Resistors
Withstanding
Pulse Withstanding
Pulse
Pulse Withstanding
Chip Resistors
High Pulse Withstanding
Chip Resistors
Chip Resistors
Chip Resistors
PWC Series
PWC Series
PWC Series
Excellent
HPWC Series
pulse withstand performance
Excellent pulse withstand performance
Excellent pulse withstand performance
Improved working voltage
Excellent pulse withstand performance
Improved working voltage
Improved working voltage
Improved power
voltage
Improved working
rating
Improved power rating
Improved power rating
Standard chip sizes (0805 to 2512)
Improved power rating
Standard chip sizes (0805 2512)
Standard chip sizes (0805 toto 2512)
Custom designs available
Anti-sulphur version available
Custom designs available
Custom designs available
Welwyn Components
Welwyn Components
Welwyn Components
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
Electrical Data
Electrical Data
Size
Size
Tolerance
Tolerance
Resistance range
Resistance range
HPWC0805
PWC0603
Size
PWC0603
Size
@70°C
PWC0603
Power
@70°C
W
0.25
0.125
Power
W
0.125
Power @70°C
W
0.125
Power @70°C
Resistance range
ohms
Resistance range ohms
W
Tolerance
Tolerance
LEV
LEV
LEV
LEV
TCR
ohms
ohms
%
%
%%
V
V
V V
ppm/°C
75
150
75 75
HPWC2010
PWC1206
PWC2010
PWC0805
HPWC1206
PWC1206
PWC2010
PWC0805
PWC1206
PWC2010
PWC0805
1
1
0.25
0.33
0.33
0.5
0.5
0.75
0.75
0.25
0.33
0.75
0.33
0.50.5
0.75
1 1
0.25
1R0 to 100K
1R0 to 10M
1R0 to values:
1R0 to 10M
10R to 1M: 0.5, All 10M 1, 5
150
150
150
HPWC2512
PWC2512
1.51.5
PWC2512
1.5
1.5
2
2
PWC2512
2 2
200
10R to 1M: 0.5, values: 1, 1, 5
10R to 1M: 0.5, All All values:5 400
200
All values: 5, 10, 20
TCR ppm/°C
Operating temperature °C
°C
Operating temperature
Operating temperature
°C
Thermal Impedance
°C/W
Thermal Impedance °C/W
°C/W
Thermal Impedance
Thermal Impedance
°C/W
2
Values
Values
Values
Values
Pulse Capability
Pulse Capability
Pulse Capability
Pulse Capability
TCR
ppm/°C
TCR
°C
Operating temperature ppm/°C
Pad / trace area *
mm
Pad / trace area * mm
2
mm
2
Pad / trace area
Pad / trace area * *
mm
2
302
220
302
302
30
30
30
40
220
220
220
160
40
E24 or E96 preferred - other values to special order
E24 or preferred - other values to to special order
E24 or E96full preferred - note values special order
See graphs – E96 application otheravailable on request
100
125
40
50
125
250
40 E24 or E96 preferred - other
60
50 50
125 values to60
250
order
100
100
60 special 250
100
200
400
200 <10R:200
≥10R:100
400
<10R:200 ≥ 10R:100
<10R:200
≥10R:100
<10R:200 +155
-55 to
≥10R:100
-55 to +155
to +155
-55-55
160
145 to +155
80
70
145
80
80 80
70
70 70
160
145
160
145
50
125
60
250
400
500
500
500
500
55
55 55
55
40
40
40
500
500
500
500
40
See graphs
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
*Recommended minimum & adjacent trace area for each termination for rated power dissipation on on PCB
*Recommended minimum padpad & adjacent trace area for each termination for rated power dissipation FR4FR4 PCB
See graphs – application note available on request
See graphs – fullfull application note available on request
Physical Data
Physical Data
Physical Data
0603
0603
0805
0603
0805
0805
1206
0805
1206
1206
1206
2010
2010
2010
2010
2512
2512
2512
2512
L
L
L
L
1.5±0.1
1.5±0.1
1.5±0.1
2.0±0.15
2.0±0.3
2.0±0.3
2.0±0.3
3.2±0.2
3.2±0.4
3.2±0.4
3.2±0.4
5.1±0.3
5.1±0.3
5.1±0.3
5.1±0.3
6.5±0.3
6.5±0.3
Dimensions (mm) & weight (mg)
are given below mm and weight in g g
Dimensions of PWC resistors
Dimensions of PWC resistors are given below in in mm and weight in
T max
A
B
T
max
max
A
T
B
B
min
T max
A
A
0.55
0.3±0.15
0.6
B
min
0.8±0.1
0.55 0.3±0.15
0.3±0.15
min
0.8±0.1
1.25±0.15
0.55
0.3±0.15
0.60.6
0.9
1.25±0.2
0.6
0.6
0.3±0.15
0.9 min
min
1.25±0.2 0.60.6
0.3±0.15 0.90.9
1.7
min
1.25±0.2
0.3±0.15
1.6±0.2
0.4±0.2
1.7 min
1.6±0.2
0.7
0.7
0.4±0.2
min
1.6±0.2 0.70.7
0.4±0.2 1.71.7
3.0
min
1.6±0.2
0.4±0.2
2.5±0.2
0.6±0.3
3.0 min
2.5±0.2
0.8
0.8
0.6±0.3
min
2.5±0.2 0.80.8
0.6±0.3 3.03.0
4.4
min
2.5±0.2
0.6±0.3
3.2±0.2
0.6±0.3
4.4 min
3.2±0.2
0.8
0.8
0.6±0.3
min
0.80.8
W
W
W
W
0.8±0.1
Dimensions of PWC resistors are given below in mm and weight in g
C
C C
C
0.3±0.15
Wt.
Wt.
Wt.
Wt.
0.002
C
C
A
B
A A L
W
B B A
L L
A W W
A
Wrap-around terminations
(3 faces) terminations
Wrap-around
Wrap-around terminations
(3 faces)
(3 faces)
T
T
C
T
6.5±0.3 3.2±0.2
3.2±0.2
6.5±0.3
0.6±0.3 4.44.4 min 0.6±0.25
0.6±0.25
0.6±0.3
min
0.3±0.15 0.002
4.7
0.002
0.3±0.15
0.3±0.1
0.005
0.3±0.1
0.3±0.1 0.005
8.5
0.005
0.3±0.1
0.4±0.15
0.011
0.4±0.15
0.4±0.15 0.011
36
0.011
0.4±0.15
0.6±0.25
0.034
0.6±0.25
0.6±0.25 0.034
55
0.034
0.6±0.25
0.6±0.25
0.051
0.6±0.25
0.051
0.051
Thick film resistor material, overglaze and organic protection
areThick film resistor material,alumina substrate. Wrap-around
screen printed on a 96% overglaze and organic protection
areare screen have an on96% alumina substrate. Wrap-around
screen printed on a a 96% alumina barrier and solder
terminations printed electroplated nickelsubstrate. Wrap-around
terminations have electroplated nickel barrier and solder
terminations ensures excellent ‘leach’ resistance properties
coating, this have an an electroplated nickel barrier and solder
coating, this ensures excellent ‘leach’ resistance properties
coating, this ensures excellent ‘leach’ resistance properties
and solderability.
and solderability.
and solderability.
Note that anti-sulphur version parts below 100R are
Note that anti-sulphur version the below element
Note that anti-sulphur version parts below 100R are
produced in flip-chip format withpartsresistor 100R areon
produced in
produced in flip-chip format with the resistor element on on
the underside. flip-chip format with the resistor element
the underside.
the underside.
Construction
Construction
Construction
Thick film resistor material, overglaze and organic protection
Components not code and Reels marked with type,
Components are datemarked. Reels areare
value, tolerance,are not marked.quantity. marked with type,
value, tolerance, date code and quantity.
value, tolerance, date code and quantity.
Marking
Marking
Marking
Components are not marked. Reels are marked with type,
Solvent Resistance
Solvent Resistance
Solvent
protection is resistant to all normal industrial
The body
Resistance
The body protection is for printed normal
The bodysolvents suitable resistant to circuits. industrial
cleaning protection is resistant to all all normal industrial
cleaning solvents suitable printed circuits.
cleaning solvents suitable forfor printed circuits.
General Note
General Note
Welwyn Components reserves the right to make changes in product specification
or liability.
General Note
General Note
TT Electronics reserves the right to make changes in product specification without notice
without notice or liability.
BI Technologies IRC Welwyn
A subsidiary of
TTA subsidiaryplc
electronics of
A subsidiary
http://www.ttelectronics.com/resistors
of
TT electronics
TT electronics plc plc
07. 08
07. 07. 08
08
03.18
All information is subject reserves the right data
Welwyn Components
to make is considered accurate at time of going to print.
Welwyn Components
to
to Welwyn’s own make and changes in product specification without notice or liability.
All information is subject
reserves the right
own data
changes in product specification without
to print.
liability.
TT Electronics’
to
and is considered accurate at time of going
notice or
All information is subject to Welwyn’s own data is considered accurate at at time of going to print.
All information is subject to Welwyn’s own data andand is considered accuratetime of going to print.
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© TT Electronics
Components Limited
· Bedlington, Northumberland NE22 7AA, UK · Website: www.welwyn-tt.com
Telephone: +44 (0)
plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com
© Welwyn
1670
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: (0) (0) 1670 822181 · Facsimile: (0) (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44+44 1670 822181 · Facsimile: +44+44 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
37
High Pulse Withstanding
Pulse Withstanding
Chip Resistors
Chip Resistors
HPWC Series
PWC Series
Welwyn Components
Performance Data
Size
Load at rated power: 1000 hours at 70°C
Shelf life test: 12 months at room temperature
Derating from rated power at 70°C
Overload: 6.25 x rated power for 2 seconds
Dry heat: 1000 hours at 155°C
Long term damp heat
Temperature rapid change
Resistance to solder heat
Resistance to sulphur-bearing gas (AS version only): ASTM-B-809
Voltage proof
volts
Note: A 0.01 ohm addition to be added to the performance of all resistors <10 ohms.
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
1
1
1
0.25
0.25
0.25
500
ΔR%
ΔR%
Maximum
1
0.1
Zero at 155°C
0.1
0.2
0.25
0.05
0.05
0.05
Typical
0.25
0.02
Pulse Performance Data
Pulse Performance Data
Lightning Surge
HPWC resistors are tested in accordance with IEC 60 115-1 using both 1.2/50µs and 10/700µs pulse shapes. The limit of acceptance is a shift in
resistance of less than 1% from the initial value.
Lightning Surge
Lightning surge resistors are tested in
accordance with IEC 60 115-1 using
both 1.2/50µs and 10/700µs pulse shapes.
10 pulses are applied. The limit of
acceptance is a shift in resistance of less
than 1% from the initial value.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
http://www.ttelectronics.com/resistors
© 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
07. 08
03.18
High Pulse Withstanding
Chip Resistors
HPWC Series
Single Pulse
The single pulse graph is the result of 50 impulses of rectangular shape applied at one minute intervals. The limit of acceptance is a shift in
resistance of less than 1% from the initial value.
Continuous Pulse
The continuous pulse graph was obtained by applying repetitive rectangular pulses where the pulse period was adjusted so that the average
power dissipated in the resistor was equal to its rated power at 70°C. The limit of acceptance is a shift in resistance of less than 1% from the initial value.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
http://www.ttelectronics.com/resistors
© TT Electronics plc
03.18
High Pulse Withstanding
Pulse Withstanding
Chip Resistors
Chip Resistors
HPWC Series
PWC Series
Welwyn Components
Thermal Performance Data
% of Rated Power
Temperature Derating Curve
125
100
75
50
25
0
-15
70
Ambient Temperature /°C
155
Packaging
0805 and 1206 resistors are supplied on 8mm carrier tape and 2010 and 2512 resistors are supplied on 12mm carrier tape, all on 7 inch reels as per
IEC 286-3.
Application Note
Ordering Procedure
Ordering Procedure
Ordering Procedure
Ordering Procedure
This product has two valid part numbers:
product product has two numbers:
product has two part part numbers:
This ThisThishas two validvalidvalid part numbers:
HPWC resistors themselves can operate at a maximum temperature of 155°C. For soldered resistors, the joint temperature should not exceed 110°C. This
condition is met when the stated power levels at 70°C and recommended pad and trace areas are used. Pad and trace area is defined as the total area of
the solder pad plus all copper trace within two squares of the edge of the solder pad. Allowance should be made if smaller areas of copper are used.
erudecorP gniredrO
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(Welwyn)Number:JPWC2512-2K0JIrebm
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Pb-free)Pb-free)
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European
sm o k
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(Welwyn) Part Number:
(2512, 2 kilohms ±5%, Pb-free)
) y
±5%,
naep
European
HPWC2512-2K0JT18
I 0K2-2152CWP :
(2512, kilohms kilohms ±5%,
or
Number: PWC2512-2K0JI
(2512, 2
P
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Part
2
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Example:
(Welwyn)
li
Part
,215
Number: PWC2512-2K0JI
2
ra
kilohms ±5%, Pb-free)
2
5
1 1
2
P P W IC C 2
C 2
5
1 5
2
H
P W W P CW 2 J 5 0 1 K 2 2
1 1 16 1
6
2
1
1
1 1 2 1 2
2
5 2 2 24 2
5
2
3 3 3
3
3
-
2
3 3 3
4
-
I
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2 K J
0
J J
- - 2 2 2 K 1 0 5 J 2I I CI W
K 2 K 0
0
T 1
3
3
6
6
4 4 42 4 5 5 6 5 61 6
5
P
8
Ordering Procedure
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4
5
1 6 6 6
6
5
6
4
4
4 4 3
5
5
5 2
Anti-Sulphur
Value
Tolerance
iSTermination & Packing
Type T
Size
arAnti-Sulphur eulaV
Value ruhp Tolerance ezTermination & Packing Packing
Tolerance
gnikcaP & noi
Type
reTypecnAnti-Sulphur
Typem SizeSizeSizeoT Anti-Sulphur Value ValueluS-itnA Tolerancepy
Termination & Packing
tani
e
el Anti-Sulphur
e T
Termination &
Type Size
Value
Tolerance Termination & Packing
HPWC
PWC 5.Omit Dstandardstandard= E24characters r = t=m= ±0.5% I W=I Standard,
0805
0± for
for
s efor ra E24 3/44charactersa
Standard Pb-free finish
=
/3
i OD
PWC0603 0603 for standardhc 4E24 3/4E = characters D D
±5%
= ±0.5% P = Standard,
3/4 3/4 n
PWC
0603
Omit
Omit tca E24 = = = 2 dradcharacters ±0.5%
,dradnatS PWC0603 %OmitOmit forrstandard
E24 = 3/4 characters
tsD of
J
±0.5% 3060 C=I Standard,
=I
I = Standard,
0805 0805F = Anti-sulphur = 3/46characters s
0805 === ASs=eAnti-sulphur= 3/4E =r3/4 charactersS±1% 0
AS Anti-sulphur ra E96 = = 9 characters === A F
r tca
/3
3/4 uhplu
F=
3060 0805 %1± AS Anti-sulphurhc
E96 = 3/4 characters
-itnAF ±1% ±1%±1% 0603 0603 5000/reel
leer/0005
5000/reel
1206
AS
AS = Anti-sulphur
E964E96 E96characters F
K = ±10%
5= 80 06030603 5000/reel
0805
5000/reel
1206 5
1206 %1206
J = ±5% =0805, 1206, 1206,
smho =R = ohms = ohms J = ±5% ±5%21 0805, 1206,
RR = ohms
R
R = ohms
J = J 60±5% 1206,
0805, 0805,
,6021 ,5080 1206 ± = J
3000/reel
leer/0003
3000/reel
3000/reel
2010
2010
R = ohms
kilohms
M = ±20%
102
T3
2010 2010 3000/reel
3000/reel standard
0102 2010
2010
2010
1206
2010
0
2010
smholikK = kilohms
= K = kilohms
K K = kilohms
K=
2512
2152 2512
2010
1800/reel
2512
2512
2512
2512 2512 1800/reel
= = M = megohms
leer/0081
2152 2512
smhogemM
K = kilohms
= M megohms
M megohms
1800/reel
2512 1800/reel
M = megohms
1T
T1
T1T1T1
1800/reel standard
T18
2512
sizes sizes
leer/0001
sezis llA
1000/reel
1000/reel
AllAllAll sizes 1000/reel
sizes All 1000/reel
T1
All sizes 1000/reel available
USA USA
smh li
Number:
)
USA
bP
(IRC) (IRC)
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Part
,215
PWC-PWC2512LF-2K00-J P-CWP
(2512, kilohms ±5%,
(
Pb-free)
eerf
USA
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Part Number:
2(
PWC-PWC2512LF-2K00-J
(2512,
eb
kilohms
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k 2
Number: PWC-PWC2512LF-2K00-J
(2512, 2 2
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kilohms
A
Pb-free)
,
(IRC) Number: PWC-PWC2512LF-2K00-J W
J-00K2-FL2152C
:r
2(2512, 2 ±5%, Pb-free)
mu
kilohms ±5%,
SU
SnPb finish
J
6
-
1
15 1
1
2
24 2
2
3 3 3
3
4
3
4
42 4
4
5
51 5
5
6 6 6
-
0 P 0 W P CW - C P F WL CW 2 1 5 5 1 2 2 C LW F P - -- 2 C K 2 0 P 0 0 - 0 J -J J
P W K
P W 2-
P W C C 2
2
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1 1
2
L L F
2 W
K K -
0
C C -- W P 2
P -
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1 5
2
L 2
F F
2 -K
PB All sizes
-
Standard quantities
0
0
J
as for Pb-free
6
1 1 1
gnikcaP
epat citsalP
0003
0081
6 2 2
2
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2 3 3 53
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4 4 4
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5 5 5 35
2 6 6
6
1
6
Packing
Packing
Packing Packing
FamilyModelT SizeSizelaTermination itanimreT ValueiS Tolerance limaF
Value z
Tolerance
e Family
V Termination
y
Termination Value eValue ledoM Tolerance
Familyrelo
Model Size Termination no
Tolerance
Family cnaModelModel euSize
0 characters D =
1206for SnPb Pn SnPb i 4 4 =64 21
1206 Omit for SnPb r E24 E24 charactersD = ±0.5% ±0.5% Plastic tape tapetape
PWC PWC D PWCar Omit = 42 for bfor SE24 4m= characters = ±0.5%C WP
PlasticPlastic
tape
O
Omit
PWC PWC 1206
D
Plastic
PWC%5.0± =PWC r1206ahc 4Omit ESnPbE24of t= characters D C WP= ±0.5%
s etc
=
2010 LF4 LF 9LF =ePb-free 4 characters
sretc
01 characters = F
2010 =E
2010 = Pb-free erf-E96 E96 characters F = ±1% =
=
%1± = F 2010 arahc LF==6Pb-free E96P ==F4 characters F = ±1% ±1%±1%
L
Pb-free b E96 = 4 = 4 02
F
1206, 2010 3000/reel
0102 ,6021
1206, 2010
1206, 2010 3000/reel
1206, 2010
3000/reel
3000/reel
2512 o = R
R=
R = ohms
R R ohms215ohms = ±5% ±5%±5%
= = ohms 2 J J = ±5% =
2512
%5± = J 2512smh2512
J= J
K = kilohms
smholik = K
K=
K = kilohms
K = kilohms kilohms
2512 2512 1800/reel
2152
1800/reel
2512 1800/reel
1800/reel
2512
= = M = megohms
smhogem = M
megohms
M M megohms
= M megohms
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
General Note
Telephone: +44 (0) 1670 822181
make changes in product specification
Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
TT Electronics reserves the right to
· Facsimile: +44 (0) 1670 829465 ·
without notice or liability.
BI Technologies IRC Welwyn
09. 09
http://www.ttelectronics.com/resistors
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
03.18
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