Model: SMC748839-2

Pre Wire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Cylindrical bushing mounted
Reliability Indicator
Not established
Body Diameter
0.875 inches
Shaft Diameter
Between 0.2487 inches and 0.2947 inches
Shaft Length
0.500 inches
Mounting Bushing Length
0.313 inches
Body Length
Between 0.980 inches and 1.020 inches
Shaft Style
Round, slotted
Shaft Bearing Type
Sleeve
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
Between 3600.0 and 3610.0
Maximum Starting Torque
0.60 inch-ounces
Maximum Running Torque
0.60 inch-ounces
Maximum Stop Torque
96.00 inch-ounces
Shaft End Play
0.005 inches
Shaft Runout
0.002 inches
Lateral Runout
0.005 inches
Pilot Diameter Runout
0.002 inches
Shaft Radial Play
0.003 inches
Mechanical Backlash In Deg Angular Rotation
1.0
Fragility Factor
Moderately rugged
Screw Thread Diameter
0.375 inches
Screw Thread Series Designator
Unef
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Standard bushing
Features Provided
Humidity proof
Cubic Measure
0.613 cubic inches
Electrical Resistance Per Section
1.0 kilohms single section
Rotary Actuator Travel In Angular Deg
Between 3600.0 and 3610.0
Function Conformity Tolerance Per Section
-0.20/+0.20 single section
Function Conformity Tolerance Per Section
-0.20 to 0.20 single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-20.0/+20.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-20.0 to 20.0 single section
Power Dissipation Rating Per Section In Watts
2.0 free air single section
Function Conformity Per Section
Single section independent linearity
Resistance Tolerance Per Section In Percent
-3.0/+3.0 single section
Actuator Travel Control Feature
Stops
Function Characteristic Per Section
Single section linear
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 single section
Test Data Document
80063-smc748839 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Terminal Type And Quantity
3 tab, solder lug
NSN
5905-00-140-0948
Part Number
SMC748839-2
Description
Resistor,variable,wire Wound,pre
CAGE
80063

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 SMC748839-2 NSN 5905-00-140-0948

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:
A
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:
77.5
WCC:
658
TCC:
Z
SHC:
2
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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