Model: 78LR20K

Nonwire Wound Variable Resistor

Properties:

Section Quantity
1
Body Style
Rectangular w/mounting holes/slots
Reliability Indicator
Not established
Overall Length
Between 1.270 inches and 1.340 inches
Overall Height
Between 0.310 inches and 0.360 inches
Overall Width
Between 0.250 inches and 0.300 inches
Mounting Hole Diameter
0.093 inches
Shaft Diameter
Between 0.100 inches and 0.130 inches
Shaft Length
Between 0.035 inches and 0.075 inches
Body Length
Between 1.235 inches and 1.265 inches
Body Width
Between 0.250 inches and 0.300 inches
Body Height
Between 0.310 inches and 0.360 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Maximum Starting Torque
8.00 inch-ounces
Lateral Distance Between Mounting Hole Centers
1.000 inches
Mounting Facility Quantity
2
Terminal Location
Rear end
Mounting Method
Unthreaded hole
Electrical Resistance Per Section
20.0 kilohms single section
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
125.0 single section
Power Dissipation Rating Per Section In Watts
0.75 free air single section
Resistance Tolerance Per Section In Percent
-30.0/+30.0 single section
Resistance Tolerance Per Section In Percent
-30.0 to 30.0 single section
Ambient Tempurature In Deg Celsius Per Section At Full Rated Power
70.0 single section
Standard Taper Curve Per Section
A single section
Terminal Type And Quantity
3 wire lead
NSN
5905-00-105-7622
Part Number
78LR20K
Description
Resistor,variable,nonwire Wound,
CAGE
73138

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 78LR20K NSN 5905-00-105-7622

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

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:
LVL_A:
Q
LVL_B:
Q

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: 8533400080
  • SITC: 77235
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Variable resistors, including potentiometers, nesoi

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