RC1608F3651CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F3651CS is a 3.65 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 with moisture-resistant construction and RoHS3 compliance. The part is suitable for general-purpose applications requiring standard tolerance resistors in compact surface-mount form factors.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications permit selection from qualified alternative manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

RC1608F3651CS

Samsung Electro-MechanicsIn Stock: 852RC1608F3651CS Datasheet

Current PartRFQ

CR0603-FX-3651ELF

Bourns Inc.In Stock: 97730CR0603-FX-3651ELF Datasheet

DirectRFQ

RC0603FR-073K65L

YAGEOIn Stock: 342767RC0603FR-073K65L Datasheet

DirectRFQ

MCR03ERTF3651

Rohm SemiconductorIn Stock: 1700MCR03ERTF3651 Datasheet

UpgradeRFQ

AC0603FR-073K65L

YAGEOIn Stock: 4880AC0603FR-073K65L Datasheet

SimilarRFQ

CRCW06033K65FKEA

Vishay DaleIn Stock: 71488CRCW06033K65FKEA Datasheet

SimilarRFQ

ERJ-3EKF3651V

Panasonic Electronic ComponentsIn Stock: 105137ERJ-3EKF3651V Datasheet

SimilarRFQ

RMCF0603FG3K65

Stackpole Electronics IncIn Stock: 30942RMCF0603FG3K65 Datasheet

SimilarRFQ

RMCF0603FT3K65

Stackpole Electronics IncIn Stock: 47752RMCF0603FT3K65 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F3651CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 3.65 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.1W / 1/10W (exact match required)
• Package / Case: 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)
• Number of terminations: 2 (exact match required)
• RoHS compliance: ROHS3 (exact match required)

Acceptable Variation Parameters:

• Manufacturer identity (different manufacturers permitted)
• Packaging format (Tape & Reel or Cut Tape acceptable)
• Physical dimensions within 0603 specification tolerance
• Additional certifications (AEC-Q200 automotive qualification is additive, not restrictive)
• Moisture-resistant feature presence (feature may be present or absent)

Substitute parts are categorized as Direct Substitutes (functionally and mechanically identical to primary part) or Similar Parts (identical electrical specifications with additional certifications or minor dimensional variations within package class tolerance).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Functionally Equivalent):

CR0603-FX-3651ELF (Bourns Inc.) and RC0603FR-073K65L (YAGEO) are direct electrical and mechanical equivalents to RC1608F3651CS. Both parts maintain identical resistance, tolerance, power rating, package specification, and operating parameters. Selection between these options is determined by packaging preference (Tape & Reel versus Cut Tape & Digi-Reel) and supplier availability.

Active Alternatives with Automotive Certification:

AC0603FR-073K65L (YAGEO), CRCW06033K65FKEA (Vishay Dale), ERJ-3EKF3651V (Panasonic Electronic Components), RMCF0603FG3K65, and RMCF0603FT3K65 (Stackpole Electronics Inc) are electrically and mechanically equivalent to the primary part with the addition of AEC-Q200 automotive qualification. These parts are suitable for applications where automotive-grade components are specified or preferred, as AEC-Q200 certification represents enhanced reliability screening and qualification testing. All maintain identical core electrical specifications and RoHS3 compliance.

Discontinued Part:

MCR03ERTF3651 (Rohm Semiconductor) is electrically equivalent but carries Discontinued status at DiGi Electronics. This part should be avoided for new designs or long-term production requirements. Existing inventory may be available through alternative distribution channels.

Selection Criteria:

• For general-purpose applications: CR0603-FX-3651ELF or RC0603FR-073K65L
• For automotive or high-reliability applications: AC0603FR-073K65L, CRCW06033K65FKEA, ERJ-3EKF3651V, RMCF0603FG3K65, or RMCF0603FT3K65
• For Tape & Reel packaging preference: CR0603-FX-3651ELF, AC0603FR-073K65L, CRCW06033K65FKEA, ERJ-3EKF3651V, RMCF0603FG3K65, or RMCF0603FT3K65
• For Cut Tape & Digi-Reel packaging: RC0603FR-073K65L

All recommended substitutes maintain MSL 1 (Unlimited) moisture sensitivity level, permitting standard handling and storage procedures without special precautions.

Frequently Asked Questions (FAQ)

Q: Can AC0603FR-073K65L replace RC1608F3651CS in non-automotive applications?

A: Yes. AC0603FR-073K65L is electrically and mechanically identical to RC1608F3651CS. The AEC-Q200 automotive certification is an additional qualification that does not restrict use in general-purpose applications. The part meets all electrical specifications, tolerance, power rating, and environmental requirements of the primary part.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, suitable for automated pick-and-place assembly. Cut Tape & Digi-Reel packaging supplies components on cut tape segments or small reels, suitable for lower-volume assembly or manual placement. Electrical and mechanical specifications are identical; packaging format selection depends on assembly equipment and production volume requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, matching the primary part RC1608F3651CS. All parts are suitable for applications requiring RoHS3 environmental compliance.

Q: Can RMCF0603FG3K65 and RMCF0603FT3K65 be used interchangeably?

A: Yes. Both Stackpole Electronics parts are electrically and mechanically identical with identical resistance, tolerance, power rating, package, and operating specifications. Selection between FG and FT variants is determined by supplier availability and packaging preference, as both are Tape & Reel format.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and does not require special moisture-controlled storage or baking procedures prior to assembly. Standard warehouse storage conditions are acceptable. This applies to all listed parts.

Q: Why is MCR03ERTF3651 listed as discontinued?

A: MCR03ERTF3651 is marked Discontinued at DiGi Electronics, indicating this distributor no longer stocks the part. The part remains electrically equivalent but should not be selected for new designs or applications requiring long-term supply assurance. Alternative active parts should be prioritized.

Q: Are dimensional variations between substitute parts significant?

A: All parts conform to 0603 (1608 Metric) package specification. Minor dimensional variations exist within package tolerance (for example, CRCW06033K65FKEA dimensions 0.061" L x 0.033" W versus standard 0.063" L x 0.031" W). These variations remain within 0603 package class tolerance and do not affect PCB footprint compatibility or assembly procedures.

Q: Can substitute parts be mixed in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications, tolerance, power rating, and environmental requirements. Parts from different manufacturers can be used in the same circuit or production batch without functional impact. Traceability and documentation practices should reflect actual part numbers used.