b3 basic switches basic switches Commercial & Military Grades, sub-subminiature double break, snap-action MIL-PRF-8805/76 (0.200 inches wide) 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 6 standard terminal styles or wire leads Available in Commercial & Military grades UL recognized & CSA certified Qualified under MIL-PRF-8805/76 & MIL-PRF-8805/101 RoHS/WEEE/Reach compliant 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 are available. Specifications Subject To Change Without Notice BASICS OTTO's B3-2XXXX 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 Solder Turret Terminals Right Angle PC Terminals Wire Wrap Terminals (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 2.5A Gold Contacts 3A 2A 3A Lamp 1A N/A 1A Motor 5A N/A DWV 1050Vrms 400Vrms *L/R = 0.026 Low Level: Gold contacts 10mA @ 30mV Electrical Life: 50,000 cycles at full load Mechanical Life: 1,000,000 cycles Seal:Unsealed Operating Temp Range: -65C to +125C Operating Force: 5 oz +3/-2 oz typical, 6 oz max, or 5 oz min options 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 with gold Contacts: Stationary: Silver with gold plate Moveable: Silver with gold plate Terminal Hardware: None provided Mounting Hardware: None provided www.ottoexcellence.com 10 b3 basic switches basic switches Commercial & Military Grades, sub-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 .125 .053.003 Wire Wrap Terminal Style 4 .502 .030 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. Example: B3-12141 is 0.156" wide, has 1/8" long turret terminals, 5 oz operating force, SPDT double break and silver/gold contacts (MILPRF-8805/101). SWITCH WIDTH .156 .200 90 3 .125 DIM. "A" .092 .070 "A" Solder Terminal Style 6 (.200) Available on the .092 0.200" model only. .115 B3 PART NUMBER CODE Bold Code items signify conformance to MIL-PRF-8805 specifications. B3 - X X X Model Terminal Style or Wire Length 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 1. 5 +3-2 oz 2. 5 oz min 2. Turret, 1/8" lg. 3. 6 oz max 3. Turret, 3/16" lg. 4. Wire Wrap 5. Right Angle PC Pins 6. Solder A. With Wires 06.0" lg. B. With Wires 12.0" lg. C. With Wires 18.0" lg. D. With Wires 24.0" lg. E. With Wires 30.0" lg. Available on 0.200" wide models only. 11 OTTO Full Line Catalog Operating Force X X Circuitry Contact Material 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 Auxiliary Lever Actuators for B3 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 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: OTTO: B3-11131 B3-11132 B3-11141 B3-11142 B3-12131 B3-12132 B3-12141 B3-12142 B3-13131 B3-13132 B313141 B3-10064 B3-10065 B3-41141 B3-11111 B3-11112 B3-11231 B3-11232 B3-11311 B3-11331 B3-11341 B3-12111 B3-12112 B3-12121 B3-12122 B3-12221 B3-12222 B3-12231 B3-12232 B3-12241 B3-12242 B312311 B3-12312 B3-12321 B3-12322 B3-12341 B3-12342 B3-13111 B3-13341 B3-13342 B3-14121 B3-14122 B3-14131 B3-14132 B3-14141 B3-14142 B3-14211 B3-14231 B3-14331 B3-14332 B3-14341 B3-14342 B315212 B3-15231 B3-15232 B3-15242 B3-15342 B3-21111 B3-21132 B3-21141 B3-21142 B3-21212 B3-21241 B3-21341 B3-22111 B3-22121 B3-22131 B3-22132 B3-22142 B3-22211 B3-22212 B3-22231 B3-22241 B322242 B3-22311 B3-22331 B3-22332 B3-22341 B3-22342 B3-24121 B3-24132 B3-24141 B3-24212 B3-24232 B3-25141 B3-25241 B3-25311 B3-26111 B3-26131 B3-26132 B3-26142 B3-26242 B3-2A241 B3-31111 B331131 B3-31132 B3-31141 B3-31142 B3-31212 B3-31242