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TGHG Series
Precision Current Sense Resistors
Heat Sink
Nickel-plated copper
Terminal Nuts
American standard 303 stainless steel
Standard Resistance Values
0.5mΩ-1Ω, others on request
Resistance Tolerances
0.5% (0.0005 thru 0.022Ω), 1%, 5%
Temperature Coefficient
referenced to 25°C, ∆R taken at -15°C and +105°C,
<60ppm/°C; <500ppm/°C for resistance range 27mΩ-49mΩ)
Power Rating
100W at 70°C case temperature; 50Amp permanent (higher
on request)
Dielectric strength
1000VDC, higher value on request
Heat Resistance
R
th <0.56K/W
Protection class
acc. to IEC 950/CSA22.2 950/M -89 and EN 60950.88:2
Working Temp. Range
-55°C to +155°C
Max. Torque for Contacts
1.3Nm 8 (static)
Max Torque for Base Plate
1.5 Nm (static)
Derating
100
Percent Rated Power
Bottom of base plate Temperature, °C
60
20
0
175
80
40
25 100 125050 70
Rated Power, W
150
100
60
20
0
80
40
GType:
FEATURES
• Resistance values beginning at 0.5mΩ
• Non Inductive
• Four terminal Kelvin connection
• SOT 227 Package
• Four terminals to isolate measurement path
from current flow path
• Accuracy in a high power package
Best results can be reached by
using a thermal transfer compound
with a heat conductivity of better
than 1W/mK
THIS PRODUCT IS DESIGNED FOR
USE WITH PROPER HEATSINKING.
Maximum base plate temperature of the resistor must
be monitored and kept within specified limits to es-
tablish the power rating. Best technique is to attach a
thermocouple to the side of the base plate of the resis-
tor. Temperature of plastic housing or heat sink cannot
be used to establish rating of the resistor.
The TGHG Series uses
state of the art technol-
ogy to provide highly
reliable, non inductive
performance. This resis-
tor is ideal for many
current monitoring and
controls applications.
CHARACTERISTICS
(continued)
