Equivalent & Substitute Parts for RC1608F3481CS

Part Overview

The RC1608F3481CS is a 3.48 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with 920 pieces currently in stock. The part features moisture resistance, operates across -55°C to 155°C, and complies with ROHS3 and REACH standards.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating, temperature coefficient), mechanical compatibility (package size, dimensions, termination count), and environmental compliance ratings. Substitutes enable design flexibility, supply chain optimization, and alternative sourcing when the primary part becomes unavailable.

Key Parameters

Parameter	Value
Resistance	3.48 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

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

Electrical Equivalence: Resistance value (3.48 kOhms), tolerance (±1%), power rating (0.1W), composition (thick film), and temperature coefficient (±100ppm/°C) must match exactly.

Mechanical Compatibility: Package designation (0603 / 1608 Metric), physical dimensions (0.063" L × 0.031" W / 1.60mm × 0.80mm), maximum seated height (0.022" / 0.55mm), and termination count (2) must be identical or within acceptable manufacturing tolerances.

Environmental & Compliance Standards: All substitute parts must maintain ROHS3 compliance, REACH unaffected status, MSL Level 1, and identical ECCN/HTSUS classifications.

Substitute parts are categorized as follows:

Direct Substitutes: Parts meeting all electrical, mechanical, and compliance parameters without additional features or certifications.

Upgrade Substitutes: Parts with identical core specifications but discontinued or limited availability status.

Similar Substitutes: Parts meeting all core parameters but including additional certifications (AEC-Q200 automotive qualification) or minor dimensional variations within tolerance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp (°C)	MSL	RoHS	Product Status	Packaging Type
RC1608F3481CS	Samsung Electro-Mechanics	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel
CR0603-FX-3481ELF	Bourns Inc.	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel
RC0603FR-073K48L	YAGEO	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel
MCR03ERTF3481	Rohm Semiconductor	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Discontinued	Cut Tape & Digi-Reel
AC0603FR-073K48L	YAGEO	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel
CRCW06033K48FKEA	Vishay Dale	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel
ERJ-3EKF3481V	Panasonic Electronic Components	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Cut Tape & Digi-Reel
RMCF0603FG3K48	Stackpole Electronics Inc	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Cut Tape
RMCF0603FT3K48	Stackpole Electronics Inc	3.48 kΩ	±1%	0.1	0603	±100	-55 to 155	1	ROHS3	Active	Tape & Reel

Engineering Selection Recommendations

Primary Direct Substitutes (Preferred):

CR0603-FX-3481ELF (Bourns Inc.) and RC0603FR-073K48L (YAGEO) are direct functional equivalents with Active product status, matching all electrical and mechanical specifications. Both are available in Tape & Reel packaging with high inventory levels (57,048 and 414,188 units respectively), ensuring supply continuity.

Secondary Direct Substitutes:

CR0603-FX-3481ELF (Bourns Inc.) provides equivalent performance with 57,048 units in stock. RC0603FR-073K48L (YAGEO) offers the highest inventory availability at 414,188 units, supporting high-volume production requirements.

Automotive-Qualified Alternatives:

AC0603FR-073K48L (YAGEO), CRCW06033K48FKEA (Vishay Dale), ERJ-3EKF3481V (Panasonic), RMCF0603FG3K48 (Stackpole), and RMCF0603FT3K48 (Stackpole) include AEC-Q200 automotive qualification in addition to standard specifications. These parts are suitable for applications requiring automotive-grade reliability and are interchangeable with the base part in non-automotive designs.

Discontinued Part:

MCR03ERTF3481 (Rohm Semiconductor) is discontinued at DiGi Electronics with limited inventory (984 units). This part should not be selected for new designs or long-term production commitments.

Packaging Considerations:

Tape & Reel packaging (TR) is standard for high-volume surface mount assembly. Cut Tape (CT) and Digi-Reel packaging options are available from Panasonic and Stackpole for lower-volume or specialized handling requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F3481CS with any of the listed parts?

A: Yes, all listed parts meet the core electrical and mechanical specifications (3.48 kΩ ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C operating range). Substitution is valid provided your application does not require specific manufacturer certifications or packaging formats not available in the substitute part.

Q: What is the difference between Direct, Upgrade, and Similar substitutes?

A: Direct substitutes (CR0603-FX-3481ELF, RC0603FR-073K48L) match all specifications without additional features. Upgrade substitutes (MCR03ERTF3481) have identical specifications but discontinued status. Similar substitutes (AC0603FR-073K48L, CRCW06033K48FKEA, ERJ-3EKF3481V, RMCF0603FG3K48, RMCF0603FT3K48) include AEC-Q200 automotive certification, making them suitable for automotive and general-purpose applications.

Q: Are there dimensional differences between substitute parts?

A: All parts conform to 0603 (1608 Metric) package specifications. Minor dimensional variations exist within manufacturing tolerance: CRCW06033K48FKEA and RMCF0603FG3K48 have length 0.061" (1.55mm) versus standard 0.063" (1.60mm), and CRCW06033K48FKEA has height 0.020" (0.50mm) versus standard 0.022" (0.55mm). These variations remain within PCB design tolerances and do not affect functional compatibility.

Q: Which substitute offers the best supply availability?

A: RC0603FR-073K48L (YAGEO) provides the highest inventory at 414,188 units. RMCF0603FT3K48 (Stackpole) offers 184,826 units. Both ensure reliable long-term supply for production volumes.

Q: Can I use automotive-qualified parts (AEC-Q200) in non-automotive applications?

A: Yes. Automotive-qualified parts exceed standard reliability requirements and are fully compatible in general-purpose applications. AC0603FR-073K48L, CRCW06033K48FKEA, ERJ-3EKF3481V, RMCF0603FG3K48, and RMCF0603FT3K48 are suitable for any application requiring 3.48 kΩ ±1% 0.1W 0603 resistors.

Q: What packaging options are available?

A: Tape & Reel (TR) is the standard format for automated assembly. Cut Tape (CT) and Digi-Reel packaging are available from Panasonic (ERJ-3EKF3481V) and Stackpole (RMCF0603FG3K48). Select packaging based on assembly equipment compatibility and order volume requirements.

Q: Are all substitute parts ROHS3 and REACH compliant?

A: Yes. All listed parts maintain ROHS3 compliance and REACH unaffected status, matching the primary part's environmental certifications.

Q: Should I avoid the discontinued MCR03ERTF3481?

A: MCR03ERTF3481 is discontinued at DiGi Electronics with only 984 units available. For new designs or ongoing production, select from Active status parts: CR0603-FX-3481ELF, RC0603FR-073K48L, AC0603FR-073K48L, CRCW06033K48FKEA, ERJ-3EKF3481V, RMCF0603FG3K48, or RMCF0603FT3K48.

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