKET
A
B
C
AT4137 Rectangular Snap-on Cap
Black
AT4137 Rectangular Snap-on Cap
White
AT4137 Rectangular Snap-on Cap
Red
Material: PBT
Finish: Glossy
(2.0)
.079
Actual Size
(3.0)
.118
(3.2)
.126
AT546
Mounting Bracket
for Block Mounting
(0.25)
.010
(7.5)
.295
(6.5)
.256
Material:
Phosphor Bronze
with Tin Plating
(0.5) Typ
.020
(3.1)
.122
(7.62)
.300
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
2-06
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