TR Series
TO-220 and TO-247 Style Power Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Power Derating Curve:
100
80
60
TR20/TR30/TR50/TR50H
40
20
0
TR35/TR100
0
25
50
75
100
125
150
175
Case Temperature
How to Order
1
T
2
R
3
2
4
0
5
F
6
B
7
D
8
1
9
K
10
0
11
0
Product Series
Size
Power
Tolerance
Packaging
TCR
Resistance Value
TR
Standard
20
30
35
50
20W
30W
35W
50W
Code
D
F
J
Tol
0.5%
1%
5%
Code
B
Description
Bulk
Size
20, 30, 50, 50H
100
35
Quantity
1,000
360
500
Code
X
C
D
ppm
unspecified
50
100
Four characters with
the multiplier used as
the decimal holder.
50H
100
50W
100W
K
10%
L
M
200
300
11 ohm = 11R0
1 Kohm = 1K00
10 Kohm = 10K0
Legacy Part Number (before January 3, 2011):
Nominal
SEI Type
TR
Code
20
TCR
T1
Resistance
1K
Tolerance
1%
Packaging
B
Type
TR
Description
Standard
Code
20
30
Wattage
20W
30W
Code
-
T2
TCR
Unspecified
50 ppm
Tolerance
±0.5%
±1%
Style
20, 30, 50, 50H
100
Qty
1,000
360
Description
Box
Code
B
35
50
35W
50W
T1
T0
100 ppm
200 ppm
±5%
±10%
35
500
50H
100
50W
100W
Rev Date: 09/19/2013
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
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