RC1608F5621CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F5621CS is a 5.62 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 and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The part operates across a temperature range of -55°C to 155°C with a temperature coefficient of ±100ppm/°C.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design specifications allow for alternative manufacturers meeting identical electrical and mechanical parameters. All substitute parts listed maintain full compatibility with the original RC1608F5621CS specifications.

Key Parameters

Parameter	Value
Resistance	5.62 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	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution compatibility for the RC1608F5621CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 5.62 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (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 range: -55°C to 155°C (exact match required)
Terminations: 2 (exact match required)

Secondary Compatibility Factors:

Moisture Sensitivity Level: MSL 1 (Unlimited) across all substitutes
RoHS compliance status (ROHS3 preferred; non-compliant parts noted)
REACH status (Unaffected preferred; Affected parts noted)

All substitute parts listed below meet the primary substitution criteria. Secondary factors are documented to support engineering selection based on regulatory and compliance requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Op Temp Range	RoHS Status	REACH Status	Packaging Type
RC1608F5621CS	Samsung Electro-Mechanics	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Cut Tape (CT)
CR0603-FX-5621ELF	Bourns Inc.	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Tape & Reel (TR)
RC0603FR-075K62L	YAGEO	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Cut Tape (CT) & Digi-Reel®
AC0603FR-075K62L	YAGEO	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Tape & Reel (TR)
CRCW06035K62FKEA	Vishay Dale	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Tape & Reel (TR)
CRCW06035K62FKTA	Vishay Dale	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	RoHS Non-Compliant	Affected	Tape & Reel (TR)
ERJ-3EKF5621V	Panasonic Electronic Components	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Cut Tape (CT) & Digi-Reel®
RMCF0603FG5K62	Stackpole Electronics Inc	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Tape & Reel (TR)
RMCF0603FT5K62	Stackpole Electronics Inc	5.62 kΩ	±1%	0.1	0603	Thick Film	±100ppm/°C	-55 to 155°C	ROHS3	Unaffected	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

The following parts are direct substitutes with full electrical and mechanical equivalence to RC1608F5621CS:

CR0603-FX-5621ELF (Bourns Inc.) – ROHS3 compliant, REACH unaffected. Available in Tape & Reel packaging. Inventory: 53,204 pcs.
RC0603FR-075K62L (YAGEO) – ROHS3 compliant, REACH unaffected. Available in Cut Tape & Digi-Reel® packaging. Inventory: 1,382,046 pcs.
RMCF0603FT5K62 (Stackpole Electronics Inc) – ROHS3 compliant, REACH unaffected. Available in Tape & Reel packaging. Inventory: 209,437 pcs.

Automotive-Qualified Substitutes (AEC-Q200):

The following parts meet all electrical and mechanical specifications and include automotive AEC-Q200 qualification:

AC0603FR-075K62L (YAGEO) – ROHS3 compliant, REACH unaffected. Tape & Reel packaging. Inventory: 1,723 pcs.
CRCW06035K62FKEA (Vishay Dale) – ROHS3 compliant, REACH unaffected. Tape & Reel packaging. Inventory: 37,729 pcs.
ERJ-3EKF5621V (Panasonic Electronic Components) – ROHS3 compliant, REACH unaffected. Cut Tape & Digi-Reel® packaging. Inventory: 96,606 pcs.
RMCF0603FG5K62 (Stackpole Electronics Inc) – ROHS3 compliant, REACH unaffected. Tape & Reel packaging. Inventory: 10,806 pcs.

Conditional Substitute (Compliance Restrictions):

CRCW06035K62FKTA (Vishay Dale) – RoHS non-compliant and REACH affected. Use only in applications where RoHS3 compliance and REACH compliance are not required. Tape & Reel packaging. Inventory: 5,110 pcs.

Selection Basis:

Selection among equivalent parts should be based on:

Regulatory compliance requirements (RoHS3 and REACH status)
Automotive qualification requirements (AEC-Q200 if needed)
Packaging format availability (Cut Tape vs. Tape & Reel)
Supply chain inventory levels and lead times
Cost considerations within compliant alternatives

All listed substitutes maintain identical electrical performance and thermal characteristics as the RC1608F5621CS.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with RC1608F5621CS?

A: All substitute parts listed in the "Direct Substitutes" and "Automotive-Qualified Substitutes" sections are electrically and mechanically interchangeable with RC1608F5621CS. They share identical resistance values (5.62 kOhms), tolerance (±1%), power rating (0.1W), package (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The CRCW06035K62FKTA is interchangeable electrically but has different compliance status.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape packaging provides individual component strips suitable for manual assembly or small-volume production. Tape & Reel packaging provides components on continuous reels suitable for automated pick-and-place assembly equipment. Both packaging formats contain identical components; the difference is in delivery and handling format only.

Q: Why do some substitutes have AEC-Q200 qualification while others do not?

A: AEC-Q200 is an automotive industry qualification standard. Parts with AEC-Q200 qualification (AC0603FR-075K62L, CRCW06035K62FKEA, ERJ-3EKF5621V, RMCF0603FG5K62, RMCF0603FT5K62) have undergone additional testing and validation for automotive applications. The RC1608F5621CS and CR0603-FX-5621ELF, RC0603FR-075K62L do not carry this designation but remain fully functional for general industrial and consumer applications.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates that the component meets European Union regulations restricting the use of specific hazardous substances including lead, cadmium, mercury, and certain flame retardants. All recommended substitutes except CRCW06035K62FKTA are ROHS3 compliant.

Q: What does REACH Unaffected status mean?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) Unaffected status indicates that the component does not contain substances of very high concern (SVHC) listed under REACH regulations. Most substitutes have REACH Unaffected status; only CRCW06035K62FKTA is REACH Affected.

Q: Are there dimensional differences between substitute parts?

A: All substitute parts use the 0603 (1608 Metric) package with nominal dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm). Minor dimensional variations exist in some parts (CRCW06035K62FKEA and CRCW06035K62FKTA show 0.061" L x 0.033" W and 0.063" L x 0.033" W respectively), but these fall within standard 0603 package tolerances and do not affect PCB footprint compatibility or assembly.

Q: What is Moisture Sensitivity Level (MSL)?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture-controlled storage or handling. All listed parts carry MSL 1 rating, meaning they can be stored and handled under standard conditions without special precautions.

Q: Which substitute should I choose for highest availability?

A: RC0603FR-075K62L (YAGEO) offers the highest inventory level at 1,382,046 pieces, followed by RMCF0603FT5K62 (Stackpole Electronics Inc) at 209,437 pieces. Both are ROHS3 compliant and REACH unaffected.

Q: Can I use CRCW06035K62FKTA in my design?

A: CRCW06035K62FKTA is electrically and mechanically equivalent but is RoHS non-compliant and REACH affected. Use this part only if your application does not require RoHS3 or REACH compliance. If your design, end-market, or customer requirements mandate RoHS3 or REACH compliance, select an alternative from the compliant substitutes list.

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