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
Power
0° C
Power @7
@70°C
2
ond ov
overload power@25°C
2 sec
second
erload power @25° C
Sho
Short
l
pulse
rformance
rt pu se pe
performance
Res
Resistance
nge
istance ra
range
W
W
ohms
0603
W
0.125
W
0.8
ohms
0805
0805
0.25
0.25
1.6
1.6
0R5 to 1M0
1206
6
120
0.33
0.33
2.1
2.1
2010
2010
0.75
0.75
4.7
4.7
2512
2512
1.5
1.5
9.4
9.4
See grap
See graphs
hs
0R5 to 1M0
to 4M7
0R5
500
500
Tolerance
%
Tolerance
%
LEV
V
LEV
V
75
TCR
ppm/°C
TCR
ppm/° C
Operating temperature
°C
Operating temperature
°C
Dielectric withstand voltage
V
Dielectric withstand voltage
V
Thermal Impedance
°C/W
Thermal Impedance
° C/W
302
mm
2
Pad & trace area for rated power*
Pad & trace area for rated power* mm
2
30
Values
Values
Physical
Data
Physical
Data
L
L
0603
0805
0805
1206
1206
2010
2010
2512
2512
*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
5, 10, 20
10R to 1M: 0.5, All values: 1, 5
150
200
400
200
400
150
<10R:300 ≥10R:100
_
<10R:200 >10R:100
-55 to +155
-55 to +155
300
500
500
210
160
80
160
80
210
40
50
60
50
60
40
E24 preferred - other values to special order
E24 or 96 preferred - other values to special order
50
50
100
100
Dimensions (mm) & Weight
(mg)
Dimensions (mm) & Weight
(mg)
W
W
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
Chip Pulse Double-Sided
High Pulse Double-Sided Chip Resistors
Chip Resistors
HDSC Series
Series
HDSC
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 heat
Resistance to solder 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
0.05
0.05
0.05
Lightning Surge
tested in
Resistors are
Lightning
tested in
with IEC 60 115-
Resistors are
Surge
accordance
Pulse Performance Data
Lightning Surge
Pulse Performance Data
Pulse Performance Data
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
High Pulse Double-Sided Chip Resistors
Chip Resistors
HDSC Series
High Pulse Double-Sided
HDSC Series
Chip Resistors
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.
High Pulse Double-Sided
High Pulse
Chip Resistors
Double-Sided 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 supplied on 12 mm carrier tape,
all on 7
and 1206
as per IEC
are supplied on 8mm carrier tape and 2010 and 2512 resistors are supplied on 12 mm carrier tape,
0805
inch reels
resistors
286-3.
all on 7 inch reels as per IEC 286-3.
of a printed circuit board and wire-leaded components
H
DSC resistors are ideally suited for handling by automatic
HDSC resistors are
rectangular shape and the
by automatic methods due to their rectangular shape and the
with
applied on the other side.
H
DSC is compatible
small
methods due to their
ideally suited for handling
small
dimensional tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow or
dimensional tolerances. Electrical connection to a ceramic
typical Pb-free soldering materials and temperature
wave soldering of wrap-around terminations.
Application Notes
Application Notes
substrate or to a printed circuit board can be made by reflow
profiles.
or wave soldering of wrap-around terminations.
properties and
H
DSC resistors themselves can operate at a maximum
Wrap-around terminations provide good leach
ensure reliable contact. Due to the robust construction, the
HDSC can be immersed in the solder bath for 30 seconds at 260°C. This enables the resistor to be mounted on one
temperature of 155°C. For soldered resistors, the joint
side of a printed circuit board and wire-leaded components
temperature
other
not
HDSC
110°C. This condition is met
Wrap-around terminations provide good leach properties and
applied on the
should
side.
exceed
is compatible with typical Pb-
free
reliable contact. Due to
temperature profiles.
ensure
soldering materials and
the robust construction, the
when the stated power levels at 70°C and recommended pad
and trace areas are
soldered
and trace area is defined as
H
DSC can be immersed in the
can operate
for
a maximum temperature of 155°C. For
used. Pad
resistors, the joint temperature
HDSC resistors themselves
solder bath
at
30 seconds
the total
levels
the solder pad plus all copper trace
trace
at
should not exceed 110°C. This condition is met
on one
the stated power
area of
at 70°C and recommended pad and
within two
260°C. This enables the resistor to be mounted
when
squares of the edge of
all
solder
trace within two squares of
areas are used. Pad and trace area is defined as the total area of the solder pad plus
the
copper
pad. Allowance should be made
side
if
areas
areas of copper are
the edge of the solder pad. Allowance should be made if smaller
smaller
of copper are used.
used.
Ordering Procedure
Ordering Procedure
Example:
HDSC2512-10KJT18
(HDSC2512, 10
±5%, Pb-free)
Example: HDSC2512-10KJT18 (HDSC2512, 10 kilohms
kilohms
±5%,
Pb-free)
H
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
TT Electronics reserves the right to make changes in product specification without notice or liability.
© TT Electronics plc
© TT Electronics plc
SnPb finish
All sizes Standard quantities as for Pb-free
TT Electronics reserves
to
right to make
own data and is considered accurate at time of
or liability.
All information is subject
the
TT Electronics’
changes in 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.
BI Technologies IRC Welwyn
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
06.18
10.19
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