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 available in various configurations and specifications to meet diverse design needs.
Product Attributes
- Brand: RALEC
- Certifications: RoHS compliant, Halogen-free
- Material: Thick film on ceramic substrate
- Color: Not specified
- Origin: Not specified
Technical Specifications
| Type | Rated Power | Max. Rated Voltage | Max. Overload Voltage | T.C.R (ppm/) | Resistance Range () | Number of Terminals | Number of Resistors | Rated Current (JUMPER 0) | Max. Resistance (JUMPER 0) |
|---|---|---|---|---|---|---|---|---|---|
| RTA02-2D (0402) | 1W | 25V | 50V | 300 (1R<10), 200 (10R10M) | 1R<10, 10R10M | 4 | 2 | 1A | 25m MAX. |
| RTA02-4D (0402) | 1W | 25V | 50V | 300 (1R<10), 200 (10R10M) | 1R<10, 10R10M | 8 | 4 | 1A | 25m MAX. |
| RTA02-8D (0402) | 1W | 25V | 50V | 250 (10R10M) | 10R10M | 16 | 8 | 1A | 50m MAX. |
| RTA03-2D (0603) | 1W | 50V | 100V | 200 (10R10M) | 10R10M | 4 | 2 | 1A | 50m MAX. |
| RTA03-4D (0603) | 1W | 50V | 100V | 200 (22R470K), 200 (1R10M) | 22R470K, 1R10M | 8 | 4 | 1A | 25m MAX. |
| RTA02-2C (0402) | 1W | 25V | 50V | 650 (3R10), 200 (10R<1M) | 3R10, 10R1M | 4 | 2 | 1A | 50m MAX. |
| RTA02-4C (0402) | 1W | 25V | 50V | 400 (1R<10), 200 (10R1M) | 1R<10, 10R1M | 8 | 4 | 1A | 50m MAX. |
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 |
Structure Diagram
See original document for detailed structure diagrams of D(Convex) and C(Concave) types.
Reliability Test Items
Electrical Performance Test
| Item | Conditions | Specifications |
|---|---|---|
| Temperature Coefficient of Resistance | Based on JIS-C5201-1 4.8 | Refer to Specification Table |
| Short Time Overload | Based on JIS-C5201-1 4.13 | 0.5%, 1%: R=1.0%; 5%: R=2.0% |
| Insulation Resistance Test | Based on JIS-C5201-1 4.6 | 109 |
| Dielectric Withstand Voltage | Based on JIS-C5201-1 4.7 | No short circuit or burn marks |
| Intermittent Overload | Based on JIS-C5201-1 4.13 | R=5.0% |
Mechanical Performance Test
| Item | Conditions | Specifications |
|---|---|---|
| Resistance to Solvent | Based on JIS-C5201-1 4.29 | R=0.5% |
| Solderability | Based on JIS-C5201-1 4.17 | Solderable area > 95% |
| Resistance to Soldering Heat | Based on JIS-C5201-1 4.18 | Test Item 1: R%=1.0%; Test Item 2: Solderable area > 95%, no underlying material visible at electrode edge. |
| Joint Strength of Solder | Based on JIS-C5201-1 4.33 | R%=1.0% |
Environmental Test
| Item | Conditions | Specifications |
|---|---|---|
| Resistance to Dry Heat | Based on JIS-C5201-1 4.25 | 0.5%, 1%: R=1.0%; 5%: R=2.0% |
| Thermal Shock | Based on MIL-STD 202 Method 107 | R=1.0% |
| Moisture Load Life | Based on JIS-C5201-1 4.24 | 0.5%, 1%: R=2.0%; 5%: R=3.0% |
| Load Life | Based on JIS-C5201-1 4.25 | 0.5%, 1%: R=2.0%; 5%: R=3.0% |
Plating Thickness
- Nickel Layer (Ni): 2m
- Pure Tin Layer (Sn): 3m (matte tin)
Application Notes
- Recommended Soldering Conditions: Lead Free IR-Reflow Soldering Profile (J-STD-020 compliant), Iron Soldering: 35010 within 3 seconds.
- Recommended Land Pattern Design: Refer to original document for specific land pattern dimensions for various types.
- Usage Environment Precautions: For general electronic use. Not recommended for special environments without confirmation with RALEC.
- Transient Overload Precautions: Avoid transient overloads exceeding product specifications.
- Handling and Operation Precautions: Protect edges and protective layers from mechanical stress. Avoid bending of PCB. Operate within rated power. Consider pulse load impacts.
Storage and Handling Conditions
- Storage Environment: 255, 6015% RH for up to two years.
- Avoid corrosive environments (sea breeze, Cl2, H2S, NH3, SO2, NO2), direct sunlight, and condensation.
- Ensure correct box orientation during handling and storage. Avoid dropping or crushing.
Marking
Outer boxes are marked with Electronic Information Product Pollution Control Mark and Packaging Recycling Mark for export to mainland China.
Disclaimer
RALEC and its distributors/agents (collectively "RALEC") disclaim all liability for any errors, inaccuracies, or incompleteness in product information. RALEC may change product information without notice. RALEC makes no commitment, warranty, or guarantee regarding product suitability for specific purposes or continuous production. RALEC is not liable for any damages, losses, or expenses arising from the use of its products. This product is defined for general electronic use and is not intended for automotive electronics, medical life-support or life-sustaining equipment, or any application where failure could result in personal injury or death. Technical advice provided by RALEC is gratuitous, and the buyer assumes all risks associated with its use. The buyer assumes all risks and liabilities for combining RALEC products with other materials or implementing them in their processes. RALEC reserves the right to modify this content without notice; product changes will be announced via ECN.
2411221110_RALEC-RTA02-4D512JTH_C2991336.pdf
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