SR Series Metal Alloy Shunt Two Terminal Low-Resistance Resistor
The SR Series Metal Alloy Shunt Resistors are designed for high-precision current sensing and voltage division applications. They offer excellent long-term stability, low resistance, and low TCR (Temperature Coefficient of Resistance), making them ideal for power modules, high current applications, power supplies, motor drivers, industrial battery management systems, and automotive parts. These resistors are RoHS compliant, halogen-free, lead-free, and AEC-Q200 compliant, ensuring high reliability and performance.
Product Attributes
- Brand: Not specified
- Origin: Not specified
- Material: MnCuSn, MnCu, FeCrAl, NiCrAl
- Color: Not specified
- Certifications: RoHS compliant, Halogen free, Lead free, AEC-Q200 compliant
Technical Specifications
| Type | Power Rating at 70C (W) | T.C.R. (ppm/C) | Max. Rating Current (A) | Max. Overload Current (A) | Resistance Range (m) | Material | Operating Temperature Range (C) | Dimensions (mm) L x W x H | Lead Free | Halogen Free |
| SR1206 | 2 | 300 / 200 / 150 | 81.6 / 63.24 / 44.72 | 182.57 / 141.42 / 100 | 0.3 / 0.5 / 1 | MnCuSn / MnCu | -65 ~ +170 | 3.2 x 0.3 x 1.65 | Yes | Yes |
| SR2512 | 6 / 5 | 200 / 150 / 115 / 100 / 50 | 154.92 / 141.42 / 109.54 / 81.65 / 70.71 / 50 / 36.51 / 27.38 | 346.41 / 316.22 / 244.94 / 182.57 / 158.11 / 111.80 / 81.65 / 61.23 | 0.25 / 0.3 / 0.5 / 0.75 / 1 / 2 / 3 / 4 | MnCuSn / MnCu / FeCrAl / NiCrAl | -65 ~ +170 | 6.5 x 0.3 x 3.25 | Yes | Yes |
| SR3920 | 12 / 10 / 9 / 8 / 7 / 6 / 5 / 4 / 3 | 200 / 150 / 75 / 50 | 244.94 / 182.57 / 134.16 / 89.44 / 83.66 / 68.31 / 54.77 / 40.82 / 31.62 / 24.49 | 547.72 / 408.24 / 300 / 200 / 187.08 / 152.75 / 122.47 / 91.28 / 70.71 / 54.77 | 0.2 / 0.3 / 0.5 / 1 / 1.5 / 2 / 3 / 4 / 5 | MnCuSn / MnCu / FeCrAl | -65 ~ +170 | 10.2 x 0.30 x 5.20 | Yes | Yes |
| SR5930 | 15 / 10 / 8 / 7 / 6 / 5 | 100 / 75 / 50 | 273.86 / 182.57 / 126.49 / 89.44 / 59.16 / 40.82 | 612.37 / 408.24 / 282.84 / 200 / 132.28 / 91.28 | 0.2 / 0.3 / 0.5 / 1 / 2 / 3 | MnCu / FeCrAl | -65 ~ +170 | 15 x 0.3 x 7.75 | Yes | Yes |
Performance Characteristics
Reliability Test and Requirement
| Test Item | Test Method | Requirements |
| Temperature Coefficient of Resistance (T.C.R) | JIS-C-5201-1 4.8 / IEC-60115-1 4.8 | As Spec |
| Short Time Overload | JIS-C-5201-1 4.13 / IEC-60115-1 4.13 | R/R1 (1.0%+0.0005 ) |
| High Temperature Exposure (Storage) | MIL-STD-202 Method 108 | R/R1 (1.0%+0.0005 ) |
| Temperature Cycling | JESD22 Method JA-104 | R/R1 (1.0%+0.0005 ) |
| Biased Humidity | MIL-STD-202 Method 103 | R/R1 (1.0%+0.0005 ) |
| Operation Life | MIL-STD-202 Method 108 Condition D | R/R1 (1.0%+0.0005 ) |
| Moisture Resistance | MIL-STD-202, Method 106 | R/R1 (1.0%+0.0005 ) |
| Mechanical Shock | MIL-STD-202 Method 213 | R/R1 (0.5%+0.0005 ) |
| Vibration | MIL-STD-202 Method 204 | R/R1 (0.5%+0.0005 ) |
| Board Flex | AEC Q200-005 | R/R1 (1.0%+0.0005 ) |
| Solderability | J-STD-002 | >95% coverage(electrode area) |
Marking Format
1206: no marking. 2512/3920/5930 marking are 3 digits. L decimal location in milliohm e.g. 3 marking is 3L0. 0.3 marking is L30.
Recommended Land Pattern Design (mm)
| TYPE | Resistance Range | a | b | i |
| SR1206 | 0.3m ~1m | 2.10 | 1.80 | 1.40 |
| SR2512 | 0.25m ~5m | 1.80 | 3.40 | 3.80 |
| SR3920 | 2.70 | 6.20 | 5.60 | |
| SR5930 | 0.2m ~3m | 5.20 | 8.75 | 5.60 |
Packing Quantity
| TYPE | PCS /Reel |
| SR1206 | 2,000 |
| SR2512 | 4,000 |
| SR3920 | 3,000 |
| SR5930 | 2,000 |
2409272232_EVER-OHMS-SR392070FR001MZ_C5119476.pdf
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