RTA Series Thick Film Array Chip Resistors
The RTA series resistors are lead-free, halogen-free, and RoHS compliant thick film array chip resistors designed for general electronic applications. They offer reliable performance and are manufactured to meet stringent quality standards.
Product Attributes
- Brand: RALEC
- Certifications: RoHS compliant, Lead-free, Halogen-free
Technical Specifications
| Type | Rated Power | Max. Rated Voltage | Max. Overload Voltage | T.C.R (ppm/) | Resistance Range | Terminals | Resistors | Rated Current (JUMPER 0) | Max. Resistance (JUMPER 0) |
|---|---|---|---|---|---|---|---|---|---|
| RTA02-2D (0402) | 1W | 25V | 50V | 300 | 1R<10 | 4 | 2 | 1A | 25m MAX. |
| RTA02-4D (0402) | 1W | 25V | 50V | 300 | 1R<10 | 8 | 4 | 1A | 25m MAX. |
| RTA02-8D (0402) | 1W | 25V | 50V | 250 | 10R10M | 16 | 8 | 1A | 50m MAX. |
| RTA03-2D (0603) | 1W | 50V | 100V | 200 | 10R10M | 4 | 2 | 1A | 50m MAX. |
| RTA03-4D (0603) | 1W | 50V | 100V | 200 | 1R10M | 8 | 4 | 1A | 25m MAX |
| RTA02-2C (0402) | 1W | 25V | 50V | 650 | 3R10 | 4 | 2 | 1A | 50m MAX. |
| RTA02-4C (0402) | 1W | 25V | 50V | 400 | 1R<10 | 8 | 4 | 1A | 50m MAX. |
Operating Temperature Range: -55 ~ +155
Dimensions (mm)
| Type | L | W | H | L1 | L2 | P | Q |
|---|---|---|---|---|---|---|---|
| RTA02-2D (0402) | 1.000.10 | 1.000.10 | 0.300.05 | 0.150.10 | 0.250.10 | (0.67) | 0.330.10 |
| RTA02-4D (0402) | 2.000.10 | 1.000.10 | 0.400.10 | 0.200.10 | 0.250.10 | (0.50) | 0.300.10 |
| RTA02-8D (0402) | 4.000.20 | 1.600.10 | 0.400.10 | 0.300.15 | 0.300.10 | (0.50) | 0.250.10 |
| RTA03-2D (0603) | 1.600.15 | 1.600.15 | 0.450.10 | 0.300.15 | 0.300.15 | (0.80) | 0.600.10 |
| RTA03-4D (0603) | 3.200.20 | 1.600.15 | 0.500.10 | 0.300.15 | 0.300.15 | (0.80) | 0.500.10 |
| RTA02-2C (0402) | 1.000.10 | 1.000.10 | 0.300.10 | 0.180.10 | 0.250.10 | (0.50) | 0.300.10 |
| RTA02-4C (0402) | 2.000.10 | 1.000.10 | 0.400.10 | 0.150.10 | 0.250.10 | (0.50) | 0.300.10 |
Reliability Test Items Summary
| Category | Item | Conditions | Specifications |
|---|---|---|---|
| Electrical Performance | Temperature Coefficient of Resistance | JIS-C5201-1 4.8 | Refer to Spec Table |
| Short Time Overload | JIS-C5201-1 4.13 | 0.5%, 1%: R=1.0%; 5%: R=2.0% | |
| Insulation Resistance | JIS-C5201-1 4.6 | 109 | |
| Dielectric Withstand Voltage | JIS-C5201-1 4.7 | No short circuit or burn-out | |
| Intermittent Overload | JIS-C5201-1 4.13 | R=5.0% | |
| Mechanical Performance | Resistance to Solvent | JIS-C5201-1 4.29 | R=0.5% |
| Solderability | JIS-C5201-1 4.17 | Soldered area > 95% | |
| Resistance to Soldering Heat | JIS-C5201-1 4.18 | Resistance change R%=1.0%; Soldered area > 95% | |
| Environmental Test | Resistance to Dry Heat | JIS-C5201-1 4.25 | 0.5%, 1%: R=1.0%; 5%: R=2.0% |
| Thermal Shock | MIL-STD 202 Method 107 | R=1.0% | |
| Loading Life in Moisture | JIS-C5201-1 4.24 | 0.5%, 1%: R=2.0%; 5%: R=3.0% | |
| Load Life | JIS-C5201-1 4.25 | 0.5%, 1%: R=2.0%; 5%: R=3.0% |
Plating Thickness
- Nickel Layer (Ni): 2m
- Pure Tin Layer (Tin): 3m (Matte Tin)
Technical Application Notes
Recommended Soldering Conditions:
- Lead Free IR-Reflow Soldering Profile (Compliant with J-STD-020): Max component temperature 260+5/-0, 10 seconds.
- Soldering Iron Method: Within 35010, 3 seconds.
Recommended Land Pattern Design (For Reflow Soldering): Land pattern dimensions vary by resistor type. Please refer to the datasheet for specific dimensions (A, B, P, Q1, Q2).
Environmental Considerations: This product is for general electronic use. RALEC is not responsible for damages, costs, or losses incurred from using this product in special environments. For applications in high temperature/humidity, corrosive atmospheres (sea breeze, Cl2, H2S, NH3, SO2, NO2), unverified liquids, or with unverified resins/coatings, confirmation with RALEC is required.
Transient Overload: Be aware of potential functional loss due to transient overloads. Avoid applying transient currents exceeding product specifications during manufacturing and storage.
Handling and Operation: Avoid mechanical stress on resistor edges and protective layers. Be cautious of PCB bending during assembly. Operate within the rated power range to prevent damage from overheating. Evaluate and confirm performance in your specific application and implement fail-safe designs.
Storage and Handling Conditions
- Storage Environment: 255, 6015% RH for two years.
- Avoid corrosive environments (sea breeze, Cl2, H2S, NH3, SO2, NO2), direct sunlight, and condensation.
- Ensure correct box orientation during transport and storage. Avoid dropping or crushing boxes to prevent damage to electrodes or the body.
2411221110_RALEC-RTA03-4D000JTP_C102642.pdf
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