RCS3216F123CS Equivalent & Substitute Parts

Part Overview

The RCS3216F123CS is a 12 kOhms ±1% 0.25W (1/4W) thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component features anti-sulfur and moisture-resistant construction with a temperature coefficient of ±100ppm/°C and operating range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level) and is currently in active production status with 833 pieces in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design requirements necessitate components with enhanced features such as automotive qualification or higher power ratings within the same electrical specifications.

Substiute Parts

RCS3216F123CS

Samsung Electro-MechanicsIn Stock: 866RCS3216F123CS Datasheet

Current PartRFQ

AC1206FR-0712KL

YAGEOIn Stock: 17981AC1206FR-0712KL Datasheet

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CR1206-FX-1202ELF

Bourns Inc.In Stock: 64184CR1206-FX-1202ELF Datasheet

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CRCW120612K0FKEA

Vishay DaleIn Stock: 500410CRCW120612K0FKEA Datasheet

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CRCW120612K0FKEAHP

Vishay DaleIn Stock: 46615CRCW120612K0FKEAHP Datasheet

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ERJ-8ENF1202V

Panasonic Electronic ComponentsIn Stock: 8041ERJ-8ENF1202V Datasheet

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RC1206FR-0712KL

YAGEOIn Stock: 78518RC1206FR-0712KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F123CS is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria (Must Match Exactly):

• Resistance value: 12 kOhms
• Tolerance: ±1%
• Package / Case: 1206 (3216 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)

Secondary Consideration (Allowable Variation):

• Power Rating: 0.25W (1/4W) is the baseline; higher power ratings (0.75W) are acceptable as they provide enhanced capability within the same package footprint
• Dimensional tolerances: Minor variations in length, width, and height within standard manufacturing tolerances are acceptable provided the package designation remains 1206 (3216 Metric)
• Features: Additional features such as automotive AEC-Q200 qualification or pulse withstanding capability do not disqualify a part from substitution

Substitute parts are grouped into two categories: Direct Equivalents (matching all parameters including power rating) and Enhanced Equivalents (matching all parameters with higher power rating or additional certifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Recommended for New Designs):

The following parts are direct electrical and mechanical equivalents of the RCS3216F123CS and are suitable for immediate substitution in active production designs:

• AC1206FR-0712KL (YAGEO): Active product status with automotive AEC-Q200 qualification. Inventory availability: 17,942 pieces.
• CR1206-FX-1202ELF (Bourns Inc.): Active product status with moisture-resistant construction. Inventory availability: 64,075 pieces.
• CRCW120612K0FKEA (Vishay Dale): Active product status with automotive AEC-Q200 qualification. Highest inventory availability: 500,400 pieces.
• RC1206FR-0712KL (YAGEO): Active product status with moisture-resistant construction. Inventory availability: 78,451 pieces.

Enhanced Equivalent (Higher Power Rating):

• CRCW120612K0FKEAHP (Vishay Dale): Active product status with 0.75W power rating (versus 0.25W baseline), automotive AEC-Q200 qualification, and pulse withstanding capability. This part is suitable for applications requiring higher transient power dissipation while maintaining identical resistance, tolerance, and package specifications. Inventory availability: 46,554 pieces.

Not Recommended for New Designs:

• ERJ-8ENF1202V (Panasonic Electronic Components): Product status is "Not For New Designs." This part is electrically equivalent but should not be selected for new design implementations. Existing designs currently using this part may continue to source it while inventory is available (8,020 pieces).

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F123CS with any of the listed equivalent parts without circuit redesign?

A: Yes. All direct equivalent parts (AC1206FR-0712KL, CR1206-FX-1202ELF, CRCW120612K0FKEA, and RC1206FR-0712KL) are electrically and mechanically interchangeable with the RCS3216F123CS. They share identical resistance, tolerance, power rating, package, temperature coefficient, and operating temperature range. No circuit redesign is required.

Q: What is the difference between the CRCW120612K0FKEAHP and the other substitutes?

A: The CRCW120612K0FKEAHP has a higher power rating of 0.75W (3/4W) compared to the 0.25W (1/4W) rating of the RCS3216F123CS and other direct equivalents. All other electrical parameters remain identical. The higher power rating provides additional thermal margin and pulse withstanding capability. This part is suitable for applications where the baseline 0.25W rating may be marginal or where transient power spikes occur.

Q: Are there any dimensional differences between the substitute parts and the main part?

A: Minor dimensional variations exist within standard manufacturing tolerances. The RCS3216F123CS measures 0.126" L x 0.063" W (3.20mm x 1.60mm) with a maximum seated height of 0.026" (0.66mm). Some substitutes have slightly different dimensions: AC1206FR-0712KL and CRCW120612K0FKEAHP measure 0.122" L x 0.063" W (3.10mm x 1.60mm), while CR1206-FX-1202ELF measures 0.126" L x 0.063" W (3.20mm x 1.60mm). These variations are within the 1206 (3216 Metric) package specification and do not affect PCB layout or assembly compatibility.

Q: Why is the ERJ-8ENF1202V marked as "Not For New Designs"?

A: The ERJ-8ENF1202V is electrically equivalent to the RCS3216F123CS but carries a "Not For New Designs" product status from Panasonic Electronic Components. This designation indicates that the manufacturer is phasing out this product line. While existing inventory (8,020 pieces) remains available for current production support, new design implementations should select from the active product alternatives listed above.

Q: Do all substitute parts have the same RoHS and REACH compliance status?

A: Yes. All listed substitute parts, including the main part RCS3216F123CS, are ROHS3 compliant and REACH unaffected. All parts carry the same environmental compliance certifications and are suitable for applications with equivalent regulatory requirements.

Q: Which substitute part has the highest inventory availability?

A: The CRCW120612K0FKEA from Vishay Dale has the highest inventory availability with 500,400 pieces in stock. This part is a direct equivalent with automotive AEC-Q200 qualification and is recommended for high-volume production requirements.

Q: Can I use the CRCW120612K0FKEAHP in place of the RCS3216F123CS in all applications?

A: The CRCW120612K0FKEAHP is electrically compatible and can be used as a direct substitute in all applications where the RCS3216F123CS is specified. The higher 0.75W power rating provides additional capability and does not create any compatibility issues. However, if the application is power-constrained or thermally sensitive, the higher power rating may result in different thermal behavior. For most general-purpose applications, the higher power rating presents no disadvantage.