Product Overview
The RAxxx Series Metal Alloy Current Sensing Chip Resistors from Pakermicro (Shenzhen) Co., Ltd. are designed for high stability and reliability. These resistors feature an epoxy plastic package (UL: 94V-0) and are halogen-free and RoHS compliant. They offer ultra-low resistance values, excellent temperature coefficient characteristics, and high power ratings up to 3 watts. The series is AEC-Q200 relevant. 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
- Mounting: Any Position
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 | >100M | -55~+170 |
| RA0805 | 1/2W | 2 m~20m | 50 |
Packing Information
| Type | Packing Code | Description |
|---|---|---|
| RAxxx Series | G | Reel () |
| RAxxx Series | V | Bulk () |
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 |
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 resistance.
| R-value | Code | R-value | Code | R-value | Code | R-value | Code |
|---|---|---|---|---|---|---|---|
| 0.5m | R50m | 25m | R025 | 80m | R080 | 200m | R200 |
| 1m | R001 | 30m | R030 | 90m | R090 | 220m | R220 |
| 1.5m | 1R5m | 35m | R035 | 100m | R100 | 250m | R250 |
| 2m | R002 | 40m | R040 | 120m | R120 | 270m | R270 |
| 3m | R003 | 50m | R050 | 130m | R130 | 300m | R300 |
| 5m | R005 | 57m | R057 | 140m | R140 | 330m | R330 |
| 10m | R010 | 60m | R060 | 150m | R150 | 360m | R360 |
| 15m | R015 | 68m | R068 | 160m | R160 | 400m | R400 |
| 20m | R020 | 75m | R075 | 180m | R180 | 500m | R500 |
Performance and Reliability Test Methods
| Test Item | Test Methods | Test Conditions | R% |
|---|---|---|---|
| Solderability | IEC60115-1 4.18 | Dip terminal in flux, then into soldering bath at 2455 for 2~3sec. | < 1% |
| Resistance to soldering heat | MIL-STD-202 Method 108 | Dip terminal in flux, then into soldering bath at 2605 for 101sec. | < 1% |
| Mechanical Shock | MIL-STD-202 METHOD 213 | Resistance to 100g's, Normal duration is 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 4.23.4 | 1000 hours, 85/85%RH. 10% of operating power. | < 1% |
| Operational life | IEC60115-1 4.13 | 1000 hours @ 70, applied rated current for 1.5H and rested for 0.5H repeatedly. | < 1% |
| Temperature cycling | MIL-STD-202 METHOD 107 | 100 Cycles (-55 to +125). Devices mounted. Maximum transfer time is 20 seconds. | < 1% |
| Short-time overload | JES D22 Method JA-104 | Applied 5.0 times of rated power for 5 second. | < 1% |
| High Temperature Exposure | MIL-STD-202 METHOD 103 | 1000 hrs. @T=125. | < 1% |
| Low Temperature operation | MIL-STD-202 METHOD 108 | 45 min. @T=-55 . | < 1% |
| Thermal shock | J-STD-002B test B | use -55/+125C, Number of cycles is 300. | < 1% |
| Vibration | MIL-STD-202 METHOD 204 | 5g's for 20min. 12 cycles, 10-2000Hz. | < 1% |
Temperature Coefficient
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-RA2512F3R008G_C53054976.pdf
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