Ohmite TAH Series Data Sheet
TAH Series
175
100
Percent Rated Power
Bottom of base plate Temperature, °C
60
20
0
050 100 15025 75 125
80
40
Rated Power, Watts
20/35
16/28
12/21
8/14
4/ 7
0
TAH/TCH
TCH
TAH
20 Watt TO220 Package
Thick Film Power
The TAH20 is a completely encapsulated
thick film resistor in the TO220 package
outline. Rated for 20 watts @ 25°C case
temperature, these resistors are electrically isolated, and molded in a high
temperature case.
Designed for heat sink mounting,
the symmetrical package is ready for
use with snap-on style heat sinks (we
recommend use of thermal grease). The
TAH20 Series has very low inductance,
and available in a wide range of resistance values in standard 5% tolerance.
FEATURES
• 20 Watt Power Rating at
25°C Case Temperature
• High Pulse Tolerant Design
• Quick-snap Molded Package
• Very Low Inductance Design
• Resistor Package Electrically
Isolated from Heat Sink
• Low Thermal Resistance to
Heat Sink @ RTH<6.25°C/W
• Tube Packaging Available
APPLICATIONS
• Frequency Conversion
• High Frequency Balancing
• Snubbers
1% tolerance available by special order.
CHARACTERISTICS
Resistance Range
Tolerance
Temperature
Coefficient
Max Operating
Voltage
Dielectric Strength
Power Rating
Insulation Resistance
Momentary Overload
Case Material
Terminal Material
Terminal Plating
Mounting
Solder Process
0.05Ω to 10KΩ, other values available upon
request
<0.1Ω: 5% only
0.1Ω-1MΩ: 5% std.; 1% available
Referenced to 25°C, ∆R taken at +105°C;
1 to 10Ω: ±(100ppm+0.002Ω)/°C
10Ω & up: ±50ppm/°C
350V
1,800 VAC
20W @ 25°C case temperature; see derating
curve, below
10GΩ min.
2x rated power for 5 seconds where applied
voltage ≤1.5 times max. operating voltage.
∆R ±(0.3% + 0.001Ω) max.
KMC-125 epoxy
Copper
Lead Free Solder (97% Tin, 3% Silver)
Requires the use of a snap-on style heat
sink. A thermal compound should be properly
applied.
The TAH20 cannot exceed 260°C for more
than 10 seconds during soldering process.
Terminal Strength
Derating
Load Life
Thermal Shock
High Freq
Vibration
Moisture
Resistance
MIL-R-39009, 2000 Hours
@ Rated Pwr
MIL-R-STD-202, Method
107, Cond. F
MIL-R-STD-202, Method
204, Cond. D
MIL-R-STD-202, Method
211, Cond. A (Pull Test)
2.4N
MIL-R-STD-202, Method
106
∆R = ±(1.0%
+ 0.001) Ω
∆R = ±(0.3%
+ 0.001) Ω max
∆R = ±(0.2%
+ 0.001) Ω max
∆R = ±(0.2%
+ 0.001) Ω max
∆R = ±(0.5%
+ 0.01) Ω max
(continued)
145
0.400–0.420"
(10.15–10.67mm)
0.630–0.650"
(16.00–16.52mm)
0.450–0.550"
(11.43–13.97mm)
0.100–0.160"
(2.54–4.06mm)
0.045–0.055"
(1.14–1.40mm)
0.026–0.034"
(0.66–0.86mm)
0.190–0.210"
(4.82–5.34mm)
0.115–0.135"
(2.92–3.44mm)
0.016–0.024"
(0.40–0.60mm)
0.060–0.080"
(1.52–2.04mm)
Ohm Value
Example:
2R40 = 2.4 Ohms
2K40 = 2400 Ohms
Tolerance
F = 1%
J = 5% Standard
Series
TAH20P10R0JE
Package Code
RoHS Compliant
Non-compliant
version unavailable
TAH Series
20 Watt TO220 Package
Thick Film Power
(iin./mm)
ORDERING INFORMATION
DIMENSIONS
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 establish the
power rating. Best technique is to attach a thermocouple to the side of the base plate of the resistor. Temperature of
plastic housing or heat sink cannot be used to establish rating of the resistor.
Standard Part Numbers
TAH20P100RJE
TAH20P10K0JE
TAH20P10R0JE
TAH20P150RJE
TAH20P15R0JE
TAH20P1K00JE
TAH20P1K50JE
TAH20P1R00JE
TAH20P1R50JE
TAH20P200RJE
TAH20P20R0JE
TAH20P220RJE
TAH20P22R0JE
TAH20P240RJE
TAH20P24R0JE
TAH20P2K00JE
TAH20P2K20JE
TAH20P2K40JE
TAH20P2R00JE
TAH20P2R20JE
TAH20P2R40JE
TAH20P330RJE
TAH20P33R0JE
TAH20P390RJE
TAH20P39R0JE
TAH20P3K30JE
TAH20P3K90JE
TAH20P3R30JE
TAH20P3R90JE
TAH20P470RJE
TAH20P47R0JE
TAH20P4K70JE
TAH20P4R70JE
TAH20P510RJE
TAH20P51R0JE
TAH20P5K10JE
TAH20P5R10JE
TAH20P750RJE
TAH20P75R0JE
TAH20P7K50JE
TAH20P7R50JE
TAH20PR050JE
TAH20PR100JE
TAH20PR150JE
TAH20PR200JE
TAH20PR220JE
TAH20PR240JE
TAH20PR330JE
TAH20PR390JE
TAH20PR470JE
TAH20PR510JE
TAH20PR750JE
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