1. Product Description & General Overview:

️· Type: 4-terminal SMD (Surface Mount Device) current sensing resistor.
️· Material: MnCu (Manganese-Copper Alloy)
️· Application: Primarily for automotive and other applications requiring current sensing.
️· Document Date: April 2022

2. Key Specifications & Performance:

️· Resistance Values: Available in the following values: 0.050Ω, 0.075Ω, 0.100Ω, 0.150Ω, 0.200Ω, 0.300Ω, and 0.500Ω.
️· Rated Current & Voltage: Calculated based on resistance value, rated power, and derating factors (formulas provided in the document).
️· Temperature Range: -55°C to +170°C
️· Rated Power: 1 Watt (W)
️· Insulation Resistance: > 100 MΩ
️· Temperature Coefficient of Resistance: IEC60115-1 4.8, +25°C to +125°C.

3. Environmental & Reliability Testing:

The resistor undergoes extensive testing to meet automotive and industrial standards, including:

️· High Temperature Exposure: 1000 hours at +170°C.
️· Temperature Cycling: 1000 cycles (-55°C to +125°C).
️· Moisture Resistance: 24 hours/cycle for 10 cycles, unpowered.
️· Biased Humidity: 1000 hours at +85°C/85% RH.
️· Operational Life: 1000 hours at +125°C with derating.
️· Resistance to Solvents: Testing with various solvents (Isopropyl alcohol, terpene defluxer, deionized water mixture).
️· Mechanical Shock: 100 g's peak value.
️· Vibration: 5 g's for 20 minutes.
️· Resistance to Soldering Heat: MIL-STD-202 method 210.
️· Thermal Shock: 300 cycles (-55°C to +155°C).
️· ESD Protection: Verified at 500V.
️· Flammability: UL-94 V-0 or V-1

4. Soldering Recommendations:

️· Reflow Profile: Detailed reflow profile parameters are provided, including temperatures, dwell times, and ramp rates for lead-free solder.
️· Manual Soldering: +350°C ±10°C, 3 +1/-0 seconds.
️· Important Note: Hand soldering is generally manual.

5. Part Numbering System

The provided table explains the part numbering convention:

️· @: Grade option (A=Automotive)
️· Rxxxx: Resistance code (R=resistance, xxxx=resistance code)
️· ***: Resistance tolerance code (F= ±1%)
️· **?: Power rating code (C=1W)
️· **M: Material (MnCu)

6. Important Policies:

️· Life Support Policy: Eaton does *not* authorize use in life-support systems without written approval.
️· Change Notification: Eaton reserves the right to change product specifications without notice.