B3 BASIC SWITCHES BASIC SWITCHES COMMERCIAL & MILITARY GRADES, SUBMINIATURE DOUBLE BREAK, SNAP-ACTION MIL-PRF-8805/76 (0.200 inches wide) OTTO's B3-22000 series is a sub-subminiature switch that meets all requirements of MIL-PRF-8805/76. Designed to switch at least one million mechanical cycles, the B3 surpasses the requirements of the military in these categories: contact resistance less than 25m, contact pressure, contact bounce and overall cycle life. For MIL-PRF-8805/76 requirements, B3-22141 has standard silver with gold contacts, SPDT double break two circuit (Form Z), solder terminals in thermoset case material. Gold plate contacts are available for non-military applications. UL recognized and CSA certified models available. PC Pins Wire Wrap Terminals Solder Turret Terminals Right Angle PC Terminals MIL-PRF-8805/101 (0.156 inches wide) For your really difficult projects, try OTTO'S B3 series. They meet the OTTO inspired MIL-PRF-8805/101 specification. Only 0.156" thick, think of all those extra 0.044" you can use in those tight ganged jobs. With the B3 series, you can get an extra pole in where only four MIL-PRF-8805/76s fit, with room to spare. Examine the characteristics. With the MIL-PRF-8805/101, the only thing you give up is the extra space the MIL-PRF-8805/76 takes. Cycle life, very low contact resistance, higher than normal contact pressures, minimal contact bounce...everything is exactly as provided by the MIL-PRF-8805/76 specification. For MIL-PRF-8805/101 requirements, B3-11141 (PC pin) and B3-12141 (turret) have silver with gold contacts and SPDT double break (Form Z) contact. For commercial applications, a variety of contact forms, special forces and gold plate contacts are available. Most versions are also UL recognized and CSA certified. Great circuit versatility is available with either switch style. You have your choice of normally open (Form X) or closed (Form Y), 3 terminal (Form C) and 4 terminal (Form Z) SPDT double break. Features: * * * * * * * * * Low level switching capability Less than 25m contact resistance Up to 8 amps switching capability Button accepts actuation directly from a cam Choice of 0.156" & 0.200" wide models Choice of six standard terminal styles Available in Commercial & Military grades UL recognized & CSA certified Qualified under MIL-PRF-8805/76 & MIL-PRF-8805/101 APPLICATIONS OTTO sub-subminiature switches are designed to meet all applications requiring MIL-PRF-8805/76 or MIL-PRF-8805/101 switches. Basic switches are designed for miniature spaces where cam or other limit actuators are used. In addition, toggle, pushbutton and lever actuators can be provided. 8 OTTO Full Line Catalog (R) Standard Characteristics/Ratings: ELECTRICAL RATINGS: Circuitry Load Sea Level @ 28VDC 70,000 feet @ 28VDC Sea Level @ 115VAC, 60/400Hz SPST-NO or NC Resistive 8A 8A 8A Form Z 5A 5A 5A Form C 5A 5A 5A Gold Contacts 5A 5A N/A SPST-NO or NC Inductive* 5A 3A 5A Form Z 3A 2A 3A Form C 2.5A 1.5A 3A Gold Contacts 3A 2A N/A Double Break Lamp 1A N/A 1A 2 Circuit N/A N/A 1A Lamp 1A N/A 1A Motor 5A N/A 1050Vrms 400Vrms *L/R = 0.026 DWV Low Level: Gold contacts 10mA @ 30mV Electrical Life: 50,000 cycles at full load Mechanical Life: 1 million cycles Seal: Unsealed Operating Temp Range: -65C to +125C Operating Force: 5 oz +3/-2 oz typical to 6 oz max Release Force: 1.5 oz min Operate Point: 0.320 +/- 0.015 inches from mounting holes Overtravel: 0.004 inches min Movement Differential: 0.018 +/- 0.008 inches 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 Specifications Subject To Change Without Notice BASIC SWITCHES B3 BASIC SWITCHES COMMERCIAL & MILITARY GRADES, SUBMINIATURE DOUBLE BREAK, SNAP-ACTION CONTACT CONFIGURATIONS: MlL-PRF-8805/76 and MlL-PRF-8805/101 specify single pole, double throw, double break (Form Z) contact configuration. Available and included in the military specifications are SPNO and SPNC double break, (Form X and Y). The MlL-PRF-8805/101 also specifies SPDT Form C. MILITARY APPROVALS (MlL-PRF-8805/76 & MlL-PRF-8805/101) Certain OTTO B3 models have been qualified to the military specifications for these parts. The following is a partial listing. Consult the Cross Reference that appears at the back of this catalog for the latest, complete listings. MILITARY NO. OTTO P/N MILITARY NO. OTTO P/N MS27257-1 B3-26141 M8805/101-011 B3-15141 MS27257-2 B3-22141 M8805/101-012 B3-15142 M8805/101-001 B3-10064 M8805/101-013 B3-13141 M8805/101-002 B3-10065 M8805/101-014 B3-13142 M8805/101-003 B3-10066 M8805/101-015 B3-11131 M8805/101-004 B3-10067 M8805/101-016 B3-11132 M8805/101-005 B3-10063 M8805/101-017 B3-12131 M8805/101-006 B3-10072 M8805/101-018 B3-12132 M8805/101-007 B3-11141 M8805/101-019 B3-15131 M8805/101-008 B3-11142 M8805/101-020 B3-15132 M8805/101-009 B3-12141 M8805/101-021 B3-13131 M8805/101-010 B3-12142 M8805/101-022 B3-13132 Basic Switch shown with Solder Turret Terminals Terminal Style Dim. "A" Length 2 3 0.125" 0.187" Printed Circuit Pin Terminal Style 1 Wire Wrap Terminal Style 4 Right Angle Printed Circuit Terminal Style 5 ORDERING INFORMATION: B3 Basic Select the OTTO B3 basic switch to match your specific circuit and mechanical requirements. To order, specify your requirement using the OTTO Part Number Code shown below. Solder Terminal Style 6 BASICS Example: B3-12141 is 0.156" wide, has 1/8" long turret terminals, 5 oz operating force, SPDT double break and gold contacts (MIL-PRF8805/101). Available on the 0.200" model only. B3 PART NUMBER CODE Bold Code items signify conformance to MIL-S-8805 specifications. B3 - X X X X Auxiliary Lever Actuators for B3 X Model Terminal Style Operating Force Circuitry 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. PC Pins 2. Turret, 1/8" lg. 3. Turret, 3/16" lg. 4. Wire Wrap 5. Right Angle PC Pins 6. Solder 1. 5 +3-2 oz 2. 5 oz min 3. 6 oz max 1. SPNO-DB, Form X 2. SPNC-DB, Form Y 3. SPDT, Form C 4. SPDT-DB, Form Z 1. Silver/Gold - High Current 2. Silver/Gold - Low Current Available on 0.200" wide models only. Catalog Number Number of Poles A1-101-02 1 A3-102 2 Supplied with two 2-56 panhead screws, hex nuts and lockwashers. Specifications Subject To Change Without Notice www.ottoexcellence.com 9