RC1608F9311CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F9311CS is a 9.31 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status and is RoHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). The part is supplied in Tape & Reel packaging with 1,037 pieces currently in stock.

Equivalent and substitute parts are identified when applications require alternative sourcing due to supply constraints, inventory availability, or specific application requirements such as automotive qualification or alternative packaging formats.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	9.31 kOhms	Primary electrical specification
Tolerance	±1%	Precision grade requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical form factor and PCB footprint
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Stability over temperature range
Operating Temperature Range	-55°C to +155°C	Environmental operating limits
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling and storage requirements
RoHS Status	ROHS3 Compliant	Environmental compliance
Number of Terminations	2	Component connectivity

Substitute Part Grouping Explanation

Substitute parts for the RC1608F9311CS are classified into two categories based on substitution relationship type and allowed parameter variance:

Direct Substitutes (Functionally Equivalent)

Direct substitutes maintain identical electrical specifications, package dimensions, and general-purpose application suitability. These parts share the same resistance value (9.31 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to +155°C), and compliance status (RoHS3, MSL 1). Direct substitutes include CR0603-FX-9311ELF (Bourns Inc.) and RC0603FR-079K31L (YAGEO).

Similar Substitutes (Application-Specific Variants)

Similar substitutes maintain all core electrical and thermal specifications but include additional qualifications or certifications. These parts are suitable for applications requiring automotive-grade components with AEC-Q200 qualification. Similar substitutes include AC0603FR-079K31L (YAGEO), CRCW06039K31FKEA (Vishay Dale), ERJ-3EKF9311V (Panasonic Electronic Components), and RMCF0603FT9K31 (Stackpole Electronics Inc.).

Key Parameters Determining Substitutability:

Resistance value: 9.31 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature: -55°C to +155°C (exact match required)
RoHS compliance: ROHS3 (exact match required)
MSL rating: 1 (Unlimited) (exact match required)

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	Composition	MSL	RoHS	AEC-Q200	Inventory (Pcs)
Samsung Electro-Mechanics	RC1608F9311CS	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	No	1,037
Bourns Inc.	CR0603-FX-9311ELF	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	No	26,470
YAGEO	RC0603FR-079K31L	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	No	235,823
YAGEO	AC0603FR-079K31L	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	Yes	38,313
Vishay Dale	CRCW06039K31FKEA	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	Yes	71,353
Panasonic Electronic Components	ERJ-3EKF9311V	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	Yes	58,511
Stackpole Electronics Inc	RMCF0603FT9K31	9.31 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to +155°C	Thick Film	1	ROHS3	Yes	36,206

Engineering Selection Recommendations

For General-Purpose Applications

RC0603FR-079K31L (YAGEO) is the primary substitute for general-purpose applications. This part maintains full electrical and thermal equivalence to the RC1608F9311CS while offering significantly higher inventory availability (235,823 pieces). Both parts are Active status, RoHS3 compliant, and MSL 1 rated. CR0603-FX-9311ELF (Bourns Inc.) serves as a secondary option with 26,470 pieces in stock.

For Automotive Applications

Applications requiring AEC-Q200 automotive qualification must use one of the following substitutes: AC0603FR-079K31L (YAGEO, 38,313 pcs), CRCW06039K31FKEA (Vishay Dale, 71,353 pcs), ERJ-3EKF9311V (Panasonic Electronic Components, 58,511 pcs), or RMCF0603FT9K31 (Stackpole Electronics Inc., 36,206 pcs). All four parts maintain identical electrical specifications and operating temperature range while providing automotive-grade reliability certification.

For Supply Chain Optimization

CRCW06039K31FKEA (Vishay Dale) offers the highest inventory level among AEC-Q200 qualified alternatives at 71,353 pieces. RC0603FR-079K31L (YAGEO) provides the largest overall inventory at 235,823 pieces for non-automotive applications.

Packaging Consideration

The RC1608F9311CS is supplied in Tape & Reel (TR) packaging. CRCW06039K31FKEA is supplied in Cut Tape (CT) & Digi-Reel® format, which may require process adjustment in automated assembly environments. All other substitutes use Tape & Reel packaging consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use an AEC-Q200 qualified part as a substitute for a non-automotive application?

A: Yes. AEC-Q200 qualified parts such as AC0603FR-079K31L, CRCW06039K31FKEA, ERJ-3EKF9311V, and RMCF0603FT9K31 meet or exceed the electrical and thermal specifications of the RC1608F9311CS and are suitable for general-purpose applications. The automotive qualification represents an additional certification level and does not restrict use in non-automotive circuits.

Q: What is the difference between Direct Substitutes and Similar Substitutes?

A: Direct substitutes (CR0603-FX-9311ELF and RC0603FR-079K31L) are general-purpose components without automotive qualification. Similar substitutes include AEC-Q200 automotive qualification in addition to the same electrical specifications. Selection depends on application requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist. The RC1608F9311CS, CR0603-FX-9311ELF, ERJ-3EKF9311V, and RC0603FR-079K31L share identical dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW06039K31FKEA and RMCF0603FT9K31 have slightly different dimensions (0.061" L x 0.033" W and 0.061" L x 0.031" W respectively) with 0.020" and 0.022" maximum seated heights. These variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q: Does packaging format affect component performance?

A: No. Packaging format (Tape & Reel versus Cut Tape & Digi-Reel) affects handling and assembly process but not electrical or thermal performance. CRCW06039K31FKEA uses Cut Tape & Digi-Reel packaging while other substitutes use standard Tape & Reel format. Verify compatibility with your assembly equipment before selection.

Q: What is MSL 1 (Unlimited) and why is it important?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. All parts listed, including the RC1608F9311CS and all substitutes, carry MSL 1 rating, meaning they do not require special moisture control during storage or handling and have unlimited shelf life under normal conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The RC1608F9311CS and all listed substitute parts are RoHS3 compliant, meeting current environmental regulations for hazardous substance restrictions in electrical and electronic equipment.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All substitute parts maintain identical electrical specifications (9.31 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C to +155°C operating range). Mixing manufacturers in the same design is electrically valid. However, for consistency in procurement and quality control, single-source selection is recommended where possible.

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