Product Overview
This document details the Approval Specification for Metal Current Sensing Chip Resistors, Type 2512/1206/0805 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, and excellent high-frequency characteristics, complying with RoHS standards.
Product Attributes
- Brand: (Changzhou Pengke Electronics)
- Origin: China
- Material: Metal Alloy
- Certifications: RoHS compliant, Halogen Free
Technical Specifications
| Series | Size | Power Rating | Resistance Range | TCR | Tolerance | Operating Temp. Range | Max. Operating Voltage |
| 2512 DD/XD | 2512 | 2W/3W | 0mR 1m | 350ppm/ | 1%, 2%, 5% | -55 ~ +170 | (P*R) |
| | | 1m<R 2m | 100ppm/ | |
| | | 2m<R 500m | 50 ppm/ | |
| 1206 RC | 1206 | 1W | 0mR 2m | 350ppm/ | 0.5%, 1%, 2%, 3%, 5% | -55 ~ +170 | (P*R) |
| | | 2m<R 200m | 50 ppm/ |
| 0805 RE | 0805 | 0.5W | 5mR 15m | 50ppm/ | 0.5%, 1%, 2%, 3%, 5% | -55 ~ +170 | (P*R) |
Construction and Dimension
| Series | Size (L x W x T) | Electrode Dimension (A) |
| 2512 | 6.40.20 x 3.20.20 x 0.80.20 mm | DD: 2.00.20 mm (R4 m)
XD: 1.00.20 mm (R0.5 m) |
| 1206 | 3.20.20 x 1.60.20 x 0.70.20 mm (0m R<10m)
3.20.20 x 1.60.20 x 0.450.20 mm (10m<R 200m) | 0.60.20 mm |
| 0805 | 2.00.10 x 1.250.10 x 0.50.20 mm | 0.350.20 mm |
Land Pattern Dimensions
| Series | 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 |
| 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 | R (1.0%+0.05m ) |
| Low Temperature Exposure | -552, 1000H, stand for 1H | 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 | B | C | D | E | T1 | T2 |
| 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 |
Reel Dimensions
| Series | D | C | E | T1 | Label |
| 0805 | | | | | |
| 1206 | | | | | |
| 2512 | | | | | |
Label Information
Packaging Quantity: 0805/1206: 5000pcs/Reel, 2512: 4000pcs/Reel. The label shall be marked with: (1) Size, (2) Quantity, (3) LOT.NO., (4) Manufacturers name.
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
Storage: Store in temperature (535) and 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 the product with soldering tip during manual installation.
