Product Overview
The RAxxx Series Metal Alloy Current Sensing Chip Resistors from Pakermicro are designed for high stability and reliability, featuring ultra-low resistance values and excellent temperature coefficient characteristics. These resistors offer high power ratings up to 3 watts and are constructed with a metal alloy element in an epoxy plastic package (UL: 94V-0). They are halogen-free, RoHS compliant, and Pb-free, meeting AEC-Q200 provisions. Ideal for automotive electronics, current sensing, mobile phones, computers, power supplies, and battery chargers, these chip resistors provide precise current measurement in demanding applications.
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 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 |
Marking on the Resistor's Body
For 0.5%, 1%, 2%, 3%, 5% tolerance products, the marking is 4 digits. The first letter 'R' denotes 10-3. The other three digits declare the resistance value.
| R-value Code | Resistance Value | R-value Code | Resistance Value | R-value Code | Resistance Value | R-value Code | Resistance Value |
|---|---|---|---|---|---|---|---|
| R50m | 0.5m | R025 | 25m | R080 | 80m | R200 | 200m |
| R001 | 1m | R030 | 30m | R090 | 90m | R220 | 220m |
| 1R5m | 1.5m | R035 | 35m | R100 | 100m | R250 | 250m |
| R002 | 2m | R040 | 40m | R120 | 120m | R270 | 270m |
| R003 | 3m | R050 | 50m | R130 | 130m | R300 | 300m |
| R005 | 5m | R057 | 57m | R140 | 140m | R330 | 330m |
| R010 | 10m | R060 | 60m | R150 | 150m | R360 | 360m |
| R015 | 15m | R068 | 68m | R160 | 160m | R400 | 400m |
| R020 | 20m | R075 | 75m | R180 | 180m | R500 | 500m |
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 2~3 sec. | < 1% |
| Resistance to soldering heat | IEC60115-1 4.23.4 | Dip terminal in flux, then in soldering bath at 2605 for 101 sec. | < 1% |
| Mechanical Shock | MIL-STD-202 METHOD 213 | Resistance to 100g's, Normal duration 6ms, half sine shock pulse. | < 1% |
| Resistance to Vibration | MIL-STD-202 METHOD 204 | 5g's for 20min, 12 cycles, 10-2000Hz. | < 1% |
| Terminal Strength | AEC-Q200-006 | Applied 17.7N (1.8Kg) for 601 seconds. | < 1% |
| Terminal Bending | AEC-Q200-005 | Min 2mm deflection, 60 sec. | < 1% |
| Biased Humidity | JESD22 Method JA-104 | 1000 hours, 85/85%RH. 10% of operating power. | < 1% |
| Operational life | IEC60115-1 4.13 | 1000 hours, 85/85%RH. 10% of operating power. | < 1% |
| Temperature cycling | MIL-STD-202 METHOD 107 | 300 cycles (-55 to +125). Max transfer time 20 seconds. | < 1% |
| Short-time overload | IEC60115-1 4.8 | Applied 5.0 times of rated power for 5 seconds. | < 1% |
| High Temperature Exposure | MIL-STD-202 METHOD 108 | 1000 hrs @ T=125. | < 1% |
| Low Temperature operation | MIL-STD-202 METHOD 103 | 45 min @ T=-55 . | < 1% |
| ESD test | AEC-Q200-002 | 2KV, 2 times/1s | < 1% |
Additional Information
- Operating Temperature Range: -55 to +170.
- Rated Current Calculation: I = sqrt(P / R). If calculated value exceeds maximum working current, the maximum working current shall be regarded as rated current.
- Power Derating: Maximum load power should be reduced when operating in ambient temperatures above 70 C, as per derating curve.
2508191745_PAKER-RA2512F3R004G_C49652790.pdf
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