Ceramic packaged current sensing resistor CTS 73WL4R110J with thick film construction and matte tin finish
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Product Description
Product Overview
The CTS 73WLx & 73WEx Series Current Sensing Resistors are ceramic packaged devices designed for accurate current detection. Featuring a thick film construction with a wide terminal configuration, these resistors offer excellent electrical and thermal characteristics, making them suitable for a variety of demanding applications. They are available in EIA standard package sizes and are reflow capable.
Product Attributes
- Brand: CTS
- Series: 73WLx & 73WEx
- Construction: Thick Film
- Terminal Finish: Matte Tin (e3)
- Certifications: 73WLX - RoHS Compliant in Accordance with EU Directive 2011/65/EU and 2015/863 - Lead-Free Termination Finish - Exemption 7(c)-I
- Packaging: Tape and Reel
Technical Specifications
| Model Type | Package Size [Inch (mm)] | Rated Power [Watts] @ +70C | Resistance Range [m] | Resistance Tolerance [%] | Temperature Coefficient | Operating Temperature Range [C] | Working Voltage [max V] | Overload Voltage [max V] |
| 73WL4 / 73WE4 | 1206 [3216] | 0.75 | 5 - 910 | 1, 5 | 200ppm/C (for 100-910m), 500ppm/C (for 10-33m), 350ppm/C (for 36-91m) | -55C to +155C | 200 | 400 |
| 73WL6 / 73WE6 | 2010 [5025] | 1.0 | 5 - 910 | 1, 5 | 200ppm/C (for 100-910m), 500ppm/C (for 10-33m), 350ppm/C (for 36-91m) | -55C to +155C | 200 | 400 |
| 73WL7 / 73WE7 | 2512 [6432] | 2.0 | 5 - 910 | 1, 5 | 200ppm/C (for 100-910m), 500ppm/C (for 10-33m), 350ppm/C (for 36-91m) | -55C to +155C | 200 | 400 |
Applications
- Current Detection
- Current Limiting
- Regulated Battery Circuits
- Motor Control
- Power Supply
- Hard Disk Drives
- Inverter/Converter
- Industrial Equipment
- Infotainment Systems
Environmental Parameters
| Test | Test Description | Maximum Delta R [%] |
| Temperature Coefficient | Measured temperature at -55C to 155C | 200ppm/C 1 |
| Short-Time Overload | Apply 2.5 times the rated voltage, 5 seconds, maximum 100V | 2.0 |
| Insulation Resistance | Over 109 ohm Measured at terminals and center of resistor by D.C. 100V 15V in 1 minute [JIS C 5202] | - |
| Dielectric Withstanding Voltage | No Breakdown Applied at terminals and center of resistor on A.C. 400V, 1 minute [JIS C 5201-1 4.7] | - |
| Resistance to Solder Heat | No Damage Immerse in solder, +260C 5C, 10 1 seconds | 1.0 |
| Solderability | Over 95% Coverage Immerse terminal in solder [Sn3Ag0.5Cu], +245C 0.5C, 3 0.5 seconds [JIS C 5201-1 4.17] | - |
| High Temperature Exposure | 1,000 hours @ +155C 2C, bias load 0% power [JIS C 5201-1 4.23.2] | 3.0 |
| Change of Temperature | 30 minutes @ -55C, 10 minutes @ +25C, 30 minutes @ +155C, 10 minutes @ +25C; 1,000 cycles | 1.0 |
| Moisture Resistance | MIL-STD-202, Method 106, 0% power 7a and 7b not required, 1 cycle = 24 hours, 10 cycles | 1.0 |
| Bias Humidity | 1,000 hours @ +85C 2C, 90% - 95% relative humidity, bias load 10%, on time 90 minutes/off time 30 minutes | 3.0 |
| Endurance [Rated Load] | 1,000 hours @ +70C 3C, bias load, on time 90 minutes/off time 30 minutes | 3.0 |
| Resistance to Solvent | Immerse in Isopropyl alcohol, +20C to +25C, 60 5 seconds | No Damage |
| Terminal Strength [Bending] | 3mm bending, 1mm/second, hold 5 seconds | 0.1 |
1 Temperature Coefficient value varies by resistance range. Reference data sheet for specific value.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina