RC3216F5110CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F5110CS is a 511 Ohm ±1% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and maintains ROHS3 compliance with MSL 1 rating. The part is currently Active in production status with 1024 pieces in stock inventory. Equivalent and substitute parts are identified to support design flexibility, supply chain alternatives, and application-specific requirements such as automotive qualification or enhanced power ratings.

Key Parameters

Parameter	Value	Specification Basis
Resistance	511 Ohms	Core electrical specification
Tolerance	±1%	Precision requirement
Power Rating	0.25W (1/4W)	Thermal dissipation capacity
Package / Case	1206 (3216 Metric)	Physical form factor
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Stability specification
Operating Temperature Range	-55°C to 155°C	Environmental limits
Terminations	2	Connection points
RoHS Status	ROHS3 Compliant	Environmental regulation
Moisture Sensitivity Level	1 (Unlimited)	Handling requirement

Substitute Part Grouping Explanation

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

Primary Equivalence Criteria:

Resistance value: 511 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature Range: -55°C to 155°C (exact match required)
Number of Terminations: 2 (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (exact match required)

Secondary Variation Parameters (Allowed Differences):

Power Rating: 0.25W (1/4W) baseline; 0.75W (3/4W) represents upgrade capability
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or bulk formats
Manufacturer: Different qualified suppliers
Features: Additional certifications (AEC-Q200, Anti-Sulfur) or enhanced capabilities
Physical dimensions: Minor variations within 1206 package tolerance
Product Status: Active or Not For New Designs

Substitute parts are grouped into three categories:

Direct Equivalents: Identical electrical and mechanical specifications with different manufacturers or packaging.

Upgrade Parts: Enhanced specifications (higher power rating, automotive qualification) maintaining full backward compatibility.

Similar Parts: Alternative suppliers with equivalent core specifications but different feature sets or certifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Op Temp Range	Features	Product Status	RoHS	MSL
RC3216F5110CS	Samsung Electro-Mechanics	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active	ROHS3	1
CR1206-FX-5110ELF	Bourns Inc.	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active	ROHS3	1
RC1206FR-07511RL	YAGEO	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active	ROHS3	1
AC1206FR-07511RL	YAGEO	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3	1
CRCW1206511RFKEA	Vishay Dale	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Active	ROHS3	1
CRCW1206511RFKEAHP	Vishay Dale	511 Ω	±1%	0.75	1206	Thick Film	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3	1
ERJ-8ENF5110V	Panasonic Electronic Components	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Not For New Designs	ROHS3	1
RMCS1206FT511R	Stackpole Electronics Inc	511 Ω	±1%	0.25	1206	Thick Film	±100ppm/°C	-55 to 155°C	Anti-Sulfur	Active	ROHS3	1

Engineering Selection Recommendations

Direct Substitution (No Design Changes Required):

CR1206-FX-5110ELF (Bourns Inc.) and RC1206FR-07511RL (YAGEO) are direct functional equivalents to RC3216F5110CS. Both maintain identical electrical specifications, package form factor, and environmental ratings. Selection between these options is based on packaging preference (Tape & Reel availability) and supply chain considerations. Both are Active status products with full ROHS3 compliance and MSL 1 rating.

Automotive-Qualified Alternatives:

AC1206FR-07511RL (YAGEO), CRCW1206511RFKEA (Vishay Dale), and ERJ-8ENF5110V (Panasonic) incorporate AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability. AC1206FR-07511RL and CRCW1206511RFKEA are Active status products. ERJ-8ENF5110V carries "Not For New Designs" status and should be avoided for new development; existing designs using this part may continue with it.

Enhanced Power Rating Option:

CRCW1206511RFKEAHP (Vishay Dale) provides 0.75W (3/4W) power rating with pulse withstanding capability while maintaining the 1206 package footprint. This upgrade is suitable for applications requiring higher thermal dissipation. The part is AEC-Q200 qualified and Active status. This part is backward compatible in footprint but requires thermal design verification for the increased power capability.

Specialized Feature Option:

RMCS1206FT511R (Stackpole Electronics Inc) features anti-sulfur thick film composition, suitable for environments with sulfur exposure risk. This part maintains all core electrical specifications and is Active status. Selection is application-dependent based on environmental exposure requirements.

Product Status Consideration:

All recommended parts except ERJ-8ENF5110V are Active status. ERJ-8ENF5110V is marked "Not For New Designs" and should only be used for legacy design maintenance or existing production continuity.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3216F5110CS with any of the listed parts without PCB redesign?

A: Yes. CR1206-FX-5110ELF, RC1206FR-07511RL, AC1206FR-07511RL, CRCW1206511RFKEA, ERJ-8ENF5110V, and RMCS1206FT511R all use the 1206 (3216 Metric) package with identical footprint and electrical specifications. CRCW1206511RFKEAHP also uses 1206 package but with enhanced power rating; verify thermal design compatibility before substitution.

Q: What is the difference between the standard RC3216F5110CS and the automotive-qualified versions?

A: Automotive-qualified versions (AC1206FR-07511RL, CRCW1206511RFKEA, ERJ-8ENF5110V) carry AEC-Q200 certification, indicating compliance with automotive reliability and testing standards. These parts are suitable for automotive applications where qualification is required. The RC3216F5110CS does not carry AEC-Q200 certification.

Q: Why would I choose CRCW1206511RFKEAHP with 0.75W rating over the standard 0.25W parts?

A: CRCW1206511RFKEAHP provides higher power dissipation capability (0.75W vs 0.25W) in the same 1206 package footprint. Select this part if circuit analysis indicates power dissipation exceeding 0.25W. The part is backward compatible in footprint and maintains all other electrical specifications.

Q: What does "Not For New Designs" mean for ERJ-8ENF5110V?

A: "Not For New Designs" indicates the manufacturer has discontinued active development and recommends against using this part in new product designs. Existing designs currently using ERJ-8ENF5110V may continue production, but new designs should select from Active status alternatives such as RC1206FR-07511RL, CR1206-FX-5110ELF, or CRCW1206511RFKEA.

Q: Are all these parts RoHS3 compliant?

A: Yes. All listed parts carry ROHS3 Compliant status and are suitable for applications requiring RoHS compliance.

Q: What is the significance of MSL 1 rating?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life with no special moisture control requirements during storage or handling. All listed parts carry MSL 1 rating, eliminating moisture-related handling constraints.

Q: Can I use RMCS1206FT511R in standard applications, or is it only for sulfur-exposed environments?

A: RMCS1206FT511R can be used in standard applications. The anti-sulfur feature is an additional capability. Select this part if the application environment includes sulfur exposure risk (industrial, marine, or high-pollution areas). For standard applications, any of the other listed parts are equally suitable.

Q: What packaging formats are available for these substitute parts?

A: Packaging varies by manufacturer: CR1206-FX-5110ELF, RC1206FR-07511RL, AC1206FR-07511RL, CRCW1206511RFKEAHP, ERJ-8ENF5110V, and RMCS1206FT511R are available in Tape & Reel (TR) format. CRCW1206511RFKEA is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging availability with your supplier for production requirements.

Q: Are there any dimensional differences between these parts that could affect PCB layout?

A: All parts use the 1206 (3216 Metric) package with standard footprint compatibility. Minor height variations exist (0.024" to 0.030" seated height maximum), but these do not affect PCB layout or assembly. Verify specific height requirements if clearance constraints exist in your design.

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