Product Overview
This document specifies 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, excellent high-frequency characteristics, and comply with RoHS standards.
Product Attributes
- Brand: Changzhou Pengke Electronics
- Origin: China
- Material: Metal Alloy
- Certifications: RoHS compliant, Halogen Free
Technical Specifications
| Product Category | Rated Power | Resistance Range | TCR | Operating Temperature Range | Resistance Tolerance | Insulation Resistance | Max Operating Voltage (V) |
| 2512 DD/XD | 2W/3W | 0mR 1m | 350ppm/ | -55 ~ +170 | F:1% G:2% J:5% | Over 100M | (P*R) |
| 1m<R 2m | 100ppm/ | ||||||
| 2m<R 500m | 50 ppm/ | ||||||
| 1206 RC | 1W | 0mR 2m | 350ppm/ | -55 ~ +170 | F:1% G:2% J:5% | Over 100M | (P*R) |
| 2m<R 200m | 50 ppm/ | ||||||
| 0805 RE | 0.5W | 5mR 15m | 50ppm/ | -55 ~ +170 | F:1% G:2% J:5% | Over 100M | (P*R) |
Construction and Dimension
| Category | 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) 0.450.20 (10m<R 200m) | 0.60.20 |
| 0805 | 2.00.10 | 1.250.10 | 0.50.20 | 0.350.20 |
Land Pattern Dimensions
| Category | 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 |
| Temperature coefficient (TCR) | Measured at 25(T1, R1) and 125(T2, R2), TCR=(R2-R1)/(R1(T2-T1))*10^6 | 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 60 seconds, then measure insulation resistance | > 100 M |
| Withstand voltage | AC voltage with effective value of maximum overload voltage applied between electrode and substrate at approx. 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 | 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 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) |
Tape Packaging Dimensions
| Type | 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 |
Reel Dimensions
| Type | D (mm) | C (mm) | E (mm) | T1 (mm) |
| 0805 | 178 | 60 | 13 | 9.0 |
| 1206 | 178 | 60 | 13 | 9.0 |
| 2512 | 178 | 60 | 13 | 13.0 |
Label
The following items shall be marked on the reel:
- Size
- Quantity: 0805/1206: 5000pcs/Reel, 2512: 4000pcs/Reel
- LOT.NO.
- Manufacturers name
Recommended Reflow Soldering Profile
1. Solder: Sn96.5 / Ag3 / Cu0.5
2. Peak Temperature: 240~260, 10 sec
3. Pre-heating Zone: 150 to 200 , 9030 sec
4. Soldering Zone: 230 or higher, 3010 sec
Care Note
Storage:
Store in a controlled environment (temperature 535, relative humidity 4575% RH). Avoid direct sunlight, moisture, dust, and harmful gases. Storage life: 1 year.
Operating and Handling:
Avoid exceeding normal rated power. Handle with care to prevent damage to the protective layer or resistance body. Do not touch the product with the soldering tip during manual installation.
2512101755_RVR-HIXD25NR010J_C53144959.pdf
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