RC3225F61R9CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F61R9CS is a 61.9 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) package. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or alternative manufacturer certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC3225F61R9CS

Samsung Electro-MechanicsIn Stock: 1176RC3225F61R9CS Datasheet

Current PartRFQ

CRCW121061R9FKEA

Vishay DaleIn Stock: 4690CRCW121061R9FKEA Datasheet

SimilarRFQ

ERJ-14NF61R9U

Panasonic Electronic ComponentsIn Stock: 10028ERJ-14NF61R9U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F61R9CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 61.9 Ohms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2
• RoHS3 Compliance
• MSL 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: Substitutes may have equal or higher power ratings (0.333W or greater)
• Features: Substitutes may include additional certifications (e.g., Automotive AEC-Q200)
• Product Status: Substitutes may be Active or Not For New Designs

The identified substitute parts CRCW121061R9FKEA and ERJ-14NF61R9U meet all mandatory parameters while offering higher power ratings (0.5W / 1/2W) and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

CRCW121061R9FKEA (Vishay Dale) is the primary substitute for RC3225F61R9CS. This component maintains Active product status, matches all mandatory electrical and mechanical parameters, and provides a higher power rating of 0.5W. The Automotive AEC-Q200 certification qualifies this part for automotive applications. Dimensional compatibility is confirmed with width and height variations within acceptable tolerances for 1210 package footprints.

ERJ-14NF61R9U (Panasonic Electronic Components) is a secondary substitute. While electrically and mechanically equivalent, this part carries a "Not For New Designs" product status designation. Selection of this component is appropriate only for legacy system maintenance, repair, or where existing design validation has been completed with this specific part number. The height dimension (0.028" / 0.70mm) represents the maximum variation among the three options but remains within 1210 package specifications.

Both substitute parts are suitable for direct replacement in applications where the original RC3225F61R9CS encounters supply limitations, provided that the higher power rating does not create thermal or electrical design conflicts.

Frequently Asked Questions (FAQ)

Q: Can CRCW121061R9FKEA replace RC3225F61R9CS in all applications?

A: CRCW121061R9FKEA is electrically and mechanically compatible with RC3225F61R9CS. The higher power rating (0.5W vs. 0.333W) presents no compatibility issue. Dimensional differences are minimal and fall within standard 1210 package tolerances. Substitution is valid for all applications where the original part was specified.

Q: What is the significance of the "Not For New Designs" status on ERJ-14NF61R9U?

A: "Not For New Designs" indicates that Panasonic has discontinued active development and marketing of this component. While the part remains functionally equivalent and available in inventory, it is intended for legacy applications only. New product designs should prioritize CRCW121061R9FKEA or the original RC3225F61R9CS.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: All three parts conform to the 1210 (3225 Metric) package standard. Length is identical at 0.126" (3.20mm). Width variations range from 0.098" to 0.100" (2.50mm to 2.55mm), and height from 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard PCB footprint tolerances and do not require layout modifications.

Q: Does the Automotive AEC-Q200 certification on substitute parts affect general industrial applications?

A: Automotive AEC-Q200 certification indicates enhanced reliability testing and qualification. This certification does not restrict use in non-automotive applications. Components with AEC-Q200 qualification are suitable for any application requiring the specified electrical and mechanical parameters.

Q: What is the impact of the higher power rating on thermal performance?

A: The substitute parts (CRCW121061R9FKEA and ERJ-14NF61R9U) are rated for 0.5W compared to the original 0.333W. A higher power rating indicates greater thermal capacity and lower operating temperature rise under identical current conditions. This represents an improvement in thermal performance and does not create compatibility issues.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC3225F61R9CS, CRCW121061R9FKEA, and ERJ-14NF61R9U are all RoHS3 compliant and REACH unaffected, confirming compliance with current environmental and hazardous substance regulations.