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 a reliable solution for various circuit designs.
Product Attributes
- Brand: RALEC
- Certifications: RoHS compliant
- 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 | JUMPER (0) Rated Current | JUMPER (0) Resistance |
|---|---|---|---|---|---|---|---|---|---|
| RTA02-2D (0402) | 1 W | 25V | 50V | 300 (1R<10), 200 (10R10M) | 1R<10 (D:0.5%), 10R10M (D:0.5%, F:1%, J:5%) | 4 | 2 | 1A | 25m MAX. |
| RTA02-4D (0402) | 1 W | 25V | 50V | 300 (1R<10), 200 (10R10M) | 1R<10 (D:0.5%), 10R10M (D:0.5%, F:1%, J:5%) | 8 | 4 | 1A | 25m MAX. |
| RTA02-8D (0402) | 1 W | 25V | 50V | 250 (10R10M) | 10R10M (D:0.5%, F:1%, J:5%) | 16 | 8 | 1A | 50m MAX. |
| RTA03-2D (0603) | 1 W | 50V | 100V | 200 (10R10M) | 10R10M (D:0.5%, F:1%, J:5%) | 4 | 2 | 1A | 50m MAX. |
| RTA03-4D (0603) | 1 W | 50V | 100V | 200 (22R470K) | 1R10M (D:0.5%, F:1%, J:5%) | 8 | 4 | 1A | 25m MAX. |
| RTA02-2C (0402) | 1 W | 25V | 50V | 650 (3R10), 200 (10R<1M) | 3R10 (D:0.5%), 10R1M (D:0.5%, F:1%, J:5%) | 4 | 2 | 1A | 50m MAX. |
| RTA02-4C (0402) | 1 W | 25V | 50V | 400 (1R<10), 200 (10R1M) | 1R<10 (D:0.5%), 10R1M (D:0.5%, F:1%, J:5%) | 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 |
Reliability Test Items
| Category | Item | Conditions | Specifications |
|---|---|---|---|
| Electrical Performance Test | Temperature Coefficient of Resistance | JIS-C5201-1 4.8 | NA |
| 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 or burn | |
| Intermittent Overload | JIS-C5201-1 4.13 | R=5.0% | |
| Mechanical Performance Test | 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 | Item 1: R%=1.0%; Item 2: Soldered area > 95%, no underlying material visible at electrode edge | |
| Joint Strength of Solder | Bending Test | JIS-C5201-1 4.33 | R%=1.0% |
| 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% | |
| Moisture Load Life | 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 (Sn): 3m (Matte tin)
Technical Application Notes
Recommended Soldering Conditions:
- Lead Free IR-Reflow Soldering Profile (J-STD-020): Max part temperature 260+5/-0, 10 seconds.
- Soldering Iron Method: Within 3 seconds at 35010.
Recommended Land Pattern Design (For Reflow Soldering): Varies by type. Refer to the original document for detailed diagrams and 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 due to use in special environments. For applications in high temperature/humidity, corrosive atmospheres (sea breeze, Cl2, H2S, NH3, SO2, NO2), non-verified liquids, or with non-verified sealing/coating materials, confirmation with RALEC is required. Cleaning after soldering is recommended, even with no-clean flux.
Transient Overload Note: Be aware of transient overloads that may cause functional loss. Protect products from transient currents exceeding specifications during manufacturing and storage.
Handling and Operation Notes: Avoid mechanical stress on resistor edges and protective layers. Be careful when separating or fixing PCBs to prevent stress on resistors. Operate within rated power limits; exceeding them can cause damage due to temperature rise. For applications with high pulse load impacts, set up the operating environment beforehand. Evaluate and confirm in your actual application, ensuring fail-safe design for system safety.
Storage and Handling Conditions
- Storage Environment: 255, 6015% RH for up to two years.
- Avoid harsh environments: sea breeze, corrosive gases (Cl2, H2S, NH3, SO2, NO2), direct sunlight, condensation.
- Handle boxes with correct orientation; avoid dropping or crushing to prevent damage to electrodes or the body.
Marking
Outer boxes for export to mainland China will be marked with the Electronic Information Product Pollution Control Mark and Packaging Recycling Mark.
Attachment
- Document Revision Record Table (QA-QR-027)
Legal Disclaimer
RALEC and its distributors/agents (collectively "RALEC") assume no liability for any errors, inaccuracies, or incompleteness in product information. RALEC may change information without notice. RALEC makes no commitment, warranty, or guarantee regarding product suitability for special purposes or continued production. To the maximum extent permitted by law, RALEC disclaims all liability for application/use of products, lost profits, direct, indirect, special, punitive, consequential, or incidental damages, and all implied warranties, including fitness for a particular purpose, non-infringement, and merchantability. This product is defined for general electronic use and is not suitable for automotive electronics, medical life-support/sustaining equipment, or any application where failure could cause injury or death. Technical advice provided by RALEC is gratuitous; RALEC assumes no obligation or liability for its use. The buyer assumes all risks and liabilities for the use of RALEC products in combination with other materials or processes. RALEC reserves the right to modify content without notice; product changes will be announced via ECN.
2411221110_RALEC-RTA03-4D105JTP_C102648.pdf
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