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Specifications
Resistance:
3mΩ
Power(Watts):
3W
Type:
Alloy Resistor
Tolerance:
±1%
Mfr. Part #:
YHR2512SE3WR003F4
Package:
2512
Key Attributes
Model Number:
YHR2512SE3WR003F4
Product Description
Product Description
The Yuanhui Electronics Technology (Jiangsu) Co., Ltd. Alloy Resistance 2512 Series is a high-performance metal alloy resistor designed for demanding applications. It complies with RoHS requirements and meets vehicle-specific AEC-Q200 tests. Key advantages include parasitic inductance less than or equal to 5 nH. This series is suitable for various applications requiring precise resistance values and high power handling.
Product Attributes
- Brand: YHR
- Origin: China (implied by company name)
- Certifications: RoHS, AEC-Q200
- Material: Copper, Manganese-Copper (MnCu), Copper-Nickel (CuNi), Kama (specific materials vary by resistance range and type)
Technical Specifications
| Type | Product Type | Resistor Size | Power | Resistance Tolerance | Resistance Range | Parasitic Inductance | TCR | Operating Temperature Range | Insulation Resistance | Max Operating Voltage |
| LE (Large Electrode) | Metal Alloy Resistance 2512 Series | 2512 | 3W/4W | F: 1%, G: 2%, J: 5% | R0005 R R004 | 5 nH | 350ppm/ (for R<0.45m), 50ppm/ (for 0.45m R 4m) | -55 ~ +170 | > 100 M | (P*R) |
| SE (Small Electrode) | Metal Alloy Resistance 2512 Series | 2512 | 2W/3W/4W | D: 0.5%, F: 1%, G: 2%, J: 5% | R001 R R020 (3W/4W), R220 < R R500 (2W) | 5 nH | 350ppm/ (for 1m R 1.5m), 50ppm/ (for 2m R 20m, 20m < R 150m, 150m < R 220m, 220m < R 400m, 400m < R 500m) | -55 ~ +170 | > 100 M | (P*R) |
Reliability Tests
| Project | Test Method | Specifications and Requirements |
| Temperature coefficient (TCR) | Measured at 25(T1, R1) and 125(T2, R2) | Refer to TCR specifications for physical features |
| ShortTimeOverload | 5 times rated power, maintain 5s (R000, max current 200A) | R1%+0.05m |
| Insulation resistance | Apply 100V15V DC voltage between electrode and substrate, hold for 60 seconds | > 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 minutes ~ normal temperature 5 minutes ~155 30 minutes, 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) |
Packaging and Handling
Tape Packing Dimensions
| A | B | W | F | E | P1 | P2 | P0 | D0 | t |
| 3.50.15 | 6.80.1 | 12.00.2 | 5.50.05 | 1.750.1 | 4.00.1 | 2.00.05 | 4.00.05 | 1.5~1.6 | 1.00.1 |
Reel Dimensions
| Type | A | B | C | D | E | T | W |
| Reel | 1782.0 | 601.0 | 131.0 | 2.00.5 | >22 | 15.40.5 | 13.30.5 |
Pad Pattern
| Size | SE(short electrode) | LE(long electrode) |
| A | 4.0 | 3.1 |
| B | 2.1 | 1.3 |
| L | 4.1 | - |
Matters Needing Attention
- Storage conditions: temperature 5-35, relative humidity 45-75% RH. Maintain low humidity if possible.
- Avoid prolonged direct sunlight exposure.
- Do not store in humid, dusty environments, or in the presence of harmful gases (Hydrogen chloride, sulfurous acid gas, Hydrogen sulfide) that can degrade solderability.
- Storage life: 1 year.
Version History
| Version | Date | Description of amendment |
| A1 | 2022/12/5 | Initial release |
| A2 | 2023/01/05 | Updated resistance range R100-R220 |
| A3 | 2023/02/03 | Modified packaging quantity |
| A4 | 2023/05/06 | Updated resistance range R220-R500 |
| A5 | 2024/01/23 | Updated resistance power |
| A6 | 2024/12/02 | Updated parasitic inductance range |
| A7 | 2025/02/26 | Updated internal structure diagram |
| A8 | 2025/04/15 | Updated main material name description corresponding to resistance range |
2504271506_Yohey-YHR2512SE3WR003F4_C46595950.pdf
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