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Specifications
Power(Watts):
125mW
Resistance:
390mΩ
Temperature Coefficient:
±200ppm/℃
Operating Temperature:
-55℃~+125℃
Type:
Thick Film Resistor
Tolerance:
±1%
Mfr. Part #:
73L3R39F
Package:
0805
Key Attributes
Model Number:
73L3R39F
Product Description
CTS 73Lx & 73Ex Series Current Sensing Resistors
The 73Lx & 73Ex Series Current Sensing Resistors are ceramic packaged devices designed for excellent accuracy in current detection and limiting applications. These resistors offer good electrical and thermal characteristics, making them suitable for a wide range of industrial and electronic systems.
Product Attributes
- Brand: CTS
- Construction: Thick Film
- Terminal Finish: Matte Tin (e3)
- Certifications: RoHS Compliant in Accordance with EU Directive 2011/65/EU - Lead-Free Termination Finish - Exemption 7(c)-I, Electrical and electronic components containing lead [Pb] in glass
- Packaging: Tape and Reel
Technical Specifications
| Model Type | Power Rating @ +70C | Resistance Range [m] | Resistance Tolerance [%] | Operating Temperature Range | Working Voltage [max V] | Temperature Coefficient |
| 73L1 | 0.10 W | 200 - 910 | F [1%], G [2%], J [5%] | -55C to +155C | 100V (V=(P*R)) | 300ppm/C |
| 73L2 | 0.10 W | 200 - 910 | F [1%], G [2%], J [5%] | |||
| 73L3 | 0.125 W | 100 - 910 | F [1%], G [2%], J [5%] | 200ppm/C | ||
| 73L4 | 0.250 W | 100 - 910 | F [1%], G [2%], J [5%] | 100ppm/C | ||
| 73L5 | 0.500 W | 100 - 910 | F [1%], G [2%], J [5%] | 100ppm/C | ||
| 73L6 | 0.750 W | 100 - 910 | F [1%], G [2%], J [5%] | 200ppm/C | ||
| 73L7 | 1.000 W | 100 - 910 | F [1%], G [2%], J [5%] | 200ppm/C | ||
| 73E3 | 0.250 W | 50 - 91 | F [1%], J [5%] | -55C to +155C | --- | 100ppm/C |
| 73E4 | 0.500 W | 50 - 91 | F [1%], J [5%] | 100ppm/C | ||
| 73E6 | 1.000 W | 50 - 91 | F [1%], J [5%] | 100ppm/C |
Applications
- Current Detection
- Current Limiting
- Regulated Battery Circuits
- Motor Control
- Power Supply
- Hard Disk Drives
- Inverter/Converter
- Industrial Equipment
- Infotainment Systems
Environmental Parameters
| Test Description | Maximum Delta R [%] | Conditions |
| Thermal Cycle | 5.00 | 5 cycles -55C to +125C |
| Short Time Overload | 2.50 | 2 times rated working voltage for 5 seconds |
| Moisture Resistance | 3.00 | 240 hours; +40C, 90% RH |
| High Temperature Exposure | 3.00 | 1,000 hours @ +155C, no load |
| Load Life | 5.00 | 1,000 hours @ +70C, rated load |
| Resistance to Solder Heat | 3.00 | 10 seconds @ +260C solder |
| Resistance to Solvents | - | Isopropyl alcohol, Freon TMC |
| Solderability | - | RMA Flux, +230C, 5 seconds dip, 95% coverage |
2411201014_CTS-73L3R39F_C4552605.pdf
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