RC3216F1211CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F1211CS is a 1.21 kOhms ±1% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and complies with ROHS3 and REACH Unaffected standards. The part is currently in active production status with 992 pieces available in inventory.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, dimensions, termination count), and environmental performance characteristics (operating temperature range, moisture resistance, composition type). Substitute parts enable design flexibility, supply chain optimization, and alternative sourcing when the primary component becomes unavailable.

Key Parameters

Parameter	Value
Resistance	1.21 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
Features	Moisture Resistant
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

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

Electrical Equivalence: Resistance value (1.21 kOhms), tolerance (±1%), and power rating (0.25W) must match exactly. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) must be identical or superior.

Mechanical Compatibility: Package designation (1206 / 3216 Metric), physical dimensions, height-seated maximum, and termination count (2) must be compatible with PCB layout and assembly processes.

Material & Environmental Compliance: Composition (thick film), moisture resistance, RoHS3 compliance, and MSL rating (1) establish baseline environmental performance. Additional certifications (AEC-Q200 for automotive applications) represent upgrades rather than substitutes.

Packaging Format: Tape & Reel (TR) packaging is standard for high-volume surface mount applications and does not restrict substitution eligibility.

Substitute parts are categorized as:

Direct Substitutes: Identical electrical and mechanical specifications
Upgrade Substitutes: Enhanced features (automotive AEC-Q200 certification) with equivalent base specifications
Similar Substitutes: Matching core parameters with minor dimensional or power rating variations

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Op. Temp Range	Size L x W (mm)	Height Max (mm)	Features	RoHS Status	Product Status
RC3216F1211CS	Samsung Electro-Mechanics	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.66	Moisture Resistant	ROHS3 Compliant	Active
CR1206-FX-1211ELF	Bourns Inc.	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.75	Moisture Resistant	ROHS3 Compliant	Active
RC1206FR-071K21L	YAGEO	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	Moisture Resistant	ROHS3 Compliant	Active
AC1206FR-071K21L	YAGEO	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	Automotive AEC-Q200, Moisture Resistant	ROHS3 Compliant	Active
CRCW12061K21FKEA	Vishay Dale	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.60	Automotive AEC-Q200	ROHS3 Compliant	Active
CRCW12061K21FKEAHP	Vishay Dale	1.21 kOhms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	Automotive AEC-Q200, Pulse Withstanding	ROHS3 Compliant	Active
CRCW12061K21FKTA	Vishay Dale	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.60	Automotive AEC-Q200	RoHS non-compliant	Active
ERJ-8ENF1211V	Panasonic Electronic Components	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.70	Automotive AEC-Q200	ROHS3 Compliant	Not For New Designs
ERJ-P08F1211V	Panasonic Electronic Components	1.21 kOhms	±1%	0.667W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.70	Automotive AEC-Q200, Pulse Withstanding	ROHS3 Compliant	Active
RMCF1206FT1K21	Stackpole Electronics Inc	1.21 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.70	Automotive AEC-Q200	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Substitutes (Equivalent Specifications):

CR1206-FX-1211ELF (Bourns Inc.) and RC1206FR-071K21L (YAGEO) are direct electrical and mechanical equivalents to RC3216F1211CS. Both maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range. Dimensional variations (height-seated maximum) are within acceptable PCB assembly tolerances. Both are ROHS3 compliant and active in production. CR1206-FX-1211ELF offers higher inventory availability (45,750 units) compared to the primary part.

Upgrade Substitutes (Enhanced Certifications):

AC1206FR-071K21L, CRCW12061K21FKEA, CRCW12061K21FKTA, ERJ-8ENF1211V, and RMCF1206FT1K21 include automotive AEC-Q200 certification while maintaining equivalent base electrical specifications. These parts are suitable for applications requiring automotive-grade reliability. AC1206FR-071K21L and CRCW12061K21FKEA are recommended for new designs requiring AEC-Q200 compliance. CRCW12061K21FKTA is RoHS non-compliant and REACH affected; use only in applications where regulatory exemptions apply. ERJ-8ENF1211V carries "Not For New Designs" status; avoid for new product development.

Higher Power Rating Alternatives:

CRCW12061K21FKEAHP (0.75W, 3/4W) and ERJ-P08F1211V (0.667W, 2/3W) provide increased power dissipation capability within the same 1206 package. These are suitable for applications requiring thermal margin or pulse withstanding performance. Both include AEC-Q200 certification and are ROHS3 compliant.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity level) except CRCW12061K21FKTA. All operate across the identical -55°C to 155°C temperature range. Dimensional compatibility is confirmed across all substitutes; minor height variations do not affect PCB assembly or electrical performance.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-1211ELF replace RC3216F1211CS in existing designs?

A: Yes. CR1206-FX-1211ELF is a direct electrical and mechanical equivalent. Resistance (1.21 kOhms), tolerance (±1%), power rating (0.25W), package (1206), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C) are identical. Height-seated maximum differs by 0.09mm (0.75mm vs. 0.66mm), which is within standard PCB assembly tolerances and does not affect circuit performance.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (CR1206-FX-1211ELF, RC1206FR-071K21L) match all electrical and mechanical specifications of the primary part. Upgrade substitutes (AC1206FR-071K21L, CRCW12061K21FKEA, RMCF1206FT1K21) add automotive AEC-Q200 certification for enhanced reliability in automotive applications while maintaining equivalent base specifications. Upgrade substitutes are backward-compatible with designs using the primary part.

Q: Why is ERJ-8ENF1211V marked "Not For New Designs"?

A: ERJ-8ENF1211V carries "Not For New Designs" status from Panasonic Electronic Components, indicating the manufacturer is phasing out this product line. While electrically and mechanically equivalent, this part should not be selected for new product development. Use active-status alternatives such as RMCF1206FT1K21 or CRCW12061K21FKEA instead.

Q: Can CRCW12061K21FKEAHP (0.75W) be used in place of RC3216F1211CS (0.25W)?

A: CRCW12061K21FKEAHP is electrically compatible but rated for higher power dissipation (0.75W vs. 0.25W). This part can be used as a direct replacement in circuits designed for 0.25W operation, as it provides additional thermal margin. However, it is not a substitute for applications requiring the exact 0.25W power rating specification. Verify that circuit design does not depend on the lower power rating.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes are ROHS3 compliant except CRCW12061K21FKTA, which is RoHS non-compliant and REACH affected. CRCW12061K21FKTA should be used only in applications where regulatory exemptions or legacy product support justifies non-compliance. For new designs and regulated markets, select from ROHS3-compliant alternatives.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed substitutes maintain MSL 1 rating, confirming compatibility with standard manufacturing and storage practices without desiccant packaging or bake-out procedures.

Q: How do dimensional variations affect PCB assembly compatibility?

A: All substitute parts use the 1206 (3216 Metric) package with identical length (3.10mm to 3.20mm) and width (1.60mm) dimensions. Height-seated maximum varies from 0.60mm to 0.75mm across substitutes. These variations are within standard PCB pad design tolerances and do not affect reflow soldering, component placement, or electrical performance. Verify PCB clearance for components with maximum height of 0.75mm (CR1206-FX-1211ELF, ERJ-8ENF1211V, RMCF1206FT1K21).

Q: Which substitute offers the best inventory availability?

A: RC1206FR-071K21L (YAGEO) provides the highest inventory availability with 282,123 units in stock, followed by CR1206-FX-1211ELF (Bourns Inc.) with 45,750 units. Both are direct electrical equivalents with active production status and ROHS3 compliance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message