Product Overview
The RAxxx Series Metal Alloy Current Sensing Chip Resistors from Pakermicro are designed for high stability and reliability. These resistors feature ultra-low resistance values, excellent temperature coefficient characteristics, and high power ratings up to 3 watts. They are halogen-free, RoHS compliant, and Pb-free, meeting AEC-Q200 provisions. Applications include 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)
- Compliance: Halogen free, RoHS compliant, Pb free, AEC-Q200 relevant provisions
- Mounting Position: Any
Technical Specifications
| Model | Rated Power | Resistance Range | TCR (ppm/) | Insulation Resistance | Operating Temperature Range |
|---|---|---|---|---|---|
| RA1206 | 1W | 1m~100m | 1m: 350 2m~100m: 50 | >100M | -55~+170 |
| RA1206 | 1/2W | 110m~200m | 50 | ||
| RA2512 | 2W, 3W | 0.5m~500m | 0.5 m 1m: 350 2m~500m: 50 | ||
| RA0805 | 1/4W, 1/2W | 1m (350) 2 m~20m (50) | 1m: 350 2 m~20m: 50 | >100M | -55~+170 |
Packing Information
| Model | Packing Code | Quantity | Reel Dimensions (mm) |
|---|---|---|---|
| RA0805 | G (reel) | 5000pcs | 1782.00 (A) 60.001.00 (B) 13.500.50 (C) 11.400.10 (F) 9.000.3 (W) |
| RA1206 | G (reel) | 5000pcs | 1782.00 (A) 60.001.00 (B) 13.500.50 (C) 11.400.10 (F) 9.000.3 (W) |
| RA2512 | G (reel) | 4000pcs | 1782.00 (A) 60.001.00 (B) 13.500.50 (C) 15.401.00 (F) 13.000.3 (W) |
Package Outline Dimensions
| Type | L (mm) | W (mm) | T (mm) | E (mm) |
|---|---|---|---|---|
| RA1206 | 3.20.20 | 1.60.20 | 0.600.20 | 0.500.20 |
| RA2512 | 6.40.20 | 3.20.20 | 0.800.20 | :2.200.20 :0.900.20 |
| RA0805 | 2.00.10 | 1.250.10 | 0.600.20 | 0.400.20 |
Recommended Solder Pad Dimensions
| Type | Resistance Range | A (mm) | B (mm) | C (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 |
Performance Reliability Test Methods
| Test Item | Test Methods | Test Conditions | R% (Max) |
|---|---|---|---|
| Solderability | IEC60115-1 4.18 | Dip terminal in flux, then in soldering bath at 2455 for 2~3sec. | < 1% |
| Resistance to soldering heat | IEC60115-1 4.23.4 | Dip terminal in flux, then in soldering bath at 2605 for 101sec. | < 1% |
| Mechanical Shock | MIL-STD-202 METHOD 213 | Resistance to 100g's, Normal duration 6ms, half sine shock pulse. | < 1% |
| Terminal Bending | AEC-Q200-005 | Min 2mm deflection, 60sec. | < 1% |
| Terminal Strength | AEC-Q200-006 | Applied a 17.7N (1.8Kg) for 601seconds. | < 1% |
| ESD test | AEC-Q200-002 | 2KV, 2times/1s | < 1% |
| Biased Humidity | IEC60115-1 4.13 | 1000 hours, 85/85%RH, 10% of operating power. | < 1% |
| Operational life | IEC60115-1 4.8 | 1000 hours, 85/85%RH, 10% of operating power. | < 1% |
| Temperature cycling | MIL-STD-202 METHOD 107 | 1000 Cycles (-55 to +125). | < 1% |
| Short-time overload | MIL-STD-202 METHOD 108 | Applied 5.0 times of rated power for 5 second. | < 1% |
| High Temperature Exposure | JESD22 Method JA-104 | 1000 hrs. @T=125. | < 1% |
| Low Temperature operation | MIL-STD-202 METHOD 103 | 45 min. @T=-55 . | < 1% |
| Resistance to vibration | MIL-STD-202 METHOD 204 | 5g's for 20min. 12 cycles, 10-2000Hz. | < 1% |
| Thermal shock | J-STD-002B test B | Use -55/+125C, Number of cycles is 300. Devices mounted. Maximum transfer time is 20 seconds. | < 1% |
Temperature Coefficient TCR
TCR=(R-R0)/(t-t0)R0 106 (ppm)
Where R0 is resistance at room temperature, R is resistance at +125 or +155, t0 is room temperature, and t is test temperature (+125 or +155).
2511271355_PAKER-RA2512F3R009G_C53054977.pdf
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