RC2012F78R7CS Equivalent & Substitute Parts

Part Overview

The RC2012F78R7CS is a 78.7 Ohm ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture-resistant characteristics and unlimited moisture sensitivity level (MSL 1). Substitute parts are necessary to address supply chain continuity, inventory availability, or application-specific requirements such as automotive qualification or alternative sourcing strategies.

Key Parameters

Parameter	Value
Resistance	78.7 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC2012F78R7CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 78.7 Ohms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these mandatory parameters. Substitute parts are further categorized by additional features: moisture-resistant construction (baseline), automotive AEC-Q200 qualification (enhanced reliability for automotive applications), or standard thick film construction without additional certifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Operating Temp	Features	Height Max (mm)	RoHS	MSL	Product Status
RC2012F78R7CS	Samsung Electro-Mechanics	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	0.65	ROHS3	1	Active
ERJ-6ENF78R7V	Panasonic Electronic Components	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	0.70	ROHS3	1	Active
RC0805FR-0778R7L	YAGEO	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	0.60	ROHS3	1	Active
RMCF0805FT78R7	Stackpole Electronics Inc	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	0.65	ROHS3	1	Active
CRCW080578R7FKEA	Vishay Dale	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	0.50	ROHS3	1	Active
MCR10ERTF78R7	Rohm Semiconductor	78.7 Ω	±1%	0.125	0805	Thick Film	±100ppm/°C	-55°C ~ 155°C	Standard	0.65	ROHS3	1	Discontinued

Engineering Selection Recommendations

Direct Substitutes (Active Status, Equivalent Features):

ERJ-6ENF78R7V (Panasonic) and RMCF0805FT78R7 (Stackpole) are direct substitutes with automotive AEC-Q200 qualification. These components are suitable for applications requiring enhanced reliability documentation and automotive supply chain compliance. Both maintain active product status.

RC0805FR-0778R7L (YAGEO) is a direct substitute with moisture-resistant construction matching the original specification. This component offers the lowest seated height (0.60mm) among all options and maintains active product status with high inventory availability (121,823 pcs).

CRCW080578R7FKEA (Vishay Dale) is a direct substitute with automotive AEC-Q200 qualification and the lowest seated height (0.50mm). This component is suitable for space-constrained applications requiring automotive qualification.

Limited Availability:

MCR10ERTF78R7 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs or long-term supply chain planning, despite meeting all electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0778R7L replace RC2012F78R7CS in any application?

A: Yes. RC0805FR-0778R7L meets all mandatory electrical parameters (78.7 Ω, ±1%, 0.125W, -55°C ~ 155°C) and mechanical specifications (0805 package, 2 terminations). The component is moisture-resistant and ROHS3 compliant. The seated height difference (0.60mm vs 0.65mm) is within typical PCB design tolerances.

Q: What is the difference between moisture-resistant and automotive AEC-Q200 variants?

A: Moisture-resistant variants (RC2012F78R7CS, RC0805FR-0778R7L) are designed for general industrial applications with unlimited moisture sensitivity level. Automotive AEC-Q200 variants (ERJ-6ENF78R7V, RMCF0805FT78R7, CRCW080578R7FKEA) include additional qualification testing and documentation required for automotive supply chains. Both meet identical electrical specifications and operating temperature ranges.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging in 0805 (2012 Metric) case format, ensuring compatibility with standard SMD assembly processes.

Q: Why is MCR10ERTF78R7 listed if it is discontinued?

A: MCR10ERTF78R7 is included for reference purposes only. This component meets all electrical and mechanical specifications but is discontinued at DiGi Electronics. It should not be selected for new designs or applications requiring long-term supply chain continuity.

Q: Which substitute offers the best height clearance for high-density PCB layouts?

A: CRCW080578R7FKEA (Vishay Dale) has the lowest maximum seated height at 0.50mm, compared to 0.65mm for the original RC2012F78R7CS. This component is suitable for applications with strict height constraints.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts, including the main component and all substitutes, are ROHS3 compliant and REACH unaffected.

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