RCS2012F1784CS Equivalent & Substitute Parts

Part Overview

The RCS2012F1784CS is a 1.78 MOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format with 0.125W power rating. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RCS2012F1784CS

Samsung Electro-MechanicsIn Stock: 1141RCS2012F1784CS 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

Substitution eligibility for the RCS2012F1784CS is determined by strict equivalence across the following parameters:

Electrical Equivalence Requirements:

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

Mechanical Equivalence Requirements:

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

Compliance Equivalence Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

The identified substitute parts CRCW08051M78FKEA (Vishay Dale) and ERJ-6ENF1784V (Panasonic Electronic Components) meet all electrical, mechanical, and compliance criteria. Both manufacturers produce thick film 0805 chip resistors with identical resistance, tolerance, power rating, and temperature specifications. Both parts maintain ROHS3 compliance and MSL Level 1 rating, enabling direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

All three components maintain Active product status with full ROHS3 compliance and MSL Level 1 rating, confirming ongoing manufacturing support and environmental regulatory alignment. The RCS2012F1784CS features anti-sulfur and moisture-resistant construction specific to Samsung's RCS series. The CRCW08051M78FKEA and ERJ-6ENF1784V both incorporate Automotive AEC-Q200 qualification, indicating enhanced reliability screening and qualification for automotive applications.

Height variation exists among the three parts: RCS2012F1784CS seated height is 0.026" (0.66mm), CRCW08051M78FKEA is 0.020" (0.50mm), and ERJ-6ENF1784V is 0.028" (0.70mm). These dimensional differences remain within typical PCB assembly tolerances for 0805 package components and do not affect electrical performance or standard reflow soldering processes.

Selection between substitute parts depends on application requirements: CRCW08051M78FKEA offers the lowest profile option, while ERJ-6ENF1784V provides the highest seated height. Both substitute parts are suitable for direct replacement in non-automotive applications. For automotive circuit designs, either CRCW08051M78FKEA or ERJ-6ENF1784V is appropriate due to AEC-Q200 qualification.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051M78FKEA directly replace RCS2012F1784CS in existing designs?

A: Yes. Both components share identical electrical specifications (1.78 MOhms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C), identical 0805 package dimensions (0.079" L x 0.049" W), and equivalent compliance certifications (ROHS3, MSL Level 1). The 0.006" (0.16mm) height difference is within standard PCB assembly tolerances.

Q: What is the difference between the Samsung RCS2012F1784CS and Panasonic ERJ-6ENF1784V?

A: Both components are electrically and mechanically equivalent with identical resistance, tolerance, power rating, and operating temperature range. The primary differences are manufacturer-specific features: Samsung RCS includes anti-sulfur and moisture-resistant construction, while Panasonic ERJ-6EN includes Automotive AEC-Q200 qualification. Seated height differs by 0.002" (0.04mm).

Q: Are the substitute parts suitable for automotive applications?

A: CRCW08051M78FKEA and ERJ-6ENF1784V both carry Automotive AEC-Q200 qualification, making them suitable for automotive circuit designs. The original RCS2012F1784CS does not specify AEC-Q200 qualification.

Q: Does package compatibility affect PCB assembly?

A: No. All three components use the 0805 (2012 Metric) package with identical land pattern dimensions. Standard reflow soldering processes accommodate the minor height variations (0.020" to 0.028" seated height range) without modification.

Q: What compliance certifications apply to all three parts?

A: All three components are ROHS3 Compliant, REACH Unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited). All maintain Active product status with ongoing manufacturing support.