Metal Alloy Resistance 2512 Series with Yohey YHR2512LE3WR003F4 Large Electrode Resistor 3W Power Rating
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Product Description
Product Overview
The Yuanhui Electronics Technology (Jiangsu) Co., Ltd. 2512 Alloy Resistance Specification details the Metal Alloy Resistance 2512 Series. These resistors comply with RoHS requirements and undergo vehicle-specific AEC-Q200 tests. They feature parasitic inductance less than or equal to 5nH. Available in LE (large electrode) and SE (small electrode) types, they offer various power ratings, resistance tolerances, and resistance ranges suitable for demanding applications.
Product Attributes
- Brand: YHR (Yuanhui)
- Origin: Jiangsu, China
- Certifications: RoHS, AEC-Q200
- Material: Purple Copper (), MnCu, CuNi, Kama (specific to resistance range and type)
Technical Specifications
| Type | Product Type | Resistor Size | Power | Resistance Tolerance | Resistance Range | Material | TCR | Operating Temperature Range | Insulation Resistance | Max Operating Voltage (V) |
| LE | Large Electrode | 2512 | 3W/4W | F: 1%, G: 2%, J: 5% | <0.45m R000, R0005RR004 | Purple Copper / MnCu | 350ppm/ (for R<1m), 50ppm/ (for 1mR 4m) | -55~ +170 | Over 100M | (P*R) |
| SE | Small Electrode | 2512 | 2W/3W/4W | D: 0.5%, F: 1%, G: 2%, J: 5% | R001RR020 (2W/3W/4W), R220RR500 (2W) | MnCu, CuNi, Kama | 350ppm/ (for 1mR 1.5m), 50 ppm/ (for 2mR 20m, 20m<R 150m, 150m<R 220m, 220m<R 400m, 400m<R 500m) | -55~ +170 | Over 100M | (P*R) |
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 |
| 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, then measure insulation resistance | > 100 M |
| Withstand voltage | AC voltage with effective value of max overload voltage applied 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, test resistance value | R (1.0%+0.05m) |
| Low Temperature Exposure | -552, 1000H, stand for 1H, test 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) |
Packaging Dimensions
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
- Store in a controlled environment: temperature 5-35, humidity 45-75% RH. Keep humidity low.
- Avoid direct sunlight exposure.
- Do not store in humid, dusty environments or areas with 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 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 segments |
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina