Resistors
High Value
High Value
Surface
High Value Surface
High Value Surface
Mounted Resistors
High Value Surface
Mounted Resistors
Mounted Resistors
Mounted Resistors
HR Series
HR Series
HR Series
HR Series
Welwyn Components
Welwyn Components
Welwyn Components
Welwyn Components
•
Custom designs / sizes available
•
Custom designs / sizes available
•
Custom
HR Series
designs / sizes available
•
Custom designs / sizes
•
Resistance range to 50G ohms
available
•
Resistance range to
available
ohms
•
Resistance range to 50G
50G
Custom designs / sizes
50G ohms
•
Resistance range to
ohms
•
Terminations available for wire bonding
•
Terminations available for wire
wire bonding
•
Terminations available for wire bonding
Resistance range to 50G ohms
for
bonding
•
Terminations available
or soldering
•
•
•
or soldering
or soldering
Terminations available for wire bonding or soldering
or soldering
Low voltage coefficient of resistance
Low voltage coefficient of resistance
Low voltage coefficient of resistance
resistance
Low voltage coefficient of resistance
•
Low voltage coefficient of
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Electrical Data
Electrical Data
Electrical Data
Power Rating
Power Rating
Power Rating
Power Rating
Power Rating
value of these
these devices is such
power dissipation is always small. The rating is therefore determined by
The high resistance
The high resistance value of
devices is such that
that power dissipation is always small. The rating is therefore determined by
The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by
The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by
The high resistance value of as shown in the such that power dissipation is always small. The rating is therefore determined by
these devices is
voltage
voltage considerations
as shown in the
in the table below.
only, as shown
voltage considerations only, as shown in the table below.
voltage considerations only, as shown in the table below.
considerations only,
table below.
voltage considerations only,
table below.
0503
0603
0805
1005
1206
Notes
1005
1206
Notes
0503
0503
0805
0805
1005
1206
Notes
0503
0805
1005
1206
Notes
Measured
0503
0805
1005
1206
Notes
0503
0805
1005
1206
Notes
Resistance
s
range*
range*
Re s
ng
ce
s
Mt
10
t
M
0
5
100M to 50G
M
s
a
re
re
a
t 1
v
v
t
l
Resistance r
i
a
tan
e*
o
ohms
hm
10M t
10
20G
o 20G
to 20G
hms
o
10M to 20G
10M
100M
0
o 5
to
G
0G
Mea
e
u
su
d
d
t
a
10
0
ol
o
s
ts
Resistance range*
ohms
100M to 50G
Measured at 10 volts
at 15volts
Resistance range*
10M to 20G
100M to 50G
Measured at 10 volts
Resistance range
element voltage
ohms
volts
0M to 20G
*
ohms
1
o
100M to
150
50G
Measured at 10 volts
200
Limiting
Limiting
voltage
element voltage
volts
50
50
100
100
150
200
Limiting element
voltage
volts
50
75
100
150
200
Limiting element
voltage
volts
50
100
150
200
Limiting element voltage
element
volts
50
100
150
200
Limiting
Ambient temperature rang
volts
50
100
150
200
e
°C
°C
°C
-55 t
15
+ 155
to +155
o
5
-55
Ambient temperature range
-55 to + 155
Ambient temperature
ange
range
Ambient temperature range
°C
-55 to + 155
Ambient temperature range
°C
-55 to +
Ambient
T
te
R
perature r
m
°C
pm/°C
C
p
0 to -2500
0
0
o
-5
20
to + 155 to
0
1
o
0
1500
t
005
00
-
0 o
M a re
Measured
t1 v l
TCR
ppm/°C
0 to -2500
0 to -2000
0 to -
t
5
-
0
0 to -10
10
Mea
e
ured at 10 vo ts
+250
-
t
to
-
00
00
+250
e
to
u
su
d
d
t
a
10
0
oll
o
s
ts
TCR
p
ppm/°C
0 to -2500
0 to -1
0 to -1000
Measured at 10 volts
TCR
R
+250
-
to
to 500M:10
0 to -2000
-2500
+250 to
to 1G:5,10
500
1G to 50G:25,
000
-2000
-1500
TCR
ppm/°C
pm/°C
0 to -2500
0 to -2000
0 to -1500
0 to -1000
Measured at 10 volts
s re a
TC
25
0 to -2
100M
0
0 to 1
M a
v t
Resistance tolerance
ppm/°C 10M to 500M:10
%
0
10M
00
>
-1500
-1000
s
at 15volts
Resistance tolerance
% 10M to 500M:10
100M to 1G:5,10 > 1G to 50G:25, 50
50
Resistance tolerance
% 10M to 500M:10
100M to 1G:5,10 > 1G to 50G:25, 50
Resistance tolerance
%
to
100M to 1G:5,10 > 1G to 50G:25, 50
Resistance tolerance
% 10M to 500M:10
50
10M to 1G0:5, 10
100M to 1G:5,10 > 1G to 50G:25, 50
>500M : 25,
10M to 500M:10
Resistance tolerance
%
>500M : 25, 50
100M to 1G: 5, 10 >1G to 50G: 25, 50
>500M : 25, 50
>500M : 25, 50
>500M: 25, 50
>1G0: 10, 25, 50
>500M : 25, 50
*Higher values available, consult factory for details
*Higher values available, consult factory for details
*Higher values available, consult factory for details
*Higher values available, consult factory for details
*Higher values available, consult factory for details
Anti-sulphur version available - consult factory
Physical Data
Physical Data
Physical Data
Physical Data
Weight (g)
Dimensions (mm) &
Dimensions (mm) & Weight (g)
Dimensions (mm) & Weight (mg)
Dimensions (mm) & Weight (g)
Dimensions (mm) & Weight (g)
†
†
†
†
This dimension determines the number of conductors which may pass under the surface mounted device.
This dimension determines the number of conductors which may pass under the surface mounted device.
This dimension determines the number of conductors which may pass under the surface mounted device.
This dimension determines the number of conductors which may pass under the surface mounted device.
Wrap around
Planar
Dimensions (mm) & Weight (g)
Wrap around
Planar
Wrap around
B
†
Wrap around
Planar
C
L
W
T max
T max.
A
Wt
Wrap around
1
Planar
C
Style
Style
L
W
Wt
Wrap around
†
Planar
A
T
A
Not available
B
Style
W
T max.
0.5
A
B
†
C
± 0.1
Wt
B
T
Style
L
W
T max.
A
B
†
C
Wt
0503
L
1.25 ± 0.2 0.63 ± 0.15
0.2
0.005
A
L
W
T
Style
L
W
T max.
A
B
†
C
Wt
A
T
Style
max.
A
Not available
B
C
Wt
1.5
A
B
0503
1.25 L
2.0
0.63 W
1.25
T
0.5
1.25±0.1
0.63±.1
A
0503
0805
± 0.2
± 0.3
± 0.15
± 0.2
0.5
0.6
Not
± 0.15
available
0.9min
0.2
0.20±0.1
0.005
± 0.1
0.1
0.005
Wrap-around terminations
W
A
0.3
available
0.3 ±
0.009
A LB
0503
1.25 ± 0.2 0.63 ± 0.15
0.5
Not available
0.2 ± 0.1
B
LB
(3
A
faces)
W
0503
1.25 ± 0.2 0.63 ± 0.15
0.5
Not available
0.2 ± 0.1
0.005
L
W
0503
0.5
Not
0.2 ± 0.1
0.005
A
L
W
Wrap-around terminations
0603
1.25 ± 0.2 0.63 ± 0.15
1.6±0.1
0.8±0.1
0.55
0.3±0.15
0.6 min
0.3
0.3±0.15
0.009
2.2
A
0805
1005
± 0.3
±
1.25 ±
1.25 ± 0.2
0.6
0.7
0.3 ± 0.15
Not available
2.0 ± 0.3 1.25 ± 0.2
0.9min
± 0.1
0.15
0.009
Wrap-around terminations
(3 faces)
2.5 0.3
0.015
0805
2.0 ± 0.3 1.25 ± 0.2
0.6
0.3 ± 0.15
0.9min
0.3
0.4 ±
± 0.1
Alternative styles for
Wrap-around terminations
(3 faces)
Wrap-around terminations
0805
2.0 ± 0.3 1.25 ± 0.2
0.6
0.3 ± 0.15
0.9min
0.3 ± 0.1
0.009
0805
2.0
0.2
0.6
0.3 ± 0.15
0.9min
0.3 ± 0.1
(3
mounting
surface
faces)
0805
2.0±0.15 1.25±0.15
0.6
0.3±0.1
0.009
4.7
(3 faces)
1005
1206
± 0.3
±
1.25 ± 0.2
± 0.2
0.7
0.7
0.3±0.15
0.2
0.9
1.7min
0.4 ± 0.15
0.15
0.015
2.5 ± 0.3 1.25 ± 0.2
Not available
min
0.4 ± 0.15
resistors
3.2 0.4
1.6
0.4 ±
0.4 ±
0.020
Alternative styles for
1005
2.5 ± 0.3 1.25 ± 0.2
0.7
Not available
0.015
Alternative styles for
1005
2.5 ± 0.3 1.25 ± 0.2
0.7
Not available
0.4 ± 0.15
0.015
surface mountingfor
Alternative styles for
1005
2.5
0.7
Not available
0.4 ± 0.15
0.015
1005
2.5±0.2
1.25±0.2
0.7
Not available
0.4±0.15
0.020
6.5
Alternative styles
surface mounting
1206
†
3.2 ± 0.4
0.7
0.4 ± 0.2
0.4 ± 0.15
surface mounting
surface
resistors
1206
This dimension
1.6 ± 0.2
3.2 ± 0.4
1.6 ± 0.2
0.4
conductors
1.7min
may pass under the surface
resistorsmounting
± 0.2
1.7min
0.4 ± 0.15
0.020
determines the
0.7
number of
0.4±0.2
which
mounted device.
1206
3.2 ± 0.4
1.6 ± 0.2
0.7
0.4 ± 0.2
1.7min
0.4 ± 0.15
0.020
1206
3.2±0.2
1.6±0.2
0.7
1.7 min
0.4 ± 0.15
0.4±0.15
0.020
8.5
resistors
resistors
1206
3.2 ± 0.4
1.6 ± 0.2
0.7
0.4 ± 0.2
1.7min
T
C
C
C
C
C
C
T
C
C
C
C T
T
W
T
T
L
L
W
L
W
L
W
Planar terminations
Planar terminations
Planar terminations
Planar terminations
L
Planar terminations
W
Construction
Terminations
The resistor
Planar (or single-sided) termination is gold and suitable for
Construction
material is screen printed onto a 96% alumina
Terminations
Construction
and covered with a protection comprising of a glaze
Terminations
wrap around is suitable for soldering.
Construction
Terminations
Construction
Terminations
substrate
wire-bonding;
The resistor material is screen printed onto a 96% alumina
Planar (or single-sided) termination is gold and suitable for
The resistor material is screen printed onto a 96% alumina
Planar (or single-sided) termination is gold and suitable for
The resistor material is
organic coating.
onto
construction gives an
Planar (or single-sided) termination is gold and suitable for
followed by an
screen printed onto a 96% alumina
The resistor material is with a protection comprising of a glaze
screen printed
This
a 96% alumina
Planar (or single-sided) termination is gold soldering.
and suitable for
substrate and covered with a protection comprising of a glaze
wire-bonding; wrap around is suitable for soldering.
substrate and covered with a protection comprising of a glaze
wire-bonding; wrap around is suitable for soldering.
substrate and covered with a protection comprising of a glaze
wire-bonding; wrap around is suitable for soldering.
insulated device.
Solderability
around is suitable for
substrate and covered
wire-bonding; wrap
followed by an organic coating. This construction gives an
followed by an organic coating. This construction gives an
followed by an organic coating. This construction gives an
Wrap-around
followed
insulated by an organic coating. This construction gives an
Solderability
terminations on HR resistors have good ‘leach’
insulated device.
device.
Solderability
resistance properties. They will withstand immersion in solder
Marking
insulated device.
Solderability
insulated device.
Solderability
Wrap-around terminations on HR resistors have good ‘leach’
Wrap-around
for 30 seconds.
HR resistors have good ‘leach’
at 260°C
terminations on
All relevant information is recorded on the primary package
Wrap-around terminations on HR resistors have good ‘leach’
Wrap-around terminations willHR resistorsimmersion in solder
on
have good ‘leach’
resistance properties. They will withstand immersion in solder
Marking
resistance properties. They will withstand immersion in solder
Marking
or reel.
resistance properties. They
withstand
Marking
resistance properties. They will withstand immersion in solder
Marking
All relevant information
All relevant information
All relevant information
All reel.
relevant information
or reel.
or reel.
or reel.
or
General Note
is
is
is
is
recorded
recorded
recorded
recorded
on
on
on
on
the
the
the
the
primary
primary
primary
primary
package
package
package
package
at
at
at
at
260°C
260°C
260°C
260°C
for
for
for
for
30
30
30
30
seconds.
seconds.
seconds.
seconds.
General Note
General Note
General Note
General Note
Note
Welwyn Components reserves the right to
Limited
· Bedlington, Northumberland NE22 7AA, UK
or liability.
General
© Welwyn Components
make changes in product specification without notice
Welwyn Components reserves the right to make changes in product specification
or liability.
TT Electronics reserves the right to make changes in product specification without notice
without notice or liability.
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.
20
20
20
20
Welwyn Components
+44
to Welwyn’s own
·
make and is considered accurate
·
at time
info@welwyn-tt.com · Website: www.welwyn-tt.com
in
1670 829465 Email:
All information is subject
(0) 1670
right to data changes
(0)
product specification without notice or liability.
Welwyn Components reserves the
822181
make and is considered accurate at time of going to print.
Telephone:
reserves the right to
Facsimile: +44
All information is subject to Welwyn’s own data 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.
All information is
is subject to Welwyn’s own data and is considered
accurate at time of going to
to print.
subject to TT Electronics’ own data and is considered
accurate at time of going to print.
All information
of going
print.
©
20
Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© Welwyn Components
· Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© TT Electronics plc
822181
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
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
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
A
Issue B · 03.02
subsidiary of
A subsidiary of
TTA subsidiaryplc
electronics of
A subsidiaryplc
of
TT electronics plc
www.ttelectronics.com/resistors
TT electronics plc
TT electronics
Issue B · 03.02
Issue B · 03.02
Issue B · 03.02
Issue B · 03.02
05.21
High Value Surface
High Value Surface Mounted Resistors
HR Series
HR Series
Mounted Resistors
Performance Data
Welwyn Components
Load (1000 hrs @70°C)
Load at rated power: 1000 hours at 70°C
Short term overload ( 6.25x Pr or 2.5x LEV for 5s)
Overload
Shelf life (12 months)
Shelf life: 12 months at room temperature
Temperature cycle (5 cycles, -55/+155°C)
Temperature rapid change
Resistance to solder heat (260±5°C for 10±1s)
Change on Wave Soldering
Voltage proof
Voltage proof
Voltage coefficient of resistance (10V to 25V)
Voltage coefficient of resistance (10V - 25V)
∆
R%
∆
R%
∆
R%
∆
R%
∆
R%
volts
%/V
0805
1005
1206
Maximum
Typical
Maximum
Typical
±ΔR%
2
1
2
1
±ΔR%
1
0.2
1
0.2
±ΔR%
2
1
2
1
±ΔR%
1
0.3
1
0.3
±ΔR%
1
0.5
1
0.5
volts
0503:100 0603: 300 0805 to 1206:500
0503 : 100
0805 to 1206 : 500
%/V
0603
1
0805
0
1005
.8
0
1206
.2
2
1
0.8
0.2
0.4
0.3
0.05
0.7
0.4
0.3
0.05
Application Notes
Mounting
This chip resistor is ideally suited for handling by automatic
methods due to its rectangular shape and the small
dimensional tolerances. Electrical connection to a ceramic
substrate or to a printed circuit board can be made by wire
bonding to planar terminations or by reflow soldering of
wrap-around terminations. The ‘F’ terminations provide good
leach properties and ensure reliable contact. Due to the
robust construction the resistor chip can be immersed in the
solder bath for 30 seconds at 260°C. This enables the resistor
to be mounted on one side of a printed circuit and wire-
leaded components on the other side. The resistor must be
kept dry during use to avoid leakage. The presence of
moisture will not damage the resistor in any way.
Packaging
Resistor chips are supplied taped and reeled on standard
8mm tape to IEC 286-3.
Quantity per reel 3000 max.
Planar Terminations
Resistor chips are supplied in waffle packs.
Ordering Procedure
Ordering Procedure
Type
Size
H
1
R
1
2
2
0
6
F
3
Example: HR1206 with solderable wraparound terminations at 10 gigohms and 50% tolerance
Example: HR1206F-10GYI
(1206 with solderable wraparound terminations, 10 gigohms ±50%, Pb-free)
on a reel of up to 3000 pieces -
HR1206F
–
10GY
I
-
1
0
4
G
Y
5
5
Tolerance
J = ±5%
K = ±10%
5 = ±25%
Y = ±50%
I
6
6
Termination & Packing
Pb-free solderable (RoHS)
0603F
5000/reel
I
0805F,1206F 3000/reel
SnPb solderable
0603F
5000/reel
PB
0805F,1206F 3000/reel
Gold pad planar
I
xxxxG
Waffle
1
2
Termination
3
4
F
Type Size
Solderable wraparound
Termination
0805, 1206 only
Value
G Gold pad planar
All sizes
HR 0503
E24 or E96
0603,
Solderable 3/4 characters
0603 F 0805,
Value (use IEC62 code)
wraparound
1206
0805
M = megohms
1005
All
Gold
G = gigohms
Tolerance (use IEC62 code)
pad
G sizes
planar
J
5%
1206
5
25%
K 10%
Y
50%
Packing
I
Tape
Waffle
0805F, 1206F
G Termination
Up to 3000/reel
Standard
General Note
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
TT Electronics reserves the right to make changes in product specification without notice or liability.
BI Technologies IRC Welwyn
Issue B · 03.02
www.ttelectronics.com/resistors
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
05.21
21
