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Specifications
Resistance:
12mΩ
Power(Watts):
3W
Type:
Alloy Resistor
Temperature Coefficient:
±50ppm/℃
Tolerance:
±1%
Mfr. Part #:
YHR2512SE3WR012F4
Package:
2512
Key Attributes
Model Number:
YHR2512SE3WR012F4
Product Description
Product Overview
The Yuanhui Electronic Technology (Jiangsu) Co., Ltd. 2512 Alloy Resistance series offers high-performance metal alloy resistors designed for demanding applications. These resistors comply with RoHS requirements and undergo AEC-Q200 vehicle-specific testing. They feature parasitic inductance less than or equal to 5nH, making them suitable for precise circuit designs. Available in LE (large electrode) and SE (small electrode) types, these resistors provide a wide range of resistance values, power ratings, and accuracy tolerances.
Product Attributes
- Brand: YHR
- Origin: China ()
- Certifications: RoHS, AEC-Q200
- Material: MnCu, CuNi, Kama (varies 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 |
| 2512 LE | Metal Alloy Resistance | 2512 | 3W/4W | F: 1%, G: 2%, J: 5% | 0.45m (R000) | 5nH | 350ppm/ (for R<1m), 50ppm/ (for 1mR4m) | -55~ +170 | > 100M | (P*R) |
| 2512 SE | Metal Alloy Resistance | 2512 | 2W/3W/4W | F: 1%, G: 2%, J: 5% | 0.2m (R<0.2m) | 5nH | 350ppm/ (for R<1.5m), 50ppm/ (for 1.5mR220m) | -55~ +170 | > 100M | (P*R) |
| 2512 SE | Metal Alloy Resistance | 2512 | 2W | F: 1%, G: 2%, J: 5% | 20m| 5nH | 50ppm/ | -55~ +170 | > 100M | (P*R) | |
Construction and Dimension
| Product Type | Illustration | 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 and 125 | Refer to TCR specifications for physical features |
| Short Time Overload | 5 times rated power, 5s | R1%+0.05m |
| Insulation resistance | 100V DC between electrode and substrate | > 100 M |
| Withstand voltage | AC voltage applied between electrode and substrate | No breakdown or arc |
| Solderability | 2455 tin bath, 2s0.5s | Electrode tinning area > 95% |
| Resistance to Soldering Heat | 2705 tin bath, 10s1s | R (0.5%+0.05m), no visible damage |
| Bending test | 2mm bending distance, 60s5s | R0.5%+0.05m, no mechanical damage |
| Solvent resistance | Isopropanol (IPA), 235, 10 hours | No obvious damage to appearance |
| High Temperature Exposure | 1702, 1000H | R (1.0%+0.05m) |
| Low Temperature Exposure | -552, 1000H | R (0.5%+0.05m) |
| Rapid change of Temperature | -55 (30min) ~ RT (5min) ~ 155 (30min), 1000 cycles | R (0.5%+0.05m) |
| Load Life | 702, 1000 hours, rated power, 1.5h on / 0.5h off | R (1.0%+0.05m) |
| Moisture with Load | 852, 85%3%RH, 1000 hours, rated power, 1.5h on / 0.5h off | R (1.0%+0.05m) |
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 Size
| Size | SE(short electrode) | LE(long electrode) |
| A | 4.0 | 3.1 |
| B | 2.1 | 1.3 |
Matters Needing Attention
- Storage temperature and humidity: 535, 4575% RH. Keep humidity low.
- 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 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 segment R100-R220 |
| A3 | 2023/02/03 | Modified packaging quantity |
| A4 | 2023/05/06 | Updated resistance segment 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 segment intervals |
2508041620_Yohey-YHR2512SE3WR012F4_C49838000.pdf
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