Double-Sided
Chip Resistors
Chip Resistors
High Pulse Double-Sided
HDSC Series
DSC Series
Two parallel resistance
elements
Two parallel resistance
elements in a single chip
in
Excellent pulse withstand performance
a single chip
Enhanced working voltage
Excellent pulse withstand performance
Enhanced power rating
Laser trimmed up to 0.5% tolerance
Anti-sulphur
Enhanced working voltage
Enhanced power rating
Pb-free terminations
Resistors
Welwyn Components
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Electrical Data
0603
Power @7
@70°C
Power
0°C
2 sec
second
erload power @25°C
2
ond ov
overload power@25°C
Sho
Short
l
pulse
rformance
rt pu se pe
performance
Res
Resistance
nge
istance ra
range
Tolerance
Tolerance
LEV
LEV
TCR
TCR
Operating temperature
Operating temperature
Diel
Dielectric
t
withstand voltage
ectric wi hstand voltage
ohms
%
V
ohms
%
150
150
1R0 to 1M0
200
200
>10R:100
_
<10R:200
<10R:300 ≥10R:100
-55 to +1
-55 to +155
55
300
210
210
40
40
500
160
160
500
80
80
60
60
5
50
0
100
100
W
W
0.125
W
0.8
W
0805
0805
0.25
0.25
1.6
1.6
120
1206
6
0.33
0.33
2.1
2.1
See grap
See graphs
hs
1R
1R0 to 1M0
0 to 4M7
5,
ue : 1
10R to 1M: 0.5, All val
10,
s
20
, 5
400
400
500
500
2010
2010
0.75
0.75
4.7
4.7
2512
2512
1.5
1.5
9.4
9.4
V
75
ppm/°C
ppm/°C
°C
°C
V
V
°C/W
302
mm
2
30
The
Thermal
pedance
rmal Im
Impedance
°C/W
Pad
trace area for rated power* mm
2
& trace area for rated power*
Pad &
Values
Values
50
50
E24 preferred - other values to special order
E24 or 96 preferred - other values to special order
Physical Data
Physical Data
Dimensions (mm) & Weight
(mg)
Dimensions (mm) & Weight
(mg)
L
L
0603
0805
0805
1206
1206
2010
2010
2512
2512
W
W
*
Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
*Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
T max
max
T
A
A
B min
B min
0.6
0.9
0.9
1.7
1.7
3.0
3.0
4.4
4.4
C
C
0.3±0.15
0.3±0.1
0.3±0.1
0.4±0.15
0.4±0.15
0.6±0.25
0.6±0.25
0.6±0.25
0.6±0.25
Wt.
Wt.
2.7
5.0
5.0
10
10
42
42
65
65
A
B
L
A
W
C
T
1.6±0.1
2.0±0.15
0.8±0.1
1.25±0.15
0.6
0.7
0.3±0.15
0.3±0.15
2.0±0.15 1.25±0.15
3.2±0.2
1.6±0.2
3.2±0.2
1.6±0.2
5.1±0.3
2.5±0.2
2.5±0.2
5.1±0.3
6.5±0.3
3.2±0.2
6.5±0.3
3.2±0.2
0.7
0.7
0.8
0.7
0.3±0.15
0.4±0.2
0.4±0.2
0.6±0.3
0.8
0.8
0.6±0.3
0.6±0.3
0.8
0.6±0.3
Wrap-around terminations
(3 faces)
Construction
Construction
Thick film resistor material, overglaze and organic
protection are screen printed on
on
96% alumina substrate. Wrap-around terminations have an electro-
Thick film resistor material, overglaze and organic
protection are screen printed
a
a 96% alumina substrate. Wrap-around terminations
have an electroplated
and solderable
and solderable coating, this ensures
resistance properties and solderability.
and solderability.
plated nickel barrier
nickel barrier
coating; this ensures excellent ‘leach’
excellent ‘leach’ resistance properties
Marking
Marking
Components are not marked. Reels are marked
with type, value, tolerance, date code and
and quantity.
Components are not marked. Reels are marked
with type, value, tolerance, date code
quantity.
Solvent Resistance
The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits.
The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits.
General Note
General Note
Solvent Resistance
Welwyn Components reserves the right to make changes in product specification without notice or liability.
TT Electronics
subject to
right to make changes in
is considered accurate at time of
or liability.
All information is
reserves the
Welwyn’s own data and
product specification without notice
going to print.
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
© TT Electronics plc
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
www.ttelectronics.com/resistors
04. 08
10.19
High Pulse Double-Sided
High Resistors
Resistors
Chip Pulse Double-Sided
Chip Resistors
High Pulse Double-Sided Chip Resistors
HDSC Series
HDSC Series
HDSC Series
Performance Data
Performance Data
Performance Data
Load at rated power: 1000 hours at 70°C
Load at rated power: 1000 hours at 70°C
Load at rated power: 1000 hours at 70°C
Derating from rated power at 70°C
Derating from rated power at 70°C
Derating from rated power at 70°C
Overload: 6.25 x rated power for 2 seconds
Overload: 6.25 x rated power for 2 seconds
Overload: 6.25 x rated power for 2 seconds
Shelf life test: 12 months at room temperature
Shelf
Shelf life test: 12 months at room temperature
life test: 12 months at room temperature
Dry heat: 1000 hours at 155°C
Dry heat: 1000 hours at 155°C
Dry heat: 1000 hours at 155°C
Long term damp heat
Long term
heat
Long term damp
damp heat
Temperature rapid change
Temperature rapid change
Temperature rapid change
Resistance to sulphur-bearing gas
(AS version only):
Resistance to sulphur-bearing gas ASTM-B-809
Resistance to sulphur-bearing gas
(AS version only):
ASTM-B-809
ASTM-B-809
Resistance to solder
Resistance to solder heat
heat
Resistance to solder heat
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
ΔR%
Maximum
Maximum
Maximum
1
1
1
Zero at 155°C
Zero at 155°C
Zero at 155°C
1
1
1
0.1
0.1
0.1
1
1
1
1
1
1
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Typical
Typical
Typical
0.25
0.25
0.25
0.1
0.1
0.02
0.02
0.2
0.2
0.25
0.25
0.05
0.05
0.05
0.05
0.1
0.02
0.2
0.25
0.05
0.05
Lightning Surge
tested in
Resistors are
Lightning
tested in
with IEC 60 115-
Resistors are
Surge
accordance
Pulse Performance Data
Pulse Performance Data
Lightning Surge
Pulse Performance Data
0.05
0.05
0.05
Resistors are tested in
1.2/50µs and
1 using
IEC 60
accordance with
both
115-1 using both
10/700µs pulse shapes.
both
accordance with IEC 60 115-1shapes. 10 pulses
1.2/50µs and 10/700µs pulse using
10
pulses are applied. The limit
1.2/50µs and 10/700µs acceptance is a shift in
are applied. The limit ofpulse shapes. 10 pulses
of acceptance is a shift in
are applied. The limit of acceptance is a shift in
resistance of less than 1% from the initial value.
resistance of less than 1% from
resistance of less than 1% from the initial value.
the initial value
GRAPHS
GRAPHS
UPDATED
UPDATED
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
General Note
General Note
© TT Electronics plc
© TT Electronics plc
© TT Electronics plc
All Electronics reserves the right to make changes in productconsidered accurate at time of going to print.
TT information is subject to TT Electronics’ own data and is specification without notice or liability.
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.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
BI Technologies IRC
IRC Welwyn
Welwyn
BI Technologies
www.ttelectronics.com/resistors
06.18
06.18
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
10.19
High Pulse Double-Sided
Resistors
Chip Resistors
High Pulse Double-Sided Chip Resistors
High Pulse Double-Sided
HDSC Series
HDSC
Resistors
Chip
Series
HDSC Series
Single Pulse
Single Pulse
The single
impulse graph is
The single
impulse graph is the
the result of 50 impulses of
result of 50 impulses of rectangular
Single
applied at one-minute
Pulse
rectangular shape applied
shape
at one-minute intervals.
the
The single impulse graph is
The
intervals. The limit of acceptance
limit of
50 impulses of
was a shift
result of
acceptance
rectangular
was a shift in resistance of less
in resistance
at one-minute
1%
of less than
shape applied
than 1%
initial value.
from the
from the initial value.
intervals. The limit of acceptance
was a shift in resistance of less
than 1% from the initial value.
GRAPHS
UPDATED
GRAPHS
UPDATED
Continuous Load Due
to Repetitive Pulses
Continuous Load Due
The continuous load graph
to Repetitive Pulses
Continuous Load Due
obtained by applying repetitive
to Repetitive Pulses
pulse
rectangular pulses where the
The continuous load graph was
The continuous load graph was
period was adjusted so that
was obtained by applying
the
obtained by
rectangular pulses
repetitive
applying repetitivethe
average power dissipated in
rectangular pulses where the pulse
where the pulse period was
resistor was equal to its rated power
adjusted
Again the limit of acceptance
period was
so that the
that the
adjusted so
average
at 70°C.
power
power dissipated in
average
dissipated in the
the
was a shift in resistance of
rated
resistor was equal to its
less than
resistor was equal to its rated power
1% from
70°C. Again the
power at
the initial value.
limit
at 70°C. Again the limit of acceptance
of acceptance was a shift in
was a shift in
of less than
less
from
resistance
resistance of
1%
than
the initial value..
1% from the initial value.
General Note
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
General Note
TT
© TT Electronics plc
right to make changes in product specification without notice or liability.
Electronics reserves the
© TT Electronics plc
TT Electronics reserves the right
Electronics’ own data
product specification without notice
of going to print.
All information is subject to TT
to make changes in
and is considered accurate at time
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
BI Technologies IRC Welwyn
BI Technologies
www.ttelectronics.com/resistors
IRC Welwyn
06.18
www.ttelectronics.com/resistors
10.19
www.ttelectronics.com/resistors
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
Resistors
High Pulse Double-Sided
High Pulse Double-Sided Chip Resistors
Chip Resistors
HDSC Series
HDSC Series
Thermal Performance
Data
Thermal Performance
Data
Packaging
Packaging
0603,
0805 and 1206 resistors are supplied on 8mm
carrier
tape and 2010 and 2512 resistors are
are supplied on 12
carrier tape,
tape,
0805 and 1206 resistors are supplied on 8mm
carrier
tape and 2010 and 2512 resistors
supplied on 12 mm
mm carrier
all on 7
7 inch reels
per
per IEC 286-3.
all on
inch reels as
as
IEC 286-3.
Application Notes
Application Notes
of a printed circuit
rectangular shape and the small dimen-
H
DSC resistors are ideally suited for
for handling
automatic
HDSC resistors are ideally suited
handling by
by automatic methods due to their
board and wire-leaded components
sional tolerances. Electrical connection to a ceramic
applied on the
circuit board can be made by
with
methods due to their rectangular shape and the small
substrate or to a printed
other side.
H
DSC is compatible
reflow or wave
soldering
tolerances. Electrical connection
dimensional
of wrap-around terminations.
to a ceramic
typical Pb-free soldering materials and temperature
substrate or to a printed circuit board can be made by reflow
profiles.
Wrap-around terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the
or wave
can be immersed in the solder bath for 30 seconds at 260°C. This enables the resistor to be mounted on one
H
DSC resistors themselves can operate at a maximum
HDSC
soldering of wrap-around terminations.
temperature
other side. HDSC is compatible with typical Pb-
side of a printed circuit board and wire-leaded components applied on the
of 155°C. For soldered resistors, the joint
free soldering materials
provide good leach properties and
Wrap-around terminations
and temperature profiles.
temperature should not exceed 110°C. This condition is met
ensure reliable contact. Due to the robust construction, the
when the stated power levels at 70°C and recommended pad
HDSC resistors themselves can operate
for
a maximum temperature of 155°C. For
used. Pad
resistors, the joint temperature
at
30 seconds
soldered
and trace area is defined as
and trace areas are
H
DSC can be immersed in the solder bath
should not exceed 110°C. This condition is met when the stated power levels at 70°C and recommended pad and trace
the total area of the solder pad plus all
at
areas are used. Pad and trace area
be
defined as
on one
area of the solder pad plus all copper trace
copper trace
squares of
260°C. This enables the resistor to
is
mounted
the total
within two
within two
squares
of copper
of
used.
side
edge of the solder pad. Allowance should be made if smaller areas
of the edge
are
the solder pad. Allowance should be made
the
if smaller areas of copper are used.
Ordering Procedure
Ordering Procedure
H
Example:
HDSC2512-10KJT18
(HDSC2512, 10
±5%, Pb-free)
Example: HDSC2512-10KJT18 (HDSC2512, 10 kilohms
kilohms
±5%,
Pb-free)
H D S C
1
D
S
C
2
2
5
5
1
1
2
Size
2
2
1
2
2
-
-
1
1
0
2
3
3
0
3
K
K
J
4
J
T
T
5
1
1
5
8
8
4
1
1
Type
HDSC
HDSC
0805
0805
1206
1206
2010
2010
2512
2512
3
Value
Type
0603
E24 = 3/4 characters
Size
5
Termination & Packing
J = ±5%
Standard Pb-free finish
R = ohms
J = ±5%
0805
Standard Pb-free finish
K = ±10%
E24
kilohms
K =
= 3/4 characters
±10%
1206
0805
R = ohms
M = ±20%
K =
T3
M = megohms
3000/reel standard
K = kilohms
M = ±20%
2010
T3
1206
3000/reel standard
M = megohms
T18
2512
1800/reel standard
2010
T1 All sizes
T18
1000/reel available
2512
1800/reel standard
PB
All sizes Standard quantities as for Pb-free
4
Tolerance
4
Tolerance
5
Termination & Packing
T1
SnPb
sizes
All
finish
1000/reel available
PB
General Note
General Note
SnPb finish
All sizes Standard quantities as for Pb-free
TT Electronics reserves the right
make changes in
in product specification without notice or liability.
TT Electronics reserves the right to
to make changes
product specification without notice or liability.
All information
subject to TT Electronics’ own data and is
is considered accurate
time of going to
to print.
All information is
is subject to TT Electronics’ own data and
considered accurate at
at time of going
print.
BI Technologies IRC Welwyn
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
© TT Electronics plc
© TT Electronics plc
10.19
06.18
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