RCS3216F4122CS Equivalent & Substitute Parts

Part Overview

The RCS3216F4122CS is a 41.2 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is RoHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization is required, or when design flexibility across multiple qualified suppliers is needed. All substitute parts listed maintain electrical and mechanical compatibility with the original specification.

Substiute Parts

RCS3216F4122CS

Samsung Electro-MechanicsIn Stock: 1198RCS3216F4122CS Datasheet

Current PartRFQ

CR1206-FX-4122ELF

Bourns Inc.In Stock: 25811CR1206-FX-4122ELF Datasheet

SimilarRFQ

CRCW120641K2FKEA

Vishay DaleIn Stock: 5241CRCW120641K2FKEA Datasheet

SimilarRFQ

ERJ-8ENF4122V

Panasonic Electronic ComponentsIn Stock: 47674ERJ-8ENF4122V Datasheet

SimilarRFQ

RC1206FR-0741K2L

YAGEOIn Stock: 101645RC1206FR-0741K2L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F4122CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 41.2 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

• Package type: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 compliance (required)
• Moisture Sensitivity Level 1 (required)

All four substitute parts listed meet these criteria. Variations in physical dimensions (length, width, height) and packaging format (Tape & Reel) do not affect functional substitutability when the core electrical and mechanical specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The CR1206-FX-4122ELF (Bourns Inc.), CRCW120641K2FKEA (Vishay Dale), and RC1206FR-0741K2L (YAGEO) are all active products with full manufacturer support. These three parts are functionally equivalent to the RCS3216F4122CS and suitable for new designs and ongoing production.

Secondary Substitute (Legacy Status):

The ERJ-8ENF4122V (Panasonic Electronic Components) is electrically and mechanically equivalent but carries a "Not For New Designs" product status. This part remains available in inventory and is suitable for replacement, repair, or sustaining production of existing designs. It should not be selected for new product development.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard PCB assembly processes and storage requirements. The CRCW120641K2FKEA includes AEC-Q200 automotive qualification, which provides additional reliability assurance for automotive applications if required.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F4122CS with any of these parts without circuit redesign?

A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical resistance values (41.2 kOhms), tolerance (±1%), power rating (0.25W), package type (1206), and operating temperature range (-55°C ~ 155°C). Direct substitution is possible without circuit modification.

Q: What is the difference between the substitute parts?

A: The substitute parts differ in manufacturer, packaging format, and specific product features. CR1206-FX-4122ELF and RC1206FR-0741K2L feature moisture resistance. CRCW120641K2FKEA and ERJ-8ENF4122V include AEC-Q200 automotive qualification. ERJ-8ENF4122V is marked "Not For New Designs." All other differences are minor variations in physical dimensions and height that do not affect electrical performance or PCB compatibility.

Q: Why is the ERJ-8ENF4122V marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and marketing of this product line. While the part remains available and functionally equivalent, it should only be used for sustaining existing designs or repair applications. For new product development, select from the active status alternatives: CR1206-FX-4122ELF, CRCW120641K2FKEA, or RC1206FR-0741K2L.

Q: Are there any differences in moisture sensitivity or RoHS compliance?

A: No. All parts, including the original RCS3216F4122CS, carry MSL Level 1 (Unlimited) moisture sensitivity rating and ROHS3 compliance. They are interchangeable from a compliance and storage perspective.

Q: Which substitute should I choose for automotive applications?

A: If automotive qualification is required, select either CRCW120641K2FKEA (Vishay Dale) or ERJ-8ENF4122V (Panasonic), both of which carry AEC-Q200 certification. For non-automotive applications, any of the four substitutes is acceptable.

Q: Do the physical dimension variations matter for PCB layout?

A: The 1206 package footprint is standardized. Minor variations in component height (ranging from 0.024" to 0.030") do not affect PCB layout or assembly. All parts use the same land pattern and are mechanically compatible with standard 1206 footprints.