RC2012F1784CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F1784CS is a 1.78 MOhms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package. This thick film resistor is designed for general-purpose applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified when applications require alternative sourcing, inventory availability, or specific automotive qualification requirements.

Substiute Parts

RC2012F1784CS

Samsung Electro-MechanicsIn Stock: 1053RC2012F1784CS Datasheet

Current PartRFQ

CRCW08051M78FKEA

Vishay DaleIn Stock: 26781CRCW08051M78FKEA Datasheet

SimilarRFQ

ERJ-6ENF1784V

Panasonic Electronic ComponentsIn Stock: 51222ERJ-6ENF1784V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F1784CS are qualified based on the following critical parameters that determine functional interchangeability:

Electrical Parameters:

• Resistance value: 1.78 MOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)

Mechanical Parameters:

• Package type: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 compliance (required for substitution)
• Moisture Sensitivity Level 1 (required for substitution)
• REACH Unaffected status (required for substitution)

All identified substitute parts meet these criteria. Additional features such as automotive AEC-Q200 qualification represent enhanced specifications beyond the base requirements and do not prevent substitution in non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RC2012F1784CS, CRCW08051M78FKEA, and ERJ-6ENF1784V—are functionally equivalent for applications requiring a 1.78 MOhms ±1% 0.125W 0805 chip resistor. Selection between these parts is determined by availability, supply chain requirements, and application-specific certifications.

RC2012F1784CS (Samsung Electro-Mechanics): Select this part for general-purpose applications where moisture-resistant thick film construction is the primary requirement. Current inventory: 944 pieces.

CRCW08051M78FKEA (Vishay Dale): Select this part for applications requiring automotive AEC-Q200 qualification or when Vishay Dale supply chain integration is preferred. This part features a lower seated height of 0.020" (0.50mm), which may be advantageous in space-constrained designs. Current inventory: 26,724 pieces.

ERJ-6ENF1784V (Panasonic Electronic Components): Select this part for applications requiring automotive AEC-Q200 qualification or when Panasonic supply chain integration is preferred. Current inventory: 51,157 pieces.

All parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH Unaffected status. Seated height variations (0.020" to 0.028") are within typical PCB assembly tolerances and do not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051M78FKEA or ERJ-6ENF1784V be used as direct replacements for RC2012F1784CS?

A: Yes. Both parts are direct functional equivalents. All three parts share identical electrical specifications (1.78 MOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C), mechanical package (0805 / 2012 Metric), and compliance certifications (ROHS3, MSL 1, REACH Unaffected). Substitution is valid for any application using the RC2012F1784CS.

Q: What is the difference between the RC2012F1784CS and the automotive-qualified alternatives?

A: The RC2012F1784CS is specified as moisture-resistant thick film. The CRCW08051M78FKEA and ERJ-6ENF1784V carry automotive AEC-Q200 qualification, indicating additional testing and reliability requirements for automotive applications. For non-automotive applications, this qualification is not required. All other electrical and mechanical parameters are identical.

Q: Are there any height or dimensional differences that affect PCB assembly?

A: Seated height varies slightly: RC2012F1784CS is 0.026" (0.66mm), CRCW08051M78FKEA is 0.020" (0.50mm), and ERJ-6ENF1784V is 0.028" (0.70mm). These variations are within standard PCB assembly tolerances and do not affect electrical performance or typical board-level integration. Verify with your assembly process if height-critical applications are involved.

Q: Which part should I select for new designs?

A: Selection depends on supply chain strategy and application requirements. For general-purpose applications, any of the three parts is suitable. For automotive applications, CRCW08051M78FKEA or ERJ-6ENF1784V are preferred due to AEC-Q200 qualification. Verify current inventory availability and lead times with your supplier.

Q: Are all parts available in Tape & Reel packaging?

A: Yes. All three parts—RC2012F1784CS, CRCW08051M78FKEA, and ERJ-6ENF1784V—are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.

Q: Do these parts have different failure rates?

A: Failure rate data is not provided in the specifications for any of the three parts. Consult manufacturer reliability data sheets or your supplier for detailed failure rate information if required for mission-critical applications.