RCS3216F3742CS Equivalent & Substitute Parts

Part Overview

The RCS3216F3742CS is a 37.4 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 identified when electrical specifications, mechanical dimensions, and environmental ratings align with the main part's functional requirements. Alternative sources provide equivalent performance for applications where the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

RCS3216F3742CS

Samsung Electro-MechanicsIn Stock: 886RCS3216F3742CS Datasheet

Current PartRFQ

CR1206-FX-3742ELF

Bourns Inc.In Stock: 51028CR1206-FX-3742ELF Datasheet

SimilarRFQ

CRCW120637K4FKEA

Vishay DaleIn Stock: 22298CRCW120637K4FKEA Datasheet

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ERJ-8ENF3742V

Panasonic Electronic ComponentsIn Stock: 52592ERJ-8ENF3742V Datasheet

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RC1206FR-0737K4L

YAGEOIn Stock: 30175RC1206FR-0737K4L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

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

• Resistance Value: 37.4 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.25W / 1/4W (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All four substitute parts meet these criteria. Dimensional variations within the 1206 package envelope and differences in specific features (anti-sulfur vs. automotive AEC-Q200 ratings) do not affect functional substitutability for standard applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status)

CR1206-FX-3742ELF (Bourns Inc.), CRCW120637K4FKEA (Vishay Dale), and RC1206FR-0737K4L (YAGEO) are all active products with full manufacturer support. These three parts are functionally equivalent to the RCS3216F3742CS and suitable for new designs and production applications.

CRCW120637K4FKEA carries automotive AEC-Q200 qualification, making it the preferred choice for automotive applications requiring enhanced reliability documentation.

Secondary Substitute (Legacy Status)

ERJ-8ENF3742V (Panasonic Electronic Components) meets all electrical and mechanical specifications but carries "Not For New Designs" product status. This part is suitable only for replacement or maintenance of existing assemblies where continuity with legacy designs is required.

Compliance Considerations

All five parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-3742ELF replace RCS3216F3742CS in existing designs?

A: Yes. Both parts share identical electrical specifications (37.4 kOhms ±1%, 0.25W), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and package (1206). Height variation (0.030" vs. 0.026") remains within 1206 package tolerance and does not affect PCB layout compatibility.

Q: What is the difference between the Samsung RCS3216F3742CS and Vishay CRCW120637K4FKEA?

A: Electrical and thermal specifications are identical. The primary difference is that CRCW120637K4FKEA includes automotive AEC-Q200 qualification and has a lower seated height (0.024" vs. 0.026"). For automotive applications, CRCW120637K4FKEA is the specified choice.

Q: Why is ERJ-8ENF3742V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and support for this product line. While the part meets all functional requirements, it should be used only for replacement of existing assemblies. New designs should select from active product alternatives.

Q: Are there any feature differences between these substitute parts?

A: RCS3216F3742CS includes anti-sulfur protection. CR1206-FX-3742ELF and RC1206FR-0737K4L specify moisture resistance. ERJ-8ENF3742V and CRCW120637K4FKEA include automotive AEC-Q200 qualification. These feature differences do not affect electrical substitutability for standard applications.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All five parts carry MSL Level 1 (Unlimited), indicating no moisture-related storage or handling restrictions. Standard warehouse conditions are acceptable for all parts.

Q: What is the significance of the 1206 (3216 Metric) package designation?

A: This dual designation indicates the same physical package: 1206 is the imperial designation (0.126" L x 0.063" W), and 3216 Metric is the metric equivalent (3.20mm x 1.60mm). All substitute parts use this identical package, ensuring PCB footprint compatibility.