Model: 28W8-2046

Pre Wire Wound Variable Resistor

Special Features:

3 switch sections

Properties:

Section Quantity
5
Body Style
Cylindrical servo mounted
Reliability Indicator
Not established
Pilot Diameter
Between 0.4950 inches and 0.5050 inches
Pilot Length
0.1250 inches
Overall Length
5.344 inches
Undercut Diameter
1.750 inches
Undercut Width
0.0730 inches
Body Diameter
1.755 inches
Angle Of Mounting Hole In Deg
90.0
Angle Between Centerlines Of Mounting Holes In Deg
120.0
Shaft Diameter
0.250 inches
Shaft Length
Between 0.109 inches and 0.141 inches
Body Length
4.219 inches
Overall Diameter
2.002 inches
Mounting Lip Diameter
2.0620 inches
Mounting Lip Depth
0.0930 inches
Mounting Hole/stud Circle Diameter
Between 0.870 inches and 0.880 inches
Shaft Style
Round, slotted
Shaft Bearing Type
Ball
Switch Type
Rotary
Switch Voltage Rating In Volts
35.0 and 250.0 and 250.0
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
350.0
Maximum Starting Torque
6.50 inch-ounces
Maximum Running Torque
4.00 inch-ounces
Shaft Runout
0.001 inches
Switch Operating Position
Start of linear movement
Switch Contact Arrangement
Single pole, single throw, normally open, both positions maintained
Screw Thread Diameter
0.138 inches
Screw Thread Series Designator
Unc
Screw Thready Qty Per Inch (tpi)
32.0
Mounting Facility Quantity
4
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Threaded hole
Features Provided
Switch
Electrical Resistance Per Section
4.000 percent, rated amperes c and better v.G. Stepping
Electrical Resistance Per Section
4.000 percent, rated amperes c drop siding
Electrical Resistance Per Section
50.000 percent, rated amperes c and better finish
Electrical Resistance Per Section
80.000 percent, rated amperes c and better industrial clears
Electrical Resistance Per Section
80.000 percent, rated amperes c and better select
Tap Location From Ccw Terminal Per Section In Deg Of Effective Electrical Rotation
175.0 all sections
Rotary Actuator Travel In Angular Deg
360.0
Function Conformity Tolerance Per Section
-0.30/+0.30 all sections
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-20.0/+20.0 all sections
Power Dissipation Rating Per Section In Watts
2.0 free air all sections
Function Conformity Per Section
All sections terminal base linearity
Fixed Tap Quantity Per Section
1 1st section
Fixed Tap Quantity Per Section
1 2nd section
Fixed Tap Quantity Per Section
1 3rd section
Fixed Tap Quantity Per Section
1 4th section
Fixed Tap Quantity Per Section
1 5th section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 all sections
Actuator Travel Control Feature
Continuous motion
Tap Location From Ccw Terminal Per Section In Ohms
2000.0 4th section
Tap Location From Ccw Terminal Per Section In Ohms
2000.0 5th section
Tap Location From Ccw Terminal Per Section In Ohms
25000.0 1st section
Tap Location From Ccw Terminal Per Section In Ohms
40000.0 2nd section
Tap Location From Ccw Terminal Per Section In Ohms
40000.0 3rd section
Function Characteristic Per Section
All sections linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 all sections
Switch Current Type And Rating In Amps
0.500 dc and 0.001 dc and 0.010 dc
Terminal Type And Quantity
26 tab, solder lug
NSN
5905-00-755-0828
Part Number
28W8-2046
Description
Resistor,variable,wire Wound,pre
CAGE
19176

A resistor in which a sliding or rolling contact moves over an exposed area of the resistive element to change the ohmic value of the output. The functional tolerance (linearity) of the output is equal to or less than plus or munus 1 percent on linear outputs. Specified outputs such as sine, cosine, tangent, etc., shall be considered to be precision. For items having manually positioned taps designed to be set and fixed prior to use, see resistor, adjustable, for items with step by step variation, see rheostat and resistor, step by step. For tandem-mounted items designed to function together as an attenuator (and rated accordingly), see attenuator, variable. Excludes resistor (1), variable, nonwire wound, nonprecision; resistor (1), variable, nonwire wound, precision; and resistor (1), variable, wire wound, nonprecision.

Part 28W8-2046 NSN 5905-00-755-0828

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37408
FIIG:
A002A0
Concept No.:
1
App. Key:
D
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:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533390080
  • SITC: 77233
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Wirewound variable resistors, nesoi

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