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TGHG Series
Precision Current Sense Resistors
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.
F E AT U R E S
? Resistance values beginning at 0.5m Ω
? 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
CHARACTERISTICS
Heat Sink Nickel-plated copper
Derating
Terminal Nuts American standard 303 stainless steel
Standard Resistance Values 0.5m Ω -1 Ω , others on request
Resistance Tolerances 0.5% (0.005 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 27m Ω -49m Ω )
Power Rating 100W at 70°C case temperature; 50Amp permanent (higher
100
80
60
40
20
Type: G
100
80
60
40
20
on request)
0
0
25
50 70
100 125 150 175
0
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
Bottom of base plate Temperature, ° C
Best results can be reached by
using a thermal transfer compound
with a heat conductivity of better
than 1W/mK
Max. Torque for Contacts 1.3Nm 8 (static)
Max Torque for Base Plate 1.5 Nm (static)
Maximum Cont. Amperage 200 amps depending on ohmic value; only available in 10%
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.
1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM
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