TK/TN Series0 pages

TK/TN Series

Discontinued May 2013
Product will be available till existing stock is depleted.

20 and 15 Watt TO-220 Package
Thick and Thin Film
0.394"
(10mm)

0.177"
(4.5mm)

Specifications

0.004"
(0.1mm)

0.591"
(15mm)
0.701"
(17.8mm)

0.031"
(0.8mm)

0.039"
(1.0mm)
0.201"
(5.1mm)

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:
•t Low Resistance Values down
to 0.03 ohms for current sense
applications
•t Low Cost
•t Thin Film Construction is the
first Thin Film power resistor in
heatsinkable packaging on the
market.

W H Y T H IN F I L M ?
Thin film technology offers the following performance advantages:
•t Extremely stable (low TCR)
•t Low Noise (parasitic capacitance
and resistance)
•t Excellent High Frequency
Performance
•t High Accuracy (tight tolerances)

0.287"
(7.3mm)

Patent pending

Bracket
6200E: recommended mounting bracket kit (optional)
0.180"
(4.57mm)

Material
Resistive element: Thick or thin film chip resistor
Terminals: Tin plated copper (100Sn)
Case: Ryton
Heatsink plate: Black anodized aluminum
Electricalt
Thick film TK20t Thin film TN15
Power rating: t
20Wt
15W
(Heat-sink dependent; must be attached to a proper heat sink for full
power rating. Max. case temp. cannot exceed 150°C.)
Derating: t
Linear, 100% at 25°C to 0% at 150°C
Resistance Range:t
10mΩ-10KΩt
4Ω-10KΩ
Tolerance:t
5%t
1%, 2%
Max. working voltage:t0.01Ω-1KΩ:t
√20*Rt
√15*R
t
3KΩ-10KΩ:t
150Vt
200V
Max. working current:t0.01Ω-0.1Ω:t
10A
t
0.3Ω-10KΩ:t
√20/R
t
4Ω-10KΩ:tt
√15/R
TCR:t
0.01Ω-0.1Ω:t ±300ppm
t
0.3Ω-10KΩ:t ±200ppm
t
±50ppm
4Ω-10KΩ:tt
ttt
(lower available)
Thermal resistance. RTH:t
<6.25°C/Wt
<8.33°C/W

s ta n d a r d pa rt n u m b e r s

0.320"
(8.12mm)

TK20
thick film
20 watt

t Ohms
0.900"
(22.86mm)

radius
1mm

0.240"
(6.10mm)

hole
tapped
for 6-32
screw

5% tol.

TN15
thin film
15 watt
1% tol.

0.03
0.04
0.05
0.075

0.1
0.3
0.4
0.5
0.75

TK20PR100JE
TK20PR300JE
TK20PR400JE
TK20PR500JE
TK20PR750JE

1
3
4
5
7.5

TK20P1R00JE
TK20P3R00JE
TK20P4R00JE
TK20P5R00JE
TK20P7R50JE

TN15P4R00FE
TN15P5R00FE
TN15P7R50FE

10
30
40
50
75

TK20P10R0JE
TK20P30R0JE
TK20P40R0JE
TK20P50R0JE
TK20P75R0JE

TN15P30R0FE
TN15P40R0FE
TN15P50R0FE
TN15P75R0FE

100
300
400
500
750

TK20P100RJE
TK20P300RJE
TK20P400RJE
TK20P500RJE
TK20P750RJE

TN15P300RFE
TN15P400RFE
TN15P500RFE
TN15P750RFE

1000
3000
4000
5000
7500

TK20P1K00JE
TK20P3K00JE
TK20P4K00JE
TK20P5K00JE
TK20P7K50JE

TN15P3K00FE
TN15P4K00FE
TN15P5K00FE
TN15P7K50FE

t10,000

TK/TN
mounted
vertically

2% tol.t

TK20PR030JE
TK20PR040JE
TK20PR050JE
TK20PR075JE

TK20P10K0JE

TN15P10R0GE

TN15P100RGE

TN15P1K00GE

TN15P10K0GE

THIS PRODUCT IS DESIGNED FOR
USE WITH PROPER HEATSINKING.
o r d e r i n g i n f o r m at i o n

T K 2 0 P 1 R 0 0 J E
Series
TCR
TK20 = 20W thick film (TN15 only)
TN15 = 15W thin film P = ±50ppm
L = ±25ppm
V = ±10ppm
X = ±5ppm

68

Ohmite Mfg. Co.

Resistance
Example:
R075 = 75mΩ
7R50 = 7.5Ω
75R0 = 75Ω
7K50 = 7500Ω

Tolerance RoHS
F = 1%
Compliant
G= 2%
J = 5%

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.  

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