Product Overview
The RAxxx Series Metal Alloy Current Sensing Chip Resistors from Pakermicro (Shenzhen) Co., Ltd. are designed for high stability and reliability, featuring ultra-low resistance values and excellent temperature coefficient characteristics. These resistors are constructed with a metal alloy element and housed in a plastic epoxy package (UL: 94V-0). They offer high power ratings up to 3 watts and are halogen-free and RoHS compliant, adhering to AEC-Q200 provisions. Ideal for demanding applications, they are suitable for automotive electronics, current sensing, mobile phones, computers, power supplies, and battery chargers.
Product Attributes
- Brand: Pakermicro ()
- Origin: Shenzhen, China
- Material: Metal Alloy
- Package: Plastic Package Epoxy (UL: 94V-0)
- Certifications/Compliance: Halogen free, RoHS compliant, AEC-Q200 relevant provisions
- Mounting Position: Any
Technical Specifications
| Model | Rated Power | Resistance Range | TCR (ppm/) | Insulation Resistance | Dimensions (L x W x T) mm | Electrode Size (E) mm |
|---|---|---|---|---|---|---|
| RA1206 | 1W | 1m~100m (D, F, G, H, J) 110m~200m (D, F, G, H, J) | 1m: 350 2m~100m: 50 110m~200m: 50 | >100M | 3.20.20 x 1.60.20 x 0.600.20 | 0.500.20 |
| RA2512 | 2W, 3W | 0.5m~500m (D, F, G, H, J) | 0.5 m (), 1m: 350 1m ()~4m (): 50 2m~500m: 50 | >100M | 6.40.20 x 3.20.20 x 0.800.20 | :2.200.20 :0.900.20 |
| RA0805 | 1/4W, 1/2W | 1m (D, F, G, H, J) 2 m~20m (D, F, G, H, J) | 1m: 350 2 m~20m: 50 | >100M | 2.00.10 x 1.250.10 x 0.600.20 | 0.400.20 |
| Operating Temperature Range | -55 to +170 | |||||
| Marking on Resistor's Body (for 0.5% to 5% tolerance) | 4 digits: 'R' denotes 10, followed by three digits for resistance value. | |||||
Performance & Reliability Tests
| Test Item | Test Method | Test Conditions | Resistance Variation (R%) |
|---|---|---|---|
| Temperature Coefficient | IEC60115-1 4.8 | Calculated using R0 at room temp, R at +125 or +155, t0 room temp, t test temp | TCR = (R-R0)/(t-t0) * R0 * 10 (ppm) |
| ESD test | AEC-Q200-002 | 2KV, 2 times/1s | < 1% |
| Solderability | J-STD-002B test B | Dip in flux, then solder bath at 2455 for 2~3sec | < 1% |
| Resistance to soldering heat | IEC60115-1 4.13 | Dip in flux, then solder bath at 2605 for 101sec | < 1% |
| Mechanical Shock | MIL-STD-202 METHOD 213 | 100g's, Normal duration 6ms, half sine shock pulse | < 1% |
| Terminal Strength | AEC-Q200-005 | Applied 17.7N (1.8Kg) for 601 seconds | < 1% |
| Terminal Bending | AEC-Q200-006 | Min 2mm deflection, 60sec | < 1% |
| Biased Humidity | IEC60115-1 4.18 | 85/85%RH, 10% of operating power, 1000 hours | < 1% |
| Operational life | IEC60115-1 4.23.4 | 1000 hours @ 85/85%RH, 10% of operating power | < 1% |
| Temperature cycling | MIL-STD-202 METHOD 107 | 1000 Cycles (-55 to +125), 20 seconds max transfer time | < 1% |
| Short-time overload | Applied 5.0 times of rated power for 5 seconds | < 1% | |
| High Temperature Exposure | 1000 hrs. @ T=125 | < 1% | |
| Low Temperature operation | 45 min. @ T=-55 | < 1% | |
| Thermal shock | MIL-STD-202 METHOD 107 | -55/+125C, 300 cycles | < 1% |
Packing Options
| Type | Dimensions (mm) | Q'ty |
|---|---|---|
| RA0805 | 1782.00 x 60.001.00 x 13.500.50 (Outer Reel) 11.400.10 x 9.000.3 (Inner Reel) | 5000pcs |
| RA1206 | 1782.00 x 60.001.00 x 13.500.50 (Outer Reel) 11.400.10 x 9.000.3 (Inner Reel) | 4000pcs |
| RA2512 | 1782.00 x 60.001.00 x 13.500.50 (Outer Reel) 15.401.00 x 13.000.3 (Inner Reel) | 5000pcs |
Recommended Solder Pad Dimensions
| Type | Resistance Range | A (mm) | B (mm) | C (mm) | F (mm) | W (mm) |
|---|---|---|---|---|---|---|
| RA0805 | 1m~20m | 1.40 | 1.20 | 1.40 | ||
| RA2512 | 0.5m~4m () | 4.00 | 3.10 | 1.80 | ||
| RA2512 | 1m~500m | 4.00 | 2.10 | 4.10 | ||
| RA1206 | 1m~200m | 1.80 | 1.70 |
2508191745_PAKER-RA1206F1R010G_C49652787.pdf
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