TO-220
Power Resistor
T0220 Series
•
•
•
•
•
TO-220 housing
Low inductance (<50nH)
Available in 20W or 30W
Resistance from 0.01 to 51KΩ
High stability film resistance elements
IRC Advanced Film Division
0.01
Ω
5%
0541
IRC’s TO-220 power film resistors satisfy demanding applications for accurate and stable power resistors
housed in the convenient TO-220 case. The resistance element is isolated from the mounting tab by an
alumina ceramic layer, providing very low thermal resistance and ensuring high insulation resistance between
terminals and tab. The non-inductive design makes these products especially useful in high frequency and
high speed pulse applications.
Electrical Data
Power Rating
4, 5
Type
Heat-
sink
1
Free Air
2
Thermal
Resistance
Min
0.1Ω
30W
TO222-30
30W
1W
2.3°C/W
1W
2.3°C/W
0.01Ω
220Ω
0.1Ω
0.01Ω
220Ω
220Ω
51KΩ
220Ω
220Ω
51KΩ
±5%
±1%, ±5%
±1%
±5%
±1%, ±5%
±250ppm/°C
±100ppm/°C
±100ppm/°C
±250ppm/°C
±100ppm/°C
Max
220Ω
±1%
±100ppm/°C
Resistance Range
3
Tolerances
Temperature Coefficient
20W
TO220-20
20W
1W
3.3°C/W
1W
3.3°C/W
1
5
Power rating based on 25°C flange temperature.
Max voltage 500V or
√
P x R
2
Power rating based on 25°C ambient temperature.
3
Consult factory for higher or lower values.
4
Max current 25 amps
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
© IRC Advanced Film Division
• Corpus Christi Texas 78411 USA
A subsidiary of
TT electronics plc
TO220 Series Issue January 2006
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
TO-220
Power Resistor
Physical Data
IRC Advanced Film Division
Inches
POS
Min
Note: Dimension C apply for tin plate finish.
C
L
Millimeters
Max
Min
4.06
0.63
0.38
14.22
9.78
4.83
1.14
5.94
2.28
3.71
2.62
13.72
3°
1.14
Max
4.83
1.02
0.56
14.99
10.54
5.33
1.40
6.55
2.92
3.96
2.87
14.22
7°
1.52
A
b
c
D
E
e
F
H
0.160
0.025
0.015
0.560
0.385
0.190
0.045
0.234
0.090
0.146
0.103
0.540
3°
0.045
0.190
0.040
0.022
0.590
0.415
0.210
0.055
0.258
0.115
0.156
0.113
0.560
7°
0.060
F
Q
E
A
P
∅
H
α
(5x)
D
b1
R
L
b
J
C
J
e
∅P
Q
L
Lead material
Substrate material
Resistor construction
Tinned copper
96% alumina ceramic
Proprietary film conductors and
proprietary alloy resistors
α
b1
R
0.243 REF
6.17 REF
© IRC Advanced Film Division
• Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
TO220 Series Issue January 2006
TO-220
Power Resistor
Environmental
TEST
Thermal Shock
Mil-Std-202
Method 107
Cond. F
Thermal Strength
Mil-Std-202
Method 211
Cond. A (5165)
Short-Time Overload
5 sec 2xRated Power
Moisture Resistance
Mil-Std-202
Method 106
Mechanical Shock Method
Mil-Std-202
Method 213
Cond. I
Vibration
Mil-Std-202
Method 204
Cond. D
Load Life
MIL-Std-202
Method 108
1,000 Hours
Resistance To Solder Heat
Mil-Std-202
Method 210F
Cond. B
MAX
∆R
IRC Advanced Film Division
Power Derating Curve
±0.30% +0.5mΩ
100
±0.20%
+0.5mΩ
50
10
±0.30% +0.5mΩ
25°
70°
150°
±1.0% +0.5mΩ
±0.25% +0.5mΩ
Ordering Data
Prefix
TFP
-
TO220 -
30
-
1R50 -
J -
100
Style
20 = 20 Watts
30 = 30 Watts
±0.25% +0.5mΩ
Power
±1.00%
+0.5mΩ
Resistance Code
4-digit resistance code.
Ex: 10R0 = 10Ω, 1001 = 1KΩ
Absolute Tolerance Code
J = ±5%; F = ±1%
±0.25% +0.5mΩ
Absolute TCR
±100ppm/°C; ±250ppm/°C
For additional information or to discuss your specific requirements, please contact our
Applications Team using the contact details below.
© IRC Advanced Film Division
• Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
TO220 Series Issue January 2006
Special Edition for Assessment Centres
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