Metal Current Sensing Chip Resistors - Type 2512/1206/0805
This specification covers Metal Alloy Resistance Chip Resistors in the 2512, 1206, and 0805 series. These resistors offer high power capabilities up to 3W, low TCR as 50ppm/, and are suitable for reflow and wave soldering. They feature Halogen Free Epoxy, Lead Free Plating, superior mechanical strength, excellent high-frequency characteristics, and are RoHS compliant.
Product Attributes
- Brand: (Changzhou Pengke Electronics)
- Origin: China
- Material: Metal Alloy
- Certifications: RoHS compliant, Halogen Free
Technical Specifications
| Product Category | Size | Rated Power (W) | Resistance Range | TCR (ppm/) | Operating Temp. Range () | Tolerance (%) | Max. Operating Voltage (V) |
| 2512 | DD/XD | 2W/3W | 0m R 1m | 350 | -55 ~ +170 | 1%, 2%, 5% | (P*R) |
| 1m < R 2m | 100 | ||||||
| 2m < R 500m | 50 | ||||||
| 1206 | RC | 1W | 0m R 2m | 350 | -55 ~ +170 | 1%, 2%, 5% | (P*R) |
| 2m < R 200m | 50 | ||||||
| 0805 | RE | 0.5W | 5m R 15m | 50 | -55 ~ +170 | 1%, 2%, 5% | (P*R) |
Construction and Dimension (mm)
| Category | L | W | T | A (DD/XD) |
| 2512 | 6.40.20 | 3.20.20 | 0.80.20 | DD:2.00.20 (R4 m) XD:1.00.20 (R0.5 m) |
| 1206 | 3.20.20 | 1.60.20 | 0.70.20 (0m R<10m) 0.450.20 (10m<R 200m) | 0.60.20 |
| 0805 | 2.00.10 | 1.250.10 | 0.50.20 | 0.350.20 |
Land Pattern Dimensions (mm)
| Category | a | b | L |
| 0805 RE | 1.5 | 1 | 1 |
| 1206 RC | 1.8 | 1.7 | 1.6 |
| 2512 XD | 4 | 2.1 | 4.1 |
| 2512 DD | 4 | 3.1 | 1.3 |
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 |
| Short Time Overload | 5 times rated power, maintain 5s | R 1%+0.05m |
| Insulation resistance | Apply 100V15V DC voltage between electrode and substrate, hold for 60s | > 100 M |
| Withstand voltage | Apply AC voltage of maximum overload voltage between electrode and substrate at approx. 100V/S, hold for 605s | No breakdown or arc |
| Solderability | 2455 tin tank, hold 2s0.5s | At least 95% of electrode surface area covered with new solder |
| Resistance to Soldering Heat | 2605 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 | R (1.0%+0.05m ) |
| Low Temperature Exposure | -552, 1000H | 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) |
Recommended reflow soldering profile
| Parameter | Value |
| Solder | Sn96.5 / Ag3 / Cu0.5 |
| Peak Temperature | 240~260, 10 sec |
| Pre-heating Zone | 150 to 200 , 9030 sec |
| Soldering Zone | 230 or higher, 3010 sec |
Care Note for Storage
Store in a controlled environment (temperature 5-35, humidity 45-75% RH), avoiding direct sunlight, moisture, dust, and harmful gases. Storage life: 1 year.
Care Note for Operating and Handling
Avoid exceeding rated power. Handle with care using tweezers to prevent damage. Do not touch the product with a soldering tip during manual installation.
2512101755_RVR-HIXD25LR0045J_C53144909.pdf
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