RC3225F6811CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F6811CS is a 6.81 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with 0.333W power rating. This component is classified as Active product status and is moisture resistant with unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and commercial applications requiring precision resistive elements in compact surface-mount form factors.

Equivalent and substitute parts are necessary when the original RC3225F6811CS becomes unavailable, when higher power dissipation capability is required, or when automotive-grade qualification is mandated by application requirements.

Substiute Parts

RC3225F6811CS

Samsung Electro-MechanicsIn Stock: 1012RC3225F6811CS Datasheet

Current PartRFQ

RC1210FR-076K81L

YAGEOIn Stock: 11098RC1210FR-076K81L Datasheet

UpgradeRFQ

CRCW12106K81FKEA

Vishay DaleIn Stock: 9684CRCW12106K81FKEA Datasheet

SimilarRFQ

ERJ-14NF6811U

Panasonic Electronic ComponentsIn Stock: 15490ERJ-14NF6811U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F6811CS is based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 6.81 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Package / Case: 1210 (3225 Metric) (physical compatibility required)
• Composition: Thick Film (material consistency)
• Temperature Coefficient: ±100ppm/°C (performance consistency)
• Operating Temperature Range: -55°C ~ 155°C (environmental compatibility)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Flexible Parameters:

• Power Rating: 0.333W minimum (higher ratings such as 0.5W are acceptable as upgrades)
• Moisture Sensitivity Level: MSL 1 (no degradation permitted)
• Automotive Qualification: AEC-Q200 certification is optional; presence indicates enhanced reliability for automotive applications

All identified substitute parts maintain identical resistance, tolerance, package, composition, temperature coefficient, and operating temperature specifications. Differences exist only in power rating (upgraded from 1/3W to 1/2W) and automotive qualification status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended for New Designs): RC1210FR-076K81L (YAGEO) is the preferred substitute for the RC3225F6811CS. This part maintains all critical electrical parameters while providing upgraded 0.5W power rating. YAGEO maintains Active product status, ensuring long-term availability and supply chain stability. The part is ROHS3 compliant and MSL 1 rated, matching the original specification exactly.

Secondary Substitute (Automotive Applications): CRCW12106K81FKEA (Vishay Dale) is suitable when AEC-Q200 automotive qualification is required. This part provides identical electrical specifications with enhanced reliability certification for automotive environments. Active product status ensures continued availability.

Alternative Substitute (Legacy Applications Only): ERJ-14NF6811U (Panasonic Electronic Components) provides equivalent electrical performance with AEC-Q200 automotive qualification. However, this part carries "Not For New Designs" product status, indicating end-of-life trajectory. Use only when existing designs require component replacement or when automotive qualification is mandatory and other options are unavailable.

All three substitute parts are electrically and mechanically compatible with the RC3225F6811CS. Selection should prioritize product status (Active preferred) and application requirements (automotive qualification if needed).

Frequently Asked Questions (FAQ)

Q: Can RC1210FR-076K81L replace RC3225F6811CS directly on the PCB? A: Yes. Both parts use identical 1210 (3225 Metric) package dimensions and footprint. Direct PCB substitution is possible without layout modifications. The upgraded 0.5W power rating of the YAGEO part provides additional thermal margin without affecting circuit function.

Q: What is the difference between the 0.333W and 0.5W power ratings? A: Power rating indicates maximum continuous power dissipation capability. The RC3225F6811CS is rated for 0.333W, while substitute parts are rated for 0.5W. Higher power rating means the substitute can safely dissipate more heat. For circuits operating within the original 0.333W specification, both ratings are acceptable. The 0.5W rating provides additional safety margin.

Q: Are all substitute parts ROHS3 compliant? A: Yes. RC1210FR-076K81L, CRCW12106K81FKEA, and ERJ-14NF6811U are all ROHS3 compliant, matching the original RC3225F6811CS specification.

Q: What does "Not For New Designs" mean for ERJ-14NF6811U? A: This product status indicates that Panasonic has discontinued this part for new applications. While existing inventory may be available, the part is in end-of-life phase. For new circuit designs, RC1210FR-076K81L or CRCW12106K81FKEA are preferred to ensure long-term supply availability.

Q: When should I select CRCW12106K81FKEA over RC1210FR-076K81L? A: Select CRCW12106K81FKEA when your application requires AEC-Q200 automotive qualification. This certification indicates the part meets automotive industry reliability and performance standards. For non-automotive applications, RC1210FR-076K81L is the standard choice.

Q: Do all parts have the same temperature coefficient? A: Yes. All parts, including the original RC3225F6811CS and all substitutes, have ±100ppm/°C temperature coefficient and operate across the -55°C ~ 155°C temperature range. Temperature stability is identical across all options.

Q: What is MSL 1 (Unlimited) moisture sensitivity? A: MSL 1 indicates the lowest moisture sensitivity level. Parts with this rating require no special moisture control during storage or handling. All parts in this comparison carry MSL 1 rating, meaning they can be stored and handled under standard conditions without moisture-related degradation.

Q: Are the physical dimensions identical between all parts? A: All parts use the 1210 (3225 Metric) package with nearly identical dimensions. Minor variations exist in height (0.024" to 0.028" maximum seated height), but these are within standard PCB assembly tolerances and do not affect compatibility.

Q: Can I use these parts interchangeably in production? A: Yes, with consideration for product status and application requirements. RC1210FR-076K81L is recommended for standard production. CRCW12106K81FKEA should be used when automotive qualification is specified. ERJ-14NF6811U should be avoided for new production due to "Not For New Designs" status.