Series BB Process Sealed Subminiature Antistatic Pushbuttons
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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: 50 milliohms maximum
Insulation Resistance: 500 megohms minimum @ 500V DC
Dielectric Strength: 500V AC minimum for 1 minute minimum
Mechanical Life: 50,000 operations minimum (momentary)
25,000 operations minimum (alternate action)
Electrical Life: 50,000 operations minimum (momentary)
25,000 operations minimum (alternate action)
Nominal Operating Force: 2.55N (momentary); 2.94N (alternate action)
Contact Timing: Nonshorting
Travel: Momentary: Pretravel .028” (0.7mm); Overtravel .016” (0.4mm); Total Travel .043” (1.1mm)
Alternate: Pretravel .039” (1.0mm); Overtravel .039” (1.0mm); Total Travel .079” (2.0mm)
Materials & Finishes
Plunger: Polyacetal
Bushing: Carbon blended polyamide
Case Housing: Glass fiber reinforced polyamide
Support Bracket: Tin plated phosphor bronze
Movable Contact: Phosphor bronze with gold plating
Stationary Contacts: Copper alloy with gold plating
Terminals: Copper alloy with gold plating
Environmental Data
Operating Temp Range: –30°C through +85°C (–22°F through +185°F)
Humidity: 90 ~ 95% humidity for 96 hours @ 40°C (104°F)
Vibration: 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
Shock: 50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction)
Installation
Cap Installation Force: 49.03N (11.2 lbf) maximum downward force on actuator;
actuator must be in UP position to remove cap from alternate action models
PCB Processing
Soldering: Wave Soldering Recommended: See Profile A in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Cleaning: Automated cleaning. See Cleaning specifications in Supplement section.
Standards & Certifications
Flammability Standards: UL94V-0 available
The BB 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.
Series BB
Process Sealed Subminiature Antistatic Pushbuttons
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Distinctive Characteristics
Subminiature size (1/3 size of Series M switches) saves space on PC boards.
Specifically developed for logic-level applications.
Available in momentary and maintained circuits.
Industry’s smallest alternate action (maintained)
pushbutton with latchdown feature providing
visible, audible, and tactile feedback.
Antistatic superstructure, consisting of the carbon
impregnated bushing and the support bracket,
prevents static discharge to the contacts. Static
electricity from an operator’s touch travels from
the actuator through the bushing and bracket to
the PC board.
Award-winning STC contact mechanism with
benefits unavailable in conventional mechanisms:
smoother, positive detent actuation, increased
contact stability and unparalleled logic-level
reliability. (Additional STC details in Terms &
Acronyms; see Supplement section.)
Smooth, 6mm diameter bushing simplifies panel layout.
Totally sealed body construction prevents contact contamination
and allows time- and money-saving soldering and cleaning.
.100” x .100” (2.54mm x 2.54mm) terminal spacing conforms to standard
PC board grids. Actual Size
Series BB Process Sealed Subminiature Antistatic Pushbuttons
www.nkk.com
C14
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
Pushbuttons
Illuminated PB
Slides Programmable Rockers
Touch Tilt Toggles
Poles
1SPDT
2DPDT
TYPICAL SWITCH ORDERING EXAMPLE
SPDT
ON-(ON) Circuit
Right Angle PC Terminals
Black .201” (5.1mm)
Diameter Cap
DESCRIPTION FOR TYPICAL ORDERING EXAMPLE
BB15AH-FA
Plunger
A.213” (5.4mm) Long
Cap Colors
ABlack
BWhite
CRed
Circuits
5ON (ON)
( ) = Momentary
6ON ON
Alternate Action has Latchdown.
BB16 has a Double Pole case.
Caps
F.201” (5.1mm) Diameter
H .295” (7.5mm) Diameter
1BB A5 H F A
.213” (5.4mm) Long
White Plunger
PC Terminals
PStraight
* B Straight with Bracket
* H Right Angle with Bracket
* V Vertical with Bracket
WStraight Long
* Bracketed models are ESD protected
Series BB
Process Sealed Subminiature Antistatic Pushbuttons
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PLUNGERS
SLIP-ON CAPS
PC TERMINALS
Material: Polyamide
.213” (5.4mm) Long
AT475
.201” (5.1mm) Diameter Cap
AT496
.295” (7.5mm) Diameter Cap
Material: Polyamide
Straight
Vertical with Bracket
Straight
with Bracket
Colors Available: Black White Red
A
P
V
B
FH
A B C
(4.2)
.165
(2.8) Dia
.110
(5.4)
.213
(2.8) Dia
.110
Standard Plunger Color: White
Contact factory for other colors and lengths.
Both single pole and double pole
alternate action models have
double pole bases.
See Typical Switch Dimensions
for details.
Right Angle with Bracket
HStraight Long
W
(2.54) Typ
.100 (0.6) Dia Typ
.024
(3.1) Typ
.122
(5.08)
.200
(3.1)
.122
(0.4) Typ
.016
(0.6) Dia Typ
.024
(2.54) Typ
.100
(10.16)
.400
(5.08)
.200
(5.08)
.200
(0.6) Typ
.024
(0.4)
.016
(0.5) Typ
.020
(0.6)
.024
(2.54) Typ
.100
(2.54) Typ
.100(0.6) Dia Typ
.024
(0.4)
.016
(0.6)
.024
(2.54) Typ
.100
(0.6) Dia Typ
.024
(0.5) Typ
.020
(5.08)
.200
(18.9)
.744
(2.54) Typ
.100
(0.6) Dia Typ
.024
Plunger Position
( ) = Momentary Connected Terminals Throw & Schematics
Pole Model
Normal Down Normal Down Note: Terminal numbers are not
actually on the switch.
SP BB15
BB16
ON
ON
(ON)
ON 2-3 2-1 SPDT
DP BB25
BB26
ON
ON
(ON)
ON 2-3 5-6 2-1 5-4 DPDT
POLES & CIRCUITS
2 (COM)
3
1
3
1
2
4
5
6
(COM)
Latchdown
Position
Normal
Position
Use of a support bracket is recommended to increase PCB mounting strength and stability.
(5.1) Dia
.201
(6.3)
.248 (5.4)
.213
(2.8) Dia
.110
(4.0)
.157
(7.5) Dia
.295
(2.8) Dia
.110
(4.0)
.157
(6.3)
.248 (5.4)
.213
Series BB Process Sealed Subminiature Antistatic Pushbuttons
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TYPICAL SWITCH DIMENSIONS
Straight PC Single Pole
Straight PC • Bracket Single Pole
Straight PC Double Pole BB16AP
Straight PC • Bracket Double Pole BB16AB
BB15AP-FA Momentary
BB25AP-FA Momentary & Alternate Alternate
BB15AB-FA Momentary
BB25AB-FA Momentary & Alternate Alternate
2
3
1
(2.54) Typ
.100
(2.54)
.100
(0.8) Dia Typ
.031
C
L
(0.8) Dia Typ
.031
3
1
2
5
6
4
(2.54) Typ
.100
(5.08)
.200
(2.54) Typ
.100
3
1
2
(0.8) Dia Typ
.031
(1.0)
.039
C
L
3
1
2(2.54) Typ
.100
(0.8) Dia Typ
.031
(1.0)
.039
C
L
(2.54)
.100
Slot
(6.8)
.268
(6.0) Dia
.236
(5.1) Dia
.201
(4.0)
.157
(2.8) Dia
.110
(3.5)
.138
(0.8)
.031
(5.4)
.213 (2.54) Typ
.100
(0.6) Dia Typ
.024
(6.3)
.248
(3.1)
.122
(13.1)
.516
(8.8)
.346
1
2
3
(1.0)
.039
C
L
COM
Slot
(8.8)
.346
(6.0) Dia
.236
(5.1) Dia
.201
(4.0)
.157
(2.8) Dia
.110
(3.5)
.138
(0.8)
.031
(5.4)
.213 (2.54) Typ
.100
(0.6) Dia Typ
.024
(6.3)
.248 (3.1)
.122
(13.1)
.516
(8.8)
.346
(5.08)
.200
COM
3
2
1
6
5
4
(2.54)
.100
1
2
3
(8.8)
.346
COM
Slot
(8.0)
.315
(6.0) Dia
.236
(6.0)
.236
(5.1) Dia
.201
(4.0)
.157
(2.7)
.106
(2.8) Dia
.110 (5.4)
.213
(6.3)
.248 (13.1)
.516
(3.1)
.122
(2.54) Typ
.100
(0.8)
.031
(10.16)
.400
(0.4) Typ
.016
(0.6) Dia Typ
.024
C
L(2.54)
.100
(1.0)
.039
(8.8)
.346
(0.6) Typ
.024
COM
1
2
3
Slot
(6.0)
.236
(8.8)
.346
(6.0) Dia
.236
(5.1) Dia
.201
(4.0)
.157
(2.7)
.106
(2.8) Dia
.110 (5.4)
.213
(6.3)
.248
(13.1)
.516 (3.1)
.122
(2.54) Typ
.100
(0.8)
.031
(10.16)
.400
(0.4) Typ
.016
(0.6) Dia Typ
.024
COM
(8.8)
.346
(5.08)
.200
(0.6) Typ
.024
3
2
1
6
5
4
1
2
3
COM
(8.8)
.346
(0.6) Typ
.024
(2.54)
.100
3
1
2
5
6
4
(2.54) Typ
.100
(0.8) Dia Typ
.031
(5.08)
.200
(2.54) Typ
.100
C
L
2
3
1(2.54) Typ
.100
(0.8) Dia Typ
.031
Series BB
Process Sealed Subminiature Antistatic Pushbuttons
www.nkk.com C17
Indicators
AccessoriesSupplement Tactiles KeylocksRotaries
C
PushbuttonsIlluminated PBSlides Programmable Toggles
Rockers
Touch Tilt
TYPICAL SWITCH DIMENSIONS
Single Pole Right Angle PC
Single Pole Vertical PC
Double Pole BB16AH Right Angle PC
Double Pole BB16AV Vertical PC
Momentary BB15AH-FA
Momentary & Alternate Alternate BB25AH-FA
Momentary BB15AV-FA
Momentary & Alternate Alternate BB25AV-FA
COM
321
(7.3)
.287
(0.6) Dia Typ
.024
(2.54) Typ
.100
(8.8)
.346
(5.1) Dia
.201
(4.0)
.157
(2.7)
.106
(2.8) Dia
.110 Slot
(3.4)
.134
(3.1)
.122
(5.08)
.200
(0.4)
.016
(5.4)
.213
(6.3)
.248
(13.9)
.546
(5.08)
.200
(0.6) Typ
.024
(6.0) Dia
.236
(5.08)
.200
(0.8) Dia Typ
.031
231
(2.54) Typ
.100
(5.08)
.200
645
231
(2.54) Typ
.100
(0.8) Dia Typ
.031
(2.54)
.100
(5.08)
.200
231
(2.54) Typ
.100
(0.8) Dia Typ
.031
COM
32 1
645
(8.8)
.346
(2.54) Typ
.100
(0.6) Dia Typ
.024
(5.1) Dia
.201
(4.0)
.157
(2.8) Dia
.110 (0.4)
.016
(5.4)
.213
(6.3)
.248
(16.4)
.646
(5.08)
.200
(3.1)
.122
(0.5)
.020
(4.4)
.173
Slot
(2.54)
.100
(2.7)
.106
(5.08)
.200
(0.6) Typ
.024
(6.0) Dia
.236
(8.8)
.346
COM
32 1
(8.8)
.346
(2.54) Typ
.100
(0.6) Dia Typ
.024
COM
1
2
3
(8.8)
.346
C
L
(1.0)
.039
(0.6) Dia Typ
.024
(5.1) Dia
.201
(4.0)
.157
(2.7)
.106
(2.8) Dia
.110
(0.4)
.016
(5.4)
.213
(6.3)
.248
(18.9)
.746
(5.08)
.200 (2.54) Typ
.100
(1.0)
.039
(3.1)
.122
(0.5)
.020
(4.4)
.173
(6.0) Dia
.236
Slot
(8.0)
.315
(2.54)
.100
(0.6) Typ
.024
3
1
2
5
6
4(2.54) Typ
.100
(0.8) Dia Typ
.031
(5.08)
.200
(5.08)
.200
2
3
1
(2.54) Typ
.100
(2.54) Typ
.100
(5.08)
.200
C
L
(0.8) Dia Typ
.031
(0.6) Typ
.024
(6.0) Dia
.236
Slot
(8.8)
.346
(5.08)
.200
(5.1) Dia
.201
(4.0)
.157
(2.7)
.106
(2.8) Dia
.110
(0.4)
.016
(5.4)
.213
(6.3)
.248
(18.9)
.746
(5.08)
.200 (2.54) Typ
.100
(1.0)
.039
(3.1)
.122
(0.5)
.020
(4.4)
.173
(0.6) Dia Typ
.024
COM
3
2
1
6
5
4
(5.08)
.200
(8.8)
.346
3
2
1
(0.6) Dia Typ
.024
COM
(2.54)
.100
(8.8)
.346
3
1
2
(2.54) Typ
.100
(0.8) Dia Typ
.031
(1.0)
.039
C
L(2.54)
.100
(5.08)
.200
