TR Series
TO-220 and TO-247 Style Power Resistor
Features:
•
•
•
•
•
•
TR20/30/35/50/50H comes in TO-220 style power package
TR100 available in TO-247 style power package
TR30/35/50H/100 has single screw mounting to heat sink
Molded case for environmental protection
Electrically isolated case
Non-inductive package
Stackpole Electronics, Inc.
Resistive Product Solutions
Electrical Specifications
Type / Code
TR20
TR30
TR35
TR50
Package
Style
TO-220
TO-220
TO-220
TO-220
Power Rating (Watts) Power Rating
@ 25ºC with
(Watts)
Heat Sink (3)
@ 25ºC
20W
30W
35W
50W
3W
2.25W
2.5W
3W
350V
350V
Maximum
Working
Voltage (1)
Resistance
Temperature
Coefficient
±50 ppm/ºC
±100 ppm/ºC
±200 ppm/ºC
±300 ppm/ºC
(2)
±50 ppm/ºC
±100 ppm/ºC
±200 ppm/ºC
±300 ppm/ºC
(2)
±50 ppm/ºC
±100 ppm/ºC
±200 ppm/ºC
±300 ppm/ºC
(2)
Ohmic Range (Ω) and Tolerance
0.5%
10 - 10K
10 - 10K
10 - 10K
-
-
10 - 10K
10 - 10K
10 - 10K
-
-
-
-
-
-
-
1%
10
3.01
3.01
1.02
10
3.01
3.01
1.02
10
3.01
3.01
1.02
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10K
10K
10K
3
10K
10K
10K
3
10K
10K
10K
3
5%
10
3.3
3.3
1.1
0.05
10
3.3
3.3
1.1
0.1
10
3.3
3.3
1.1
0.05
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10K
10K
10K
3
1
10K
10K
10K
3
1
10K
10K
10K
3
1
10%
10
3.3
3.3
1.1
0.05
10
3.3
3.3
1.1
0.1
10
3.3
3.3
1.1
0.05
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10K
10K
10K
3
1
10K
10K
10K
3
1
10K
10K
10K
3
1
TR50H
TO-220
50W
2.25W
420V
TR100
TO-247
100W
3.5W
700V
(1) Lesser of
√PR
or maximum working voltage
(2) Unspecified TCR. Contact Factory.
(3) The case temperature is to be used for the definition of the applied power limit. Refer to Power Derating Curve.
Environmental Characteristics
Test Item
Short Time Overload
Load Life
Moisture Resistance
Thermal Shock
Terminal Strength
Vibration, High Frequency
Dielectric Strength
Insulation Resistance
Operating Temperature Range:
-65ºC to + 150ºC (TR20/TR30/TR50/TR50H)
-65ºC to + 175ºC (TR35/TR100)
Specification
TR20/30/35/50/50H
∆R
± (0.3% + 0.001Ω)
∆R
± (1% + 0.001Ω)
∆R
± (0.5% + 0.001Ω)
∆R
± (0.3% + 0.001Ω)
∆R
± (0.2% + 0.001Ω)
∆R
± (0.2% + 0.001Ω)
TR100
∆R
± (0.5% + 0.001Ω)
∆R
± (1% + 0.001Ω)
∆R
± (0.5% + 0.001Ω)
∆R
± (0.5% + 0.001Ω)
∆R
± (0.2% + 0.001Ω)
∆R
± (0.4% + 0.001Ω)
1800VAC
10GΩ min.
Test Method
2 times rated power with applied voltage not to exceed 1.5 times
maximum continuous operating voltage for 5 seconds
MIL-R-39009, 2000 hours at rated power
MIL-STD-202, Method 103B
MIL-STD-202, Method 107G
MIL-STD-202, Method 211, Condition A (Pull Test) 2.4N
MIL-STD-202, Method 204, Condition D
Rev Date: 03/14/2012
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
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marketing@seielect.com
TR Series
TO-220 and TO-247 Style Power Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
Type
Code
A
B
C
D
E
F
G
H
J
K
M
N
O
P
TR20
0.410 ± 0.010
10.41 ± 0.26
0.640 ± 0.010
16.26 ± 0.26
0.125 ± 0.010
3.18 ± 0.26
0.050 ± 0.005
1.27 ± 0.13
0.030 ± 0.004
0.76 ± 0.10
0.200 ± 0.010
5.08 ± 0.26
0.130 ± 0.030
3.30 ± 0.76
0.500 ± 0.050
12.70 ± 1.27
0.020 ± 0.004
0.50 ± 0.10
0.070 ± 0.010
1.78 ± 0.26
-
-
-
-
TR30
0.410 ± 0.010
10.41 ± 0.26
0.640 ± 0.010
16.26 ± 0.26
0.125 ± 0.010
3.18 ± 0.26
0.050 ± 0.005
1.27 ± 0.13
0.030 ± 0.004
0.76 ± 0.10
0.200 ± 0.010
5.08 ± 0.26
0.130 ± 0.030
3.30 ± 0.76
0.500 ± 0.050
12.70 ± 1.27
0.020 ± 0.004
0.50 ± 0.10
0.070 ± 0.010
1.78 ± 0.26
0.125 ± 0.004
3.18 ± 0.10
0.125 ± 0.010
3.18 ± 0.26
-
-
TR35
0.400 ± 0.010
10.16 ± 0.25
0.581 ± 0.010
14.75 ± 0.25
0.175 ± 0.015
4.44 ± 0.38
0.050 ± 0.005
1.27 ± 0.13
0.031 ± 0.003
0.78 ± 0.08
0.200 ± 0.010
5.08 ± 0.26
0.130 ± 0.030
3.30 ± 0.76
0.539 ± 0.039
13.70 ± 1.00
0.024 ± 0.003
0.62 ± 0.08
0.090 ± 0.010
2.28 ± 0.25
0.144 ± 0.004
3.65 ± 0.10
0.116 ± 0.004
2.95 ± 0.10
0.051 ± 0.004
1.30 ± 0.10
0.240 ± 0.004
6.10 ± 0.10
TR50
0.410 ± 0.010
10.41 ± 0.26
0.640 ± 0.010
16.26 ± 0.26
0.125 ± 0.010
3.18 ± 0.26
0.050 ± 0.005
1.27 ± 0.13
0.030 ± 0.004
0.76 ± 0.10
0.200 ± 0.010
5.08 ± 0.26
0.130 ± 0.030
3.30 ± 0.76
0.500 ± 0.050
12.70 ± 1.27
0.020 ± 0.004
0.50 ± 0.10
0.070 ± 0.010
1.78 ± 0.26
-
-
-
-
TR50H
0.410 ± 0.010
10.41 ± 0.26
0.640 ± 0.010
16.26 ± 0.26
0.125 ± 0.010
3.18 ± 0.26
0.050 ± 0.005
1.27 ± 0.13
0.030 ± 0.004
0.76 ± 0.10
0.200 ± 0.010
5.08 ± 0.26
0.130 ± 0.030
3.30 ± 0.76
0.500 ± 0.050
12.70 ± 1.27
0.020 ± 0.004
0.50 ± 0.10
0.070 ± 0.010
1.78 ± 0.26
0.125 ± 0.004
3.18 ± 0.10
0.125 ± 0.010
3.18 ± 0.26
-
-
TR100
0.620 ± 0.010
15.75 ± 0.26
0.815 ± 0.010
20.70 ± 0.26
0.195 ± 0.010
4.95 ± 0.26
0.143 ± 0.007
3.63 ± 0.18
0.060 ± 0.004
1.52 ± 0.10
0.400 ± 0.010
10.16 ± 0.26
0.110 ± 0.030
2.79 ± 0.76
0.570 ± 0.050
14.48 ± 1.27
0.032 ± 0.010
0.81 ± 0.26
0.095 ± 0.010
2.41 ± 0.26
0.143 ± 0.007
3.63 ± 0.18
0.210 ± 0.010
5.33 ± 0.26
-
-
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Mounting Note:
(1) When mounting ensure entire ceramic portion of case is mounted on a clean, flat heat sink with an
appropriate thermal interface, such as thermal grease. For screw mounting use of a compression washer
at a force of 150 to 300lbs (665 to 1330N) is recommended without exceeding mounting torque of 8 in-lbs
(0.9 N-m) to avoid package damage. For clip mounting use of a round or smooth clip in contact area is
recommended to avoid a concentrated hot spot on package.
(2) TR50/100 must be mounted to heat sink using proper mounting clip for efficient heat dissipation.
Rev Date: 03/14/2012
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
2
www.seielect.com
marketing@seielect.com
TR Series
TO-220 and TO-247 Style Power Resistor
Power Derating Curve:
100
80
Stackpole Electronics, Inc.
Resistive Product Solutions
Power Ratio (%)
60
TR20/TR30/TR50/TR50H
40
20
0
0
25
50
75
100
125
150
175
TR35/TR100
Case Temperature
How to Order
1
2
3
4
5
6
7
8
9
10
11
T
Product Series
TR Standard
Size
20
30
35
50
50H
100
R
Power
20W
30W
35W
50W
50W
100W
2
Tolerance
Code Tol
0.5%
D
1%
F
5%
J
10%
K
0
F
B
D
1
K
0
TCR
ppm
unspecified
50
100
200
300
0
Resistance Value
Four characters with
the multiplier used as
the decimal holder.
11 ohm = 11R0
1 Kohm = 1K00
10 Kohm = 10K0
Code
B
Description
Bulk
Packaging
Size
20, 30, 50, 50H
100
35
Quantity
1,000
600(1)
500
Code
-
C
D
L
M
(1) Contact Factory for smaller quantities.
Legacy Part Number (before January 3, 2011):
SEI Type
Code
TCR
Nominal
Resistance
Tolerance
Packaging
TR
Type
TR
Description
Standard
Code
20
30
35
50
50H
100
20
Wattage
20W
30W
35W
50W
50W
100W
Code
-
T2
T1
T0
T1
TCR
Unspecified
50 ppm
100 ppm
200 ppm
1K
1%
Tolerance
±0.5%
±1%
±5%
±10%
Style
20, 30, 50, 50H
100
35
B
Qty
Description
1,000
Box
600(1)
500
Code
B
(1) Contact Factory for smaller quantities.
Rev Date: 03/14/2012
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
www.seielect.com
marketing@seielect.com
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