RC1005J300CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005J300CS is a 30 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.063W (1/16W) in 0402 (1005 Metric) package format. This component is classified as Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across different manufacturers while meeting the same operational requirements.

Substiute Parts

RC1005J300CS

Samsung Electro-MechanicsIn Stock: 1020RC1005J300CS Datasheet

Current PartRFQ

RC1005F300CS

Samsung Electro-MechanicsIn Stock: 919RC1005F300CS Datasheet

UpgradeRFQ

RC0402JR-0730RL

YAGEOIn Stock: 209811RC0402JR-0730RL Datasheet

DirectRFQ

ERJ-2RKF30R0X

Panasonic Electronic ComponentsIn Stock: 168503ERJ-2RKF30R0X Datasheet

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RC0402FR-0730RL

YAGEOIn Stock: 2499RC0402FR-0730RL Datasheet

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RMCF0402JT30R0

Stackpole Electronics IncIn Stock: 44360RMCF0402JT30R0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Primary Compatibility Requirements:

• Resistance value: 30 Ohms (exact match required)
• Package / Case: 0402 (1005 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• RoHS Status: ROHS3 Compliant (minimum requirement)
• MSL Rating: 1 (Unlimited) (minimum requirement)

Secondary Compatibility Parameters:

• Tolerance: ±5% (main part specification; upgrades to ±1% are acceptable)
• Power Rating: 0.063W minimum (upgrades to 0.1W are acceptable)
• Packaging Format: Tape & Reel or Cut Tape (both acceptable for substitution)

Substitute parts are grouped by tolerance level and power rating enhancements. Upgrades in tolerance (tighter) and power rating (higher) do not compromise circuit functionality and are considered direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications): RC0402JR-0730RL (YAGEO) and RMCF0402JT30R0 (Stackpole Electronics Inc) are direct substitutes with matching resistance, tolerance, power rating, and package specifications. Both maintain Active product status and full RoHS3 compliance with MSL Level 1 rating.

Upgrade Substitutes (Enhanced Tolerance): RC1005F300CS (Samsung Electro-Mechanics) and RC0402FR-0730RL (YAGEO) provide tighter tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical parameters. These are suitable for applications requiring improved accuracy.

Upgrade Substitute (Enhanced Power Rating and Tolerance): ERJ-2RKF30R0X (Panasonic Electronic Components) offers both tighter tolerance (±1%) and higher power rating (0.1W versus 0.063W). This component includes AEC-Q200 automotive qualification, making it suitable for automotive-grade applications while maintaining compatibility with standard industrial requirements.

All substitute parts maintain identical package dimensions, temperature coefficient, operating temperature range, and compliance certifications as the main part.

Frequently Asked Questions (FAQ)

Q: Can RC0402JR-0730RL replace RC1005J300CS in my circuit? A: Yes. RC0402JR-0730RL is a direct substitute with identical resistance (30 Ohms), tolerance (±5%), power rating (0.063W), and 0402 package format. Both components share the same temperature coefficient, operating range, and compliance certifications.

Q: What is the difference between RC1005J300CS and RC1005F300CS? A: Both are Samsung Electro-Mechanics 30 Ohm resistors in 0402 package. RC1005F300CS has tighter tolerance (±1% versus ±5%). The primary difference is packaging format: RC1005J300CS is supplied in Tape & Reel, while RC1005F300CS is supplied in Cut Tape.

Q: Is ERJ-2RKF30R0X compatible with RC1005J300CS? A: Yes. ERJ-2RKF30R0X is compatible with identical resistance, tolerance upgrade (±1%), and package format. The power rating is upgraded to 0.1W (versus 0.063W), which does not compromise circuit functionality. This component includes AEC-Q200 automotive qualification.

Q: Can I use a ±1% tolerance resistor where a ±5% tolerance resistor is specified? A: Yes. Tighter tolerance specifications are acceptable substitutes. A ±1% resistor provides improved accuracy and does not create circuit incompatibility.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) rating, matching the main part specification.

Q: What is the significance of the 0402 package designation? A: 0402 (1005 Metric) is the standardized package size for all listed parts. This ensures mechanical compatibility with PCB footprints and automated assembly equipment. All substitute parts use identical dimensions: 0.039" L x 0.020" W (1.00mm x 0.50mm).

Q: Does packaging format (Tape & Reel versus Cut Tape) affect electrical performance? A: No. Packaging format affects only supply and handling logistics. Electrical specifications and performance are identical regardless of packaging format.