RC3225F3831CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3831CS is a 3.83 kOhms ±1% 1/3W chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 660 pieces available in inventory. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient) and mechanical compatibility (package size, termination count, operating temperature range).

Substiute Parts

RC3225F3831CS

Samsung Electro-MechanicsIn Stock: 738RC3225F3831CS Datasheet

Current PartRFQ

CRCW12103K83FKEA

Vishay DaleIn Stock: 4565CRCW12103K83FKEA Datasheet

SimilarRFQ

ERJ-14NF3831U

Panasonic Electronic ComponentsIn Stock: 21444ERJ-14NF3831U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F3831CS is determined by the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 3.83 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Number of Terminations: 2
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Composition: Thick Film
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power ratings (0.333W or greater)
• Physical Dimensions: Minor variations within supplier specifications are acceptable provided package classification remains 1210 (3225 Metric)
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify a substitute

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

CRCW12103K83FKEA (Vishay Dale) is the primary substitute for new designs. This part maintains all mandatory electrical and mechanical parameters while offering a higher power rating (0.5W vs. 0.333W), providing additional thermal margin. The part is in active production status and carries AEC-Q200 automotive qualification, making it suitable for both commercial and automotive applications. Inventory availability is high at 4501 pieces.

ERJ-14NF3831U (Panasonic Electronic Components) is a secondary substitute that meets all electrical and mechanical requirements. However, this part carries a "Not For New Designs" status, indicating it is in end-of-life phase. While functionally equivalent and currently in stock (21386 pieces), it should be used only for legacy system maintenance or repair applications where design continuity is required. The part includes AEC-Q200 automotive qualification.

For new product designs, CRCW12103K83FKEA is the recommended substitute. For existing systems currently using RC3225F3831CS, either substitute part provides electrical and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can CRCW12103K83FKEA replace RC3225F3831CS in existing designs?

A: Yes. Both parts share identical resistance (3.83 kOhms), tolerance (±1%), package (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The CRCW12103K83FKEA has a higher power rating (0.5W vs. 0.333W), which is acceptable for substitution as it provides equal or greater capability.

Q: What is the difference between the 1/3W and 1/2W power ratings?

A: Power rating indicates the maximum continuous power dissipation the resistor can handle. The 1/2W rating of substitute parts exceeds the 1/3W requirement of the original part, providing additional thermal headroom without affecting electrical performance in the circuit.

Q: Why is ERJ-14NF3831U marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life status and the manufacturer is not recommending it for new product development. It remains available for existing applications and repairs but should not be selected for new designs where CRCW12103K83FKEA is available.

Q: Are the physical dimensions identical across all three parts?

A: All three parts conform to the 1210 (3225 Metric) package classification. Minor dimensional variations exist within supplier specifications (length 3.20mm, width 2.50-2.55mm, height 0.60-0.70mm), but these fall within standard PCB footprint tolerances and do not affect mechanical compatibility.

Q: Do the substitute parts have the same moisture sensitivity rating?

A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements.

Q: Can these parts be used interchangeably in automotive applications?

A: CRCW12103K83FKEA and ERJ-14NF3831U both carry AEC-Q200 automotive qualification. RC3225F3831CS does not list AEC-Q200 certification. For automotive applications requiring AEC-Q200 compliance, use CRCW12103K83FKEA or ERJ-14NF3831U.