RCS2012F78R7CS Equivalent & Substitute Parts

Part Overview

The RCS2012F78R7CS is a 78.7 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. 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, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RCS2012F78R7CS

Samsung Electro-MechanicsIn Stock: 1141RCS2012F78R7CS Datasheet

Current PartRFQ

CRCW080578R7FKEA

Vishay DaleIn Stock: 6100CRCW080578R7FKEA Datasheet

SimilarRFQ

ERJ-6ENF78R7V

Panasonic Electronic ComponentsIn Stock: 22704ERJ-6ENF78R7V Datasheet

SimilarRFQ

RC0805FR-0778R7L

YAGEOIn Stock: 121878RC0805FR-0778R7L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F78R7CS is determined by strict equivalence across the following parameters:

• Electrical Specifications: Resistance value (78.7 Ohms), tolerance (±1%), and power rating (0.125W) must be identical
• Package Compatibility: 0805 (2012 Metric) package format with matching termination count (2 terminations)
• Thermal Characteristics: Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) must be equivalent
• Composition: Thick film construction
• Compliance: ROHS3 compliance and MSL 1 rating required
• Physical Dimensions: Length 0.079" (2.00mm), width 0.049" (1.25mm), with seated height variations within acceptable mechanical tolerances

All three substitute parts meet these criteria and are classified as direct equivalents.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are classified as Active product status with ROHS3 compliance and MSL 1 rating, matching the original RCS2012F78R7CS specification. Selection between equivalents is based on the following compliance and certification factors:

CRCW080578R7FKEA (Vishay Dale): Carries AEC-Q200 automotive qualification rating. Selection is appropriate for applications requiring automotive-grade component certification with the lowest seated height profile (0.020").

ERJ-6ENF78R7V (Panasonic): Carries AEC-Q200 automotive qualification rating. Selection is appropriate for automotive applications with highest seated height tolerance (0.028").

RC0805FR-0778R7L (YAGEO): Moisture-resistant construction without automotive qualification. Selection is appropriate for general industrial and consumer applications with mid-range seated height (0.024").

Component selection should be determined by application requirements: automotive applications require AEC-Q200 rated parts (Vishay Dale or Panasonic options), while general applications accept any of the three equivalents based on availability and seated height constraints.

Frequently Asked Questions (FAQ)

Q: Can CRCW080578R7FKEA replace RCS2012F78R7CS in non-automotive applications?

A: Yes. CRCW080578R7FKEA meets all electrical and mechanical specifications of RCS2012F78R7CS. AEC-Q200 certification is a superset qualification and does not restrict use in non-automotive circuits.

Q: What is the significance of seated height differences among the substitute parts?

A: Seated height variations (0.020" to 0.028") are within acceptable mechanical tolerances for 0805 package components. Selection should account for PCB clearance requirements and assembly process specifications. Height differences do not affect electrical performance.

Q: Are all substitute parts suitable for high-temperature applications?

A: Yes. All parts, including RCS2012F78R7CS, operate across the identical temperature range of -55°C to 155°C with ±100ppm/°C temperature coefficient. Thermal performance is equivalent across all options.

Q: Does moisture sensitivity level affect substitution eligibility?

A: No. All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Storage and handling requirements are identical across all options.

Q: Can these parts be used interchangeably in existing designs without PCB modification?

A: Yes, provided PCB layout accommodates the seated height variation. All parts share identical 0805 (2012 Metric) footprint dimensions (0.079" L x 0.049" W). Verify clearance for the specific substitute part's maximum seated height.