Model: 127978-12

Non Wire Wound Variable Resistor

Special Features:

Two 0.088 in. Min diameter mtg holes spaced 1.000 in. Center to center

Properties:

Section Quantity
1
Body Style
Rectangular w/bushing
Reliability Indicator
Not established
Overall Length
1.578 inches
Overall Height
0.905 inches
Overall Width
0.359 inches
Shaft Diameter
0.115 inches
Shaft Length
0.250 inches
Mounting Bushing Length
0.250 inches
Body Length
1.328 inches
Body Width
0.359 inches
Body Height
0.405 inches
Shaft Style
Round, slotted
Actuator Type
Single shaft
Effective Electrical Rotation In Deg Angular Rotation
Between 7200.0 and 9000.0
Maximum Starting Torque
7.50 inch-ounces
Maximum Running Torque
7.50 inch-ounces
Screw Thread Diameter
0.216 inches
Screw Thread Series Designator
Unf
Screw Thready Qty Per Inch (tpi)
32.0
Terminal Location
Lower adjacent side two rows
Mounting Method
Standard bushing
Electrical Resistance Per Section
2.000 kilohms single section
Rotary Actuator Travel In Angular Deg
Between 7200.0 and 9000.0
Ambient Tempurature In Deg Celsius Per Section At Zero Percent Rated Power
105.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0/+50.0 single section
Tempurature Coefficient Of Resistance Per Section In Ppm Per Deg Celsius
-50.0 to 50.0 single section
Power Dissipation Rating Per Section In Watts
1.0 free air single section
Resistance Tolerance Per Section In Percent
-10.0/+10.0 single section
Resistance Tolerance Per Section In Percent
-10.0 to 10.0 single section
Actuator Travel Control Feature
Clutch
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 tab, solder lug
NSN
5905-00-729-0731
Part Number
127978-12
Description
Resistor,variable,wire Wound,non
CAGE
02734

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 127978-12 NSN 5905-00-729-0731

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:
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:
00
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: 8533390080
  • SITC: 77233
  • End Use: Electric apparatus
  • NAICS: 334416
  • USDA: 1

Freight Class: Wirewound variable resistors, nesoi

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