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W31 Datasheet Preview

W31 Datasheet

Wirewound Resistors

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RCeesmisteornst Coated
CWemireentwCooautend d Resistors
Wirewound Resistors
W30 Series
WV30alSueersieds own to 10m ohms
TVoallueerasndcoewntoto11%0m ohms
FTloalemraenpcreotoof1p%rotection
CFluasmtoepmrobouf pilrtotoecmtioenet pulse requirements
Custom built to meet pulse requirements
Surface mount ZI-form option
Welwyn Components
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
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
TCR
Physical Data
watts
watts
ohms
ppm/° C
%
° C/watt
°C
volts
ppm/° C
W31
3.0
2.5
0R01 to 10K
See below
<R10: 5 >=R10: 1, 2, 5
E24 series preferred
83
-55 to 200
100
R01: ±1000
>R01- ≤R033: ±500
>R033- ≤R091: ±200
>R091- ≤10R: ±150
>10R: ±100
Notes
Other values to special order
Maximum Dimensions (mm) and Weight (g)
Type L max. D max. f min.
W31
13 5.6 (note 1) 22.75
Note 1: 5.8 for values <_0R1
d nom.
0.8
Wt.nom.
1.0
dD
L
f
Construction
A high quality ceramic substrate is assembled with
interference fit end caps to which are welded the element
winding and termination wires. The protection is then applied
to the body, providing an effective seal which is impervious to
moisture, shock, vibration, fungus and salt spray.
Terminations
Material
Solder coated copper.
Strength
The terminations meet the requirements of
IEC 68.2.21.
Solderability The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2.
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.
Flammability
The resistor coating will not burn under any condition of
applied temperature or component overload.
General Note
GWeenlweyrnaCl oNmoptoenents reserves the right to make changes in product specification without notice or liability.
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BI Technologies IRC A sWubseidliawryyofn
TT electronics plc
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Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
www.ttelectronIsiscus.ecoDm·/r0e7si.s0to6rs
© TT Electronics plc
03.20
99




TT

W31 Datasheet Preview

W31 Datasheet

Wirewound Resistors

No Preview Available !

CCeemmeennttCCooaateteddWirewound Resistors
WirewoCunemd eRnetsCisotoartsed
WW3300SSeerireiseWs irewound Resistors
W30 Series
Welwyn Components
Welwyn Components
Performance Data
Performance Data
Load: 1000 hrs 3 watts @ 25°C
R%
1000 hrs L2o.a5dw: att1s0@007h0r°sC3 watts @ 25°C
R%
Dry heat: 1000 hrs at 210000°0Chrs 2.5 watts @ 70°C
R%
Derating from roDorymhteeamt:p1e0ra0t0urhers at 200°C
Short term overDloeardat1in0gxfrroatmedropoomweter mfopre5rasteucroends
R%
Climatic
Short term overload 10 x rated power for 5 secondsR%
Climatic categorCylimatic
Long term dampClhimeaatt:ic5c6adteagyos ry
R%
Temperature rapLiodncghatenrgme damp heat: 56 days
R%
Resistance to soTldeemrpheeraatture rapid change
R%
Vibration and buRmespistance to solder heat
R%
Voltage proof Vibration and bump
volts
Pulse handling Voltage proof
Maximum
Typical
5.0 + .001Maximum
3.5
R5%.0 + .0015.0 + .001
3.5
R5%.0 + .0015.0 + .001
3.5
R%
se5e.0d+er.a0t0in1gcurve
5.0 + .001
see derati1n.g0 curve
R5%.0 + .0015.0 + .001
3.5
R%
5.05+5/.200001/56
3.0 + .001
55/2010./056
R2%.0 + .0013.0 + .001
1.5
R5%.0 + .0012.0 + .001
2.0
R5%.0 + .0015.0 + .001
2.0
R%
5.0 5+0.000m1in
volts
Data available by reques5t 00 min
Typical
3.5
3.5
3.5
1.0
3.5
1.0
1.5
2.0
2.0
PulWse3h1anSdelriniegs Derating Curve
Data available by request
130
120
W31 Series Derating Curve Application Notes
110 130
100 120
Application NotesThe terminations should not be bent closer than 1.6mm from
90 110
80 100
70 90
60 80
50 70
40 60
30 50
20 40
10 30
the body,
1.2mm.
andTthhee treercmominmateionndsesdhmouinldimnuomt bbeebnednrtacdliousseirsthan 1.6mm from
the body, and the recommended minimum bend radius is
Care must be 1ta.2kmenmw. hen determining clearance between the
risesmisetoarsubroeddy6amrCneamsdrisettfhormoer umbPs.oCtbd.boByed.ayton.ardkoettnhheewrPh.cCeon.mBd.peootrneoremtnhtiens.rinRcgeosmcilseptaaornnacenenctes.bReetwsiseteanncthee
020 40 60
Packaging
80
2110000
020
120 140
40 60
160 180 200
Temp
80 100 120
220
140
240
160
260
180
280
200
220
240
260 280
Temp
is measured 6mm from body.
10
The
Can
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ammo
packs.
10
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f1
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f1
63
f62 1.4
f2
fm1 m
6
63
f2
6
Ordering Procedure
OExramdpele:rWinO31gradt 1PekrrilioonhgmcsePadnrdou1c%reetodleurarnece packed in a box of 1000 pieces
f1 – f2 1.4 mm
ExamExpalem: pWle3:1W-13K10aFtA11k(ilWoh3m1,s1ankdilo1h%m t±o1le%ra,nPcbe-fpreaWec)ke3d1ina1 bKox0 oFf A10100 pieces
Type
W311K0F A1
Value (usWe IET3yCp6e21code- ) 1 K 0 F A 1
Tolerance (uVs1aeluIEeC(u6s2ecIoEdCe6) 2 2code) 3
4
F 1%
G 2% 1 Tolerance (u2se IEC62 code) 3
J
5% TypGeF
1%
2%
Value
Tolerance
Packing
A1
T1
W31J E254%= 3/4 characters F = ±1%
ATmaPpmeaockin11gK00R00=00=k//rboieloohexhml mss
StandaGrJd==
±2%
±5%
A1 Ammo
T1 Tape
A1 Ammo 1000/box Standard
4
Packing
1000/box
1000/reel
Standard
T1 Tape 1000/reel
©GeWneerlawl NynotCeomponents Limited Bedlington, Northumberland NE22 7AA, UK
BI Technologies
TTeTleEplehcotnroen: i+cs4r4es(e0r)ve1s6t7h0e 8ri2g2h1t 8to1m· aFkaecscihmainleg:e+s4in4p(r0o)d1u6c7t 0sp8e2ci9fi4ca6t5io·nEwmitahiol:uitnnfoo@ticweeolwr liyanb-itlitt.yc.om · Website: www.welwyn-tt.com
IRC Welwyn
Issue D · 07.06
100
All information is sub©jecWt toeTlwT EylenctrConoicms’powonndeantatsanLdiims ciotnesdiderBeeddalicncgutroante, aNtotritmheumofbgeorlianngdtoNpEr2in2t.7AA, UK
www.ttelectronics.com/resistors
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Issue D · 07.06
© TT Electronics plc
100 03.20


Part Number W31
Description Wirewound Resistors
Maker TT
PDF Download

W31 Datasheet PDF






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