Product Overview
This document outlines the Approval Specification for Metal Current Sensing Chip Resistors - Type. These resistors, available in 2512, 1206, and 0805 series, offer high power capabilities up to 3W, low TCR down to 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. Applications include current sensing where precise resistance and high power handling are critical.
Product Attributes
- Brand: Changzhou Pengke Electronics
- Origin: China
- Material: Metal Alloy Resistance
- Certifications: RoHS compliant, Halogen Free
Technical Specifications
| Series | Model | Power | Resistance Range | TCR | Tolerance | Operating Temperature | Max. Voltage |
| 2512 | DD/XD | 2W/3W | 0mR 1m: 350ppm/ 1m<R 2m: 100ppm/ 2m<R 500m: 50 ppm/ | 350ppm/, 100ppm/, 50 ppm/ | 1%, 2%, 5% | -55 ~ +170 | (P*R) |
| 1206 | RC | 1W | 0mR 2m: 350ppm/ 2m<R 200m: 50 ppm/ | 350ppm/, 50 ppm/ | 1%, 2%, 5% | -55 ~ +170 | (P*R) |
| 0805 | RE | 0.5W | 5mR 15m: 50ppm/ | 50ppm/ | 1%, 2%, 5% | -55 ~ +170 | (P*R) |
Construction and Dimension
| Series | L (mm) | W (mm) | T (mm) | A (mm) |
| 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: 0.60.20 10m<R 200m: 0.450.20 |
| 0805 | 2.00.10 | 1.250.10 | 0.50.20 | 0.350.20 |
Land Pattern Dimensions
| Series | a (mm) | b (mm) | L (mm) |
| 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 |
| 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 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 | 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, 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 Packaging Dimensions
| Series | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | T1 (mm) | T2 (mm) |
| 0805 | 1782.0 | 601.0 | 131.0 | 2.00.5 | >22 | 9.01 | / |
| 1206 | 1782.0 | 601.0 | 131.0 | 2.00.5 | >22 | 9.00.3 | 11.4 1.0 |
| 2512 | 1782.0 | 601.0 | 131.0 | 2.00.5 | >22 | 13.0 0.3 | 15.4 1.0 |
Label
Packaging Quantity: 0805/1206: 5000pcs/Reel, 2512: 4000pcs/Reel
Label Marking: Size, Quantity, LOT.NO., Manufacturers name
Recommended Reflow Soldering Profile
| Parameter | Specification |
| 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
Storage: Temperature (535), Humidity (4575% RH). Avoid direct sunlight, moisture, dust, and harmful gases.
Storage Life: 1 year.
Handling: Avoid exceeding rated power. Handle with care to prevent damage. Do not touch product with soldering tip during manual installation.
2509261615_RVR-HIXD25NR001F_C52015884.pdf
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