RCS3216J302CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J302CS is a 3 kOhms ±5% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This thick film resistor features anti-sulfur and moisture-resistant construction, with an operating temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing improves supply chain resilience, or when design requirements permit tighter tolerance specifications or enhanced automotive qualification ratings.

Key Parameters

Parameter	Value
Resistance	3 kOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216J302CS is determined by the following critical parameters:

Primary Substitution Criteria:

Resistance value: 3 kOhms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C minimum
RoHS3 compliance
MSL Level 1

Secondary Substitution Criteria:

Tolerance: ±5% (tighter tolerances such as ±1% are acceptable substitutes)
Automotive qualification (AEC-Q200) is optional but does not prevent substitution

Substitute parts are grouped into two categories: direct equivalents matching ±5% tolerance, and higher-precision alternatives with ±1% tolerance that provide improved circuit performance while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	Features	Product Status	RoHS	MSL
Samsung Electro-Mechanics	RCS3216J302CS	3 kOhms	±5%	0.25	1206	±100ppm/°C	-55 to 155	Anti-Sulfur, Moisture Resistant	Active	ROHS3	1
YAGEO	AC1206FR-073KL	3 kOhms	±1%	0.25	1206	±100ppm/°C	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3	1
YAGEO	AC1206JR-073KL	3 kOhms	±5%	0.25	1206	±100ppm/°C	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3	1
Bourns Inc.	CR1206-FX-3001ELF	3 kOhms	±1%	0.25	1206	±100ppm/°C	-55 to 155	Moisture Resistant	Active	ROHS3	1
Vishay Dale	CRCW12063K00FKEA	3 kOhms	±1%	0.25	1206	±100ppm/°C	-55 to 155	Automotive AEC-Q200	Active	ROHS3	1
Vishay Dale	CRCW12063K00FKEAHP	3 kOhms	±1%	0.75	1206	±100ppm/°C	-55 to 155	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3	1
Panasonic Electronic Components	ERJ-8ENF3001V	3 kOhms	±1%	0.25	1206	±100ppm/°C	-55 to 155	Automotive AEC-Q200	Not For New Designs	ROHS3	1
YAGEO	RC1206FR-073KL	3 kOhms	±1%	0.25	1206	±100ppm/°C	-55 to 155	Moisture Resistant	Active	ROHS3	1
YAGEO	RC1206JR-073KL	3 kOhms	±5%	0.25	1206	±100ppm/°C	-55 to 155	Moisture Resistant	Active	ROHS3	1

Engineering Selection Recommendations

Direct Tolerance Match (±5%): AC1206JR-073KL and RC1206JR-073KL provide electrical and mechanical equivalence to the RCS3216J302CS with identical tolerance specifications. Both parts are Active status, ROHS3 compliant, and carry MSL Level 1 ratings. AC1206JR-073KL includes automotive AEC-Q200 qualification; RC1206JR-073KL does not.

Higher Precision Alternatives (±1%): AC1206FR-073KL, CR1206-FX-3001ELF, CRCW12063K00FKEA, RC1206FR-073KL, and ERJ-8ENF3001V all provide ±1% tolerance with identical 0.25W power rating and package specifications. These parts are suitable for applications requiring tighter resistance tolerances. AC1206FR-073KL, CRCW12063K00FKEA, and ERJ-8ENF3001V carry AEC-Q200 automotive qualification. All are Active status except ERJ-8ENF3001V, which is marked Not For New Designs.

Enhanced Power Rating: CRCW12063K00FKEAHP provides 0.75W power rating in the same 1206 package with ±1% tolerance and AEC-Q200 qualification. This part is suitable for applications requiring higher power dissipation capability while maintaining the same footprint and resistance value.

Product Status Consideration: ERJ-8ENF3001V carries Not For New Designs status and should be avoided for new circuit designs, though it remains available for legacy system support.

Frequently Asked Questions (FAQ)

Q: Can I substitute a ±1% tolerance part for the ±5% RCS3216J302CS?

A: Yes. Tighter tolerance specifications are electrically and mechanically compatible. A ±1% part will perform within the ±5% specification window while providing superior accuracy. No circuit redesign is required.

Q: Are all substitute parts mechanically compatible with the 1206 package footprint?

A: Yes. All listed substitutes use the 1206 (3216 Metric) package. Physical dimensions vary slightly (length 3.10mm to 3.20mm, height 0.60mm to 0.75mm), but all parts fit standard 1206 PCB pads without modification.

Q: What is the difference between AC1206JR-073KL and RC1206JR-073KL?

A: Both parts have identical electrical specifications (3 kOhms, ±5%, 0.25W, 1206 package). AC1206JR-073KL includes automotive AEC-Q200 qualification; RC1206JR-073KL does not. Selection depends on application requirements.

Q: Can I use CRCW12063K00FKEAHP as a direct substitute?

A: CRCW12063K00FKEAHP is electrically compatible but provides 0.75W power rating instead of 0.25W. Use this part only if your circuit design permits higher power dissipation or requires enhanced pulse withstanding capability. The higher power rating does not create compatibility issues.

Q: Why is ERJ-8ENF3001V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new circuit designs. The part remains available for existing production and legacy system support but should not be selected for new projects.

Q: Do all substitute parts meet RoHS3 and MSL Level 1 requirements?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original RCS3216J302CS specifications.

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