Model: 538172-21

Thermal Resistor

Properties:

Reliability Indicator
Not established
Terminal Length
1.250 inches
Body Length
0.410 inches
Body Outside Diameter
0.140 inches
Terminal Diameter
0.025 inches
Maximum Power Dissipation Rating
500.00 milliwatts
Ambient Tempurature At Full Rated Power
25.0 degrees celsius
Maximum Operating Temp
125.0 degrees celsius
Thermal Time Constant In Seconds
60.0
Power Dissipation Constant In Milliwatts Per Deg Celsius
5.0
Tempurature Points For Resistance Readings At Zero Power
-15.0 degrees celsius 2nd resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
-55.0 degrees celsius 1st resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
0.0 degrees celsius 3rd resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
100.0 degrees celsius 6th resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
125.0 degrees celsius 7th resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
50.0 degrees celsius 4th resistance-temperature point
Tempurature Points For Resistance Readings At Zero Power
75.0 degrees celsius 5th resistance-temperature point
Zero Power Resistance At Specificationified Temp
41.8 ohms 1st resistance-temperature point
Zero Power Resistance At Specificationified Temp
53.7 ohms 2nd resistance-temperature point
Zero Power Resistance At Specificationified Temp
58.7 ohms 3rd resistance-temperature point
Zero Power Resistance At Specificationified Temp
78.9 ohms 4th resistance-temperature point
Zero Power Resistance At Specificationified Temp
105.1 ohms 6th resistance-temperature point
Zero Power Resistance At Specificationified Temp
119.0 ohms 7th resistance-temperature point
Zero Power Resistance At Specificationified Temp
91.8 ohms 5th resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-12.0/+12.0 6th resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-15.0/+15.0 7th resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-15.0/+15.0 1st resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-7.0/+7.0 3rd resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-7.0/+7.0 4th resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-9.0/+9.0 2nd resistance-temperature point
Resistance Tolerance At A Specificationified Tempurature In Percent
-9.0/+9.0 5th resistance-temperature point
Inclosure Type
Encapsulated
Zero Power Resistance
68.000 ohms
Zero Power Resistance Tolerance In Percent At Reference Temp
-5.0/+5.0
Style Designator
Rod
Test Data Document
81349-milt23648 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.).
Terminal Type And Quantity
2 wire lead
NSN
5905-00-375-0171
Part Number
538172-21
Description
Resistor,thermal
CAGE
96214

A thermally sensitive resistor whose primary function is to exhibit a change in electrical resistance with a change in body temperature. Item may be mounted in a probe or housing. For ballast tube type resistors, see resistor (1), current regulating. Excludes transmitter (1), temperature, electrical resistance and temperature element, resistance meteorological.

Part 538172-21 NSN 5905-00-375-0171

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00309
FIIG:
A086A0
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:
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:
0.1000lbs
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:
72D
TCC:
3
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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