tGh series
120 and 200 Watt SOT227Package
Thick Film Power
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.
characteristics
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)
1
Derating
100
Percent Rated Power
80
60
40
20
0
Type: H
L
120 200
Rated Power, W
96 160
72 120
48
24
80
40
0
0
0 25 50
85
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
Configurations
(per package)
Config.
1
2
1
Config.
2
4
P e r f o r m a n c e D ata
Test Method
Moisture Resistance
MIL-Std-202, Method 106
Thermal shock
Mil-Std-202, Method 107, Cond F
Vibration, High Frequency
MIL-Std-202, Method 204, Cond D
ΔR
(0.5% + 0.001W) max
(0.3% + 0.01W) max
(0.2% + 0.01W) max
Terminal Strength
MIL-Std-202, Method 211, Cond A (pull test) 2.4N (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, T
HS
=70°C, P
applied
=Pn
(continued)
154
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
tGh series
120 and 200 Watt SOT227 Package
Thick Film Power
(iin./mm)
Dimensions
1.501"
±0.005
(38.1mm
±0.13)
1.235" Ref.
(31.35mm)
3
4
0.473"
±0.010
(12.0mm
±0.26)
0.079"
±0.002
(2.00mm
±0.05)
0.165"
±0.005
(4.2mm
±0.13)
0.980"
±0.021
(24.9mm
±0.5)
1
2
0.032"
±0.002
(0.80mm
±0.05)
0.500"
±0.010
(12.7mm
±0.26)
M4
0.591"
±0.005
(15.0mm
±0.13)
1.190"
±0.010
(30.2mm
±0.26)
0.209"
(5.3mm)
max.
o r D e r i n G i n f o r m at i o n
Standard Part Numbers
Configuration
V = config. 1
Special Option
X = config. 2 A = 1KV
Ohms 120 Watt TGHH
E = RoHS
compliant
200 Watt TGHL
TGHLVR100JE
TGHLVR500JE
TGHLV1R00JE
TGHLV10R0JE
TGHLV25R0JE
TGHLV33R0JE
TGHLV100RJE
TGHLV150RJE
TGHLV500RJE
TGHLV680RJE
TGHLV1K00JE
TGHLV5K00JE
TGHLV10K0JE
TGHLVA25R0JE
SOT 227 Series Wattage Resistance Value
H = 120W Example:
L = 200W R500 = 0.500Ω
1R00 = 1Ω
250R =
250Ω
1K00 = 1,000Ω
10K0 = 10,000Ω
Tolerance
J = 5%
500
680
1K
5K
10K
25
33
50
100
150
0.1
0.5
1
5
10
TGHHVR100JE
TGHHV1R00JE
TGHHV5R00JE
TGHHV10R0JE
TGHHV33R0JE
TGHHV50R0JE
TGHHV100RJE
TGHHV150RJE
TGHHV500RJE
TGHHV680RJE
TGHHV1K00JE
TGHHV5K00JE
TGHHV10K0JE
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
155
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