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CHARACTERISTICS
TGH Series
120 and 200 Watt SOT227Package
Thick Film Power
Heat Sink
Nickel-plated copper
Contacts
Nickel-plated copper
Substrate
Al203 (96%)
Molding Compound
High-performance epoxy, compliant to UL94-V0
Terminal Nuts
American standard 303 stainless steel
Resistance Range
0.1Ω to 1MΩ
Tolerance
±5%; other tolerances available on request
Temperature coefficient:
±250ppm (at +105°C ref. to +25°C)
Max. Working Voltage
500V (1000V, not to exceed rated wattage using
√
P*R
.)
Power Rating at 85°C
120W (see derating)
Partial Discharge
up to 2,000Vrms/80 pC
Voltage Proof
Dielectric Strength up to 4,000V DC against ground
Heat Resistance to Cooling Plate
R
th <0.35 K/W
Capacitance/Mass
45pF
Working Temp. Range
-55°C to +155°C
Max. Torque for Base Plate (static)
1.5 Nm
Max. Torque for Contacts (static)
1.3 Nm. M4 screws (not included)
Derating (thermal resistance)
2.86W/°K (0.35°K/W)
Derating
100
Percent Rated Power
Bottom of base plate Temperature, °C
60
20
0
175
80
40
25 100 125050 85
200
Rated Power, W
120
40
0
160
80
150
120
72
24
0
96
48
LHType:
1
4
1 2
Config.
1 Config. 2
Due to their non-inductive design, these resistors are
ideally suited for high-frequency and pulse-load applica-
tions. Available in 120- or 200-watt sizes, this resistor
is designed for direct mounting onto a heatsink. Popular
applications include variable speed drives, power sup-
plies, control devices, telecom, robotics, motor controls,
and other switching designs.
Best results can be reached by using a
thermal transfer compound with a heat
conductivity of better than 1W/mK
Configurations
(per package)
PERFORMANCE DATA
(continued)
Test Method ΔR
Moisture Resistance
MIL-Std-202, Method 106 (0.5% + 0.001W) max
Thermal shock
Mil-Std-202, Method 107, Cond F (0.3% + 0.01W) max
Terminal Strength
MIL-Std-202, Method 211, Cond A (pull test) 2.4N (0.2% = 0.01W) max
Vibration, High Frequency
MIL-Std-202, Method 204, Cond D (0.2% + 0.01W) max
Life
20 years (120,000 hours) Operating failure rate of 8.3 x 10-7 fail/hour.
Requirements to be achieved under the following conditions: T
amb=25°C, THS=70°C, Papplied=Pn
