Model: MR250B

Non Wire Wound Variable Resistor

Special Features:

Radio set

Properties:

Section Quantity
1
Body Style
Cylindrical
Reliability Indicator
Not established
Body Diameter
0.781 inches
Shaft Diameter
0.250 inches
Shaft Length
1.250 inches
Body Length
0.469 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
248.0
End Application
An/src-42
Terminal Location
Radially positioned over less than half the circumference
Mounting Method
Tab
Electrical Resistance Per Section
250.000 ohms single section
Power Dissipation Rating Per Section In Watts
3.0 free air single section
Resistance Tolerance Per Section In Percent
-20.0 to 20.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
40.0 single section
Terminal Type And Quantity
3 tab, solder lug
NSN
5905-01-023-8573
Part Number
MR250B
Description
Resistor,variable,wire Wound,non
CAGE
76055

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 MR250B NSN 5905-01-023-8573

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:
D
ESD:
D
MMAC:
CRITL:
X

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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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