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Specifications
Power(Watts):
1W
Resistance:
36mΩ
Type:
Current Sense Resistor
Tolerance:
±1%
Mfr. Part #:
73M1AR036F
Package:
1206
Key Attributes
Model Number:
73M1AR036F
Product Description
CTS 73M Series Current Sensing Resistors
The CTS 73M1A, 73M2A, 73M3x, and 73M5 Series Current Sensing Resistors are metal plate packaged devices designed for excellent accuracy in current detection. Utilizing a special metallic resistor material, these resistors offer superior electrical and thermal characteristics. They are ideal for applications such as current detection, current limiting, regulated battery circuits, motor control, power supplies, hard disk drives, inverter/converters, industrial equipment, and infotainment systems.
Product Attributes
- Brand: CTS
- Material: Metal Plate Construction Copper Alloy
- Terminal Finish: Matte Tin [e3]
- Packaging: Tape and Reel
- Reflow Capable: per JEDEC J-STD-020, +260C Maximum
Technical Specifications
| Model Type | Rated Power [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 | 1 - 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 | Maximum Delta R [%] | Test Description |
| 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 | No Damage 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 | No Damage 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 | No Damage 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 |
Mechanical Specifications
| Model Type | Dimensions [mm] L | Dimensions [mm] W | Dimensions [mm] t | Resistance [m] |
| 73M1A | 3.2 ±0.3 | 1.6 ±0.3 | 0.6 ±0.3 | 0.25 - 1.5 |
| 73M2A | 6.3 ±0.3 | 3.2 ±0.3 | 1.6 ±0.3 | 1 - 75 |
| 73M3A | 6.8 ±0.3 | 6.5 ±0.3 | 1.2 ±0.3 | 0.25 - 3 |
| 73M3B | 7.2 ±0.3 | 6.7 ±0.3 | 1.3 ±0.3 | 4 - 100 |
| 73M5 | 11.4 ±0.3 | 6.9 ±0.3 | 1.8 ±0.3 | 1 - 120 |
2411201003_CTS-73M1AR036F_C4309548.pdf
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