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W31-7K5JA1

Description
Wirewound Resistors - Through Hole
CategoryPassive components    The resistor    Wire wound resistor    Wire wound resistor - through hole   
File Size565KB,3 Pages
ManufacturerWelwyn Components (TT Electronics)
Download Datasheet Parametric View All

W31-7K5JA1 Overview

Wirewound Resistors - Through Hole

W31-7K5JA1 Parametric

Parameter NameAttribute value
MakerWelwyn Components (TT Electronics)
Product CategoryWirewound Resistors - Through Hole
seriesW30
EncapsulationAmmo Pack
technologyWirewound
Installation stylePCB Mount
Factory packaging quantity1000
Resistors
Cement Coated
Cement Coated
Wirewound Resistors
Wirewound Resistors
W30 Series
W30 Series
Welwyn Components
Values down to 10m
Tolerance to 1%
ohms
Tolerance to
protection
Flameproof
1%
Flameproof protection
Custom built to meet pulse requirements
Custom built to meet pulse requirements
Surface mount ZI-form option
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Values down to 10m ohms
Electrical Data
W31
Power rating at 25°C
Power rating at 70°C
Resistance range
TCR (-55 to 155°C)
Resistance tolerance
Standard values
Thermal impedance
Ambient temperature range
Limiting element voltage
TC R
°C/watt
°C
volts
ppm/°C
watts
watts
ohms
ppm/°C
%
3.0
2.5
0R01 to 10K
See below
<R10: 5 >=R10: 1, 2, 5
E24 series preferred
83
-55 to 155
100
Other values to special order
Notes
R01: ±1000
>R01 -
≤R033:
±500
>R033 -
≤R091:
±200
>R091 -
≤10R:
±150
>10R: ±100
Physical Data
Maximum Dimensions (mm) and Weight (g)
Type
W31
L max.
13
D max.
5.6 (note 1)
f min.
22.75
d nom.
0.8
Wt.nom.
1.0
d
D
L
f
_
Note 1: 5.8 for values <0R1
Construction
A high quality ceramic substrate is assembled with
interference fit end caps to which are welded the element
to the body, providing an effective seal which is impervious to
moisture, shock, vibration, fungus and salt spray.
Marking
W31 resistors are legend marked with type reference,
resistance value and tolerance. Values are marked in
accordance with IEC 62.
Solvent Resistance
The body and marking are resistant to all normal industrial
cleaning solvents suitable for printed circuits.
Terminations
Material
Strength
Solderability
Solder coated copper.
The terminations meet the requirements of
IEC 68.2.21.
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2.
Flammability
The resistor coating will not burn under any condition of
applied temperature or component overload.
General Note
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
TT Electronics reserves the right to make changes in product specification without
at time
or liability.
to print.
All information is subject to Welwyn’s own data and is considered accurate
notice
of going
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670
© TT Electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
www.ttelectronics.com/resistors
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