RC1608F335CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F335CS is a 3.3 MOhms ±1% thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.1W power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced performance characteristics.

Substiute Parts

RC1608F335CS

Samsung Electro-MechanicsIn Stock: 982RC1608F335CS Datasheet

Current PartRFQ

RC0603FR-073M3L

YAGEOIn Stock: 2072RC0603FR-073M3L Datasheet

DirectRFQ

KTR03EZPF3304

Rohm SemiconductorIn Stock: 50878KTR03EZPF3304 Datasheet

UpgradeRFQ

RMCF0603FT3M30

Stackpole Electronics IncIn Stock: 136850RMCF0603FT3M30 Datasheet

UpgradeRFQ

AC0603FR-073M3L

YAGEOIn Stock: 80656AC0603FR-073M3L Datasheet

SimilarRFQ

CRCW06033M30FKEA

Vishay DaleIn Stock: 60732CRCW06033M30FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Mandatory Matching Criteria:

• Resistance value: 3.3 MOhms
• Tolerance: ±1%
• Power rating: 0.1W
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C
• Terminations: 2
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Allowable Variation Parameters:

• Temperature coefficient: ±100ppm/°C to ±200ppm/°C (within industrial tolerance)
• Physical dimensions: Minor variations within 0603 package specification (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm)
• Features: Additional qualifications (Automotive AEC-Q200, High Voltage) do not disqualify substitution

Substitution Categories:

Direct Equivalent: RC0603FR-073M3L (YAGEO) - Identical electrical and mechanical specifications with matching temperature coefficient.

Upgrade Substitutes: KTR03EZPF3304 (Rohm Semiconductor) and RMCF0603FT3M30 (Stackpole Electronics Inc) - Meet all mandatory criteria with additional automotive AEC-Q200 qualification, suitable for applications requiring enhanced reliability standards.

Similar Substitutes: AC0603FR-073M3L (YAGEO) and CRCW06033M30FKEA (Vishay Dale) - Meet all mandatory criteria with automotive AEC-Q200 qualification and minor dimensional variations within package tolerance.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: RC0603FR-073M3L (YAGEO) serves as the direct equivalent with identical electrical characteristics and temperature coefficient. This part maintains full compatibility with the original RC1608F335CS specification and is suitable for non-automotive applications requiring standard industrial reliability.

For Automotive and High-Reliability Applications: KTR03EZPF3304 (Rohm Semiconductor), RMCF0603FT3M30 (Stackpole Electronics Inc), AC0603FR-073M3L (YAGEO), and CRCW06033M30FKEA (Vishay Dale) all carry AEC-Q200 automotive qualification. These parts meet enhanced reliability standards and are appropriate for automotive, medical, and mission-critical applications. Selection among these four should be based on supply availability and procurement lead times.

Temperature Coefficient Consideration: RMCF0603FT3M30 exhibits ±200ppm/°C temperature coefficient compared to ±100ppm/°C in the main part and other substitutes. This wider coefficient is within industrial thick film resistor tolerance but should be evaluated for applications with stringent temperature stability requirements across the full -55°C to 155°C operating range.

Dimensional Compatibility: All substitute parts maintain 0603 package form factor with minor dimensional variations. CRCW06033M30FKEA and RMCF0603FT3M30 show slight length reduction (1.55mm vs. 1.60mm) and CRCW06033M30FKEA shows width increase (0.85mm vs. 0.80mm), both within 0603 specification tolerance. Height variations (0.50mm to 0.55mm) are similarly within specification. These variations do not affect PCB layout or assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-073M3L replace RC1608F335CS in any application?

A: Yes. RC0603FR-073M3L is a direct equivalent with identical resistance, tolerance, power rating, package, composition, temperature coefficient, and operating range. All electrical and mechanical parameters match the original specification.

Q: What is the difference between direct equivalent and upgrade substitutes?

A: Direct equivalents (RC0603FR-073M3L) match all specifications of the original part. Upgrade substitutes (KTR03EZPF3304, RMCF0603FT3M30, AC0603FR-073M3L, CRCW06033M30FKEA) meet all mandatory specifications and add automotive AEC-Q200 qualification, making them suitable for applications requiring enhanced reliability standards without compromising compatibility.

Q: Is RMCF0603FT3M30 suitable for precision applications?

A: RMCF0603FT3M30 maintains ±1% tolerance matching the original part. However, its ±200ppm/°C temperature coefficient is wider than the ±100ppm/°C of RC1608F335CS and most substitutes. For applications requiring tight temperature stability across the full -55°C to 155°C range, parts with ±100ppm/°C coefficient (RC0603FR-073M3L, KTR03EZPF3304, AC0603FR-073M3L, CRCW06033M30FKEA) are preferred.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging, matching the original RC1608F335CS packaging format for automated assembly compatibility.

Q: Do dimensional variations affect PCB assembly?

A: No. All substitute parts conform to 0603 (1608 Metric) package specification. Dimensional variations (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm) fall within standard 0603 tolerance and do not affect PCB footprint, pick-and-place equipment compatibility, or reflow soldering processes.

Q: Which substitute part has the highest inventory availability?

A: RMCF0603FT3M30 (Stackpole Electronics Inc) shows 136,742 pieces in stock, followed by AC0603FR-073M3L (YAGEO) with 80,615 pieces and CRCW06033M30FKEA (Vishay Dale) with 60,623 pieces. RC0603FR-073M3L (YAGEO) has 2,009 pieces available.

Q: Can automotive-qualified parts be used in non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts exceed standard industrial reliability requirements and are fully compatible with non-automotive applications. Their use in standard industrial circuits provides enhanced reliability margin without any compatibility issues.

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

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations. These parts do not require special dry-pack storage or baking procedures before assembly, simplifying procurement, storage, and manufacturing logistics compared to higher MSL-rated components.