RC3225F161CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F161CS is a 160 Ohms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part is specified for general-purpose applications requiring precision resistive elements with moisture resistance in compact form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and environmental ratings within the 1210 package category.

Substiute Parts

RC3225F161CS

Samsung Electro-MechanicsIn Stock: 1198RC3225F161CS Datasheet

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AC1210FR-07160RL

YAGEOIn Stock: 10762AC1210FR-07160RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC3225F161CS are identified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

• Resistance value: 160 Ohms
• Tolerance: ±1%
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 1210 (3225 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Parameters (Must Match or Exceed):

• RoHS3 compliance
• MSL rating: 1 or better
• Moisture resistance capability

Allowable Variation:

• Power rating: Substitute parts may have equal or higher power dissipation rating (0.333W or greater) without affecting circuit compatibility, as higher power ratings provide additional thermal margin
• Physical dimensions: Minor variations within supplier device package specifications are acceptable provided the 1210 package classification is maintained

The AC1210FR-07160RL from YAGEO meets all critical electrical and mechanical parameters while providing enhanced power rating (0.5W vs. 0.333W) and automotive-grade qualification (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC3225F161CS): Select the RC3225F161CS when the application requires Samsung Electro-Mechanics sourcing, standard industrial-grade thick film resistor specifications, or when existing supply chain agreements mandate this manufacturer. The part is Active status with full RoHS3 compliance and unlimited MSL rating, suitable for standard commercial and industrial applications.

Substitute Selection (AC1210FR-07160RL): The AC1210FR-07160RL from YAGEO is a direct functional substitute with the following advantages: higher power dissipation rating (0.5W vs. 0.333W) provides additional thermal margin in power-limited applications, AEC-Q200 automotive qualification extends applicability to automotive-grade designs, and higher inventory availability (10,683 pcs vs. 1,178 pcs) supports supply chain continuity. This substitute maintains all critical electrical parameters and compliance certifications while offering enhanced specifications.

Selection Criteria:

• Use RC3225F161CS for Samsung-specific sourcing requirements or existing design validation
• Use AC1210FR-07160RL for applications requiring automotive qualification, higher power margin, or improved supply availability
• Both parts are suitable for -55°C ~ 155°C operating range applications with moisture-resistant requirements
• Both parts maintain ±1% tolerance and ±100ppm/°C temperature coefficient specifications

Frequently Asked Questions (FAQ)

Q: Can AC1210FR-07160RL replace RC3225F161CS in existing designs without modification?

A: Yes. The AC1210FR-07160RL is a direct functional substitute. Both parts share identical resistance value (160 Ohms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), package classification (1210), and composition (thick film). The substitute's higher power rating (0.5W vs. 0.333W) does not create compatibility issues and provides additional thermal margin. Physical dimensions are within acceptable tolerance for 1210 package specifications.

Q: What is the significance of the higher power rating in AC1210FR-07160RL?

A: The AC1210FR-07160RL is rated at 0.5W (1/2W) compared to the RC3225F161CS at 0.333W (1/3W). This higher power rating indicates greater thermal dissipation capability without exceeding maximum junction temperature. In circuit applications, the substitute can safely handle equal or greater power dissipation without performance degradation. This does not affect electrical behavior at equivalent power levels and provides design margin for thermal variations.

Q: Are there packaging differences between these parts?

A: Both parts use the 1210 (3225 Metric) surface mount package with 2 terminations. Physical dimensions are within acceptable tolerance: RC3225F161CS measures 3.20mm x 2.55mm with 0.66mm maximum seated height; AC1210FR-07160RL measures 3.10mm x 2.60mm with 0.60mm maximum seated height. These minor variations are within standard 1210 package specifications and do not affect PCB layout or assembly compatibility.

Q: What does AEC-Q200 qualification mean for the YAGEO substitute?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The AC1210FR-07160RL carries this certification, indicating compliance with automotive-grade reliability, temperature cycling, and environmental stress testing requirements. This qualification extends the substitute's applicability to automotive and automotive-grade industrial applications. The RC3225F161CS does not carry this specification but remains suitable for standard commercial and industrial applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RC3225F161CS and AC1210FR-07160RL are ROHS3 compliant, indicating compliance with Restriction of Hazardous Substances Directive requirements. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard storage and handling without special precautions.

Q: Which part should be selected for new designs?

A: For new designs, AC1210FR-07160RL is recommended based on higher inventory availability (10,683 pcs), enhanced power rating providing thermal margin, and AEC-Q200 automotive qualification extending application scope. The part maintains all critical electrical specifications while offering additional design flexibility. RC3225F161CS remains a valid alternative if Samsung Electro-Mechanics sourcing is a design requirement.