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Specifications
Power(Watts):
2W
Resistance:
20mΩ
Type:
Alloy Resistor
Temperature Coefficient:
±50ppm/℃
Tolerance:
±1%
Mfr. Part #:
YHR2512SE2WR020F4
Package:
2512
Key Attributes
Model Number:
YHR2512SE2WR020F4
Product Description
Product Overview
The Yuanhui Electronics Technology (Jiangsu) Co., Ltd. 2512 Alloy Resistance series offers high-performance metal alloy resistors compliant with RoHS requirements and vehicle-specific AEC-Q200 tests. These resistors feature parasitic inductance less than or equal to 5 nH and are available in LE (large electrode) and SE (small electrode) types, with various power ratings, resistance tolerances, and resistance ranges.
Product Attributes
- Brand: YHR
- Origin: Yuanhui Electronics Technology (Jiangsu) Co., Ltd.
- Certifications: RoHS, AEC-Q200
- Material: MnCu, CuNi, Kama (depending on resistance range and type)
Technical Specifications
| Type | Product Type | Resistor Size | Power | Resistance Tolerance | Resistance Range | Material | TCR | Operating Temperature Range | Insulation Resistance | Maximum Operating Voltage (V) |
| LE | Metal Alloy Resistance 2512 Series | 2512 | 3W/4W | F: 1%, G: 2%, J: 5% | 0.45m R000, 0.5mR4m | MnCu | 350ppm/ (for R<1m), 50ppm/ (for 1mR4m) | -55~ +170 | Over 100M | (P*R) |
| SE | Metal Alloy Resistance 2512 Series | 2512 | 2W/3W/4W | F: 1%, G: 2%, J: 5% | 0.2m R<1m (for 2W/3W), 1mR220m (for 2W/3W), 220m| MnCu (for R220m), CuNi (for 220m | 350ppm/ (for 1mR1.5m), 50 ppm/ (for 2mR220m), 50 ppm/ (for 220m | -55~ +170 | Over 100M | (P*R) | |
Construction and Dimension
| Product Type | Illustration | Size (L x W x E x H) | Legend |
| 2512 LE | | 6.40.2 x 3.20.2 x 2.20.2 x 0.80.08 | L, W, E, H |
| 2512 SE | | 6.40.2 x 3.20.2 x 1.00.2 x 0.80.08 | L, W, E, H |
Reliability Tests
| Project | Test Method (Refer to IEC 60115, 60068; JIS-C 5201-1) | Specifications and Requirements |
| Temperature coefficient (TCR) | Resistance values were measured at 25(T1, R1) and 125(T2, R2), and TCR was 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 60 seconds, then measure insulation resistance | > 100 M |
| Withstand voltage | An alternating current with an effective value of the maximum overload voltage is applied between the electrode and the substrate at a rate of approximately 100V/S, maintaining 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 | R(0.5%+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, test the resistance value | R (1.0%+0.05m) |
| Low Temperature Exposure | -552, 1000H, stand for 1H, test the resistance value | 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) |
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
- Chip resistors shall be stored in a room where temperature and humidity must be controlled (temperature 5 to 35, humidity 45 to 75% RH). However, humidity should be kept as low as possible.
- Chip resistors shall be stored such that direct sunlight does not hit them.
- Chip resistors shall not be stored in environments with moisture, dust, or harmful gases (Hydrogen chloride, sulfurous acid gas, and Hydrogen sulfide) that will make solderability inferior.
- 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 explanation corresponding to resistance segment paragraphs |
2508041620_Yohey-YHR2512SE2WR020F4_C49837993.pdf
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