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Specifications
Power(Watts):
1W
Resistance:
11mΩ
Type:
Current Sense Resistor
Tolerance:
±1%
Mfr. Part #:
73M1AR011F
Package:
1206
Key Attributes
Model Number:
73M1AR011F
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. Utilizing a special metallic resistor material, these resistors offer superior electrical and thermal characteristics, making them suitable for a wide range of industrial applications including motor control, power supplies, and battery circuits.
Product Attributes
- Brand: CTS Corporation
- Construction: Metal Plate
- Terminal Finish: Matte Tin [e3]
- Reflow Capable: per JEDEC J-STD-020, +260C Maximum
- Packaging: Tape and Reel
- Certifications: JEDEC J-STD-020, JIS C 5201-1, MIL-STD-202
Technical Specifications
| Model Type | Power Rating [Watts] | Resistance Range [m] | Resistance 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 |
| Test | Maximum Delta R [%] | Condition |
|---|---|---|
| Short-Time Overload | 0.5 | Applied electric power equal to 3 times rated power in 5s [JIS C 5201-1 4.13] |
| Short-Time Overload | 2.0 | [73M5] |
| Insulation Resistance | Over 109 ohm | Measured at terminals and center of resistor by D.C. 100V 15V in 1 minute [JIS C 5201-1 4.6] |
| Dielectric Withstanding Voltage | No Breakdown | Applied at terminals and center of resistor on A.C. 500V, 1 minute [JIS C 5201-1 4.7] |
| Resistance to Solder Heat | 0.5 | Place on copper sheet [t = 0.2mm] heated by solder, +260C 5C, 5 0.5 seconds |
| Solderability | Over 95% Coverage | Immerse terminal in solder [Sn3Ag0.5Cu], +245C 0.5C, 3 0.5 seconds [JIS C 5201-1 4.17] |
| Vibration | 0.5 | Frequency 10Hz to 55Hz, Pk-Pk amplitude 15mm, sweeping rate 1 minute, 3 directions each 2 hours [JIS C 5201-1 4.22] |
| Resistance to Solvent | No Damage | Immerse in Isopropyl alcohol, +20C to +25C, 60 5 seconds |
| High Temperature Exposure | 2.0 | 1,000 hours @ +155C 2C, bias load 0% power [JIS C 5201-1 4.23.2] |
| Change of Temperature | 0.5 | 30 minutes @ -55C, 3 minutes @ +25C, 30 minutes @ +155C, 3 minutes @ +25C; 5 cycles |
| Moisture Resistance | 1.0 | MIL-STD-202, Method 106, 0% power 7a and 7b not required, 1 cycle = 24 hours, 10 cycles |
| Bias Humidity | 1.0 | 1,000 hours @ +85C 2C, 85% relative humidity, bias load 10%, on time 90 minutes/off time 30 minutes |
| Endurance [Rated Load] | 2.0 | 1,000 hours @ +70C 3C, bias load, on time 90 minutes/off time 30 minutes |
2411201003_CTS-73M1AR011F_C4352934.pdf
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