HE721A0520

HE721A0520 Reed Relay

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Datasheet. HE721A0520 specification

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

0.750in. ⁓3/4"

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

0.290in.

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

0.260in.

Case Material
The element,compound,or mixture of which the case is fabricated,excluding any surface treatment.

metal

Environmental Protection
The environmental elements or conditions that an item is designed or protected to resist or withstand satisfactorily.

hermetic

Fragility Factor
The measure of sensitivity of the item to be packaged. a factor used by packaging engineers in devising proper cushioning in a package.

moderately rugged

Winding Quantity
The number of individual /not electrically connected/ windings.

1

Purpose For Which Designed
The purpose for which the item is designed.

general

Coil Quantity
The number of coils included on the item.

1

Winding Dc Resistance Rating
The measured opposition to the flow of direct current offered by the item winding.

500.0 ohms single winding

Duty Type
Indicates the type of duty provided.

continuous

Mounting Facility Type And Quantity
Indicates the type and number of facilities by which the item is mounted.

1 PLUG-In terminal single mounting facility

Storage Type
Indicates the type of storage space required for an item in order to provide the degree of protection necessary to maintain serviceability standards.

general purpose warehouse

Cubic Measure
A measurement of volume taken by multiplying the length by the width by the height of an item and rendered in cubic units.

0.057 cubicin.

Nonpile-up Main Contact Arrangement
The designation that identifies the schematic diagram of the electrical configuration of the main nonpile-up contacts including the number of poles or forms.

1 pole, single throw, normally open, momentary action

Nominal Operating Current Rating And Type
The required current value,applied to the energizing element,at which the switching mechanism or actuator element must have assumed a fully operated position.

10.0 milliamperes dc single winding

Operating Voltage Rating And Type At Specified Temp
The amount and type of voltage required at designated temperature to be applied to the input or energizing element of the item to ensure normal operation of the switching elements.

5.0 volts dc 25 deg celsius single winding

Main Contact Load Current Rating At Maximum Rated Voltage
The amount of current the main contacts are rated to make or break at maximum rated voltage,with a specified load.

500.0 milliamperes dc resistive load

Main Contact Maximum Voltage Rating In Volts
The highest voltage at which the main contacts are rated for normal operation,expressed in volts.

200.0 dc

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

electrostatic shield

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

4 pin all functions

Answers.

What is the overall width?

0.260 inches maximum

What is the NSN for HE721A0520?

5945-01-530-4431

How is this classified for shipping?

Schedule B number: 8536410020
Relays, electromechanical, with contacts rated less than 10 a, for a voltage not exceeding 60 v

What's the federal classification of HE721A0520?

FSC 5945 ⁓ Relays and solenoids

Excluding contractors.

NSN 5945-01-530-4431 RELAY,REED

electrostatic shield 0.260" overall width 0.750" overall length

NIIN
015304431
NIIN Date
05/26/05
Schedule B
8536410020 
Name Code
30544
FIIG
A03300
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
--
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. HE721A520 Cage 12617

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Similar by Design Other relays with similar characteristics

Nothing similar to this part number was found in our inventory

HE721A0520 / Relay,reedWhat is the formal definition of this item?

A relay consisting of an energizing coil and a metallic reed switch mechanism. the reeds serve as both core and contacts, which are not hinged or pivoted and which move by flexure when acted upon by a magnetic field induced by energization of the coil. it may also include a biasing magnet. the biasing magnet, either aids or opposes the movement of the reeds and the opening or closing of the contacts. for items in which actuation is dependent on the resonant frequency of the reeds see relay, resonant reed. excludes relay, electromagnetic.