Welwyn AW1603 Milspec Wirewound Vitreous Enamel Resistor 47 Ohm 5% 25W MBL4-4

£12.00

10 in stock

SKU: MBL4-4 Category:

Description

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For sale here we have the above…

1 Piece 

Tubular Vitreous Enamelled Wirewound Resistors

General Information
Vitreous enamelled wirewound resistors are capable of
withstanding a higher dissipation size for size, than any other
protected type; this is attributable to the higher operating
temperature which the wire and enamel can withstand.
Vitreous enamel provides exceptionally good protection to the
wire element and is essentially impervious to moisture. The
resistors can safely be used in harsh environmental conditions.
The Welwyn range is based on thirteen sizes of tube, each of
which has a recommended maximum dissipation which limits
operating surface temperature to a maximum of 375°C.
The stability and high reliability of Welwyn tubular vitreous
resistors is a direct result of the best quality materials being
used in their construction.
High purity ceramic tubes have been matched with nickel
chromium resistance wires and specially formulated enamel to
ensure that the resistors can withstand repeated heat cycling
without damage.
Connections between the resistance element and end
terminations are welded; other connections are brazed.
Mounting devices are available which permit resistors to be
mounted by both ends or by one end. Single ended mounting
is recommended for applications which do not subject the
resistor to shock or vibration.
Ferrules and the F type mounting plug are anchored into the
tubes with high temperature adhesive.

Specifications
Category / Application General Use
Technology / Construction Wirewound
Mounting / Packaging ThroughHole, ROHS COMPLIANT
Operating DC Voltage 750 volts
Operating Temperature -55 to 375 C (-67 to 707 F)

Product Information:

Status Active

Resistor Type FIXED RESISTOR

Manufacturer Series 1600

Mounting Feature THROUGH HOLE MOUNT

Operating Temperature -Min -55.0  Cel

Operating Temperature -Max 375.0  Cel

Package Shape TUBULAR PACKAGE

Packing Method Individual

Rated Temperature 70.0  Cel

Sub Category Fixed Resistors

Technology WIRE WOUND

Temperature Coefficient (ppm/Cel) 200

Terminal Shape WIRE

Working Voltage 750.0  V

Length 73mm

Diam. 19mm Max Diameter

Lead Length 35mm 

For datasheet search…Welwyn 1603

Or go directly to…

https://www.datasheets360.com/pdf/5193489739064910083

NSN no. 10W 113122

NSN (National Stock Number)  

A NATO Stock Number, or National Stock Number (NSN) as it is known in the US, is a 13-digit numeric code, identifying all the ‘standardized material items of supply’ as they have been recognized by all NATO countries including United States Department of Defense. 

They are stored with us still sealed in original NSN packaging and are absolutely ‘as new’.  Originally supplied to a large ‘Milspec ‘ type Co. these came to us as part of a lot of surplus stock, having been in storage for some years (sealed packaging dated Aug 1995) we have classified them as ‘new other’.

PLEASE NOTE!

These parts came to us as part of a lot of surplus stock from a large distribution Co. and have been kept in storage for some time, we have therefore classified them as ‘new other’, they are however pristine, stored with us sealed in original packaging, the photographs are representative of their general condition, being of some of our actual stock, and, as with all our products they come with a full guarantee. 

If you have similar items to this, or indeed any electronic components that are surplus to requirements please contact us with details.

Additional information

MPN

Brand