RC3216F5111CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F5111CS is a 5.11 kOhms ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical dimensions (1206 package), and environmental operating parameters. Alternative sources become necessary for supply chain continuity, inventory availability, or application-specific requirements such as automotive qualification or enhanced pulse withstanding capability.

Key Parameters

Parameter	Value	Unit
Resistance	5.11	kOhms
Tolerance	±1	%
Power Rating	0.25	W (1/4W)
Package / Case	1206 (3216 Metric)	—
Composition	Thick Film	—
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Moisture Sensitivity Level	1 (Unlimited)	—
RoHS Status	ROHS3 Compliant	—
Number of Terminations	2	—

Substitute Part Grouping Explanation

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

Mandatory Matching Parameters:

Resistance value: 5.11 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Moisture sensitivity level: 1 (Unlimited)

Substitution Categories:

Direct Equivalents — Parts meeting all mandatory parameters with identical electrical and mechanical specifications:

CR1206-FX-5111ELF (Bourns Inc.)
RC1206FR-075K11L (YAGEO)

Similar Parts with Enhanced Features — Parts meeting all mandatory parameters with additional certifications or enhanced capabilities:

CRCW12065K11FKEA (Vishay Dale) — Automotive AEC-Q200 qualified
CRCW12065K11FKTA (Vishay Dale) — Automotive AEC-Q200 qualified
ERJ-8ENF5111V (Panasonic Electronic Components) — Automotive AEC-Q200 qualified
RMCF1206FT5K11 (Stackpole Electronics Inc) — Automotive AEC-Q200 qualified

Similar Parts with Elevated Power Rating — Parts meeting all mandatory parameters except power rating, which is increased:

CRCW12065K11FKEAHP (Vishay Dale) — 0.75W (3/4W) rating with pulse withstanding capability

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance (kOhms)	Tolerance (%)	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp (°C)	MSL	RoHS Status	Product Status
RC3216F5111CS	Samsung Electro-Mechanics	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Active
CR1206-FX-5111ELF	Bourns Inc.	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Active
RC1206FR-075K11L	YAGEO	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Active
CRCW12065K11FKEA	Vishay Dale	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Active
CRCW12065K11FKEAHP	Vishay Dale	5.11	±1	0.75	1206	±100	-55 to 155	1	ROHS3 Compliant	Active
CRCW12065K11FKTA	Vishay Dale	5.11	±1	0.25	1206	±100	-55 to 155	1	RoHS non-compliant	Active
ERJ-8ENF5111V	Panasonic Electronic Components	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Not For New Designs
RMCF1206FT5K11	Stackpole Electronics Inc	5.11	±1	0.25	1206	±100	-55 to 155	1	ROHS3 Compliant	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): CR1206-FX-5111ELF (Bourns Inc.) and RC1206FR-075K11L (YAGEO) are direct functional equivalents to RC3216F5111CS. Both maintain Active product status, ROHS3 compliance, and identical electrical and mechanical parameters. Selection between these options is based on supply chain availability and inventory levels.

For Automotive Applications: CRCW12065K11FKEA, CRCW12065K11FKTA, ERJ-8ENF5111V, and RMCF1206FT5K11 are qualified to AEC-Q200 automotive standards. These parts are suitable for automotive-grade circuit designs. CRCW12065K11FKTA carries RoHS non-compliance status and REACH Affected designation; use only where regulatory requirements permit. ERJ-8ENF5111V is marked "Not For New Designs" and should be avoided in new product development.

For Enhanced Power Dissipation: CRCW12065K11FKEAHP provides 0.75W (3/4W) power rating with pulse withstanding capability while maintaining the 1206 package footprint. This part is suitable for applications requiring higher transient power handling within the same physical dimensions.

Compliance Considerations: All recommended direct equivalents and automotive-qualified alternatives maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes and environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can CRCW12065K11FKEAHP (0.75W) be used as a direct replacement for RC3216F5111CS (0.25W)?

A: CRCW12065K11FKEAHP is electrically and mechanically compatible with RC3216F5111CS. The elevated power rating (0.75W vs. 0.25W) does not prevent substitution; the component will operate safely in circuits designed for 0.25W dissipation. However, the higher power rating is unnecessary for applications within the original 0.25W specification. Use this part only when enhanced pulse withstanding or higher transient power handling is required.

Q: What is the difference between direct equivalents and automotive-qualified alternatives?

A: Direct equivalents (CR1206-FX-5111ELF, RC1206FR-075K11L) match all electrical and mechanical specifications without additional certifications. Automotive-qualified alternatives (CRCW12065K11FKEA, ERJ-8ENF5111V, RMCF1206FT5K11) meet AEC-Q200 automotive standards, which impose additional reliability and testing requirements. Use automotive-qualified parts only in automotive applications or where AEC-Q200 certification is contractually required.

Q: Why is ERJ-8ENF5111V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. While ERJ-8ENF5111V remains functionally equivalent and is in stock, it should not be selected for new circuit designs due to potential future supply discontinuation.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All listed substitute parts use the 1206 (3216 Metric) package with identical land pattern requirements. Physical dimensions vary slightly (length 0.122" to 0.126", height 0.024" to 0.030"), but these variations remain within standard PCB design tolerances and do not affect footprint compatibility.

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

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. The part does not require special dry-pack storage, desiccant handling, or bake-out procedures before soldering. This simplifies supply chain logistics and assembly processes compared to higher MSL-rated components.

Q: Can I substitute RC3216F5111CS with a part that has different tolerance (e.g., ±5%)?

A: No. Tolerance is a critical electrical parameter. The ±1% tolerance specification ensures circuit performance within design margins. Substituting with higher tolerance parts (±5%, ±10%) will alter circuit behavior and may cause functional failures. Only parts with ±1% tolerance are acceptable substitutes.

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

A: Substitute parts are available in Tape & Reel (TR) format for automated assembly. CR1206-FX-5111ELF, RC1206FR-075K11L, and all Vishay Dale, Panasonic, and Stackpole parts listed use TR packaging. Verify packaging format with your supplier before procurement to ensure compatibility with your assembly equipment.

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