RCS3216F37R4CS Equivalent & Substitute Parts

Part Overview

The RCS3216F37R4CS is a 37.4 Ohm ±1% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This thick film resistor 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 currently Active in product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and specific application requirements such as automotive qualification or enhanced power ratings.

Substiute Parts

RCS3216F37R4CS

Samsung Electro-MechanicsIn Stock: 832RCS3216F37R4CS Datasheet

Current PartRFQ

AC1206FR-0737R4L

YAGEOIn Stock: 26138AC1206FR-0737R4L Datasheet

SimilarRFQ

CRCW120637R4FKEA

Vishay DaleIn Stock: 25048CRCW120637R4FKEA Datasheet

SimilarRFQ

CRCW120637R4FKEAHP

Vishay DaleIn Stock: 14629CRCW120637R4FKEAHP Datasheet

SimilarRFQ

ERJ-8ENF37R4V

Panasonic Electronic ComponentsIn Stock: 51243ERJ-8ENF37R4V Datasheet

SimilarRFQ

RC1206FR-0737R4L

YAGEOIn Stock: 44360RC1206FR-0737R4L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F37R4CS is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Resistance value: 37.4 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Power rating: 0.25W minimum (equal or higher acceptable)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or wider acceptable)
• Composition: Thick Film (exact match required)
• Terminations: 2 (exact match required)

Compliance Criteria:

• RoHS3 compliance required
• MSL 1 (Unlimited) required

The substitute parts listed below meet all primary substitution criteria. Variations in specific features (such as automotive AEC-Q200 qualification or pulse withstanding capability) represent enhancements that do not preclude substitution but may introduce additional certifications or performance characteristics beyond the base specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

1. AC1206FR-0737R4L (YAGEO) – Fully equivalent with automotive AEC-Q200 qualification. Identical electrical specifications and package dimensions. 26,071 units in stock.

2. CRCW120637R4FKEA (Vishay Dale) – Fully equivalent with automotive AEC-Q200 qualification. Identical electrical specifications. 25,009 units in stock.

3. RC1206FR-0737R4L (YAGEO) – Fully equivalent without automotive qualification. Identical electrical specifications and package dimensions. 44,342 units in stock.

Enhanced Power Rating Option:

4. CRCW120637R4FKEAHP (Vishay Dale) – Equivalent electrical specifications with enhanced 0.75W (3/4W) power rating and pulse withstanding capability. Automotive AEC-Q200 qualified. Use when higher power dissipation margin is required. 14,606 units in stock.

Legacy Status (Not Recommended for New Designs):

5. ERJ-8ENF37R4V (Panasonic Electronic Components) – Fully equivalent specifications with automotive AEC-Q200 qualification. Product status is "Not For New Designs." 51,212 units in stock. Use only for replacement or legacy system support.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature range. Selection should prioritize Active status parts for new design implementations.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F37R4CS with any of the listed parts?

A: Yes, all listed parts meet the core electrical and mechanical substitution criteria: 37.4 Ohm resistance, ±1% tolerance, 0.25W minimum power rating, 1206 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. However, prioritize parts with Active product status for new designs.

Q: What is the difference between the standard substitute parts and CRCW120637R4FKEAHP?

A: CRCW120637R4FKEAHP has a higher power rating of 0.75W (3/4W) compared to the 0.25W (1/4W) base specification, and includes pulse withstanding capability. All other electrical parameters remain identical. Use this part when circuit design requires additional power dissipation margin.

Q: Are the automotive-qualified parts (AEC-Q200) interchangeable with non-automotive versions?

A: Yes. Automotive qualification represents an additional certification layer and does not restrict substitution in non-automotive applications. AEC-Q200 qualified parts (AC1206FR-0737R4L, CRCW120637R4FKEA, CRCW120637R4FKEAHP, ERJ-8ENF37R4V) are fully compatible with the base RCS3216F37R4CS in any application.

Q: Why is ERJ-8ENF37R4V marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development for this part series. While the part remains functionally equivalent and is in stock, it should not be selected for new product designs. Use AC1206FR-0737R4L, CRCW120637R4FKEA, or RC1206FR-0737R4L instead.

Q: Do package dimensions vary between substitutes?

A: All parts use the 1206 (3216 Metric) package. Minor dimensional variations exist within tolerance: length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), and height ranges from 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard PCB design tolerances and do not affect interchangeability.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the base RCS3216F37R4CS specification.

Q: Which substitute offers the best inventory availability?

A: RC1206FR-0737R4L (YAGEO) has the highest inventory with 44,342 units in stock, followed by ERJ-8ENF37R4V (Panasonic) with 51,212 units. However, ERJ-8ENF37R4V is marked "Not For New Designs." For active production, RC1206FR-0737R4L or AC1206FR-0737R4L are recommended.