RC3225F3162CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3162CS is a 31.6 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) package. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and resistance value, allowing for component interchangeability in circuit designs where the original part becomes unavailable or when alternative sourcing is required.

Substiute Parts

RC3225F3162CS

Samsung Electro-MechanicsIn Stock: 1058RC3225F3162CS Datasheet

Current PartRFQ

CRCW121031K6FKEA

Vishay DaleIn Stock: 6415CRCW121031K6FKEA Datasheet

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ERJ-14NF3162U

Panasonic Electronic ComponentsIn Stock: 721ERJ-14NF3162U Datasheet

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RMCF1210FT31K6

Stackpole Electronics IncIn Stock: 3471RMCF1210FT31K6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F3162CS is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 31.6 kOhms
• 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
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Power Rating: Substitute parts rated at 0.5W (1/2W) are acceptable as they exceed the original 0.333W (1/3W) specification, providing equal or greater power dissipation capability within the same package footprint.

Identified Substitute Parts: All three substitute parts meet the mandatory matching parameters with increased power ratings. The CRCW121031K6FKEA and RMCF1210FT31K6 maintain Active product status. The ERJ-14NF3162U carries Not For New Designs status and should be evaluated based on application lifecycle requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

CRCW121031K6FKEA (Vishay Dale) and RMCF1210FT31K6 (Stackpole Electronics Inc) are both classified as Active products with current manufacturing support. Both parts carry AEC-Q200 automotive qualification ratings and maintain identical electrical and thermal specifications to the RC3225F3162CS. The increased power rating of 0.5W (1/2W) provides thermal margin in applications where the original 0.333W specification is utilized. Selection between these two Active alternatives should be based on supply chain availability, packaging format preference (Tape & Reel), and established supplier relationships.

Secondary Substitute (Not For New Designs):

ERJ-14NF3162U (Panasonic Electronic Components) meets all electrical and mechanical compatibility criteria but carries Not For New Designs product status. This part is suitable for replacement in existing production runs, field service applications, or legacy system maintenance where the component is already in use. New circuit designs should prioritize the Active status alternatives.

Compliance Verification:

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and identical moisture sensitivity ratings. No additional compliance evaluation is required for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can CRCW121031K6FKEA replace RC3225F3162CS in existing designs?

A: Yes. The CRCW121031K6FKEA maintains identical resistance (31.6 kOhms), tolerance (±1%), package (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The increased power rating (0.5W vs 0.333W) is compatible with all applications designed for the original part. Both components are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the 0.333W and 0.5W power ratings?

A: The power rating indicates maximum continuous power dissipation capability. Substitute parts rated at 0.5W (1/2W) can safely dissipate higher power levels than the original 0.333W (1/3W) specification. In applications where actual power dissipation does not exceed the original rating, both parts operate identically. The higher rating provides thermal margin and does not affect electrical performance.

Q: Are the physical dimensions identical between all four parts?

A: All parts use the 1210 (3225 Metric) package. The main part RC3225F3162CS specifies 0.126" L x 0.100" W (3.20mm x 2.55mm) with 0.026" maximum seated height. Substitute parts specify 0.126" L x 0.098" W (3.20mm x 2.50mm) with 0.024" to 0.028" maximum seated height. These minor dimensional variations remain within standard PCB footprint tolerances and do not affect board-level compatibility.

Q: Why is ERJ-14NF3162U marked as Not For New Designs?

A: Not For New Designs status indicates the manufacturer has discontinued active development and long-term supply commitment for this part. While the component meets all electrical and mechanical specifications, it should not be selected for new circuit designs. Use this part only for replacement in existing applications or legacy system support where supply continuity is not a primary concern.

Q: Do all substitute parts have AEC-Q200 automotive qualification?

A: The RC3225F3162CS does not specify AEC-Q200 rating. All three substitute parts (CRCW121031K6FKEA, ERJ-14NF3162U, RMCF1210FT31K6) carry AEC-Q200 automotive qualification. This additional certification does not prevent use in non-automotive applications and provides enhanced reliability documentation for automotive designs.

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage, handling, or assembly. Both the main part and all substitutes carry this rating, eliminating moisture-related compatibility concerns.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All parts share identical 1210 package footprints, two-terminal configuration, and solder pad spacing. PCB layout and assembly processes require no modification for substitution. Verify component orientation and polarity markings during assembly, though resistors are non-polarized components.