Model: 3550N40R20H

Wire Wound Fixed Resistor

Properties:

Tempurature Coefficient Of Resistance In Ppm Per Deg Celsius
-30.0/+30.0
Electrical Resistance
40.000 ohms
Resistance Tolerance In Percent
-3.000/+3.000
Heat Sink Material
Aluminum alloy
Heat Sink Length
12.000 inches
Heat Sink Width
12.000 inches
Heat Sink Thickness
0.059 inches
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/+275.0
Inclosure Method
Encased
Terminal Type
Tab, solder lug
Reactance Characteristic
Inductive
Reliability Indicator
Not established
Terminal Length
0.406 inches
Body Length
1.968 inches
Body Width
0.630 inches
Body Height
0.610 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
1.563 inches
Power Dissipation Rating In Watts
50.000 heat sink
Terminal Width
0.140 inches
Mounting Hole Size
0.125 inches
Style Designator
Axial terminal (s)
NSN
5905-00-434-8721
Part Number
3550N40R20H
Description
Resistor,fixed,wire Wound
CAGE
00213

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. Opposition to the flow of current is an inherent property of the resistance wire and is manifest by the heat dissipation in the resistor. Excludes suppressor, ignition interference.

Part 3550N40R20H NSN 5905-00-434-8721

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00010
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:
ESD:
MMAC:
CRITL:
X

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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