High Power
• •
33WWatts ininaa11WWatt size package*
atts
att size package*
Resistance
from
High Power
• •
Resistance rangefrom 1R0 10K
Resistors
Resistors
range±1% 1R0 toto10K
Welwyn Components
Chip
Tolerances to
• •
Tolerances to ±1%
Welwyn Components
Chip
Power Chip
•
Resistors
ed
Resistors
•
AEC-Q200 Quali ed
AEC-Q200 Quali
High
SC3 Series
* * Rated Power @@ 70˚C
Rated Power 70˚C
SC3 Series
SC3 Series
SC3 Series
3 W atts in a 1 W att size package*
•
SC3 Series
Resistance range from 1R0 to 10K
•
3 W atts
•
in a 1 W att size package*
3 watts in a 1 watt size package
•
range from 1R0 to 10K
•
ResistanceTolerances to ±1%
Resistance range from 1R0 to 10K
•
AEC-Q200
•
Tolerances to ±1% Quali ed
Tolerances to ±1%
*
Quali ed
Electrical Data
Electrical Data
•
AEC-Q200
Rated Power @ 70˚C
AEC-Q200 Qualified
*
Rated Power @ 70˚C
C h a r a ctctr ir its t i c
Ch a r a e e s i c
Power dissipation @70 ˚ C C
Power dissipation @70 ˚
Resiststnce e ange e
R e i a a nc R R a ng
LEV V
LE
Ambient temp range
Ambient temp range
Power Derating
Power Deratin
V a la le e
V uu
3 3watts
watts
1R0 to 10K
1R0 to 10K
100 V V
100
100
100
% Of Power Rating
% Of Power Rating
80
80
60
60
-55 to +150˚C
-55 to +150˚C
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
Electrical
ra cteristic
C h a
Data
Resiststnce eololrernce e
R e i a a nc t t e a a nc
TCR
TCR
Physical Data
Physical Data
To p
To p
0.51
±
0.13m m
Va lu e
Termination
Termination
Power dissipation @70 ˚ C
3 watts
C h a r a ct e r i s t i c
Va lu e
Pad &1R0 to 10K for maximum
Pad & trace area for maximum
trace area
100
Resistance Range
Power dissipation @70 ˚ C
3 wattspower rating
power rating
LEV
100 V
80
Resistance Range
1R0 to 10K
Ambient temp range
-55 to +150˚C
LEV
100 V
Resistance tolerance
1, 2, 5%
60
Ambient temp range
-55 to +150˚C
TCR
±100ppm/˚C
Resistance tolerance
1, 2, 5%
40
Leach-resistant solder-plated
Termination
TCR
±100ppm/˚C
To pp
To
copper wrap-around
20
Leach-resistant solder-plated
Termination Pad & trace area for maximum
300mm
2
copper wrap-around
0.51
±
0.13m mm
0.51
±
0.13m
0
power rating
Pad & trace area for maximum
300mm
2
power rating
1 , ,25 %%
,5
40
Power
,12
Derating Curve
40
±100ppm/˚C
±100ppm/˚C
20
20
Power Derating Curve
Leach-resistant solder-plated
Leach-resistant solder-plated
100
copper wrap-around
copper wrap-around
00
% Of Power Rating
80
60
40
20
0
300mm
2 2
300mm
25
˚ ˚
25
7
T T empera
empe
Physical Data
Physical Data
% Of Power Rating
25
˚
T
25
˚
0.81
˚
0.31mm
T emperature
0.81
±
0.31mm
in
±
C
70
˚
150
˚
emperature in
˚
C
Plating
Plating
wrap-around
wrap-around
2.29
2.29
±
0.13m mm
±
0.13m
Bottom
Bottom
(Board Side)
(Board
˚
Side)
70
150
˚
Re
R
Sold
So
6.35
±
0.13m mm
6.35
±
0.13m
Bottom
(Board Side)
Bottom
(Board Side)
0.81
±
0.31mm
0.51
±
0.13m m
Recommended
Solder Pad Layout
Recommended
0.762
Solder
0.762
Layout
Pad
±
0.127m mm
±
0.127m
thickness
thickness
0.81
±±
0.13m mm
3.18 0.31mm
3.18
±
0.13m
Plating
wrap-around
2.29
±
0.13m m
2.29
±
0.13m m
7.6m m
7.6m m
2mm
1mm
2mm
1mm
6.35
±
0.13m m
6.35
±
0.13m m
Plating
wrap-around
3.18
±
0.13m m
3.18
±
0.13m m
0.762
±
0.127m m
General Note
General Note
thickness
0.762
±
0.127m m
thickness
Welwyn Components reserves the right toto make changes in product speci cation without notice or liability.
Welwyn Components reserves the right make changes in product speci cation without notice or liability.
All information is is subject to Welwyn’own data and is is considered accurate at time of going to print.
All information subject to Welwyn’s s own data and considered accurate at time of going to print.
©© W elwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
W elwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
84
84
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
General Note
General Note
Welwyn
Note
General
Components reserves the right to make changes in ·product speciNorthumberland notice 7AA, UK
© W elwyn Components Limited
Bedlington, cation without NE22 or liability.
84
Welwyn Components reserves the right to make changes in product speci cation without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670
notice
Email:
TT Electronics reserves the right to make changes in product specification without
829465
or
·
liability.
info@welwyn-tt.com · Website: www.welwyn-tt.com
All information is
Components Limited
·
data and is considered accurate
NE22 7AA, UK
to print.
subject to TT Electronics’ own
Bedlington, Northumberland
at time of going
© W elwyn
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
BI Technologies IRC
A
Welwyn
Issue A ·
04.10
subsidiary of
03.02
TT electronics plc
www.ttelectronics.com/resistors
Issue A ·
04.10
03.02
A subsidiary of
TT electronics plc
84
© TT Electronics plc
09.17
High Power
High Power
Chip Resistors
Chip Resistors
SC3
Series
SC3
Series
Construction
Resistive thick film material, overglaze and organic protection
are screen printed on a 96% alumina substrate. The
components are laser trimmed to achieve the required
resistance tolerance.
Welwyn Components
Chips can withstand immersion in solder at 250˚C for 90
seconds and are suitable for reflow or wave soldering
mounting applications.
Marking
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Chips are packed and mounted with marking side up.
The SC3 Chips are mounted with the actual resistor element
mounted face down on its termination pads.
Terminations
The wrap-around terminations have an
have an electroplated
copper terminations
electroplated nickel
barrier
barrier and tin-lead solder
ensures
this ensures
nickel
and matte tin finish. This
coating,
excellent ‘leach’ resistance properties
and
solderability.
Performance Data
ref
3
4
6
7
8
14
15
16
18
21
22
AEC-Q200 Table 7
Test
High Temp. Exposure
Temperature Cycling
Moisture Resistance
Biased Humidity
Operational Life (Cyclic Load)
Vibration
Resistance to Soldering Heat
Thermal Shock
Solderability
Board Flex
Terminal Strength
Short Term Overload
Low Temperature Storage
Low Temperature Operation
Shelf Life Test
Leach Resistance
Method
MIL-STD-202 Method 108
JESD22 Method JA-104
MIL-STD-202 Method 106
MIL-STD-202 Method 103
MIL-STD-202 Method 108
MIL-STD-202 Method 204
MIL-STD-202 Method 210
MIL-STD-202 Method 107
J-STD-002
AEC-Q200-005
AEC-Q200-006
6.25 x Pr for 2s
-65°C for 100 hours
-65°C for 1 hour then Pr for 45 minutes
Room temp for 12 months
Solder dip at 250°C
R%
R%
R%
R%
R%
R%
R%
R%
R%
R%
R%
R%
R%
R%
Max.+0.01
0.5
0.25
0.5
0.5
1.0
0.25
0.25
0.5
>95% coverage
0.25
0.25
0.5
0.5
0.5
0.1
90s minimum
0.05
0.05
Typ.
0.2
0.1
0.2
0.1
0.5
0.05
0.05
0.2
Temperature Rise vs Pad Area
1000
Temperature Rise (˚ C)
Pulse Power Rating
100
100
Power (watts)
100mm
2
1 watt
10
10
1
300mm
2
Termination Pad Area (each end)
2 watt
3 watt
1000mm
2
0.1
1.0
Time (sec)
10.0
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
www.ttelectronics.com/resistors
© 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
© TT Electronics plc
Issue A ·
04.10
03.02
09.17
High Power
High Power
Chip Resistors
Chip Resistors
SC3
Series
SC3
Series
Welwyn Components
Packaging
LRF3W Resistors
supplied taped and reeled as
as
IEC 286-3. The standard quantity per reel is
is 1800 parts.
SC3 Resistors are
are supplied taped and reeled
per
per IEC 286-3. The standard quantity per reel
1800 parts.
T
2
D
0
P
2
P
0
T
Marking
33
±
1.0
13
±
0.5mm
E
13
±
0.5
F
178
±
2
80
±
2
B
0
2.5
±
0.5
0.8
±
0.15
T
1
K
0
A
0
P
1
D
1
Tape dimensions in mm
Ordering Procedure
LRF3W
SC3
This product has two valid part numbers:
W
±0.3
12
P1
±0.1
8
P0
±0.1
4
P2
±0.05
2
D0
±0.1
1.5
D1
±0.2
1.5
E
±0.1
1.75
F
±0.05
5.5
A0
±0.1
3.61
B0
±0.1
6.96
K0
±0.1
1.17
T
±0.05
0.28
T1
nom
0.06
G
Ordering Procedure
European (Welwyn) Part Number:
Ordering Procedure
SC3-33RFI
(33 ohms ±1%, Pb-free)
This product has two
etc.
part numbers:
Specify type
S
reference
valid
as shown in this example of
SC3 at 33
Ω
1% on a reel of 1800 pieces:
C 3
-
3
3 R F
I
1
3
European (Welwyn) Part Number:
33R
4
F
(33 ohms
I
±1%, Pb-free)
Type
SC3
2
-
SC3-33RFI
Resistance value
C
S1
(IEC62 code)
Type 1
3
- 2 3
Value
3
2
R
F3 I
Tolerance
3
4
F = ±1%
G =
3
±2%
J = ±5%
Tolerance
F = ±1%
G = ±2%
J = ±5%
4
Packing
I = Standard
1800/reel
4
Packing
I = Standard
1800/reel
Tolerance
SC3 E24 = 3/4 characters
E96 = 3/4
2
characters
(IEC62 code)
1
R
Value
= ohms
Type
F
1%
K = kilohms
SC3 E24 = 3/4 characters
G
2%
E96 = 3/4 characters
J
5%
R = ohms
K = kilohms
Packing
USA (IRC) Part Number:
1800/reel Standard
SCW-SC3LF-33R0F
(33 ohms ±1%, Pb-free)
Tape
SC3
I
S
C
W
-
S
C
3
L
F
-
3
3
R
0
F
1
2
3
5
USA (IRC) Part Number: SCW-SC3LF-33R0F
(33 ohms
4
±1%, Pb-free)
S1 C
SCW
1
SCW
W2
SC3
2
SC3
-
C 3
L
F
-4 3
3
2
3
Termination
Value
S
3
R
0
5
F
1
Family Model
4 Tolerance
5
Note: packaging is tape & reel, 1800/reel
Family Model
Omit for SnPb 3 digits + multiplier F = ±1%
LF = Pb-free
G =
5
±2%
R = ohms for
3
4
values <100 ohms
J = ±5%
Termination
Value
Tolerance
Omit for SnPb 3 digits + multiplier
LF = Pb-free
R = ohms for
values <100 ohms
F = ±1%
G = ±2%
J = ±5%
General Note
TT Electronics reserves the right to
is tape & reel, 1800/reel
Note: packaging
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.
© 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
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
Issue A ·
04.10
03.02
09.17
86
W
T2
±0.15
1.45
Switching Power Supply Study Group
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