BASIC SWITCHES BASIC
SWITCHES
B2
BASICS
SINGLE BREAK, COMMERCIAL & MILITARY GRADES, TWO WIDTHS
Available in two widths, the B2 series can be specified to fit
your application exactly.
In addition to being available with integral actuating levers as
in the B2-5 series, the B2 series is also available with the A1
series auxiliary lever actuators as shown in the B3 section.
While the B2 series conforms to and is qualified to various
military specifications, the same switch can be specified
for commercial use at a cost savings.
A choice of turret, quick connect and three lengths of printed
circuit board style terminals are available for both the 0.156”
and 0.200” wide models.
Whether it be military or commercial applications, OTTO can
provide features you select for your application. You can specify
the features you require without paying for ones you don’t need.
The OTTO B2 sub-subminiature switches conform to and are
qualified under MIL-PRF-8805/4, MIL-PRF-8805/106 (high
temp -55°C to +205°C) and MIL-PRF-8805/109. Basic switches
are designed for miniature spaces where cam or other limit
actuators are used on the button. In addition, a full range of
toggle, pushbutton and lever actuators are available.
Features:
• Choice of 0.156” & 0.200” wide models
• Up to 7 amps switching
• Sensitive movement differentials
• Low operating forces
• Choice of 8 terminal styles or wire leads
• Long operating life
• Qualified under MIL-PRF-8805/4, MIL-PRF-8805/106
& MIL-PRF-8805/109
• UL recognized & CSA certified
• RoHS/WEEE/Reach compliant
CUS
®
Solder Turret
Double Turret
PC Terminals
Right Angle
Quick Connect
ELECTRICAL RATINGS:
High Level Switch Ratings
Load Rating – Sea Level Rating – 50,000 feet
115/250VAC, 60Hz silver contacts with gold plate
Resistive 7A N/A
Inductive 7A N/A
Lamp 2A N/A
28VDC, silver contacts with gold plate
Resistive 7A 4A
Inductive 4A 2.5A
Lamp 2.5A 2.5A
Low Level Switch Ratings
28VDC, gold plate contacts
Resistive 1A 1A
Inductive 0.5A 0.5A
Lamp N/A N/A
DWV: 1050Vrms 400Vrms
Electrical Life: Up to 50,000 cycles
Mechanical Life: Up to 250,000 cycles
Seal: Unsealed
Operating Temp Range: -55°C to +85°C, high temp rating -55°C to +205°C
Operating Force: 5 oz or 6 oz
Release Force: 1 oz min
Operate Point: 0.320 +/- 0.015 inches from mounting holes
Overtravel: 0.004 inches min
Movement Differential: 0.006 inches max
Pretravel: 0.020 inches max
MATERIALS:
Case: Thermoset, blue
Cover: Thermoplastic, blue
Button: Thermoplastic, black
Terminals: Brass, gold over nickel
Contacts: Stationary: Silver with gold
Moveable: Silver or gold
Terminal Hardware: None provided
Optional Wires: 24 AWG blue, red, yellow
Mounting Hardware: None provided
Standard Characteristics/Ratings:
Specifications Subject To Change Without Notice www.ottoexcellence.com 4
BASIC SWITCHES
BASIC
SWITCHES
B2
5 OTTO Full Line Catalog Specifications Subject To Change Without Notice
SINGLE BREAK, COMMERCIAL & MILITARY GRADES, TWO WIDTHS
MILITARY APPROVALS
(MIL-PRF-8805/4, MIL-PRF-8805/106 & MIL-PRF-8805/109)
Certain OTTO B2 models have been qualified to the military
specification for these parts. The following is the latest listing.
MILITARY NO. OTTO P/N
M8805/106-01 B2-200031
M8805/106-02 B2-200032
M8805/109-01 B2-111351
M8805/109-02 B2-112351
M8805/109-03 B2-111353
M8805/109-04 B2-112353
MS24547-1 (M8805/4) B2-211351
MS24547-2 (M8805/4) B2-211353
MS24547-4 (M8805/4) B2-212351
MS24547-5 (M8805/4) B2-212353
MS24547-6 (M8805/4) B2-200029
MS24547-7 (M8805/4) B2-200030
ORDERING INFORMATION:
Select the OTTO B2 basic switch to match your specific circuit
and mechanical requirements. To order, specify your requirement
using the OTTO Part Number Code shown to the right.
Example: B2-112351 specifies Military grade construction on a
0.156” wide base, double turret terminals, 5 oz operating force,
0.005”movement differential and silver/gold high current contacts.
Model
(Width/Constr.)
Actuator
Style
Terminal
Style
Operating
Force
Movement
Differential
Contact
Material
1. 0.156” (MIL Grade)
2. 0.200” (MIL Grade)
3. 0.156” (Com’l Grade)
4. 0.200” (Com’l Grade)
1. Button 1. Single Turret
2. Double Turret
3. Q.C. Tab ➀
4. PC Pin 0.150” lg.
5. PC Pin 0.270” lg.
6. PC Pin 0.090” lg.
7. Right Angle PC
9. Right Angle,
Opposite of 7
3. 5 oz max
4. 6 oz max
2. 0.002”
3. 0.003”
4. 0.004”
5. 0.005”
6. 0.006”
1. Silver/Gold –
High Current
3. Silver/Gold –
Low Current
➀ Mates with AMP 0.058” receptacles.
B2 PART NUMBER CODE
Bold Code numbers signify standard features with best availability.
B2 – X X X X X X
A. With 24 AWG Wires 06.0" lg.
B. With 24 AWG Wires 12.0" lg.
C. With 24 AWG Wires 18.0" lg.
D. With 24 AWG Wires 24.0" lg.
E. With 24 AWG Wires 30.0" lg.
.180
.090
.040
.060
.255
.165
.040
.060
.245
.155
.058
.035
.150 .240
.270 .360
.035
"X"
.125±.030
"Y"
.090 .180
.035
"A" +.020
-.010
.090+.020
+.010
"A" +.020
-.010
.090+.020
-.010
.035
.035
.180+.020
-.010
.180+.020
-.010
(.250)
WIRE LENGTH
CODE DIM. "X"DIM. "Y"
A 06.00 .38 06.09 .38
B 12.00 .50 12.09 .50
C 18.00 .50 18.09 .50
D 24.00 .50 24.09 .50
E 30.00 .75 30.09 .75
SWITCH WIDTHDIM. "A"
.156 .110
.200 .085
SWITCH WIDTHDIM. "A"
.156 .110
.200 .085
TERMINAL STYLE 1
SINGLE SOLDER TURRET
TERMINAL STYLE 2
DOUBLE SOLDER TURRET
TERMINAL STYLE 3
QUICK CONNECT
MATES WITH AMP .058” RECEPTACLES
TERMINAL STYLE 4
PRINTED CIRCUIT PIN 0.150" LONG
TERMINAL STYLE 5
PRINTED CIRCUIT PIN 0.270" LONG
TERMINAL STYLE 6
PRINTED CIRCUIT PIN 0.090" LONG
TERMINAL STYLE 7
RIGHT ANGLE PRINTED CIRCUIT PIN
TERMINAL STYLE 9
RIGHT ANGLE, OPPOSITE OF 7
NC 24 AWG BLUE
NO 24 AWG RED
C 24 AWG YELLOW
(OVAL HOLE)
(OVAL HOLE)
BASIC SWITCHES BASIC
SWITCHES
B2
Specifications Subject To Change Without Notice www.ottoexcellence.com 6
BASICS
SINGLE BREAK, COMMERCIAL & MILITARY GRADES, TWO WIDTHS
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
OTTO:
B2-500511 B2-111351 B2-111353 B2-112351 B2-112353 B2-200029 B2-200030 B2-200031 B2-200032 B2-
211351 B2-211353 B2-212351 B2-212353 B2-21A321 B2-21A323 B2-11A351 B2-11A353 B2-21A351 B2-
21A353 B2-111321 B2-111323 B2-111451 B2-111453 B2-111463 B2-112451 B2-113351 B2-113353 B2-113463
B2-114321 B2-114333 B2-114351 B2-114353 B2-114453 B2-114461 B2-115351 B2-115353 B2-116351 B2-
116353 B2-117351 B2-117353 B2-117453 B2-119353 B2-211333 B2-211341 B2-211343 B2-211451 B2-211461
B2-212341 B2-212343 B2-212461 B2-213351 B2-213353 B2-214331 B2-214351 B2-214353 B2-215321 B2-
215331 B2-215333 B2-215351 B2-215353 B2-216321 B2-216351 B2-216353 B2-217351 B2-217353 B2-219351
B2-219353 B2-411321 B2-411323 B2-411333 B2-411351 B2-411353 B2-411431 B2-411451 B2-411453 B2-
412321 B2-412341 B2-412351 B2-412353 B2-412421 B2-412451 B2-412453 B2-413323 B2-413351 B2-413353
B2-414351 B2-414353 B2-414451 B2-415351 B2-415353 B2-417341 B2-417351 B2-417353 B2-417431 B2-
419351 B2-419353 B2-500141 B2-500143 B2-500171 B2-500191
