RTO50_15 Datasheet, PDF (1/5 Pages) Vishay Siliconix – 50 W Power Resistor, Thick Film Technology, TO-220

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RTO 50
Vishay Sfernice
50 W Power Resistor, Thick Film Technology, TO-220
FEATURES
• 50 W at 25 °C heatsink mounted
• Adjusted by sand trimming
• Leaded or surface mount versions
• High power to size ratio
• Non inductive element
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
Because of the knowledge and experience in Thick Film technology, Vishay Sfernice has been able to develop a high power
resistor in a TO-220 package called RTO 50. The special design of this component allows the dissipation of 50 W when mounted
on a heatsink. The ohmic value is adjusted by sand trimming. This process does not generate hot spots as in laser trimming,
which could lead to microcracks on each side of the curve. This process improves the reliability and the stability of the resistor
and at the same time gives a good overload capability.
DIMENSIONS in millimeters
RTO 50F - LEADED
4.5
10.1
Ø 3.6
1.3
RTO 50C - FOR SURFACE MOUNTING
4.5
10.1
Ø 3.6
1.3
12.5 ¹⁵
13.7
Ø 0.8
5.08
8.8
2.5
12.5 ¹⁵
1.6
5.08
8.8
2
3
0.3
• Only for RTO 50 version C = during surface mount soldering, the
soldering temperature profile must not cause the metal tab of this
device to exceed 220 °C.
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
SIZE
RESISTANCE RATED POWER LIMITING ELEMENT
RANGE

P_{25 °C}
W
VOLTAGE U_L
V
RTO 50
TO-220 0.010 to 550K ⁽¹⁾
50
500
Note
(1) _{E24 series}
TOLERANCE
±%
1, 2, 5, 10
TEMPERATURE
COEFFICIENT
± ppm/°C
150
CRITICAL
RESISTANCE

5K
MECHANICAL SPECIFICATIONS
Mechanical Protection
Molded
Resistive Element
Thick film
Connections
Tinned copper alloy
Weight
2.2 g max.
ENVIRONMENTAL SPECIFICATIONS
Temperature Range
-55 °C to 155 °C
Climatic Category
55/155/156
Sealing
Sealed container, solder immersion
Flammability
IEC 60695-11-5,
2 applications 30 s separated by 60 s
Note
• Not compatible with RoHS reflow profile.
TECHNICAL SPECIFICATIONS
Dissipation and Associated
Onto a heatsink
Thermal Resistance 
and Nominal Power
50 W at +25 °C
R_{TH (j - c)}: 2.6 °C/W
Free air: 2.25 W at +25 °C
Dielectric Strength 
MIL STD 202 (301)
2000 V_RMS - 1 min
10 mA max.
Insulation Resistance
 10⁶ M
Inductance
 0.1 μH
DIMENSIONS
Standard Package
TO-220 insulated case
Revision: 18-Sep-15
1
Document Number: 50035
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000