RC1608F78R7CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F78R7CS is a 78.7 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with moisture resistant characteristics and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and consumer applications requiring precision resistive elements in compact form factors.

Equivalent and substitute parts are identified when manufacturers discontinue production lines, when supply constraints occur, or when design requirements necessitate alternative sourcing from qualified manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Resistance	78.7	Ohms
Tolerance	±1%	-
Power Rating	0.1	W (1/10W)
Package / Case	0603 (1608 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Terminations	2	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F78R7CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 78.7 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

All identified substitute parts meet these mandatory parameters. Substitute parts are further categorized by product status and additional certifications:

Direct Equivalent: RC0603FR-0778R7L (YAGEO) maintains identical electrical and mechanical specifications with Active product status.

Upgrade Classification: MCR03ERTF78R7 (Rohm Semiconductor) meets all mandatory parameters but carries Discontinued at DiGi Electronics status, indicating limited future availability.

Similar Classification with Enhanced Ratings: CRCW060378R7FKEA (Vishay Dale), ERJ-3EKF78R7V (Panasonic Electronic Components), and RMCF0603FT78R7 (Stackpole Electronics Inc) include Automotive AEC-Q200 certification in addition to base specifications, providing enhanced qualification for automotive applications while maintaining all mandatory parameter equivalence.

Parameter Comparison

Parameter	RC1608F78R7CS (Samsung)	RC0603FR-0778R7L (YAGEO)	MCR03ERTF78R7 (Rohm)	CRCW060378R7FKEA (Vishay)	ERJ-3EKF78R7V (Panasonic)	RMCF0603FT78R7 (Stackpole)
Resistance	78.7 Ω	78.7 Ω	78.7 Ω	78.7 Ω	78.7 Ω	78.7 Ω
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W	0.1W	0.1W
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C
Operating Temperature	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C
Terminations	2	2	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Discontinued at DiGi Electronics	Active	Active	Active
Automotive Certification	-	-	-	AEC-Q200	AEC-Q200	AEC-Q200
Packaging Type	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

For General Industrial Applications: RC0603FR-0778R7L (YAGEO) is the primary direct equivalent, offering identical electrical and mechanical specifications with Active product status and established supply availability (89,602 units in stock). This part is suitable for direct substitution in non-automotive applications.

For Automotive Applications: CRCW060378R7FKEA (Vishay Dale), ERJ-3EKF78R7V (Panasonic Electronic Components), or RMCF0603FT78R7 (Stackpole Electronics Inc) are specified when AEC-Q200 automotive qualification is required. All three maintain full electrical equivalence while providing enhanced reliability certification for automotive-grade designs. ERJ-3EKF78R7V offers the highest inventory availability (46,057 units).

For Supply Chain Continuity: MCR03ERTF78R7 (Rohm Semiconductor) is classified as Discontinued at DiGi Electronics and should not be selected for new designs or long-term production requirements. This part is suitable only for legacy system maintenance where existing stock is available.

Packaging Consideration: MCR03ERTF78R7 is supplied in Cut Tape (CT) & Digi-Reel® format, differing from the standard Tape & Reel (TR) packaging of other substitutes. Verify compatibility with automated assembly equipment before selection.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0778R7L replace RC1608F78R7CS in all applications?

A: Yes. RC0603FR-0778R7L meets all mandatory electrical and mechanical parameters: 78.7 Ohm resistance, ±1% tolerance, 0.1W power rating, 0603 package, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, ROHS3 compliance, and MSL 1 rating. Both parts are Active status with identical specifications.

Q: What is the difference between the main part and automotive-qualified substitutes?

A: The main part (RC1608F78R7CS) and YAGEO equivalent (RC0603FR-0778R7L) do not carry AEC-Q200 automotive certification. CRCW060378R7FKEA, ERJ-3EKF78R7V, and RMCF0603FT78R7 include AEC-Q200 qualification, indicating enhanced testing and reliability standards for automotive applications. All parts maintain identical base electrical specifications.

Q: Why is MCR03ERTF78R7 marked as discontinued?

A: MCR03ERTF78R7 is listed as Discontinued at DiGi Electronics, indicating that this distributor no longer actively stocks or supports this part. While the part meets all technical specifications, limited future availability and potential supply constraints make it unsuitable for new designs or production programs requiring long-term component sourcing.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within tolerance. RC1608F78R7CS, RC0603FR-0778R7L, and ERJ-3EKF78R7V specify 0.063" L x 0.031" W (1.60mm x 0.80mm). CRCW060378R7FKEA and RMCF0603FT78R7 specify 0.061" L x 0.031" W (1.55mm x 0.80mm) and 0.061" L x 0.031" W (1.55mm x 0.80mm) respectively. Height-seated maximum values range from 0.020" to 0.022" (0.50mm to 0.55mm). These variations remain within 0603 package class tolerances and do not affect PCB footprint compatibility.

Q: What packaging formats are available?

A: Most substitutes are supplied in Tape & Reel (TR) format: RC0603FR-0778R7L, CRCW060378R7FKEA, ERJ-3EKF78R7V, and RMCF0603FT78R7. MCR03ERTF78R7 is supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with your assembly equipment specifications before procurement.

Q: Can I use automotive-qualified parts in non-automotive applications?

A: Yes. Automotive-qualified parts (CRCW060378R7FKEA, ERJ-3EKF78R7V, RMCF0603FT78R7) exceed the specifications of general industrial parts and are fully compatible with non-automotive applications. No technical restrictions prevent their use in standard industrial designs.

Q: Which substitute offers the best inventory availability?

A: ERJ-3EKF78R7V (Panasonic Electronic Components) provides the highest inventory level at 46,057 units in stock, followed by RC0603FR-0778R7L (YAGEO) at 89,602 units. Both parts are suitable for immediate procurement and high-volume production requirements.

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