TOKEN
RMG20 TO-220 Power Resistors
TO-220
Power Resistors
Power Resistors (TO-220 RMG20) Deliver
Thermal Efficiency
Preview
Providing design engineers with superior heat dissipation in
a standard industry-recognised package, Token Electronics
has introduced a TO220-style power resistor using a highly
reliable, economical copper thick film.
The RMG20 Series, designed by Token, are rugged resistors
feature noninductive performance and low thermal
resistance, making them ideal for a variety of industrial
applications such as power supplies, industrial controls and
automotive, where cost effective performance and reliability
are paramount.
The non-noble copper ink construction of the RMG20 Series
resistor makes it an efficient alternative to other thick film leaded power resistors while maintaining the excellent
thermal conductivity and heat dissipation necessary for demanding power applications.
With low resistance values at higher power ratings, Token’s proprietary resistor element ensures design engineers
the highest quality noninductive performance in an efficient package.
Operating temperatures range from -65°C to +150°C.
Constructed with proprietary thick-film copper conductors and alloy resistors on an alumina ceramic substrate,
the RMG20 Series resistor features low thermal impedance for high power dissipation. Contact us with your
specific needs.
Features
- Molded Case for Protection and Easy to Mount.
- 20 Watt at 25°C Case Temperature Heat Sink Mounted.
- Isolated Case, Non Inductive, TO-220 Style Power Package.
Applications
- VHF Amplifiers, Snubber Circuits, Voltage Regulation, Load Resistor for Pulse Generators,
High Speed Switching Power Supplies.
Version 2010
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Dimensions (Unit: mm)
RMG20 TO-220 Power Resistors
T
W
D1
H
B1
T1
B
D
C
T2
Type
RMG20
W
10.15~10.67
H
T
T1
T2
B
B1
C
D
D1
1.14~1.40
16.00~16.52 2.92~3.44 0.40~0.60 1.52~2.04 11.43~13.97 2.54~4.06 4.82~5.34 0.66~0.86
Electrical Characteristics Specifications
Resistance Range
0.05Ω~1Ω
2Ω~5Ω
Resistance Tolerance
±5.00%
±10.0%
±1.00%
±5.00%
±10.0%
±1.00%
±5.00%
±10.0%
±0.50%
±1.00%
±5.00%
±10.0%
TCR(PPM/°C)
-
±200
±100
±200
±50
±100
±200
5Ω~10Ω
11Ω~10KΩ
Note: Operating Voltage:350V Max. Dielectric Strength: 1800VAC. Insulation Resistance: 10GΩmin.
Working Temperature Range:-65°C to +150°C. Resistance Value < 1Ω is Available
Power Derating Curve
Derating Curve
100
Rated Power (%)
80
60
40
20
0
0
20
50
75
100
125
150
175
Case Temperature (°C)
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Environmental Characteristics
Test Item
Temperature Coefficient of
Resistance
Short Time Overload
Load Life
Humidity (Steady State)
Thermal Shock
Terminal Strength
Vibration, High Frequency
RMG20 Power Resistors
Specification
Test Method
10Ω and above, ±50ppm/°C
Referenced to 25°C, ΔR taken at +105°C
1Ω and 10Ω, (±100ppm)/°C
2 times rated power with applied voltage not to exceed
Δ R±0.3%
1.5 times maximum continuous operating voltage for 5
seconds.
Δ R±1.0%
MIL-R-39009,2,000 hours at rated power.
MIL-STD-202F, Method 103B
Δ R±0.5%
40°C, 90~95%RH, RCWV 1.5hours ON, 0.5hours
OFF. total 1000~1048 hours.
MIL-STD-202, Method 107G.
Δ R±0.3%
-65°C~150°C,100 cycle
Δ R±0.2%
MIL-STD-202, Method 211, Cond.A(Pull Test) 2.4N.
Δ R±0.2%
MIL-STD-202, Method 204, Cond.D.
Note:1.Lead Material: Tinned Copper.
2.Without a Heat Sink, when in Free Air at 25°C, the RMG20 is Rated for 2.25W.
3.The Case Temperature is to be used for the Definition of the Applied Power Limit.
4.The Case Temperature Measurement Must be Made with a Thermocouple Contacting the Center of the Component
Mounted on the Designed Heat Sink.
5.Thermal Grease Should be Applied Properly.
How to Order
RMG
20
J
P
D
TCR
Code
10R
TCR
Part Number: TO-220 Power Resistors
Power Rating
Resistance Tolerance
Code
D
F
G
J
K
Resistance Tolerance
±0.5%
±1%
±2%
±5%
±10%
Packaging
Tube
Bulk
D
E
F
-
±50PPM/°C
±100PPM/°C
±200PPM/°C
No specified
Resistance
0.1Ω
10Ω
Resistance
Code
0R1
10R
1K
10K
Packaging
Code
T
P
1KΩ
10KΩ
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Version 2010
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