Model: MIL-R-18546/2

Nonind Wire Wound Fixed Resistor

Properties:

Tempurature Coefficient Of Resistance In Ppm Per Deg Celsius
-50.0 to 50.0
Electrical Resistance
20.000 ohms
Resistance Tolerance In Percent
-1.000 to 1.000
Ambient Tempurature In Deg Celsius At Full Rated Power
25.0
Ambient Tempurature In Deg Celsius At Zero Percent Rated Power
275.0
Tempurature Range Of Tempurature Coefficient In Deg Celsius
-55.0 to 275.0
Inclosure Method
Encased
Terminal Type
Threaded stud
Reliability Indicator
Not established
Terminal Length
Between 1.188 inches and 1.312 inches
Body Length
Between 4.406 inches and 4.594 inches
Body Width
Between 2.094 inches and 2.156 inches
Body Height
Between 2.157 inches and 2.219 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
Between 2.990 inches and 3.010 inches
Power Dissipation Rating In Watts
120.000 heat sink
Mounting Hole Size
Between 0.178 inches and 0.198 inches
Cubic Measure
46.000 cubic inches
Style Designator
Axial terminal (s)
Test Data Document
81349-mil-r-18546 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81349-mil-r-18546/2 government specification
NSN
5905-00-012-0786
Part Number
MIL-R-18546/2
Description
Resistor,fixed,wire Wound,nonind
CAGE
81349

Inc 37404 reinstated on 010303~a resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of high resistance wire (or ribbon) either wound on an insulated form or constructed so as to be self-supporting. The items must have inherent characteristics of inducing little or no self-inductance. Opposition to current flow is an inherent property of the resistance wire and is manifested by the heat dissipation in the resistor. Excludes suppressor, ignition interference. See also resistor (1), fixed, wire wound, inductive.

Part MIL-R-18546/2 NSN 5905-00-012-0786

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37404
FIIG:
A001A0
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:
B
ESD:
B
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.6000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
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:
657
TCC:
3
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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