RC3216J181CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216J181CS is a 180 Ohm ±5% 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 characteristics and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and commercial applications requiring standard tolerance resistive elements.

Equivalent and substitute parts are identified based on matching electrical specifications (180 Ohms resistance, 0.25W power rating, 1206 package) and mechanical compatibility. Substitute parts are available from multiple manufacturers including YAGEO, Bourns Inc., TE Connectivity, Panasonic, Rohm Semiconductor, and Stackpole Electronics, offering options with improved tolerance grades and automotive-grade certifications.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance	180 Ohms	Critical - must match exactly
Tolerance	±5%	Critical - defines accuracy class
Power Rating	0.25W (1/4W)	Critical - thermal capability
Package / Case	1206 (3216 Metric)	Critical - PCB footprint compatibility
Composition	Thick Film	Important - manufacturing technology
Temperature Coefficient	±100ppm/°C	Important - temperature stability
Operating Temperature Range	-55°C ~ 155°C	Important - environmental limits
Moisture Sensitivity Level	MSL 1 (Unlimited)	Important - handling requirements
RoHS Status	ROHS3 Compliant	Important - regulatory compliance

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter compatibility with the RC3216J181CS:

Direct Substitutes (Same Tolerance ±5%): Parts maintaining identical tolerance specification (±5%) with 180 Ohm resistance, 0.25W power rating, and 1206 package format. These parts provide direct functional equivalence without circuit performance modification.

Upgrade Substitutes (Improved Tolerance ±1%): Parts offering tighter tolerance specification (±1%) while maintaining all other critical parameters: 180 Ohm resistance, 0.25W power rating, 1206 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. Upgrade substitutes provide enhanced accuracy and may include additional certifications such as Automotive AEC-Q200 qualification.

Substitution Logic: All substitute parts must satisfy the following mandatory criteria:

Resistance value: 180 Ohms (exact match)
Power rating: 0.25W minimum
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature: -55°C ~ 155°C minimum range
Moisture sensitivity: MSL 1
RoHS compliance: ROHS3 Compliant

Tolerance may be equal (±5%) or improved (±1%) without affecting substitutability. Additional features such as automotive AEC-Q200 certification or moisture resistance do not prevent substitution but represent enhanced capability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	MSL	RoHS	Product Status
RC3216J181CS	Samsung Electro-Mechanics	180Ω	±5%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
RC1206JR-07180RL	YAGEO	180Ω	±5%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
AC1206JR-07180RL	YAGEO	180Ω	±5%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
AC1206FR-07180RL	YAGEO	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
CR1206-FX-1800ELF	Bourns Inc.	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
CRG1206F180R	TE Connectivity Passive Product	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
ERJ-8ENF1800V	Panasonic Electronic Components	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Not For New Designs
KTR18EZPF1800	Rohm Semiconductor	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
MCR18ERTF1800	Rohm Semiconductor	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Discontinued at DiGi Electronics
RC1206FR-07180RL	YAGEO	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active
RMCF1206FT180R	Stackpole Electronics Inc	180Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	1	ROHS3	Active

Engineering Selection Recommendations

For Direct Replacement (Same Tolerance ±5%):

RC1206JR-07180RL (YAGEO) and AC1206JR-07180RL (YAGEO) provide equivalent functionality to the RC3216J181CS with identical electrical and mechanical specifications. Both parts are Active status with full ROHS3 compliance. RC1206JR-07180RL offers the highest inventory availability (4447 pcs) among direct substitutes. AC1206JR-07180RL includes Automotive AEC-Q200 certification and moisture resistant features, providing enhanced reliability for demanding applications while maintaining ±5% tolerance specification.

For Upgraded Performance (±1% Tolerance):

RC1206FR-07180RL (YAGEO) is the recommended upgrade substitute, offering ±1% tolerance with 109,801 pcs inventory availability, Active product status, and moisture resistant features. This part provides superior accuracy without introducing compatibility issues.

RMCF1206FT180R (Stackpole Electronics) and AC1206FR-07180RL (YAGEO) are alternative upgrade options with Automotive AEC-Q200 certification, suitable for automotive and high-reliability applications. Both maintain Active product status with substantial inventory levels (24,859 pcs and 5,934 pcs respectively).

CR1206-FX-1800ELF (Bourns Inc.) offers the highest inventory availability among upgrade substitutes (32,025 pcs) with Active status and ±1% tolerance.

KTR18EZPF1800 (Rohm Semiconductor) combines ±1% tolerance with Automotive AEC-Q200 certification and High Voltage features, suitable for specialized automotive applications requiring enhanced voltage performance.

Parts to Avoid:

ERJ-8ENF1800V (Panasonic) carries "Not For New Designs" status and should not be selected for new circuit development.

MCR18ERTF1800 (Rohm Semiconductor) is discontinued at DiGi Electronics and should be avoided for production applications requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can RC1206JR-07180RL directly replace RC3216J181CS without circuit modification?

A: Yes. RC1206JR-07180RL matches all critical parameters: 180 Ohm resistance, ±5% tolerance, 0.25W power rating, 1206 package, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range, MSL 1, and ROHS3 compliance. No circuit redesign is required.

Q: What is the difference between ±5% and ±1% tolerance substitutes?

A: Tolerance defines the maximum deviation from the nominal 180 Ohm value. ±5% tolerance allows deviation up to ±9 Ohms (171-189 Ohms), while ±1% tolerance restricts deviation to ±1.8 Ohms (178.2-181.8 Ohms). ±1% substitutes provide superior accuracy for precision circuits but are functionally compatible with ±5% designs.

Q: Are Automotive AEC-Q200 certified parts compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates enhanced reliability testing and qualification standards. Parts meeting AEC-Q200 are fully compatible with non-automotive applications and provide superior reliability margins.

Q: Does package dimension variation affect substitutability?

A: All substitute parts use 1206 (3216 Metric) package with identical PCB footprint. Minor height variations (0.026" to 0.030" seated height) do not affect substitutability for standard PCB assembly processes.

Q: Can I substitute a ±1% tolerance part into a circuit designed for ±5% tolerance?

A: Yes. ±1% tolerance parts are fully backward compatible with ±5% designs. The tighter tolerance provides improved circuit performance without introducing incompatibility.

Q: Which substitute offers the best long-term supply availability?

A: RC1206FR-07180RL (YAGEO) with 109,801 pcs inventory and Active status provides the strongest supply assurance. CR1206-FX-1800ELF (Bourns) with 32,025 pcs is the second option.

Q: Are moisture resistant features necessary for all applications?

A: Moisture resistant features are beneficial for high-humidity environments and extended storage conditions. All substitute parts maintain MSL 1 (unlimited moisture sensitivity), making moisture resistance an optional enhancement rather than a requirement.

Q: What is the significance of ROHS3 compliance?

A: ROHS3 compliance certifies that the part contains no restricted hazardous substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs) and meets environmental regulations for electronic component manufacturing. All listed substitutes are ROHS3 compliant.

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