B3 BASIC SWITCHES SUBMINIATURE BASIC SWITCHES DOUBLE BREAK, SNAP-ACTION, COMMERCIAL & MILITARY GRADES, SUBMINIATURE MIL-PRF-8805/76 (0.200 inches wide) OTTOs B3-2XXXX series is a subminiature switch that is qualified to 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 bounce and overall cycle life. For MIL-PRF-8805/76 requirements, B3-22141 has standard silver with gold contacts, SPDT double PC Pins break two circuit (Form Z), solder terminals in thermoset case material. Gold plated contacts are available for non-military Solder Turret Terminals applications. UL recognized and CSA certified models available. MIL-PRF-8805/101 (0.156 inches wide) For your really difficult projects, try OTTOS B3 series. They are Right Angle Wire Wrap qualified to the OTTO inspired MIL-PRF-8805/101 specification. PC Terminals Terminals 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. Standard Characteristics/Ratings: Examine the characteristics. With the MIL-PRF-8805/101, the only ELECTRICAL RATINGS: thing you give up is the extra space the MIL-PRF-8805/76 takes. Cycle life, very low contact resistance, minimal contact bounce... Circuitry Load Sea Level 70,000 feet Sea Level 28VDC 28VDC 115VAC, 60/400Hz* everything is exactly as provided by the MIL-PRF-8805/76 specification. SPST-NO or NC Resistive 8A 8A 8A Form Z 5A 5A 5A For MIL-PRF-8805/101 requirements, B3-11141 (PC pin) and Form C 5A 5A 5A B3-12141 (turret) have silver with gold contacts and SPDT Gold Contacts 5A 5A N/A double break (Form Z) contact. For commercial applications, a variety of contact forms, special forces and gold plate SPST-NO or NC Inductive** 5A 3A 5A contacts are available. Most versions are also UL recognized Form Z 3A 2A 3A and CSA certified. Form C 2.5A 1.5A 2.5A Gold Contacts 3A 2A 3A Great circuit versatility is available with either switch style. You *Applies to commercial grade switches have your choice of normally open (Form X) or closed (Form Y), **L/R = 0.026 3 terminal (Form C) and 4 terminal (Form Z) SPDT double break. Lamp 1A N/A 1A Motor 5A N/A Features: DWV 1000Vrms 400Vrms Low level switching capability Low Level: Gold contacts 10mA 30mV Electrical Life: 50,000 cycles at full load Less than 25m contact resistance Mechanical Life: 1,000,000 cycles Up to 8 amps switching capability Seal: Unsealed Button accepts actuation directly from a cam Operating Temp Range: -65C to +125C Operating Force: 5 oz +3/-2 oz typical, 6 oz max, or 5 oz min options Choice of 0.156 & 0.200 wide models Release Force: 1.5 oz min Choice of 6 standard terminal styles or wire leads Operate Point: 0.320 +/- 0.015 inches from mounting holes Available in Commercial & Military grades Overtravel: 0.004 inches min Qualified to MIL-PRF-8805/76 & MIL-PRF-8805/101 Movement Differential: 0.018 +/- 0.008 inches UL recognized & CSA certified MATERIALS: Case: Thermoset, blue RoHS/WEEE/Reach compliant Cover: Thermoplastic, blue Button: Thermoplastic, black APPLICATIONS Terminals: Brass with gold Contacts: Stationary: Silver with gold plate OTTO subminiature switches are designed to meet all Moveable: Silver with gold plate applications requiring MIL-PRF-8805/76 or MIL-PRF-8805/101 Terminal Hardware: None provided, optional wires switches. Basic switches are designed for miniature spaces Mounting Hardware: None provided where cam or other limit actuators are used. In addition, toggle, pushbutton and lever actuators are available. 14 OTTO Full Line Catalog Specifications Subject To Change Without NoticeBASIC SWITCHES B3 BASIC SUBMINIATURE BASIC SWITCHES SWITCHES DOUBLE BREAK, SNAP-ACTION, COMMERCIAL & MILITARY GRADES, SUBMINIATURE CONTACT CONFIGURATIONS: Basic Switch MlL-PRF-8805/76 and MlL-PRF-8805/101 specify single pole, double throw, double break shown with (Form Z) contact configuration. Available and included in the military specifications are Solder Turret SPNO and SPNC double break, (Form X and Y). The MlL-PRF-8805/101 also specifies Terminals SPDT Form C. Terminal Dim. A Style Length MILITARY APPROVALS 2 0.125 (MlL-PRF-8805/76 & MlL-PRF-8805/101) 3 0.187 Certain OTTO B3 models have been qualified to the military specification 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 Printed Circuit Pin MS27257-2 B3-22141 M8805/101-012 B3-15142 Terminal .125 M8805/101-001 B3-10064 M8805/101-013 B3-13141 Style 1 M8805/101-002 B3-10065 M8805/101-014 B3-13142 .053.003 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 Wire Wrap Terminal M8805/101-007 B3-11141 M8805/101-019 B3-15131 .502 Style 4 M8805/101-008 B3-11142 M8805/101-020 B3-15132 M8805/101-009 B3-12141 M8805/101-021 B3-13131 .030 M8805/101-010 B3-12142 M8805/101-022 B3-13132 Right Angle Printed Circuit 90 3 ORDERING INFORMATION: Terminal Style 5 .125 B3 Basic SWITCH WIDTH DIM. Select the OTTO B3 basic switch to match your specific circuit and .156 .092 mechanical requirements. To order, specify your requirement using .200 .070 the OTTO Part Number Code shown below. Solder (.200) Example: B3-12141 is 0.156 wide, has 1/8 long turret terminals, 5 oz Terminal operating force, SPDT double break and silver/gold contacts (MIL- Style 6 PRF-8805/101). Available on the .092 0.200 model only115 B3 PART NUMBER CODE Bold Code items signify conformance to MIL-PRF-8805 specifications. Auxiliary Lever Actuators for B3 B3 X X X X X Model Terminal Style Operating Circuitry Contact or Wire Length Force Material +3 1. 0.156 (MIL Grade) 1. PC Pins 1. 5 oz 1. SPNO-DB, Form X 1. Silver/Gold -2 2. 0.200 (MIL Grade) 2. Turret, 1/8 lg. 2. 5 oz min 2. SPNC-DB, Form Y High Current 3. 0.156 (Coml Grade) 3. Turret, 3/16 lg. 3. 6 oz max 3. SPDT, Form C 2. Silver/Gold 4. 0.200 (Coml Grade) 4. Wire Wrap 4. SPDT-DB, Form Z Low Current 5. Right Angle Catalog Number PC Pins Number of Poles 6. Solder A1-101-02 1 A. With Wires 06.0 lg. B. With Wires 12.0 lg. A3-102 2 C. With Wires 18.0 lg. D. With Wires 24.0 lg. Supplied with two 2-56 panhead screws, E. With Wires 30.0 lg. hex nuts and lockwashers. For additional options, contact factory. Available on 0.200 wide models only. Specifications Subject To Change Without Notice www.ottoexcellence.com 15