RCS3216F21R5CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F21R5CS is a 21.5 Ohm ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings are maintained across different manufacturers. This reference provides direct substitution options for procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

RCS3216F21R5CS

Samsung Electro-MechanicsIn Stock: 981RCS3216F21R5CS Datasheet

Current PartRFQ

CRCW120621R5FKEA

Vishay DaleIn Stock: 18488CRCW120621R5FKEA Datasheet

SimilarRFQ

ERJ-8ENF21R5V

Panasonic Electronic ComponentsIn Stock: 9186ERJ-8ENF21R5V Datasheet

SimilarRFQ

RC1206FR-0721R5L

YAGEOIn Stock: 5157RC1206FR-0721R5L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Matching Criteria:

• Resistance value: 21.5 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• RoHS compliance: ROHS3
• Moisture sensitivity: MSL 1

Allowable Variations:

• Manufacturer identity
• Packaging format (bulk vs. Tape & Reel)
• Physical height within tolerance (0.024" to 0.028" seated height)
• Dimensional length variance (0.122" to 0.126")
• Additional certifications (AEC-Q200 automotive qualification)
• Product status (Active or Not For New Designs)

All identified substitutes meet these criteria and are electrically and mechanically interchangeable with the RCS3216F21R5CS.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Preferred): CRCW120621R5FKEA (Vishay Dale) is the recommended primary substitute. This part maintains Active product status, carries AEC-Q200 automotive qualification, and is available in high inventory (18,419 pcs). All electrical and mechanical parameters are equivalent to the RCS3216F21R5CS.

Secondary Substitute (Active Status): RC1206FR-0721R5L (YAGEO) is an Active product with equivalent specifications. This part is suitable for applications requiring moisture-resistant thick film construction and maintains full electrical compatibility.

Tertiary Substitute (Legacy Applications): ERJ-8ENF21R5V (Panasonic Electronic Components) carries Not For New Designs status and is suitable only for replacement or maintenance of existing assemblies. This part includes AEC-Q200 automotive certification and is electrically equivalent but should not be selected for new product development.

Selection should prioritize Active product status parts (CRCW120621R5FKEA or RC1206FR-0721R5L) for new designs. The ERJ-8ENF21R5V is restricted to legacy or repair applications only.

Frequently Asked Questions (FAQ)

Q: Can CRCW120621R5FKEA replace RCS3216F21R5CS in all applications? A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (21.5 Ohms ±1%), power rating (0.25W), package (1206), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). The CRCW part includes additional AEC-Q200 automotive certification.

Q: What is the difference between the substitute parts? A: All three substitutes meet core electrical specifications. CRCW120621R5FKEA and RC1206FR-0721R5L are Active products suitable for new designs. ERJ-8ENF21R5V is Not For New Designs status. CRCW and ERJ-8EN parts carry AEC-Q200 automotive qualification; RC_L does not. Physical height varies slightly (0.024" to 0.028" seated).

Q: Are there packaging differences between substitutes? A: The RCS3216F21R5CS packaging format is not specified in the data. All three substitutes are available in Tape & Reel (TR) format. Verify packaging requirements for your procurement process.

Q: Can ERJ-8ENF21R5V be used in new product designs? A: No. ERJ-8ENF21R5V carries Not For New Designs status. This part is restricted to replacement, repair, or maintenance of existing assemblies. Use CRCW120621R5FKEA or RC1206FR-0721R5L for new designs.

Q: Are all substitutes RoHS3 compliant? A: Yes. All four parts (RCS3216F21R5CS, CRCW120621R5FKEA, ERJ-8ENF21R5V, and RC1206FR-0721R5L) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the significance of AEC-Q200 certification on substitute parts? A: AEC-Q200 is an automotive qualification standard. CRCW120621R5FKEA and ERJ-8ENF21R5V carry this certification, indicating suitability for automotive applications. RC1206FR-0721R5L does not specify this certification. Select based on application requirements.

Q: Are dimensional variations between substitutes significant? A: Dimensional variations are within acceptable tolerance for 1206 package specifications. Length ranges from 0.122" to 0.126"; height from 0.024" to 0.028". Verify PCB layout and assembly equipment compatibility for your specific application.