RC3216F181CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F181CS is a 180 Ohm ±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 is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 901 pieces in stock. Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and application-specific requirements such as automotive qualification or enhanced power ratings.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance Value	180 Ohms	Critical - must match exactly
Tolerance	±1%	Critical - determines circuit accuracy
Power Rating	0.25W (1/4W)	Critical - minimum thermal requirement
Package / Case	1206 (3216 Metric)	Critical - PCB footprint compatibility
Composition	Thick Film	Important - affects performance characteristics
Temperature Coefficient	±100ppm/°C	Important - temperature stability
Operating Temperature Range	-55°C ~ 155°C	Important - application environment
Moisture Sensitivity Level	MSL 1 (Unlimited)	Important - handling and storage
RoHS Status	ROHS3 Compliant	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict matching of electrical and mechanical parameters. All substitute parts listed maintain identical resistance value (180 Ohms), tolerance (±1%), power rating (0.25W minimum), package format (1206), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitutes are ROHS3 compliant with MSL 1 rating.

Substitutes are grouped into two categories:

Direct Substitutes maintain all parameters identical to the main part, including moisture-resistant features where applicable.

Similar Substitutes meet all critical electrical and mechanical parameters but may include enhanced features (automotive AEC-Q200 qualification, pulse withstanding capability, high voltage rating) or differ in minor dimensional specifications (height, length, width within tolerance). These parts are electrically and mechanically compatible but offer additional certifications or performance characteristics.

One part (CRCW1206180RFKEAHP) features 0.75W (3/4W) power rating, exceeding the minimum 0.25W requirement and providing enhanced thermal capability in the same 1206 package.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	RoHS	MSL	Product Status	Features
RC3216F181CS	Samsung Electro-Mechanics	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Moisture Resistant
CR1206-FX-1800ELF	Bourns Inc.	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Moisture Resistant
CRG1206F180R	TE Connectivity Passive Product	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Neohm Series
ERJ-8ENF1800V	Panasonic Electronic Components	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Not For New Designs	Automotive AEC-Q200
RC1206FR-07180RL	YAGEO	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Moisture Resistant
RMCF1206FT180R	Stackpole Electronics Inc	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Automotive AEC-Q200
AC1206FR-07180RL	YAGEO	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Automotive AEC-Q200, Moisture Resistant
CRCW1206180RFKEA	Vishay Dale	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Automotive AEC-Q200
CRCW1206180RFKEAHP	Vishay Dale	180Ω	±1%	0.75	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Automotive AEC-Q200, Pulse Withstanding
KTR18EZPF1800	Rohm Semiconductor	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Active	Automotive AEC-Q200, High Voltage
MCR18ERTF1800	Rohm Semiconductor	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	ROHS3	1	Discontinued at DiGi Electronics	None

Engineering Selection Recommendations

For Standard Industrial Applications: Select CR1206-FX-1800ELF (Bourns), RC1206FR-07180RL (YAGEO), or CRG1206F180R (TE Connectivity). These parts maintain active production status and full compatibility with the RC3216F181CS across all electrical and mechanical parameters.

For Automotive Applications: Select RMCF1206FT180R (Stackpole), AC1206FR-07180RL (YAGEO), CRCW1206180RFKEA (Vishay Dale), or KTR18EZPF1800 (Rohm). These parts carry AEC-Q200 automotive qualification and are actively produced.

For Enhanced Thermal Performance: Select CRCW1206180RFKEAHP (Vishay Dale) when 0.75W power rating is required within the same 1206 package footprint. This part includes pulse withstanding capability and AEC-Q200 qualification.

Avoid: ERJ-8ENF1800V (Panasonic) is marked "Not For New Designs" and MCR18ERTF1800 (Rohm) is discontinued at DiGi Electronics. These parts should not be selected for new circuit designs.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for RC3216F181CS?

A: Yes. All listed substitute parts maintain identical resistance (180 Ohms), tolerance (±1%), minimum power rating (0.25W), package format (1206), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), RoHS3 compliance, and MSL 1 rating. Direct PCB footprint compatibility is confirmed.

Q: What is the difference between "Direct Substitutes" and "Similar Substitutes"?

A: Direct substitutes (CR1206-FX-1800ELF, CRG1206F180R, RC1206FR-07180RL, RMCF1206FT180R) match all parameters of the main part. Similar substitutes include additional features such as automotive AEC-Q200 qualification (AC1206FR-07180RL, CRCW1206180RFKEA, KTR18EZPF1800) or enhanced power rating (CRCW1206180RFKEAHP). All are electrically and mechanically compatible.

Q: Why would I choose a part with automotive AEC-Q200 qualification if my application is not automotive?

A: AEC-Q200 qualified parts undergo additional reliability testing and quality assurance. These parts are suitable for any application requiring enhanced reliability, not only automotive circuits. Selection depends on application requirements and supply chain availability.

Q: Is CRCW1206180RFKEAHP compatible with my circuit designed for 0.25W resistors?

A: Yes. CRCW1206180RFKEAHP is rated for 0.75W (3/4W) power dissipation in the same 1206 package. A higher power rating provides additional thermal margin and is fully compatible with circuits designed for 0.25W minimum. No circuit modification is required.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry MSL 1 rating, confirming identical moisture sensitivity characteristics.

Q: Can I mix different manufacturers' parts in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications, tolerance, package format, and compliance standards. Manufacturing source does not affect circuit performance when specifications are matched. Verify internal procurement and traceability requirements with your organization.

Q: Why is ERJ-8ENF1800V marked "Not For New Designs"?

A: This designation indicates the manufacturer (Panasonic) has discontinued active development and recommends alternative parts for new circuit designs. Existing inventory may be available, but long-term supply cannot be guaranteed. Use only for legacy product support or repair applications.

Q: What is the difference in physical dimensions between substitute parts?

A: All parts conform to 1206 (3216 Metric) package specification. Minor dimensional variations exist within tolerance: length ranges 0.120" to 0.126" (3.05mm to 3.20mm), width 0.061" to 0.063" (1.55mm to 1.60mm), and height 0.024" to 0.030" (0.60mm to 0.75mm). These variations do not affect PCB footprint compatibility or soldering process.

Q: Which substitute part has the highest inventory availability?

A: RC1206FR-07180RL (YAGEO) has 109,801 pieces in stock, followed by CRCW1206180RFKEAHP (Vishay Dale) with 77,769 pieces. For immediate availability, these parts are recommended.

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