High Value Surface
Mounted Resistors
HR Series
·
·
·
·
Custom designs / sizes available
Resistance range to 50G ohms
Terminations available for wire bonding or soldering
Low voltage coefficient of resistance
Electrical Data
Power Rating
The high resistance value of these devices is such that power dissipation is always small. The rating is therefore determined by
voltage considerations only, as shown in the table below.
0503
10M to 20G
50
0805
1005
100M to 50G
150
1206
200
Notes
Resistance range*
Limiting element voltage
Ambient temperature range
TCR
ohms
volts
°C
Measured at 10 volts
100
-55 to + 155
ppm/°C
%
0 to -2500
0 to -2000
0 to -1500
0 to -1000
Measured at 10 volts
Resistance tolerance
10M to 500M:10
>500M : 25, 50
100M to 1G:5,10 > 1G to 50G:25, 50
*Higher values available, consult factory for details
Physical Data
Dimensions (mm) & Weight (g)
Wrap around
B†
Not available
0.3 0.15 0.9min
Not available
0.4 0.2 1.7min
Planar
T
Style
0503
0805
1005
1206
L
W
T max.
0.5
A
C
Wt
C
A
B
C
T
1.25 0.2 0.63 0.15
2.0 0.3 1.25 0.2
2.5 0.3 1.25 0.2
0.2 0.1
0.3 0.1
0.4 0.15
0.4 0.15
0.005
0.009
0.015
0.020
L
W
A
Wrap-around terminations
(3 faces)
0.6
L
W
0.7
Alternative styles for
surface mounting
resistors
Planar terminations
3.2 0.4
1.6 0.2
0.7
†This dimension determines the number of conductors which may pass under the surface mounted device.
Construction
Terminations
Planar (or single-sided) termination is gold and suitable for
wire-bonding; wrap around is suitable for soldering.
The resistor material is screen printed onto a 96% alumina
substrate and covered with a protection comprising of a glaze
followed by an organic coating. This construction gives an
insulated device.
Solderability
Wrap-around terminations on HR resistors have good ‘leach’
resistance properties. They will withstand immersion in solder
at 260°C for 30 seconds.
Marking
All relevant information is recorded on the primary package
or reel.
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.
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