RCS3216F21R0CS Equivalent & Substitute Parts

Part Overview

The RCS3216F21R0CS is a 21 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is ROHS3 compliant and operates across -55°C to 155°C temperature range with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package format and performance parameters.

Substiute Parts

RCS3216F21R0CS

Samsung Electro-MechanicsIn Stock: 908RCS3216F21R0CS Datasheet

Current PartRFQ

CRCW120621R0FKEA

Vishay DaleIn Stock: 15686CRCW120621R0FKEA Datasheet

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ERJ-8ENF21R0V

Panasonic Electronic ComponentsIn Stock: 45598ERJ-8ENF21R0V Datasheet

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RC1206FR-0721RL

YAGEOIn Stock: 19114RC1206FR-0721RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution validity for the RCS3216F21R0CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 21 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package format: 1206 (3216 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

All identified substitute parts maintain these exact specifications. Variations in physical dimensions (length, width, height) and packaging format (Tape & Reel) do not affect electrical or functional compatibility when the core parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

CRCW120621R0FKEA (Vishay Dale) and RC1206FR-0721RL (YAGEO) are both classified as Active products with full production support. Both maintain complete electrical and mechanical equivalence to the RCS3216F21R0CS. CRCW120621R0FKEA includes automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability. RC1206FR-0721RL maintains moisture-resistant characteristics aligned with the original part specification.

Secondary Substitute (Legacy Status):

ERJ-8ENF21R0V (Panasonic Electronic Components) is classified as Not For New Designs. This part maintains full electrical and mechanical equivalence but is designated for legacy system support and repair applications only. New design implementations should not incorporate this part number.

Compliance Alignment:

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Selection between active alternatives depends on supply chain availability, packaging requirements (Tape & Reel format), and application-specific certifications (automotive AEC-Q200 for CRCW120621R0FKEA).

Frequently Asked Questions (FAQ)

Q: Can CRCW120621R0FKEA replace RCS3216F21R0CS in existing designs?

A: Yes. CRCW120621R0FKEA maintains identical electrical specifications (21 Ohms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C) and mechanical compatibility (1206 package, 2 terminations, thick film composition). Both are ROHS3 compliant with MSL 1 rating. The primary difference is packaging format (Tape & Reel) and automotive AEC-Q200 qualification on the Vishay part.

Q: What is the difference between RC1206FR-0721RL and RCS3216F21R0CS?

A: Electrical and mechanical specifications are identical. Both feature 21 Ohms ±1%, 0.25W power rating, ±100ppm/°C temperature coefficient, and 1206 package format. Physical dimensions vary slightly (YAGEO: 3.10mm L vs Samsung: 3.20mm L; height 0.65mm vs 0.66mm), but these variations remain within standard 1206 package tolerances and do not affect circuit performance or PCB layout compatibility.

Q: Why is ERJ-8ENF21R0V marked "Not For New Designs"?

A: ERJ-8ENF21R0V is classified as legacy product status by Panasonic Electronic Components. This designation indicates the manufacturer is not actively developing or promoting this part for new applications. Existing systems using this part may continue operation, but new circuit designs should select from Active status alternatives (CRCW120621R0FKEA or RC1206FR-0721RL).

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. CRCW120621R0FKEA, ERJ-8ENF21R0V, and RC1206FR-0721RL are all specified with Tape & Reel (TR) packaging format. This format is standard for automated PCB assembly processes. Original packaging specification for RCS3216F21R0CS is not provided in the reference data.

Q: Do substitute parts maintain the same moisture resistance characteristics?

A: All parts maintain MSL 1 (Unlimited) moisture sensitivity rating. RCS3216F21R0CS and RC1206FR-0721RL are explicitly specified as moisture resistant. CRCW120621R0FKEA and ERJ-8ENF21R0V do not list moisture resistance as a specific feature but maintain equivalent MSL classification, indicating compatible moisture handling characteristics for standard PCB assembly and storage conditions.

Q: Can these parts be used interchangeably in automotive applications?

A: CRCW120621R0FKEA carries automotive AEC-Q200 qualification, making it suitable for automotive-grade applications. RCS3216F21R0CS, ERJ-8ENF21R0V, and RC1206FR-0721RL do not specify automotive qualification. Application requirements determine whether AEC-Q200 certification is mandatory. For non-automotive or general industrial applications, all four parts are electrically and mechanically equivalent.