Equivalent & Substitute Parts for RC1005J430CS

Part Overview

The RC1005J430CS is a 43 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.063W (1/16W) in a 0402 (1005 Metric) surface mount package. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package form factor and operating parameters.

Substiute Parts

RC1005J430CS

Samsung Electro-MechanicsIn Stock: 1009RC1005J430CS Datasheet

Current PartRFQ

RC0402JR-0743RL

YAGEOIn Stock: 30632RC0402JR-0743RL Datasheet

DirectRFQ

ERJ-2RKF43R0X

Panasonic Electronic ComponentsIn Stock: 133339ERJ-2RKF43R0X Datasheet

UpgradeRFQ

RMCF0402JT43R0

Stackpole Electronics IncIn Stock: 30650RMCF0402JT43R0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005J430CS are classified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Resistance value: 43 Ohms (exact match required)
• Package form factor: 0402 (1005 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Number of terminations: 2 (exact match required)
• RoHS3 compliance and MSL 1 rating (compliance match required)

Allowable Variations:

• Tolerance: ±5% (direct equivalent) or ±1% (upgrade specification)
• Power rating: 0.063W (direct equivalent) or 0.1W (upgrade specification)
• Manufacturer: Different manufacturers with identical specifications
• Features: Moisture Resistant (standard) or Automotive AEC-Q200 (enhanced qualification)

Three substitute parts meet these criteria with varying upgrade levels.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitutes:

RC0402JR-0743RL (YAGEO) and RMCF0402JT43R0 (Stackpole) maintain identical electrical specifications to the RC1005J430CS. Both are Active product status with full RoHS3 compliance and MSL 1 rating. RC0402JR-0743RL provides standard moisture-resistant thick film construction. RMCF0402JT43R0 includes Automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability without specification upgrades.

Upgrade Substitute:

ERJ-2RKF43R0X (Panasonic) offers enhanced specifications with ±1% tolerance (versus ±5%) and 0.1W power rating (versus 0.063W). This component is qualified to Automotive AEC-Q200 standard. Selection of this upgrade is appropriate when circuit design permits tighter tolerance specifications or when higher power dissipation margin is required within the same package footprint.

All substitute parts are Active product status with identical package dimensions, termination count, and operating temperature range. Selection between direct equivalents depends on manufacturer availability and supply chain requirements. Upgrade selection depends on circuit tolerance and power margin requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0402JR-0743RL replace RC1005J430CS in any application?

A: Yes. RC0402JR-0743RL is a direct equivalent with identical resistance value (43 Ohms), tolerance (±5%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). Both components are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between RMCF0402JT43R0 and RC1005J430CS?

A: Both components share identical electrical specifications and package form factor. RMCF0402JT43R0 includes Automotive AEC-Q200 qualification, indicating enhanced manufacturing process control and reliability testing. This qualification does not alter electrical performance but provides additional quality assurance for automotive applications.

Q: When should ERJ-2RKF43R0X be selected instead of the original part?

A: ERJ-2RKF43R0X is selected when circuit design requires tighter tolerance (±1% versus ±5%) or when higher power dissipation margin (0.1W versus 0.063W) is beneficial. The upgrade maintains identical package dimensions and operating temperature range, enabling direct footprint compatibility.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging in the 0402 (1005 Metric) form factor with identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm) and maximum seated height of 0.016" (0.40mm).

Q: Do substitute parts meet the same compliance requirements?

A: Yes. All substitute parts are RoHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited) moisture sensitivity. ECCN and HTSUS classifications are identical across all parts.

Q: Can ERJ-2RKF43R0X be used in applications designed for ±5% tolerance?

A: Yes. ERJ-2RKF43R0X with ±1% tolerance is a tighter specification and is compatible with applications designed for ±5% tolerance. The component will perform within the original design margin with improved accuracy.