PRECISION POWER RESISTORS

TO-220 Precision Power Resistors

RMG20 W

Tokenchina providing design engineers with an open screened substrate device for applications requiring superior thermal performance, the resistor is housed in a TO-220 opened screened substrate package, and features an insulated tapered venturi bonded to the substrate for maximum heat dissipation.

The power RMG20 resistor is rated for 20W power dissipation and utilises all three methods of heat dissipation, including conduction through the heatsink tab, radiation from the resistor surface, and convection through the venturi element.

The TO-220 power RMG20 series is lead-free and RoHS compliant. Contact our sales representative for more information.

Features

20 Watt at 25°C Case Temperature Heat Sink Mounted.
Molded Case for Protection and Easy to Mount.
Excellent High Frequency Characteristics.
Precision Tolerances Tight to ±0.5%.
TO-220 Style Power Package.
Non-Inductive, Isolated Case.

Applications

Electronic Ballast: Ignition, Switching Spark Circuit
High Speed Switching Power Supplies.
Load Resistor for Pulse Generators.
RF Power Sources, Voltage Regulation.
VHF Amplifiers, RF Linear Amplifiers.
Snubber Circuits.

TO220 Derating Curve & Dimensions (Unit: mm) - Precision Power RMG20

Type	W	H	T	T1	T2	B	B1	C	D	D1
RMG20	10.15~10.67	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	1.14~1.40

TO220 Electrical Specifications - Precision Power RMG20

Resistance Range	Resistance Tolerance	TCR(PPM/°C)
0.05Ω~1Ω	±5.00% ±10.0%	-
2Ω~5Ω	±1.00% ±5.00% ±10.0%	±200
5Ω~10Ω	±1.00% ±5.00% ±10.0%	±100 ±200
11Ω~10KΩ	±0.50% ±1.00% ±5.00% ±10.0%	±50 ±100 ±200

Working Temperature Range:-65°C to +150°C
Resistance Value < 1Ω is Available
Insulation Resistance: 10GΩmin.
Operating Voltage:350V Max.
Dielectric Strength: 1800VAC

TO220 Environmental Characteristics - Precision Power RMG20

Test Item	Specification	Test Method
Temperature Coefficient of Resistance	10Ω and above, ±50ppm/°C 1Ω and 10Ω, (±100ppm)/°C	Referenced to 25°C, ΔR taken at +105°C
Short Time Overload	Δ R±0.3%	2 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds.
Load Life	Δ R±1.0%	MIL-R-39009,2,000 hours at rated power.
Humidity (Steady State)	Δ R±0.5%	MIL-STD-202F, Method 103B 40°C, 90~95%RH, RCWV 1.5hours ON, 0.5hours OFF. total 1000~1048 hours.
Thermal Shock	Δ R±0.3%	MIL-STD-202, Method 107G. -65°C~150°C,100 cycle
Terminal Strength	Δ R±0.2%	MIL-STD-202, Method 211, Cond.A(Pull Test) 2.4N.
Vibration, High Frequency	Δ R±0.2%	MIL-STD-202, Method 204, Cond.D.

Thermal Grease Should be Applied Properly.
Without a Heat Sink, when in Free Air at 25°C, the RMG20 is Rated for 2.25W.
The Case Temperature is to be used for the Definition of the Applied Power Limit.
The Case Temperature Measurement Must be Made with a Thermocouple Contacting the Center of the Component Mounted on the Designed Heat Sink.
Lead Material: Tinned Copper.

TO220 How to Order - Precision Power RMG20

RMG

1001

Product Type
TO-220 Power Resistors

Power Rating
20 Watts

Resistance Tolerance
D	±0.5%
F	±1%
G	±2%
J	±5%
K	±10%

Packaging
T	Tube
P	Bulk

TCR
D	±50PPM/°C
E	±100PPM/°C
F	±200PPM/°C
-	No specified

Resistance
0R10	0.1Ω
0100	10Ω
4700	470Ω
1001	1000Ω
1002	10000Ω