Equivalent & Substitute Parts for RC3216J185CS

Part Overview

The RC3216J185CS is a 1.8 MOhms ±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 ROHS3 compliance. The part is suitable for general-purpose applications requiring high-value resistive elements in compact surface-mount form factors.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package dimensions, termination count), and environmental ratings (operating temperature range, moisture sensitivity level). Substitutes are categorized by tolerance grade and feature enhancements such as automotive qualification or high-voltage capability.

Key Parameters

Parameter	Specification
Resistance Value	1.8 MOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to +155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC3216J185CS are classified into three categories based on functional equivalence and feature enhancement:

Direct Equivalents (±5% Tolerance, Standard Features): Parts maintaining the original ±5% tolerance specification with standard moisture-resistant thick film construction. These include KTR18EZPJ185, RC1206JR-071M8L, and MCR18ERTJ185. These parts are electrically and mechanically interchangeable with the main part.

Upgraded Equivalents (±1% Tolerance, Enhanced Features): Parts offering improved tolerance (±1%) with automotive AEC-Q200 qualification or high-voltage capability. These include AC1206FR-071M8L, ERJ-8ENF1804V, KTR18EZPF1804, RC1206FR-071M8L, RMCF1206FT1M80, and CRCW12061M80FKEA. These parts provide tighter tolerance performance while maintaining package and thermal compatibility.

Automotive-Qualified Variants (±5% Tolerance, AEC-Q200): Parts with ±5% tolerance and automotive AEC-Q200 qualification, including RMCF1206JG1M80. These maintain the original tolerance while adding automotive reliability standards.

Substitution Criteria:

Resistance value: 1.8 MOhms (exact match required)
Package: 1206 (3216 Metric) with 2 terminations
Power rating: 0.25W minimum
Operating temperature: -55°C to +155°C minimum
MSL rating: 1 (Unlimited) or equivalent
RoHS3 compliance required

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Features	Product Status	Packaging
RC3216J185CS	Samsung Electro-Mechanics	1.8 MOhms	±5%	0.25	±100	Moisture Resistant	Active	Tape & Reel
RC1206JR-071M8L	YAGEO	1.8 MOhms	±5%	0.25	±100	Moisture Resistant	Active	Tape & Reel
KTR18EZPJ185	Rohm Semiconductor	1.8 MOhms	±5%	0.25	±200	Automotive AEC-Q200, High Voltage	Active	Tape & Reel
MCR18ERTJ185	Rohm Semiconductor	1.8 MOhms	±5%	0.25	±200	Standard	Discontinued at DiGi Electronics	Cut Tape & Digi-Reel
RMCF1206JG1M80	Stackpole Electronics Inc	1.8 MOhms	±5%	0.25	±200	Automotive AEC-Q200	Active	Cut Tape
AC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	±100	Automotive AEC-Q200, Moisture Resistant	Active	Tape & Reel
ERJ-8ENF1804V	Panasonic Electronic Components	1.8 MOhms	±1%	0.25	±100	Automotive AEC-Q200	Not For New Designs	Tape & Reel
KTR18EZPF1804	Rohm Semiconductor	1.8 MOhms	±1%	0.25	±100	Automotive AEC-Q200, High Voltage	Active	Tape & Reel
RC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	±100	Moisture Resistant	Active	Tape & Reel
RMCF1206FT1M80	Stackpole Electronics Inc	1.8 MOhms	±1%	0.25	±200	Automotive AEC-Q200	Active	Tape & Reel
CRCW12061M80FKEA	Vishay Dale	1.8 MOhms	±1%	0.25	±100	Automotive AEC-Q200	Active	Tape & Reel

Engineering Selection Recommendations

For Direct Replacement (Same Tolerance, Standard Applications): RC1206JR-071M8L (YAGEO) is the primary direct equivalent, offering identical electrical specifications with Active product status and high inventory availability (2291 pcs). KTR18EZPJ185 (Rohm Semiconductor) provides equivalent performance with automotive AEC-Q200 qualification and high-voltage capability, suitable for automotive or harsh-environment applications.

For Tolerance Upgrade (±1% Tolerance): RC1206FR-071M8L (YAGEO) is recommended for applications requiring improved tolerance with moisture-resistant characteristics and Active status. CRCW12061M80FKEA (Vishay Dale) and KTR18EZPF1804 (Rohm Semiconductor) provide ±1% tolerance with automotive AEC-Q200 qualification for automotive-grade applications.

For Automotive Applications: AC1206FR-071M8L (YAGEO), KTR18EZPF1804 (Rohm Semiconductor), RMCF1206FT1M80 (Stackpole Electronics Inc), and CRCW12061M80FKEA (Vishay Dale) all carry AEC-Q200 automotive qualification with ±1% tolerance and Active product status.

Parts to Avoid for New Designs: ERJ-8ENF1804V (Panasonic Electronic Components) carries "Not For New Designs" status. MCR18ERTJ185 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new applications.

Packaging Considerations: Most substitutes are available in Tape & Reel (TR) packaging. RMCF1206JG1M80 is supplied in Cut Tape (CT) format. MCR18ERTJ185 uses Cut Tape & Digi-Reel packaging. Verify packaging requirements for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can RC1206JR-071M8L replace RC3216J185CS directly? A: Yes. RC1206JR-071M8L matches all critical parameters: 1.8 MOhms resistance, ±5% tolerance, 0.25W power rating, 1206 package, -55°C to +155°C operating range, and ROHS3 compliance. Both use thick film composition with moisture-resistant characteristics.

Q: What is the difference between ±5% and ±1% tolerance parts? A: Tolerance specifies the maximum deviation from the nominal resistance value. ±5% parts allow up to 1.71 to 1.89 MOhms variation; ±1% parts allow 1.782 to 1.818 MOhms variation. ±1% parts provide tighter performance for precision applications but typically cost more.

Q: Are automotive AEC-Q200 parts suitable for non-automotive applications? A: Yes. AEC-Q200 qualification indicates automotive-grade reliability testing and is a superset of standard requirements. These parts are suitable for any application requiring the specified electrical and mechanical parameters.

Q: What does "Not For New Designs" mean for ERJ-8ENF1804V? A: This status indicates the manufacturer has discontinued active development and recommends against using this part in new product designs. Existing inventory may be available, but long-term supply is not guaranteed.

Q: Does package size affect substitutability? A: All listed substitutes use the 1206 (3216 Metric) package with identical footprint dimensions (0.126" L x 0.063" W or 3.20mm x 1.60mm). Height variations (0.024" to 0.028") are within standard PCB assembly tolerances and do not affect substitutability.

Q: Can I use CRCW12061M80FKEA in place of RC3216J185CS? A: Yes, with the following considerations: CRCW12061M80FKEA offers ±1% tolerance (tighter than the original ±5%), automotive AEC-Q200 qualification, and identical package compatibility. It is a functional upgrade suitable for the same mechanical and thermal environment.

Q: What is the significance of temperature coefficient (ppm/°C)? A: Temperature coefficient indicates resistance change per degree Celsius. RC3216J185CS and most ±1% substitutes specify ±100 ppm/°C, while some ±5% alternatives specify ±200 ppm/°C. Lower values indicate better stability across temperature extremes. Both are acceptable for standard applications within the -55°C to +155°C range.

Q: Are all listed parts ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 Compliant status, meeting lead-free and hazardous substance restrictions for EU and global markets.

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