RC1608F6492CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F6492CS is a 64.9 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 839 pieces currently in stock. The RC1608F6492CS serves as a precision resistor element in general-purpose electronic applications requiring moisture-resistant thick film construction and standard industrial temperature range operation.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative packaging formats are required, or when design specifications call for automotive-grade qualification (AEC-Q200) for enhanced reliability in demanding environments.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	64.9 kOhms	Primary selection criterion
Tolerance	±1%	Precision requirement
Power Rating	0.1W (1/10W)	Thermal dissipation limit
Package / Case	0603 (1608 Metric)	Physical form factor
Composition	Thick Film	Construction technology
Temperature Coefficient	±100ppm/°C	Stability specification
Operating Temperature Range	-55°C ~ 155°C	Environmental limits
Moisture Resistance	Yes	Environmental protection
Number of Terminations	2	Electrical connection points
RoHS Status	ROHS3 Compliant	Regulatory compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling requirement

Substitute Part Grouping Explanation

Substitution logic for the RC1608F6492CS is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Primary Matching Criteria (Non-Negotiable):

Resistance value: 64.9 kOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2

Secondary Considerations:

Packaging format (Tape & Reel vs. Cut Tape & Digi-Reel)
Product status (Active vs. Discontinued)
Regulatory compliance (RoHS3, REACH)
Automotive qualification (AEC-Q200)
Moisture sensitivity level (MSL 1)

Substitute parts are grouped into two categories:

Direct Substitutes: Parts meeting all primary criteria with identical electrical specifications and standard industrial-grade construction (CR0603-FX-6492ELF, RC0603FR-0764K9L).

Qualified Substitutes: Parts meeting all primary criteria with additional automotive-grade AEC-Q200 qualification (AC0603FR-0764K9L, CRCW060364K9FKEA, CRCW060364K9FKEB, CRCW060364K9FKTA, ERJ-3EKF6492V, RMCF0603FT64K9). These parts are functionally equivalent and provide enhanced reliability certification suitable for automotive and industrial applications.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power Rating	Package	Temp Coeff	Operating Temp	Packaging Format	Product Status	AEC-Q200	RoHS3	Inventory
Samsung Electro-Mechanics	RC1608F6492CS	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Tape & Reel	Active	No	Yes	839
Bourns Inc.	CR0603-FX-6492ELF	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Tape & Reel	Active	No	Yes	34601
YAGEO	RC0603FR-0764K9L	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Cut Tape & Digi-Reel	Active	No	Yes	302984
YAGEO	AC0603FR-0764K9L	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Tape & Reel	Active	Yes	Yes	9843
Vishay Dale	CRCW060364K9FKEA	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Cut Tape & Digi-Reel	Active	Yes	Yes	35848
Vishay Dale	CRCW060364K9FKEB	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Tape & Reel	Discontinued	Yes	Yes	20804
Vishay Dale	CRCW060364K9FKTA	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Cut Tape & Digi-Reel	Active	Yes	No	5868
Panasonic Electronic Components	ERJ-3EKF6492V	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Cut Tape & Digi-Reel	Active	Yes	Yes	85295
Stackpole Electronics Inc	RMCF0603FT64K9	64.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	Tape & Reel	Active	Yes	Yes	85266

Engineering Selection Recommendations

For Standard Industrial Applications (Non-Automotive):

CR0603-FX-6492ELF (Bourns Inc.) and RC0603FR-0764K9L (YAGEO) are direct functional equivalents to the RC1608F6492CS. Both parts maintain identical electrical specifications, RoHS3 compliance, and MSL 1 moisture sensitivity rating. CR0603-FX-6492ELF offers higher inventory availability (34,601 units) with Tape & Reel packaging matching the original part format. RC0603FR-0764K9L provides the largest inventory reserve (302,984 units) and is available in Cut Tape & Digi-Reel format for flexible procurement options.

For Automotive and High-Reliability Applications:

AC0603FR-0764K9L (YAGEO), CRCW060364K9FKEA (Vishay Dale), ERJ-3EKF6492V (Panasonic Electronic Components), and RMCF0603FT64K9 (Stackpole Electronics Inc) are qualified substitutes with AEC-Q200 automotive certification. These parts satisfy all primary electrical and mechanical parameters while providing enhanced reliability qualification. ERJ-3EKF6492V and RMCF0603FT64K9 offer the highest inventory levels (85,295 and 85,266 units respectively) among automotive-qualified options.

Packaging Format Considerations:

Tape & Reel format parts (RC1608F6492CS, CR0603-FX-6492ELF, AC0603FR-0764K9L, CRCW060364K9FKEB, RMCF0603FT64K9) are suitable for high-volume automated assembly. Cut Tape & Digi-Reel format parts (RC0603FR-0764K9L, CRCW060364K9FKEA, CRCW060364K9FKTA, ERJ-3EKF6492V) provide flexibility for mixed-volume production and prototyping environments.

Regulatory Compliance:

All recommended substitutes maintain ROHS3 compliance and MSL 1 moisture sensitivity rating. CRCW060364K9FKTA is RoHS non-compliant and REACH-affected; this part is suitable only for applications where RoHS exemptions apply.

Product Status Consideration:

CRCW060364K9FKEB is marked as Discontinued at DiGi Electronics; while inventory remains available (20,804 units), this part should be considered only for short-term requirements or as a secondary option when primary substitutes are unavailable.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F6492CS with CR0603-FX-6492ELF in my design?

A: Yes. CR0603-FX-6492ELF is a direct substitute meeting all electrical specifications (64.9 kOhms ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C operating range) and regulatory requirements (RoHS3 compliant, MSL 1). Both parts use identical thick film construction and moisture-resistant technology. Tape & Reel packaging format is identical.

Q: What is the difference between standard and AEC-Q200 qualified parts?

A: AEC-Q200 qualification indicates the part has undergone automotive-grade reliability testing and is approved for use in automotive applications. Parts such as AC0603FR-0764K9L, CRCW060364K9FKEA, ERJ-3EKF6492V, and RMCF0603FT64K9 carry this certification. For non-automotive applications, standard industrial-grade parts (CR0603-FX-6492ELF, RC0603FR-0764K9L) are functionally equivalent and fully suitable.

Q: Does packaging format (Tape & Reel vs. Cut Tape & Digi-Reel) affect electrical performance?

A: No. Packaging format affects only procurement, handling, and assembly logistics. Electrical specifications, performance characteristics, and reliability are identical regardless of packaging format. Selection should be based on production volume, assembly equipment compatibility, and inventory management requirements.

Q: Why do some substitute parts have different physical dimensions listed?

A: Minor dimensional variations (e.g., 0.063" L x 0.031" W vs. 0.061" L x 0.031" W) reflect manufacturing tolerances within the 0603 (1608 Metric) package specification. These variations do not affect PCB footprint compatibility or electrical performance. All listed parts are mechanically interchangeable on standard 0603 land patterns.

Q: Is CRCW060364K9FKTA suitable for my application if RoHS3 compliance is required?

A: No. CRCW060364K9FKTA is marked as RoHS non-compliant and REACH-affected. This part should be used only in applications where RoHS exemptions are documented and approved. For RoHS3-compliant designs, select from CR0603-FX-6492ELF, RC0603FR-0764K9L, AC0603FR-0764K9L, CRCW060364K9FKEA, CRCW060364K9FKEB, ERJ-3EKF6492V, or RMCF0603FT64K9.

Q: Can I use CRCW060364K9FKEB if it is discontinued?

A: CRCW060364K9FKEB remains available in inventory (20,804 units) despite discontinuation status at DiGi Electronics. This part is electrically and mechanically equivalent to RC1608F6492CS and suitable for immediate use. However, for long-term production programs, select from active-status alternatives such as CRCW060364K9FKEA, ERJ-3EKF6492V, or RMCF0603FT64K9 to ensure sustained supply availability.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-0764K9L (YAGEO) provides the largest inventory reserve with 302,984 units in stock. For automotive-qualified alternatives, ERJ-3EKF6492V (Panasonic Electronic Components) and RMCF0603FT64K9 (Stackpole Electronics Inc) each maintain inventory levels exceeding 85,000 units.

Q: Are all substitute parts suitable for the full -55°C to 155°C operating temperature range?

A: Yes. All listed substitute parts are specified for -55°C to 155°C operating temperature range with ±100ppm/°C temperature coefficient, matching the RC1608F6492CS specification. Temperature performance is identical across all substitutes.

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