Model: 381-1721-020

Non Wire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular w/mounting holes
Reliability Indicator
Not established
Overall Length
Between 0.515 inches and 0.555 inches
Terminal Length
0.172 inches
Overall Height
Between 0.490 inches and 0.510 inches
Overall Width
0.372 inches
Shaft Diameter
Between 0.058 inches and 0.098 inches
Shaft Length
Between 0.025 inches and 0.045 inches
Body Length
Between 0.490 inches and 0.510 inches
Body Width
Between 0.200 inches and 0.270 inches
Body Height
Between 0.490 inches and 0.510 inches
Shaft Style
Round, slotted
Contact Arm Electrical Off Position
Fully ccw
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
Between 7200.0 and 16200.0
Maximum Starting Torque
5.00 inch-ounces
Center To Center Distance Between Terminals
Between 0.195 inches and 0.205 inches
Terminal Location
Left adjacent side single row
Mounting Method
Terminal
Electrical Resistance Per Section
200.0 ohms single section
Rotary Actuator Travel In Angular Deg
Between 7200.0 and 16200.0
Center To Center Distance Between Center Terminal And Outside Terminal
Between 0.095 inches and 0.105 inches
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
150.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0/+50.0 single section
Power Dissipation Rating Per Section In Watts
0.75 free air single section
Resistance Tolerance Per Section In Percent
-5.0/+5.0 single section
Actuator Travel Control Feature
Stops
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
85.0 single section
Standard Taper Curve Per Section
A single section
Test Data Document
81349-mil-r-27208 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Terminal Type And Quantity
3 pin
Specification Data
81349-mil-r-27208/4 government specification
NSN
5905-00-990-5398
Part Number
381-1721-020
Description
Resistor,variable,wire Wound,non
CAGE
95105

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), if given, of the output is greater than plus of minus 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, precision.

Part 381-1721-020 NSN 5905-00-990-5398

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37406
FIIG:
A002A0
Concept No.:
1
App. Key:
A
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062960
UFC:
35140
LTL:
77.5
LCL:
--
WCC:
658
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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