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 suitable for a wide range of general electronic uses.
Product Attributes
- Brand: RALEC
- Compliance: RoHS, Lead-Free, Halogen-Free
Technical Specifications
| Type | Rated Power (W) | Max. Rated Voltage (V) | Max. Overload Voltage (V) | T.C.R (ppm/) | Resistance Range | Number of Terminals | Number of Resistors | JUMPER (0) Rated Current (A) | JUMPER (0) Resistance Max. | |
|---|---|---|---|---|---|---|---|---|---|---|
| RTA02-2D (0402) | 1 | 25 | 50 | 300 (1R<10), 200 (10R10M) | 1R<10 (for D), 10R10M (for F/J) | 4 | 2 | 1 | 25m | |
| RTA02-4D (0402) | 1 | 25 | 50 | 300 (1R<10), 200 (10R10M) | 1R<10 (for D), 10R10M (for F/J) | 8 | 4 | 1 | 25m | |
| RTA02-8D (0402) | 1 | 25 | 50 | 250 (10R10M) | 10R10M | 16 | 8 | - | 50m | |
| RTA03-2D (0603) | 1 | 50 | 100 | 200 (10R10M) | 10R10M | 4 | 2 | 1 | - | 50m |
| RTA03-4D (0603) | 1 | 50 | 100 | 200 (22R470K), 200 (1R10M) | 1R10M | 8 | 4 | 1 | 25m | |
| RTA02-2C (0402) | 1 | 25 | 50 | 650 (3R10), 200 (10R<1M) | 3R10 (for D), 10R1M (for F/J) | 4 | 2 | 1 | - | 50m |
| RTA02-4C (0402) | 1 | 25 | 50 | 400 (1R<10), 200 (10R1M) | 1R<10 (for D), 10R1M (for F/J) | 8 | 4 | 1 | - | 50m |
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 |
Plating Thickness
- Nickel Layer (Ni): 2m
- Pure Tin Layer (Sn): 3m (Matte Tin)
Reliability Test Summary
Electrical Performance Tests: Temperature Coefficient of Resistance, Short Time Overload, Insulation Resistance, Dielectric Withstand Voltage, Intermittent Overload.
Mechanical Performance Tests: Resistance to Solvent, Solderability, Resistance to Soldering Heat, Joint Strength of Solder.
Environmental Tests: Resistance to Dry Heat, Thermal Shock, Loading Life in Moisture, Load Life.
Application Notes
Recommended Soldering Conditions:
- Lead Free IR-Reflow Soldering Profile (J-STD-020 compliant): Max component temperature 260+5/-0, 10 seconds.
- Soldering Iron Method: 35010 within 3 seconds.
Recommended Land Pattern Design (For Reflow Soldering): Land pattern design should consider potential resistance value changes due to soldering area and volume.
Usage Environment Precautions: This product is for general electronic use. RALEC is not responsible for damages, costs, or losses incurred from using this product in special environments. Confirmation with RALEC is required for special applications.
Transient Overload Precautions: Be aware of potential functional loss due to transient overload. Avoid applying transient currents exceeding product specifications.
Handling and Operation Precautions: Protect resistor edges and protective coating from mechanical stress. Avoid bending the PCB which can cause mechanical stress on resistors. Operate within the rated power range to prevent damage from overheating. Evaluate and confirm in the actual mounting state, and ensure system safety with fail-safe design.
Storage and Handling Conditions
- Storage: 255, 6015% RH for two years.
- Avoid harsh environments: sea breeze, corrosive gases (Cl2, H2S, NH3, SO2, NO2), direct sunlight, condensation.
- Handle with care: maintain correct box orientation, avoid dropping or squeezing to prevent damage.
2411221110_RALEC-RTA02-4D330JTH_C102634.pdf
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