2100-3975

21003975 Nonwire Wound Variable Resistor
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Datasheet. 2100-3975 specification

Section Quantity
The number of individual elements.

1

Body Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

cylindrical bushing mounted

Reliability Indicator
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.

not established

Body Diameter
The length of a straight line which passes through the center of the body,and terminates at the circumference.

0.875in.

Shaft Diameter
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.

0.250in.

Shaft Length
A measurement of the longest dimension of the shaft,in distinction from width.

0.7874in.

Mounting Bushing Length

0.374in.

Body Length
A measurement of the longest dimension of the body,in distinction from width.

0.750in.

Shaft Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the shaft.

round, slotted

Switch Type
Indicates the type of switch included in the item.

rotary

Switch Voltage Rating In Volts
The voltage for which the switch is rated for normal operation,expressed in volts.

250.0

Actuator Type
Indicates the type of facility or arrangement provided for moving the variable contact(s).

single shaft

Effective Electrical Rotation In Deg Angular Rotation
That part of the total rotational travel of the actuator that produces a change in output,expressed in degree angular rotation.

300.0

Switch Operating Position
The definitive positional point at which the switch operates /starting with the actuator in extreme counterclockwise position and moving clockwise for rotary actuated resistors;starting with actuator full retracted /pushed in/ for longitudinally actuated resistors/.

start of rotation

Switch Contact Arrangement
A designation that describes the basic electrical configuration of a switch.

double pole, single throw, normally open

Fragility Factor
The measure of sensitivity of the item to be packaged. a factor used by packaging engineers in devising proper cushioning in a package.

moderately rugged

Screw Thread Diameter
The length of a straight line which passes through the center of a coaxial cylinder which would bound the crest of an external thread or the root of an internal thread.

0.375in.

Screw Thread Series Designator
A designation distinguishing one group of screw thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unef

Screw Thread Quantity Per Inch
The number of screw threads on the item per linear inch measured on a line parallel to the thread axis,including incomplete threads.

32.0

Terminal Location
The position of the terminal/s/ for making connection to an item.

radially positioned over less than half the circumference

Mounting Method
The means of attaching the item.

standard bushing

Features Provided
Those features,not otherwise specified,which may be required for proper functioning of the item.

switch

Electrical Resistance Per Section
A measure of the opposition to the flow of direct or alternating current per section.

5.0 kilohms single section

Rotary Actuator Travel In Angular Deg
The measurement of the rotary mechanical motion of the actuating shaft of an item,expressed in degrees.

300.0

Ambient Temp In Deg Celsius Per Section At Zero Percent Rated Power
The ambient temperature at which the power dissipation of each section is derated to zero percent of the full rated power.

120.0 single section

Power Dissipation Rating Per Section In Watts
The maximum amount of electrical energy that can be expended per section,expressed in watts.

0.5 free air single section

Resistance Tolerance Per Section In Percent
The limits of permissible variation in the electrical resistance value per section of an item from its rated value,expressed in percent.

-20.0/+20.0 single section

Actuator Travel Control Feature
The feature that controls the actuator travel.

stops

Ambient Temp In Deg Celsius Per Section At Full Rated Power
The ambient temperature,expressed in degrees celsius,of the medium surrounding each section at which it can be operated continuously at full rated power.

40.0 single section

Switch Current Type And Rating In Amps
Indicates the type of electrical current and the capacity for normal operation of the switch,expressed in amperes.

1.000 dc

Standard Taper Curve Per Section
The rate of change and distribution of resistance per section,in relation to the rotation of the control shaft,which establishes a standard taper curve designated by an alphabetic character and accepted for common usage.

a single section

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

7 tab, solder lug

Answers.

What is the NSN for 2100-3975?

5905-01-289-4168

How is this classified for shipping?

Schedule B number: 8533400080
Variable resistors, including potentiometers

What's the federal classification of 2100-3975?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-01-289-4168 RESISTOR,VARIABLE,NONWIRE WOUND,

NIIN
012894168
NIIN Date
11/22/88
Schedule B
8533400080 
Name Code
37405
FIIG
A002A0
Item Weight
0.000lbs
Item Dimensions
--
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

Major End Users Countries and entities

  • - France 
  • - Republic of Korea 

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Similar by Design Other resistors with similar characteristics

Nothing similar to this part number was found in our inventory

2100-3975 / Resistor,variable,nonwire wound,What is the formal definition of this item?

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 or 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, wire wound, nonprecision; resistor (1), variable, nonwire wound precision; and resistor (1), variable, wire wound, precision.