2RS1-2-5

2RS125 Thermal Resistor

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Datasheet. 2RS1-2-5 specification

Reliability Indicator
An indication that the level of probability that an item will operate without failure,at a specified rated capability,at a specified temperature,and for a specified period of time,has been established by testing random samples of production lot.

not established

Terminal Length
A measurement of the longest dimension of a terminal,in distinction from width.

2.000in.

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

0.180in.

Body Outside Diameter
The length of a straight line which passes through the center of the body,and terminates at the outside circumference.

0.450in.

Body Width
A measurement taken at right angles to the length of the body,in distinction from thickness.

0.070in.

Terminal Diameter
The length of a straight line which passes through the center of a terminal,and terminates at the circumference.

0.032in.

Maximum Power Dissipation Rating
The maximum amount of electrical energy that can be expended by an item.

2.00 watts

Maximum Operating Temp
The maximum temperature at which the item is rated to operate for an extended period of time.

150.0 deg celsius

Thermal Time Constant In Seconds
The time required for the temperature of an item to change 63.2 percent of the difference between its initial and final body temperature when subjected to a temperature change under zero power conditions,expressed in seconds.

85.0

Power Dissipation Constant In Milliwatts Per Deg Celsius
The ratio,at a specified ambient temperature,of a change in power dissipation in an item to the resultant body temperature change,expressed in milliwatts per degree celsius.

14.0

Zero Power Temp Coefficient Of Resistance In Percent Per Deg Celsius
The ratio of the rate of change of resistance with temperature to the resistance of the item at a specified temperature,expressed in percent per degree celsius.

37.80

Inclosure Type
Indicates the type of inclosure provided to coat,cover,protect,or encase the item.

encapsulated

Zero Power Resistance
The dc resistance value measured with a power dissipation low enough that any further decrease in power will result in not more than 0.1 percent change in resistance.

2.500 ohms

Zero Power Resistance Tolerance In Percent At Reference Temp
The limits of permissible variation in the electrical resistance value of an item from its rated zero power resistance,expressed in percent at reference temperature.

-10.0/+10.0

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

disk

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

2 wire lead

Answers.

What is the style?

Disk

What is the overall width?

0.180 inches

What is the NSN for 2RS1-2-5?

5905-00-253-1865

How is this classified for shipping?

Schedule B number: 8533400080
nmfc 062960
Variable resistors, including potentiometers

What's the federal classification of 2RS1-2-5?

FSC 5905 ⁓ Resistors

Excluding resistance wire.

NSN 5905-00-253-1865 RESISTOR,THERMAL

disk 0.180" overall width

NIIN
002531865
NIIN Date
09/10/72
Schedule B
8533400080 
Name Code
00309
FIIG
A086A0
Item Weight
0.000lbs
Item Dimensions
--
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Major End Users Countries and entities

  • - Singapore 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps) 
Commodity (for shipments via water)
Communications/electronics, other than sigint/ew or comsec repair parts and components 
NMFC (national motor freight code)
062960 REOSTATS/PARTS NOI 
UFC (universal freight code)
35140 

Similar by Design Other resistors with similar characteristics

Nothing similar to this part number was found in our inventory

2RS1-2-5 / Resistor,thermalWhat is the formal definition of this item?

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.