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68 Ohmite Mfg. Co.
TK/TN Series
20 and 15 Watt TO-220 Package
Thick and Thin Film
BRACKET
6200E: recommended mount-
ing bracket kit (optional)
0.287"
(7.3mm)
0.039"
(1.0mm)
0.201"
(5.1mm)
0.031"
(0.8mm)
0.701"
(17.8mm)
0.591"
(15mm)
0.394"
(10mm)
0.177"
(4.5mm)
0.004"
(0.1mm)
ordering information
TK20P1R00JE
Series
TK20 = 20W thick film
TN15 = 15W thin film
Resistance
Example:
R075 = 75mΩ
7R50 = 7.5Ω
75R0 =75Ω
7K50 = 7500Ω
Tolerance
F= 1%
G= 2%
J = 5%
RoHS
Compliant
TCR
(TN15 only)
P= ±50ppm
L=±25ppm
V= ±10ppm
X= ±5ppm
standard part numbers
TK20 TN15
thick film thin film
20 watt 15 watt
Ohms 5% tol. 1% tol. 2% tol.
0.03 TK20PR030JE
0.04 TK20PR040JE
0.05 TK20PR050JE
0.075 TK20PR075JE
0.1 TK20PR100JE
0.3 TK20PR300JE
0.4 TK20PR400JE
0.5 TK20PR500JE
0.75 TK20PR750JE
1 TK20P1R00JE
3 TK20P3R00JE
4 TK20P4R00JE TN15P4R00FE
5 TK20P5R00JE TN15P5R00FE
7.5 TK20P7R50JE TN15P7R50FE
10 TK20P10R0JE TN15P10R0GE
30 TK20P30R0JE TN15P30R0FE
40 TK20P40R0JE TN15P40R0FE
50 TK20P50R0JE TN15P50R0FE
75 TK20P75R0JE TN15P75R0FE
100 TK20P100RJE TN15P100RGE
300 TK20P300RJE TN15P300RFE
400 TK20P400RJE TN15P400RFE
500 TK20P500RJE TN15P500RFE
750 TK20P750RJE TN15P750RFE
1000 TK20P1K00JE TN15P1K00GE
3000 TK20P3K00JE TN15P3K00FE
4000 TK20P4K00JE TN15P4K00FE
5000 TK20P5K00JE TN15P5K00FE
7500 TK20P7K50JE TN15P7K50FE
10,000 TK20P10K0JE TN15P10K0GE
Patent pending
0.900"
(22.86mm)
0.240"
(6.10mm)
0.320"
(8.12mm)
radius
1mm
hole
tapped
for 6-32
screw
0.180"
(4.57mm)
SPECIFICATIONS
Material
Resistive element: Thick or thin film chip resistor
Terminals: Tin plated copper (100Sn)
Case: Ryton
Heatsink plate: Black anodized aluminum
Electrical Thick film TK20 Thin film TN15
Power rating: 20W 15W
(Heat-sink dependent; must be attached to a proper heat sink for full
power rating. Max. case temp. cannot exceed 150°C.)
Derating: Linear, 100% at 25°C to 0% at 150°C
Resistance Range: 10mΩ-10KΩ 4Ω-10KΩ
Tolerance: 5% 1%, 2%
Max. working voltage: 0.01Ω-1KΩ: √20*R √15*R
3KΩ-10KΩ: 150V 200V
Max. working current: 0.01Ω-0.1Ω: 10A
0.3Ω-10KΩ: √20/R
4Ω-10KΩ: √15/R
TCR: 0.01Ω-0.1Ω: ±300ppm
0.3Ω-10KΩ: ±200ppm
4Ω-10KΩ:
±50ppm
(lower available)
Thermal resistance. R
TH: <6.25°C/W <8.33°C/W
Ohmite is proud to introduce
the newest addition to our
family of Heat Sinkable Power
Resistors. The TK/TN Series
offers 3 major advances over
existing TO-220 products:
• Low Resistance Values down
to 0.03 ohms for current sense
applications
• Low Cost
• Thin Film Construction is the
first Thin Film power resistor in
heatsinkable packaging on the
market.
WHY THIN FILM?
Thin film technology offers the fol-
lowing performance advantages:
• Extremely stable (low TCR)
• Low Noise (parasitic capacitance
and resistance)
• Excellent High Frequency
Performance
• High Accuracy (tight tolerances)
TK/TN
mounted
vertically
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.
Discontinued May 2013
Product will be available till existing stock is depleted.
This product has been
DISCONTINUED
