TO-220 Power Resistors - Direct Electronics

Features:
35 Watt at 25°C Case Temperature Heat Sink Mounted.
TO-220 Style Power Package.
Single Screw Mounting to Heat Sink.
Low Thermal Resistance to Heat Sink at Rth < 4.28°C/W.
Molded Case for Protection and Easy to Mount.
Isolated Case.
Non Inductive.
Applications:
Switching Power Supplies.
Snubbers Circuits.
Automated Machine Controller.
RF Power Amplifers.
Low Energy Pulse Loading.
UPS.
Voltage Regulation.

Derating Curve

Dimensions (Unit: mm)

Type

RMG35

9.91
~
10.41

14.50
~
15.00

4.06
~
4.82

0.55
~
0.70

2.05
~
2.52

12.70
~
14.70

4.00

4.83
~
5.33

0.70
~
0.86

1.17
~
1.37

2.85
~
3.05

3.55
~
3.75

5.85
~
6.35

1.20
~
1.40

Electrical Characteristics Specifications

Environmental Characteristics

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.

Lead Material: Tinned Copper.
Maximum Torque: 0.9 Nm.
Without a Heat Sink, When in Free Air at 25°C, the RMG35 is Rated for 2.50W.
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.
Thermal Grease Should be Applied Properly.

How to Order - TO-220 Power Resistors

RMG

Part Number

RMG

Power Rating (W)
35

Direct Electronics Tech. Co., Ltd.
Taiwan Tel:+886-2-29810109 Fax:+886-2-29887487
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POWER RESISTORS