Product Overview
The Bourns CSM2F-6918 Series is a high-performance current sense resistor designed for demanding applications. Featuring bare copper terminals, it offers up to 36 W of permanent power and a high pulse power rating. This series is RoHS and AEC-Q200 compliant, making it suitable for automotive and industrial environments. Key applications include battery management systems, current sensing in hybrid and electric vehicles, bus bars, welding equipment, and frequency converters.
Product Attributes
- Brand: Bourns
- Terminals: Bare Copper
- Certifications: RoHS Compliant, AEC-Q200 Compliant
- Lead Free: Yes
- Customized Versions: Available
Technical Specifications
| Characteristic | Model | Resistance Range / Power Rating @ 70 C | Operating Temperature Range | TCR on Test Points (+20 C to +130 C) | TCR Resistance Alloy | Inductance | Resistance Tolerance |
|---|---|---|---|---|---|---|---|
| Current Sense Resistor | CSM2F-6918 Series | 50 / 36 W | -40 ~ +170 | 100 ppm/C | < 50 ppm/C | < 5 nH | 5 % |
| 100 / 36 W | 50 ppm/C | ||||||
| 200 / 36 W | 50 ppm/C | ||||||
| Maximum Fastening Torque | 10 Nm | ||||||
| Environmental Characteristics (Test Condition) | DTR Max. | ||||||
| Thermal Shock | -55 C to +150 C / 1000 cycles | 0.5 % | |||||
| High Temperature Exposure | +170 C / 1000 hours | 1.0 % | |||||
| Low Temperature Storage | -65 C/ 1000 hours | 0.5 % | |||||
| Biased Humidity Test | +85 C, 85 % RH, 10 % bias, 1000 hours | 0.5 % | |||||
| Mechanical Shock | 100 g, 6 milliseconds, 5 pulses | 0.5 % | |||||
| Vibration, High Frequency | 10-2000 Hz in 1 minute, 3 directions, 12 hours | 0.5 % | |||||
| Load Life | +125 C / 2000 hours at maximum current rating | 1.0 % | |||||
| Solderability | J-STD-002 | 95 % coverage min. | |||||
| Packaging Specifications | MSL: 1 | ESD Classification: Level 6 per AEC-Q200-002, 25,000 V air discharge | |||||
| Bulk Pack | 50 pcs. per plastic bag | 100 pcs. per box | |||||
| Tray Pack | 52 pcs. per high impact polystyrene tray | 260 pcs. per box | |||||
| Product Dimensions (Size) | 246 mm x 246 mm (9.685 in. x 9.685 in.) |
Part Numbering Scheme: CSM 2F - 6918 - [Resistance Code] [Resistance Tolerance] [Packaging] [Surface Finishing]
Resistance Codes: L050 = 50 MicroOhms, L100 = 100 MicroOhms, L200 = 200 MicroOhms
Resistance Tolerance: J = 5 %
Packaging: 0 = Bulk Pack (50 pcs. per bag), T = Tray Pack (52 pcs. per tray)
Surface Finishing: 0 = Bare Copper Terminals
Example Part Number: CSM2F-6918-L050J00
Dimensions (mm/in):
- Overall Length: 69.00 0.40 (2.717 .016)
- Terminal Diameter: 6.60 0.10 (2.717 .004) (2 PLCS)
- Width (Dim A): Varies by resistance code (e.g., 4.70 (.185) for L050)
- Length (Dim B): Varies by resistance code (e.g., 7.87 (.310) for L050)
2411261433_BOURNS-CSM2F-6918-L100JT0_C4360662.pdf
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