Model: 989C566H01

Code Indicating Wheel Switch

Properties:

Overall Length
0.480 inches
Overall Height
1.830 inches
Overall Width
1.610 inches
Unthreaded Mounting Hole Diameter
0.187 inches single mounting facility
Distance Between Mounting Facility Centers
1.385 inches single mounting facility
Individual Section Quantity
1
Mounting Method
Threaded hole single mounting facility
Actuator Type
Toggle single actuator
Contact Voltage Rating In Volts
28.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Switch Actuator Indexing Position Quantity
4 single actuator
Terminal Type
Printed circuit
Contact Load Current Rating
125.0 milliamperes resistive load ac at sea level
Readout Indicator Marking
0, 1, 2, 3 single section
Contact Arrangement Truth Table
Bcd complement only, 1 pole - 10 positions single section
Color
Black single body
Color
Black single indicator background
Color
White single indicator marking
Precious Material And Location
Printed circuit gold
Precious Material
Gold
Style Designator
Rectangular indicating
NSN
5930-01-337-2421
Part Number
989C566H01
Description
Switch,code Indicating Wheel
CAGE
18323

A switch which is externally actuated by a thumbwheel and/or pushbutton. A legend or message is visually displayed at each position of the indicating wheel which corresponds to electrically coded output. Electrically coded output is achieved by rotating a set of brush contacts permanently attached to the code indicating wheel, against a stationary commutator which is usually a printed wiring board having electrical pads or contacts which are interconnected by the rotating brush contacts. May have additional electrical components (such as resistors, capacitors, diodes) premounted on that portion of printed wiring board which extends beyond the back of switch housing.

Part 989C566H01 NSN 5930-01-337-2421

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
62415
FIIG:
A052B0
Concept No.:
1
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
G
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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