RES-TGHG Datasheet, PDF (1/2 Pages) Ohmite Mfg. Co. – Four terminal Kelvin connection

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 0.5mΩ
• 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
c h a r a c t e r i st i c s
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 Rth <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)
Maximum Cont. Amperage 200 amps depending on ohmic value; only available in 10%
Derating
Type: G
100
100
80
80
60
60
40
40
20
20
0
0
0 25 50 70 100 125 150 175
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
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 [phone] • www.ohmite.com • [e-mail]
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