Model: 78PR20K

Nonwire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular w/mounting holes/slots
Reliability Indicator
Not established
Overall Length
Between 1.300 inches and 1.340 inches
Terminal Length
Between 0.469 inches and 0.531 inches
Overall Height
Between 0.779 inches and 0.861 inches
Overall Width
0.195 inches
Mounting Hole Diameter
0.093 inches
Shaft Diameter
0.110 inches
Shaft Length
Between 0.060 inches and 0.080 inches
Body Length
Between 1.240 inches and 1.260 inches
Body Width
0.195 inches
Body Height
Between 0.310 inches and 0.330 inches
Shaft Style
Round, slotted
Actuator Type
Flush drive with slot-hole
Center To Center Distance Between Terminals
Between 0.690 inches and 0.710 inches
Lateral Distance Between Mounting Hole Centers
1.000 inches
Mounting Facility Quantity
2
Terminal Location
Lower adjacent side single row
Mounting Method
Unthreaded hole
Electrical Resistance Per Section
20.000 kilohms single section
Center To Center Distance Between Center Terminal And Outside Terminal
Between 0.290 inches and 0.310 inches
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Power Dissipation Rating Per Section In Watts
0.075 free air single section
Resistance Tolerance Per Section In Percent
-20.0/+20.0 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
70.0 single section
Terminal Type And Quantity
3 pin
NSN
5905-00-105-7472
Part Number
78PR20K
Description
Resistor,variable,nonwire Wound,
CAGE

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.

Part 78PR20K NSN 5905-00-105-7472

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37405
FIIG:
A002A0
Concept No.:
1
App. Key:
B
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

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:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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