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Specifications
Resistance:
47mΩ
Power(Watts):
5W
Temperature Coefficient:
±50ppm/℃
Type:
Current Sense Resistor
Tolerance:
±1%
Mfr. Part #:
73M5R047F
Package:
4527
Key Attributes
Model Number:
73M5R047F
Product Description
Product Overview
The 73M1A, 73M2A, 73M3x, and 73M5 Series Current Sensing Resistors are metal plate packaged devices designed for excellent accuracy in current detection and limiting. These resistors offer good electrical and thermal characteristics due to their special metallic resistor material, making them suitable for a wide range of industrial applications.
Product Attributes
- Brand: CTS Corporation
- Material: Metal Plate Construction Copper Alloy
- Terminal Finish: Matte Tin [e3]
- Certifications: Reflow Capable per JEDEC J-STD-020, +260C Maximum
- Packaging: Tape and Reel
Technical Specifications
| Model Type | Power Rating [Watts] | Resistance Range [m] | Resistor Tolerance [%] | Rated Ambient Temperature | Operating Temperature Range | Temperature Coefficient |
|---|---|---|---|---|---|---|
| 73M1A | 1.0 | 0.25 - 50 | 1 | +70C | -55C to +155C | R < 0.010: 100ppm/C; R 0.010: 50ppm/C |
| 73M2A | 2.0 | 0.25 - 75 | 1 | +70C | -55C to +155C | R < 0.010: 100ppm/C; R 0.010: 50ppm/C |
| 73M3A | 3.0 | 0.25 - 3 | 1 | +70C | -55C to +155C | R 0.001: 200ppm/C; R > 0.001: 100ppm/C |
| 73M3B | 3.0 | 4 - 100 | 1 | +70C | -55C to +155C | 50ppm/C |
| 73M5 | 5.0 | 1 - 120 | 1 | +70C | -55C to +155C | R < 0.010: 100ppm/C; R 0.010: 50ppm/C |
Environmental Specifications
| Test | Test Description | Maximum Delta R [%] |
|---|---|---|
| Short-Time Overload | Applied electric power equal to 3 times rated power in 5s | 0.5 [73M1A, 73M2A, 73M3x], 2.0 [73M5] |
| Insulation Resistance | Over 109 ohm | - |
| Dielectric Withstanding Voltage | No Breakdown | - |
| Resistance to Solder Heat | No Damage | 0.5 |
| Solderability | Over 95% Coverage | - |
| Vibration | No Damage | 0.5 |
| Resistance to Solvent | No Damage | - |
| High Temperature Exposure | 1,000 hours @ +155C 2C, bias load 0% power | 2.0 |
| Change of Temperature | 5 cycles | 0.5 |
| Moisture Resistance | MIL-STD-202, Method 106, 7a and 7b not required, 1 cycle = 24 hours, 10 cycles | 1.0 |
| Bias Humidity | 1,000 hours @ +85C 2C, 85% relative humidity, bias load 10%, on time 90 minutes/off time 30 minutes | 1.0 |
| Endurance [Rated Load] | 1,000 hours @ +70C 3C, bias load, on time 90 minutes/off time 30 minutes | 2.0 |
Mechanical Specifications
| Model Type | Dimensions [mm] (L x W x t) | Resistance [m] |
|---|---|---|
| 73M1A | 3.2 0.3 x 1.6 0.3 x 0.6 0.3 | 0.25 - 50 |
| 73M2A | 6.3 0.3 x 3.2 0.3 x 1.6 0.3 | 0.25 - 75 |
| 73M3A | 6.8 0.3 x 6.5 0.3 x 1.2 Max. | 0.25 - 3 |
| 73M3B | 7.2 0.3 x 6.7 0.3 x 1.3 Max. | 4 - 100 |
| 73M5 | 11.4 0.3 x 6.9 0.3 x 1.8 Max. | 1 - 120 |
2412111354_CTS-73M5R047F_C4321034.pdf
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