Product Description
The Yuanhui Electronics Technology (Jiangsu) Co., Ltd. Metal Alloy Resistance 2512 Series is designed for high-performance applications. It complies with RoHS requirements and undergoes vehicle-specific AEC-Q200 tests. Key advantages include parasitic inductance less than or equal to 5nH. This series is suitable for applications requiring precise resistance values and high reliability.
Product Attributes
- Brand: YHR
- Origin: Jiangsu, China
- Certifications: RoHS, AEC-Q200
- Material: MnCu, CuNi, Kama (depending on resistance range)
Technical Specifications
| Type | Size | Power | Resistance Range | Resistance Tolerance | TCR | Operating Temperature Range | Max Operating Voltage | Parasitic Inductance |
| LE (Large Electrode) | 2512 | 3W/4W | <0.45m | F: 1%, G: 2%, J: 5% | 350ppm/ (for R<1m), 50ppm/ (for 1mR4m) | -55~ +170 | (P*R) | 5 nH |
| SE (Small Electrode) | 2512 | 3W/4W | R001RR020 | D: 0.5%, F: 1%, G: 2%, J: 5% | 350ppm/ (for R<1.5m), 50ppm/ (for R1.5m) | -55~ +170 | (P*R) | 5 nH |
| SE (Small Electrode) | 2512 | 2W/3W | R001RR220 | |||||
| SE (Small Electrode) | 2512 | 2W | R220RR500 |
Construction and Dimensions
| Product Type | Size (L x W x E x H) |
| 2512 LE | 6.40.2 x 3.20.2 x 2.20.2 x 0.80.08 |
| 2512 SE | 6.40.2 x 3.20.2 x 1.00.2 x 0.80.08 |
Reliability Tests
| Project | Test Method | Specifications and Requirements |
| Temperature coefficient (TCR) | Measured at 25(T1, R1) and 125(T2, R2), calculated as (R2-R1)/(R1(T2-T1))*10^6 | Refer to TCR specifications for physical features |
| Short Time Overload | 5 times rated power, maintain 5s (R000, max current 200A) | R(1%+0.05m) |
| Insulation resistance | Apply 100V15V DC voltage between electrode and substrate, hold for 60s | > 100 M |
| Withstand voltage | Apply AC voltage with effective value of max overload voltage at approx. 100V/S, hold for 605s | No breakdown or arc |
| Solderability | 2455 tin tank, hold 2s0.5s | At least 95% of surface area of electrode shall be covered with new solder |
| Resistance to Soldering Heat | 2705 tin tank, hold for 10s1s | R (0.5%+0.05m), no visible damage |
| Bending test | Bending distance 2mm, hold time 60s5s | R0.5%+0.05m, no mechanical damage |
| Solvent resistance | Isopropanol (IPA) at 235 for 10 hours | No obvious damage to appearance |
| High Temperature Exposure | 1702, 1000H, stand for 1H | R (1.0%+0.05m) |
| Low Temperature Exposure | -552, 1000H, stand for 1H | R (0.5%+0.05m) |
| Rapid change of Temperature | -55 30 min ~ normal temp 5 min ~155 30 min, 1000 cycles | R (0.5%+0.05m) |
| Load Life | 702, 1000 hours, rated power, 1.5 hours on / 0.5 hours off | R (1.0%+0.05m) |
| Moisture with Load | 852, 85%3%RH, 1000 hours, rated power, 1.5 hours on / 0.5 hours off | R (1.0%+0.05m) |
2504271506_Yohey-YHR2512SE3WR080F4_C42453921.pdf
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