Wirewound Resistors - Through Hole 3Watt 330 ohm 5%

W21-330RJI

Manufacturer Part NumberW21-330RJI
DescriptionWirewound Resistors - Through Hole 3Watt 330 ohm 5%
ManufacturerWelwyn Components
SeriesW20
TypeVitreous Enamelled Wirewound Resistors
W21-330RJI datasheet
 


Specifications of W21-330RJI

Resistance330 OhmsTolerance5 %
Power Rating3 WattsTermination StyleAxial
Operating Temperature Range- 55 C to + 350 CDimensions5.6 mm Dia. x 12.7 mm L
ProductPower Resistors Wire Wound Vitreous EnamelVoltage Rating100 Volts
Temperature Coefficient+/- 75 PPM / CLead Free Status / RoHS StatusLead free / RoHS Compliant
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Vitreous Enamelled
Wirewound Resistors
W20 Series
CECC approved
Suitable for harsh environments
Impervious lead free vitreous enamel coating
Overload characteristics ideal
for protection circuits
High stability and reliability
High power dissipation for size
Electrical Data
C
o
m
m
r e
i c
l a
P
o
w
e
r r
t a
n i
g
t a
2
° 5
C
R
e
s i s
a t
n
e c
a r
n
g
e
t a
1
%
o t
e l
a r
n
e c
2
%
o t
e l
a r
n
e c
5
%
o t
e l
a r
n
e c
T
C
R
(
5 -
° 5
o t
2
0
° 0
) C
BS CECC 40-201-002 Requirements
P
o
w
e
r r
t a
n i
g
t a
2
° 5
C
P
o
w
e
r r
t a
n i
g
t a
7
° 0
C
R
e
s i s
a t
n
e c
a r
n
g
e
t a
1
%
o t
e l
a r
n
e c
2
%
o t
e l
a r
n
e c
5
%
o t
e l
a r
n
e c
T
C
R
(
5 -
° 5
o t
2
0
° 0
) C
This table indicates the CECC specification requirements, and these are met or exceeded by the corresponding W20 series products
Applicable to commercial and approved ranges
i L
m
t i
n i
g
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m
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S
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a
d r
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s e
T
h
r e
m
a
i l
m
p
e
d
a
n
e c
A
m
b
e i
t n
e t
m
p
e
a r
u t
e r
a r
n
g
e
Physical Data
Dimensions (mm) and Weight (g)
Type
L max
D max
f min
W21
12.7
5.6
22.75
W215
22.0
7.0
23.1
W22
22.0
8.0
23.1
W23
38.0
8.0
-
W24
53.5
8.0
-
400
W215
W21
W24
W23
W22
300
200
100
0
0
5
10
15
20
Dissipation – Watts
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
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0
R
5
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1
0
K
0
R
5
o t
o
h
m
s
0
R
1
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1
0
K
0
R
1
o t
p
p
° /
C
T
p y
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: y l
Style
JB
HB
w
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2
9 .
5
0 .
w
t a
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2
5 .
4
3 .
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1
R
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1
0
K
1
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0
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5
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1
0
K
0
R
5
o t
o
h
m
s
0
R
1
o t
1
0
K
0
R
1
o t
≥5 ohms < 10 ohms: ±400
p
p
m
° /
C
o v
s t l
1
0
0
1
6
E
2
4
r p
f e
°
/ C
w
a
t t
8
8
5
°
C
d nom
Wt.nom
0.8
1
0.8
2
d
0.8
2
0.8
3.5
0.8
5
Construction
A high purity ceramic substrate is assembled with interference fit end caps to which are
welded the termination wires. The resistive element is wound on the substrate and welded to
the caps; the vitreous enamel protective coating is then applied.
Terminations
Material
Copper clad steel wire, nickel plated and solder-coated.
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.
Length
W23’s and W24’s are not supplied on tape. Minimum lead length is 30 mm.
Marking
The resistors are legend marked with type reference, resistance value and tolerance. Values are
marked in accordance with IEC 62.
Welwyn Components
1
5
W
2
2
W
2
3
W
2
4
7
0 .
1
0
0 .
1
4
0 .
1
5
K
1
R
o t
2
2
K
1
R
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6
0
K
1
R
o t
1
0
0
1
5
K
0
R
5
o t
2
2
K
1
R
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6
0
K
1
R
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1
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0
1
5
K
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1
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2
2
K
0
R
1
5
o t
6
0
K
0
R
2
o t
1
0
0
<
+
-75
Maximum: +-200
KB
LB
MB
7
0 .
1
0
0 .
1
4
0 .
6
0 .
9
0 .
1
2
0 .
1
5
K
1
R
o t
2
0
K
1
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5
6
K
1
R
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1
0
0
1
5
K
0
R
5
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2
0
K
1
R
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5
6
K
1
R
o t
1
0
0
1
5
K
0
R
1
o t
2
0
K
0
R
1
5
o t
5
6
K
0
R
2
o t
1
0
0
≥10 ohms: ±200
0
2
0
0
5
0
0
7
5
0
r e
e r
. d
O
h t
r e
a v
u l
s e
o t
p s
c e
l a i
o
d r
r e
8
4
4
2
9
2
2
5 -
5
o t
2
0
0
D
L
f
A subsidiary of
TT electronics plc
K
K
K
K
K
K
85

W21-330RJI Summary of contents

  • Page 1

    ... W22 22.0 8.0 23.1 W23 38.0 8.0 - W24 53.5 8.0 - 400 W215 W21 W24 W23 W22 300 200 100 Dissipation – Watts General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn’s own data and is considered accurate at time of going to print. ...

  • Page 2

    ... Packaging For W21 and W215 the standard method of packaging is taped in Ammo Packs. For W22 the standard method of packaging is taped and reeled. Alternatives available by special request are detailed in the table below. W23’s and W24’s are available only as loose packed in boxes. W series resistors can be supplied preformed ...

  • Page 3

    ... Tolerance (use IEC62 code Packing Ammo W21, W215 I Tape W22 Bulk W23, W24 For CECC released product state on order the CECC number and style. Example: W22-3K3JI CECC40201-002 KB For SnPb finish instead of Pb-free replace the packing suffix with PB. Example: W22-3K3JPB © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · ...