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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