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Thick Film Array Chip Resistors RALEC RTA03-4D220JTP RoHS Compliant Lead Free Electronic Components

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Product Description

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 Number of Terminals Number of Resistors JUMPER (0) Rated Current JUMPER (0) Resistance Max.
RTA02-2D (0402) 1 W 25V 50V 300 1R 4 2 1A 25m MAX.
RTA02-4D (0402) 1 W 25V 50V 300 1R 8 4 1A 25m MAX.
RTA02-8D (0402) 1 W 25V 50V 250 10R10M 16 8 1A 50m MAX.
RTA03-2D (0603) 1 W 50V 100V 200 10R10M 4 2 1A 50m MAX.
RTA03-4D (0603) 1 W 50V 100V 200 1R10M 8 4 1A 25m MAX
RTA02-2C (0402) 1 W 25V 50V 650 3R10 4 2 1A 50m MAX.
RTA02-4C (0402) 1 W 25V 50V 400 1R 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

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

ItemConditionsSpecifications
Temperature Coefficient of ResistanceAccording to JIS-C5201-1 4.8Refer to 3. Specification Table
Short Time OverloadAccording to JIS-C5201-1 4.130.5%, 1%: R=1.0%; 5%: R=2.0%
Insulation ResistanceAccording to JIS-C5201-1 4.6109
Dielectric Withstand VoltageAccording to JIS-C5201-1 4.7No short circuit or burn
Intermittent OverloadAccording to JIS-C5201-1 4.13R=5.0%

Mechanical Performance Test

ItemConditionsSpecifications
Resistance to SolventAccording to JIS-C5201-1 4.29R=0.5%
SolderabilityAccording to JIS-C5201-1 4.17Conductor tinning area > 95%
Resistance to Soldering HeatAccording to JIS-C5201-1 4.18Test Item 1: R%=1.0%; Test Item 2: Conductor tinning area > 95%, no underlying material visible at electrode edge.
Joint Strength of SolderAccording to JIS-C5201-1 4.33R%=1.0%

Environmental Test

ItemConditionsSpecifications
Resistance to Dry HeatAccording to JIS-C5201-1 4.250.5%, 1%: R=1.0%; 5%: R=2.0%
Thermal ShockAccording to MIL-STD 202 Method 107R=1.0%
Loading Life in MoistureAccording to JIS-C5201-1 4.240.5%, 1%: R=2.0%; 5%: R=3.0%
Load LifeAccording to JIS-C5201-1 4.250.5%, 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 (J-STD-020 compliant), highest component temperature 260+5/-0 for 10 seconds. Soldering iron method: 35010 within 3 seconds.
  • Recommended Land Pattern Design (For Reflow Soldering): Design considerations for resistance value changes due to soldering area and amount.
  • Usage Environment Precautions: For general electronic use. RALEC is not responsible for damages in special environments. Confirmation required for applications in high temperature/humidity, corrosive environments (Cl2, H2S, NH3, SO2, NO2), unverified liquids, unverified sealing/coating materials, or post-soldering cleaning with water-soluble detergents.
  • Transient Overload Precautions: Avoid transient overloads that may cause functional loss.
  • Operation and Handling Precautions: Protect resistor edges and protective coating from mechanical stress. Avoid bending of PCB during assembly. Operate within rated power range. Consider pulse load impacts and implement fail-safe design.

Storage and Handling Conditions

  • Storage: 255, 6015% RH for two years.
  • Avoid: Sea breeze, corrosive gases (Cl2, H2S, NH3, SO2, NO2), direct sunlight, condensation.
  • Handling: Maintain correct box orientation, avoid dropping or squeezing to prevent damage.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Beijing Silk Road Enterprise Management Services Co., Ltd.
Location 16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person Sellina

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