RTA Series Thick Film Array Chip Resistors

The RTA series thick film array chip resistors are lead-free and halogen-free, compliant with RoHS directives. These resistors are designed for general electronic applications.

Product Attributes

• Brand: RALEC
• Certifications: RoHS compliant, Lead-free, Halogen-free

Technical Specifications

Dimensions (mm)

Type Name Example

RTA 02 - 4 D 100 J TH

• Type: Thick Film Array Chip Resistor
• Size: 02 (0402), 03 (0603)
• Number of Circuits: 2 (2 circuits), 4 (4 circuits), 8 (8 circuits)
• Electrode Structure: D (Convex electrode), C (Concave electrode)
• Resistance Value: 3-digit (e.g., 10=100), 4-digit (e.g., 10.2=10R2), JUMPER=000/0000
• Tolerance: D (0.5%), F (1%), J (5%)
• Packaging Type: TH (2 mm Pitch Carrier Tape 10000 pcs), H2 (2 mm Pitch Carrier Tape 20000 pcs), H3 (2 mm Pitch Carrier Tape 30000 pcs), H4 (2 mm Pitch Carrier Tape 40000 pcs), 5H (2 mm Pitch Carrier Tape 50000 pcs), TP (4 mm Pitch Carrier Tape 5000 pcs), P2 (4 mm Pitch Carrier Tape 10000 pcs), P3 (4 mm Pitch Carrier Tape 15000 pcs), P4 (4 mm Pitch Carrier Tape 20000 pcs)

Structure Diagram

D (Convex) Type: 1. Ceramic substrate, 2. 2nd Protective coating, 3. Bottom inner electrode, 4. Top inner electrode, 5. Resistive layer, 6. 1st Protective coating, 7. Terminal inner electrode, 8. Marking, 9. Ni plating, 10. Sn plating

C (Concave) Type: 1. Ceramic substrate, 2. 2nd Protective coating, 3. Bottom inner electrode, 4. Top inner electrode, 5. Resistive layer, 6. 1st Protective coating, 7. Terminal inner electrode, 8. Marking, 9. Ni plating, 10. Sn plating

Reliability Test Items

Electrical Performance Test: Temperature Coefficient of Resistance, Short Time Overload, Insulation Resistance, Dielectric Withstand Voltage, Intermittent Overload.

Mechanical Performance Test: Resistance to Solvent, Solderability, Resistance to Soldering Heat, Joint Strength of Solder.

Environmental Test: Resistance to Dry Heat, Thermal Shock, Loading Life in Moisture, Load Life.

Plating Thickness

• Nickel Layer (Ni): 2m
• Pure Tin Layer (Tin): 3m
• Plated tin is matte tin.

Technical Application Notes

• Recommended Soldering Conditions: Lead Free IR-Reflow Soldering Profile (J-STD-020 compliant, max temp 260+5/-0, 10 sec), Soldering Iron Method (35010 within 3 sec).
• Recommended Land Pattern Design: Designs provided for various types (RTA02-2D, RTA02-4D, RTA02-8D, RTA03-2D, RTA03-4D, RTA02-2C, RTA02-4C).
• Usage Environment Precautions: General electronic use. Not recommended for special environments (high temp/humidity, corrosive gases, unverified liquids, unverified sealing/coating, specific cleaning agents) without confirmation.
• Transient Overload Precautions: Avoid transient overloads that exceed product specifications.
• Handling Precautions: Protect resistor edges and protective coating from mechanical stress. Avoid PCB bending stress. Operate within rated power. Consider pulse load impacts. Evaluate and confirm in actual application for safety.

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 crushing to prevent damage.

Marking

Outer box marked with Electronic Information Product Pollution Control Logo and Packaging Recycling Logo (for export to mainland China).

Legal Disclaimer

RALEC and its distributors/agents disclaim liability for errors or omissions in product information. Information may be changed without notice. RALEC makes no warranties regarding suitability for specific purposes or continued production. RALEC is not liable for any damages arising from the use of its products. Products are defined for general electronic use and not for automotive, medical life support, or applications where failure could cause injury or death. Technical advice is provided free of charge and at the buyer's risk. Buyer assumes all risks for combining products with other materials or implementing them in processes. RALEC reserves the right to modify content without notice; changes will be announced via ECN.