The TAH20 is a completely
encapsulated thick film resistor
in the TO220 package outline.
Rated for 20 watts @ 25°C
case temperature, these resis-
tors are electrically isolated,
and molded in a high tempera-
ture case.
S P E C I F I C A T I O N S
Electrical
Resistance Range: 0.05Ω to
10KΩ, other values available
upon request
TAH Series
20 Watt TO220 Package
Thick Film Power
Tolerance: ±5% std.
1% Available on request
Temperature Coefficient:
Referenced to 25°C,
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 is
very low induction, and avail-
able in a wide range of resis-
tance values in standard 5%
tolerance. 1% tolerance avail-
able by special order.
0.400–0.420"
0.115–0.135"
(2.92–3.44mm)
ΔR taken at +105°C;
1 to 10Ω: ±(100ppm+0.002Ω)/°C
10Ω & up: ±50ppm/°C
Max Operating Voltage: 350V
Dielectric Strength: 1,800 VAC
Power Rating: 20W @ 25°C case
temperature; see derating curve,
below
Insulation Resistance:
10GΩ min.
Momentary Overload:
2x rated power for 5 seconds
where applied voltage ≤1.5 times
max. operating voltage. ΔR ±
(0.3% + 0.001Ω) max.
Terminal Material: Copper
Terminal Plating: Lead Free
Solder (97% Tin, 3% Silver)
Mounting: Requires the use of a
snap-on style heat sink. A ther-
mal compound should be prop-
erly applied.
Solder Process: The TAH20 can-
not exceed 260°C for more than
10 seconds during soldering
process.
(10.15–10.67mm)
0.630–0.650"
(16.00–16.52mm)
0.100–0.160"
(2.54–4.06mm)
F E A T U R E S
• 20 Watt Power Rating at 25°C
Case Temperature
0.450–0.550"
(11.43–13.97mm)
0.045–0.055"
(1.14–1.40mm)
0.026–0.034"
(0.66–0.86mm)
0.016–0.024"
(0.40–0.60mm)
• 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
0.190–0.210"
(4.82–5.34mm)
0.060–0.080"
(1.52–2.04mm)
T E S T D ATA
MIL-R-39009, 2000 Hours @ Rated Pwr ΔR = ±(1.0% + 0.001) Ω
MIL-R-STD-202, Method 107, Cond. F ΔR = ±(0.3% + 0.001) Ω max
Load Life
Thermal Shock
High Freq Vibration MIL-R-STD-202, Method 204, Cond. D ΔR = ±(0.2% + 0.001) Ω max
Terminal Strength MIL-R-STD-202, Method 211, Cond. A ΔR = ±(0.2% + 0.001) Ω max
A P P L I C A T I O N S
• Frequency Conversion
• High Frequency Balancing
• Snubbers
(Pull Test) 2.4N
Moisture Resistance MIL-R-STD-202, Method 106
ΔR = ±(0.5% + 0.01) Ω max
D E R AT I N G C U R V E
P U L S E - F O R M
E-function, time between two pulses: 1 sec.
TAH/TCH
20/35
100
80
60
40
20
0
100,000
10,000
1,000
100
TCH35
TDH35
16/28
12/21
8/14
TAH20
TCH
10
TAH
1
0.1
4/ 7
0
0.01
0.001
0
25
50
75
100
125
150
175
0.01
0.1
1
10
100
1,000 10,000 100,000
Case Temperature, °C
Time, ms.
S TA N D A R D P A R T N U M B E R S
O R D E R I N G I N F O R M AT I O N
TAH20P100RJE TAH20P220RJE TAH20P33R0JE TAH20P4R70JE TAH20PR100JE
TAH20P10K0JE TAH20P22R0JE TAH20P390RJE TAH20P510RJE TAH20PR150JE
TAH20P10R0JE TAH20P240RJE TAH20P39R0JE TAH20P51R0JE TAH20PR200JE
TAH20P150RJE TAH20P24R0JE TAH20P3K30JE TAH20P5K10JE TAH20PR220JE
TAH20P15R0JE TAH20P2K00JE TAH20P3K90JE TAH20P5R10JE TAH20PR240JE
TAH20P1K00JE TAH20P2K20JE TAH20P3R30JE TAH20P750RJE TAH20PR330JE
TAH20P1K50JE TAH20P2K40JE TAH20P3R90JE TAH20P75R0JE TAH20PR390JE
TAH20P1R00JE TAH20P2R00JE TAH20P470RJE TAH20P7K50JE TAH20PR470JE
TAH20P1R50JE TAH20P2R20JE TAH20P47R0JE TAH20P7R50JE TAH20PR510JE
TAH20P200RJE TAH20P2R40JE TAH20P4K70JE TAH20PR050JE TAH20PR750JE
TAH20P20R0JE TAH20P330RJE
Tolerance
F = 1%
Package Code
J = 5% Standard
T A H 2 0 P 1 0 R 0 J E
Series
Ohm Value
Example:
2R40 = 2.4 Ohms
2K40 = 2400 Ohms
RoHS Compliant
Non-compliant
version unavailable
Check product availability at www.ohmite.com
Our friendly Customer
Service team can be
reached at 866-9-OHMITE
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 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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