RC2012F54R9CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F54R9CS is a 54.9 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) power dissipation in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RC2012F54R9CS

Samsung Electro-MechanicsIn Stock: 1164RC2012F54R9CS Datasheet

Current PartRFQ

RC0805FR-0754R9L

YAGEOIn Stock: 42345RC0805FR-0754R9L Datasheet

DirectRFQ

CRCW080554R9FKEA

Vishay DaleIn Stock: 15573CRCW080554R9FKEA Datasheet

SimilarRFQ

ERJ-6ENF54R9V

Panasonic Electronic ComponentsIn Stock: 45415ERJ-6ENF54R9V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F54R9CS are qualified based on the following criteria:

Electrical Parameters (Critical):

• Resistance value: 54.9 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

• Package type: 0805 (2012 Metric)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Number of terminations: 2

Compliance & Environmental (Required):

• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status
• Thick film composition

All identified substitute parts meet these criteria. Variations in seated height and packaging format (Tape & Reel vs. Cut Tape) do not affect electrical or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

RC0805FR-0754R9L (YAGEO): Direct equivalent with identical electrical and mechanical specifications. ROHS3 compliant, MSL 1 rating, and Active product status. Seated height 0.024" (0.60mm) is within acceptable PCB assembly tolerances. Suitable for general industrial and commercial applications.

CRCW080554R9FKEA (Vishay Dale): Functionally equivalent with AEC-Q200 automotive qualification. ROHS3 compliant with MSL 1 rating. Lowest seated height at 0.020" (0.50mm) provides additional clearance margin in space-constrained layouts. Recommended for automotive and high-reliability applications requiring automotive-grade components.

ERJ-6ENF54R9V (Panasonic): Functionally equivalent with AEC-Q200 automotive qualification. ROHS3 compliant with MSL 1 rating. Seated height 0.028" (0.70mm) is within standard PCB assembly specifications. Recommended for automotive and industrial applications requiring automotive-grade reliability.

All three substitute parts maintain electrical performance, environmental compliance, and mechanical compatibility with the original RC2012F54R9CS component.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0754R9L replace RC2012F54R9CS in all applications?

A: Yes. Both components share identical resistance value (54.9 Ohms), tolerance (±1%), power rating (0.125W), package format (0805), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). Seated height difference (0.024" vs. 0.026") is within standard PCB assembly tolerances and does not affect functionality.

Q: What is the difference between CRCW080554R9FKEA and ERJ-6ENF54R9V?

A: Both components are electrically and mechanically equivalent to RC2012F54R9CS and feature AEC-Q200 automotive qualification. Primary differences are manufacturer (Vishay Dale vs. Panasonic) and seated height (0.020" vs. 0.028"). Selection depends on supply chain availability and specific PCB layout requirements.

Q: Are automotive-rated parts (CRCW080554R9FKEA, ERJ-6ENF54R9V) required for non-automotive applications?

A: No. Automotive-rated parts are not required for general industrial or commercial applications. RC0805FR-0754R9L provides equivalent performance for non-automotive use. Automotive-rated substitutes may be selected based on supply availability or organizational procurement standards.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect component compatibility?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical performance remain identical. RC2012F54R9CS and RC0805FR-0754R9L use Tape & Reel packaging, while CRCW080554R9FKEA uses Cut Tape & Digi-Reel. All are compatible for circuit applications.

Q: What does MSL 1 (Unlimited) rating mean for these components?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All four components (original and substitutes) carry MSL 1 rating, eliminating moisture sensitivity concerns in standard manufacturing environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC2012F54R9CS and all three substitute parts (RC0805FR-0754R9L, CRCW080554R9FKEA, ERJ-6ENF54R9V) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.