RC3216J180CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216J180CS is an 18 Ohm ±5% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component is actively produced and widely used in general-purpose electronic applications requiring moisture-resistant resistive elements. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and environmental ratings. Alternative components may be required due to supply availability, design upgrades for improved tolerance or automotive qualification, or packaging format preferences.

Key Parameters

Parameter	Value	Specification Type
Resistance Value	18 Ohms	Electrical
Tolerance	±5%	Electrical
Power Rating	0.25W (1/4W)	Electrical
Package / Case	1206 (3216 Metric)	Mechanical
Composition	Thick Film	Material
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C to 155°C	Environmental
Moisture Sensitivity Level	1 (Unlimited)	Environmental
RoHS Status	ROHS3 Compliant	Compliance

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical compatibility with the RC3216J180CS:

Direct Equivalents (Same Tolerance ±5%): Parts maintaining identical 18 Ohm resistance, ±5% tolerance, 0.25W power rating, and 1206 package format. These components provide direct functional replacement without circuit performance modification.

Upgrade Substitutes (Improved Tolerance ±1%): Parts offering tighter tolerance specification (±1% versus ±5%) while maintaining 18 Ohm resistance, 0.25W power rating, and 1206 package compatibility. These upgrades provide enhanced circuit accuracy. One variant (CRCW120618R0FKEAHP) features increased 0.75W power rating, suitable for higher dissipation applications within the same package footprint.

Similar Parts (Matching Core Specifications): Components with identical resistance, power rating, and package but differing in tolerance or featuring automotive AEC-Q200 qualification. These parts satisfy the same circuit function with additional certifications or specifications.

Substitution Criteria:

Resistance: 18 Ohms (exact match required)
Package: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C to 155°C (exact match required)
Tolerance: ±5% minimum (±1% acceptable as upgrade)
Power Rating: 0.25W minimum (0.75W acceptable as upgrade)
Moisture Sensitivity: MSL 1 (exact match required)
RoHS/REACH: ROHS3 Compliant, REACH Unaffected (exact match required)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status
RC3216J180CS	Samsung Electro-Mechanics	18 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active
RC1206JR-0718RL	YAGEO	18 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active
AC1206FR-0718RL	YAGEO	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Active
CR1206-FX-18R0ELF	Bourns Inc.	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active
ERJ-8ENF18R0V	Panasonic Electronic Components	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Not For New Designs
MCR18ERTF18R0	Rohm Semiconductor	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	—	Discontinued at DiGi Electronics
RC1206FR-0718RL	YAGEO	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	Active
AC1206JR-0718RL	YAGEO	18 Ω	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Active
CRCW120618R0FKEA	Vishay Dale	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Active
CRCW120618R0FKEAHP	Vishay Dale	18 Ω	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Pulse Withstanding	Active
RMCF1206FT18R0	Stackpole Electronics Inc	18 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	Active

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): RC1206JR-0718RL (YAGEO) is the primary direct equivalent, offering identical electrical specifications and ±5% tolerance matching. This part maintains full compatibility with existing circuit designs and PCB layouts.

For Tolerance Upgrade (±5% to ±1%): RC1206FR-0718RL (YAGEO) provides tighter tolerance specification while maintaining moisture resistance and active product status. This upgrade improves circuit accuracy without requiring design modifications. CRCW120618R0FKEA (Vishay Dale) and RMCF1206FT18R0 (Stackpole Electronics Inc) offer equivalent ±1% tolerance with automotive AEC-Q200 qualification for applications requiring enhanced reliability standards.

For Automotive Applications: AC1206FR-0718RL (YAGEO), AC1206JR-0718RL (YAGEO), CRCW120618R0FKEA (Vishay Dale), CRCW120618R0FKEAHP (Vishay Dale), and RMCF1206FT18R0 (Stackpole Electronics Inc) all carry AEC-Q200 automotive qualification. CRCW120618R0FKEAHP additionally features pulse withstanding capability and 0.75W power rating for higher dissipation automotive circuits.

For Higher Power Dissipation: CRCW120618R0FKEAHP (Vishay Dale) provides 0.75W power rating within the same 1206 package footprint, suitable for applications requiring increased thermal capability while maintaining identical resistance and tolerance specifications.

Parts to Avoid for New Designs: ERJ-8ENF18R0V (Panasonic Electronic Components) carries "Not For New Designs" status. MCR18ERTF18R0 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new applications.

Compliance Verification: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original RC3216J180CS environmental certifications.

Frequently Asked Questions (FAQ)

Q: Can RC1206JR-0718RL directly replace RC3216J180CS without circuit modification?

A: Yes. RC1206JR-0718RL is a direct equivalent offering identical 18 Ohm resistance, ±5% tolerance, 0.25W power rating, 1206 package format, and operating temperature range. No circuit or PCB layout changes are required.

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

A: Tolerance specifies the maximum deviation from the nominal 18 Ohm resistance value. ±5% tolerance allows deviation up to 0.9 Ohms (17.1 to 18.9 Ohms), while ±1% tolerance restricts deviation to 0.18 Ohms (17.82 to 18.18 Ohms). ±1% substitutes provide improved circuit accuracy for precision applications but are not required for general-purpose circuits designed for ±5% tolerance.

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

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

Q: Can CRCW120618R0FKEAHP (0.75W) replace RC3216J180CS (0.25W)?

A: Yes, mechanically and electrically. CRCW120618R0FKEAHP maintains identical 18 Ohm resistance, ±1% tolerance, 1206 package, and operating temperature range. The increased 0.75W power rating provides additional thermal capability without affecting circuit function. This substitution is suitable for applications requiring higher power dissipation or enhanced thermal margin.

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

A: MSL 1 indicates the component requires no moisture precautions during storage, handling, or assembly. All listed substitutes maintain MSL 1 rating, ensuring compatibility with standard manufacturing processes without special moisture control requirements.

Q: Why is ERJ-8ENF18R0V marked "Not For New Designs"?

A: This status indicates the manufacturer has discontinued active development and recommends against selection for new product designs. While existing inventory may be available, long-term supply cannot be guaranteed. Alternative parts with "Active" status should be prioritized for new applications.

Q: Are all substitute parts available in Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Packaging formats vary by manufacturer and part number. RC3216J180CS and RC1206JR-0718RL are available in Cut Tape and Digi-Reel formats. Most upgrade substitutes are supplied in Tape & Reel format. Verify packaging availability with your supplier before finalizing component selection.

Q: Do all substitutes maintain the same physical dimensions?

A: All substitutes use the 1206 (3216 Metric) package with identical length (0.122" to 0.126") and width (0.063") specifications. Height variations range from 0.024" to 0.030" maximum seated height. These minor dimensional differences do not affect PCB layout compatibility or assembly processes.

Q: What is the temperature coefficient specification, and why does it matter?

A: Temperature coefficient ±100ppm/°C specifies the maximum resistance change per degree Celsius across the operating temperature range. All listed parts maintain identical ±100ppm/°C specification, ensuring consistent thermal performance across -55°C to 155°C operating range.

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