ULTRA SMALL SUBMINIATURE BASICS BASIC
SWITCHES
B1
Specifications Subject To Change Without Notice www.ottoexcellence.com 3
BASICS
SINGLE BREAK, COMMERCIAL & MILITARY GRADES
ORDERING INFORMATION:
B1 Basic
Select the OTTO B1 basic switch to match your specific circuit and
mechanical requirements. To order, specify your requirement using
the OTTO Part Number Code shown below.
Example: B1-12111 specifies Military grade construction, double
turret terminals, 6 oz max operating force, default integer and gold
flash/silver contacts.
The B1 series basic switches are ultra-subminiature in size,
designed to reliably switch low level logic signals as well as up
to 2 amps switching capacity for a minimum of 25,000 cycles.
Mechanical life expectancy is in excess of 1 million cycles.
The molded housing is rugged and structurally stable. The
terminals are molded-in and sealed against solder flux entering
the switch. The terminals are available in a choice of double
turret solder style and 0.020” x 0.025” PC pins.
The B1 series is also available with integral lever actuators as
B1-5 series.
Features:
• Ultra-compact: only 0.300" w x 0.250" h x 0.100" thk
• 1 million cycle life
• Low level logic switching capability
• Designed to meet requirements of MIL-PRF-8805/94
• Available in Commercial & Military grades
• Choice of solder or PC molded-in terminals
• Precision operating points
Actual Size
Double Turret Terminals
Style Code 2 PC Pins Terminals
Style Code 3
Standard Characteristics/Ratings:
ELECTRICAL RATINGS:
Load Sea Level @ 28VDC or 115VAC, 60Hz 50,000 feet @ 28VDC
Resistive 2A 2A
Inductive* 0.5A 0.2A
DWV 1050Vrms 400Vrms
Low Level 30mV max and 10mA max 30mV and 10mA max
*L/R = 0.026
Electrical Life: 25,000 cycles
Mechanical Life: 1 million cycles
Seal: Unsealed
Operating Temp Range: -55°C to +125°C
Operating Force: 6 oz max
Release Force: 0.7 oz min
Operate Point: 0.220 +/- 0.015 inches from mounting holes
Overtravel: 0.003 inches min
Movement Differential: 0.002 inches nominal, 0.005 inches max
Pretravel: 0.015 inches max
MATERIALS:
Case: Thermoset, blue
Cover: Thermoplastic, blue
Button: Thermoplastic, black
Terminals: Brass, gold over nickel
Contacts: Stationary: Silver with gold plate
Moveable: Silver with gold plate
Terminal Hardware: None provided
Mounting Hardware: None provided
Construction
Grade
Terminal
Style
Operating
Force
Movement
Differential
Contact
Material
1. Military
2. Commercial
2. Double Turret
3. PC Pins
1. 6 oz max 1. 0.005” max 1. Silver/Gold – High Current
2. Silver/Gold – Low Current
B1 PART NUMBER CODE
B1 –X XXX X
