MIL1303B03NSD25

Actuator Type:	Round (4mm Dia)
Operating Force:	6.118gfm
Panel Cutout Dimensions:	--
Depth Behind Panel:	17.78mm
Features:	Sealed - Fully
Termination Style:	PC Pin
Mounting Type:	Through Hole, Right Angle
Contact Finish:	Gold
Contact Material:	Brass
Angle of Throw:	30°
Actuator Length:	25.00mm
Series:	MIL
Voltage Rating - DC:	50V
Voltage Rating - AC:	50V
Current Rating:	20mA (AC/DC)
Contact Timing:	Non-Shorting (BBM)
Circuit per Deck:	3P3T
Number of Poles per Deck:	3
Number of Decks:	1
Index Stops:	Fixed
Number of Positions:	3
Part Status:	Obsolete

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Introduction

Rotary switches are a type of switch composed of two components separated by a mechanical barrier. The first component consists of multiple contacts in various configurations, while the second is a rotating cylinder with an array of latching pins that engage into the pathways created by the first component. When the rotary switch is actuated, the latching pins turn, allowing electrical currents to pass through the contacts. MIL1303B03NSD25 is a model of rotary switch commonly used in a range of applications.

Structure and Working Principle

MIL1303B03NSD25 is a 2-pole, 2-throw rotary switch with a 0.375" diameter shaft, 6-position detent, and 3 pins per position. The cylindrical body of the switch is constructed from thermoplastic and is designed to withstand temperatures ranging from -45°C to +85°C. It is also equipped with solder terminals and has a rate of power of 5A/250VAC. The rotary switch is actuated when the shaft rotates. As the shaft turns, the latching pins engage into the pathways created by the contacts. This allows electrical currents to pass through the contacts which, in turn, switch the circuit ‘on’ or ‘off’.

Applications

MIL1303B03NSD25 is a versatile, low-cost solution and is most commonly used in a variety of automation and control systems. In industrial settings, it can be used to control machine functions, such as pump speeds and temperature settings. In transportation, it can be used to switch the power supply to different parts of the vehicle. In medical devices, it is often used to control the power supply of a patient’s pacemaker or other medical machine. It can also be used in consumer electronics, such as TVs, DVD players, and stereos.

Conclusion

MIL1303B03NSD25 is a versatile, low-cost rotary switch. Its small size and low profile make it ideal for applications that require small, discrete parts. The switch is actuated with a simple rotation of the shaft and uses latching pins to engage into the pathways it creates. This allows electrical currents to pass through the contacts and ‘on’ or ‘off’ the circuit. MIL1303B03NSD25 can be used in a variety of industrial, consumer, medical, and transportation applications.

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