RCS3216J200CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J200CS is a 20 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 anti-sulfur and moisture-resistant construction. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range. Alternative sources provide equivalent 20 Ohm resistance values with compatible 1206 package dimensions and thermal operating ranges, enabling supply chain flexibility and design continuity.

Key Parameters

Parameter	Value	Unit
Resistance	20	Ohms
Tolerance	±5%	-
Power Rating	0.25W (1/4W)	Watts
Package / Case	1206 (3216 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55°C to 155°C	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 20 Ohms (exact match required)
Package format: 1206 (3216 Metric) (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Tolerance: ±5% or tighter (±1% acceptable as superior specification)
Temperature coefficient: ±100ppm/°C (exact match)
Operating temperature range: -55°C to 155°C minimum (exact match required)
Composition: Thick Film (exact match required)
RoHS compliance: ROHS3 Compliant (required for direct substitution)
Moisture sensitivity: MSL 1 (required)

Substitute parts are grouped into two categories:

Category A - Direct Equivalents (±5% Tolerance, 0.25W): Parts matching all primary criteria with identical tolerance specification. These provide direct replacement capability without circuit re-evaluation.

Category B - Enhanced Specification Substitutes (±1% Tolerance, 0.25W or Higher Power): Parts exceeding the original specification with tighter tolerance (±1%) or higher power rating (0.5W, 0.75W). These provide superior performance characteristics while maintaining full mechanical and thermal compatibility. Enhanced tolerance reduces circuit tolerance stack-up; higher power rating increases thermal margin.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp (°C)	RoHS	MSL	Product Status
RCS3216J200CS	Samsung Electro-Mechanics	20Ω	±5%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
AC1206JR-0720RL	YAGEO	20Ω	±5%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
RC1206JR-0720RL	YAGEO	20Ω	±5%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
AC1206FR-0720RL	YAGEO	20Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CR1206-FX-20R0ELF	Bourns Inc.	20Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CRCW120620R0FKEA	Vishay Dale	20Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CRCW120620R0FKEAHP	Vishay Dale	20Ω	±1%	0.75	1206	±100	-55 to 155	ROHS3	1	Active
CRCW120620R0FKTA	Vishay Dale	20Ω	±1%	0.25	1206	±100	-55 to 155	RoHS NC	1	Active
ERJ-8ENF20R0V	Panasonic Electronic Components	20Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Not For New Designs
ESR18EZPF20R0	Rohm Semiconductor	20Ω	±1%	0.5	1206	±100	-55 to 155	ROHS3	1	Active
RC1206FR-0720RL	YAGEO	20Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active

Engineering Selection Recommendations

Recommended Direct Substitutes (Category A - ±5% Tolerance, 0.25W):

AC1206JR-0720RL and RC1206JR-0720RL from YAGEO provide direct electrical and mechanical equivalence to RCS3216J200CS. Both parts maintain ±5% tolerance specification, 0.25W power rating, and ROHS3 compliance. These substitutes are suitable for applications where the original ±5% tolerance specification is acceptable and no enhanced performance is required.

Recommended Enhanced Specification Substitutes (Category B - ±1% Tolerance or Higher Power):

AC1206FR-0720RL, RC1206FR-0720RL, CR1206-FX-20R0ELF, CRCW120620R0FKEA, and ESR18EZPF20R0 provide superior specifications with ±1% tolerance. These parts reduce tolerance stack-up in precision circuits. ESR18EZPF20R0 and CRCW120620R0FKEAHP additionally provide 0.5W and 0.75W power ratings respectively, increasing thermal margin in power-dissipation-sensitive applications. All Category B parts maintain ROHS3 compliance and MSL 1 rating.

Parts Requiring Compliance Verification:

CRCW120620R0FKTA is RoHS non-compliant and REACH affected. This part is not recommended for new designs or applications requiring RoHS3 compliance.

ERJ-8ENF20R0V carries "Not For New Designs" product status from Panasonic. While electrically and mechanically compatible, this part should not be selected for new circuit designs due to manufacturer discontinuation trajectory.

Frequently Asked Questions (FAQ)

Q: Can I substitute RCS3216J200CS with a ±1% tolerance part?

A: Yes. Parts with ±1% tolerance (AC1206FR-0720RL, RC1206FR-0720RL, CR1206-FX-20R0ELF, CRCW120620R0FKEA, ESR18EZPF20R0) are electrically compatible. The tighter tolerance represents an enhanced specification that reduces circuit tolerance stack-up. No circuit re-evaluation is required; the ±1% part will perform within the original design margin.

Q: What is the difference between 0.25W, 0.5W, and 0.75W power ratings in the same package?

A: Power rating indicates maximum continuous power dissipation capability. A 0.5W or 0.75W rated part in 1206 package can dissipate more heat than a 0.25W part without exceeding temperature limits. Substituting a higher power-rated part (ESR18EZPF20R0 at 0.5W or CRCW120620R0FKEAHP at 0.75W) increases thermal margin and is mechanically compatible. The original 0.25W specification remains valid; higher-rated parts simply provide additional thermal headroom.

Q: Are all substitute parts ROHS3 compliant?

A: No. CRCW120620R0FKTA is RoHS non-compliant. All other listed substitutes are ROHS3 compliant. For applications requiring RoHS3 compliance, exclude CRCW120620R0FKTA from selection.

Q: Can I use ERJ-8ENF20R0V as a substitute?

A: ERJ-8ENF20R0V meets all electrical and mechanical specifications. However, Panasonic designates this part as "Not For New Designs," indicating manufacturer discontinuation planning. This part is suitable only for legacy design maintenance or repair applications. For new designs, select from active-status alternatives.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All listed parts use 1206 (3216 Metric) package format with identical land pattern requirements. Physical dimensions vary slightly (length 3.10mm to 3.20mm, height 0.60mm to 0.75mm), but these variations remain within standard 1206 PCB footprint tolerances. No PCB redesign is required for any substitute.

Q: What is MSL 1 and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, meaning they can be stored and handled using standard warehouse conditions without special moisture-control procedures. This specification is maintained across all substitutes.

Q: Which substitute offers the best value for precision applications?

A: RC1206FR-0720RL and AC1206FR-0720RL provide ±1% tolerance with 0.25W rating at lower cost than higher-power alternatives. For applications requiring both precision and thermal margin, ESR18EZPF20R0 combines ±1% tolerance with 0.5W rating. Selection depends on specific circuit requirements for tolerance and power dissipation.

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