RCS3216J242CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J242CS is a 2.4 kOhms ±5% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This thick film resistor features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is ROHS3 compliant with MSL 1 (Unlimited) rating and is currently in active production status with 1057 units in stock.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative performance characteristics such as improved tolerance specifications or enhanced power ratings.

Key Parameters

Parameter	Value
Resistance	2.4 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 ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216J242CS is determined by the following critical parameters:

Primary Substitution Criteria (Mandatory Match):

Resistance value: 2.4 kOhms
Package / Case: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2

Secondary Substitution Criteria (Allowable Variation):

Tolerance: ±5% (primary specification); ±1% tolerance parts are acceptable as direct substitutes with improved accuracy
Power rating: 0.25W (primary specification); 0.333W and 0.75W rated parts are acceptable for applications not requiring exact power matching
Features: Anti-sulfur and moisture-resistant properties are desirable but not mandatory for all applications; automotive AEC-Q200 certification is an enhancement, not a requirement

Compliance Requirements:

ROHS3 compliance required
MSL 1 (Unlimited) preferred; other MSL ratings acceptable depending on application environment
REACH Unaffected status maintained across all substitutes

Substitute parts are grouped into three categories based on tolerance and power rating specifications, with all parts maintaining the core 2.4 kOhms resistance, 1206 package format, and thick film composition.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Composition	Temp Coeff	Operating Temp	Package	Size (mm)	Height Max (mm)	RoHS Status	MSL	Product Status	Inventory
RCS3216J242CS	Samsung Electro-Mechanics	2.4 kOhms	±5%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.20 x 1.60	0.66	ROHS3	1	Active	1057
RC3216J242CS	Samsung Electro-Mechanics	2.4 kOhms	±5%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.20 x 1.60	0.65	ROHS3	1	Active	992
RC1206JR-072K4L	YAGEO	2.4 kOhms	±5%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.60	0.65	ROHS3	1	Active	153605
RPC1206JT2K40	Stackpole Electronics Inc	2.4 kOhms	±5%	0.333W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.55	0.65	ROHS3	1	Active	10771
AC1206JR-072K4L	YAGEO	2.4 kOhms	±5%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.60	0.65	ROHS3	1	Active	25765
RC1206FR-072K4L	YAGEO	2.4 kOhms	±1%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.60	0.65	ROHS3	1	Active	174062
AC1206FR-072K4L	YAGEO	2.4 kOhms	±1%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.60	0.65	ROHS3	1	Active	9890
CR1206-FX-2401ELF	Bourns Inc.	2.4 kOhms	±1%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.20 x 1.60	0.75	ROHS3	1	Active	35281
CRCW12062K40FKEA	Vishay Dale	2.4 kOhms	±1%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.20 x 1.60	0.60	ROHS3	1	Active	48510
CRCW12062K40FKEAHP	Vishay Dale	2.4 kOhms	±1%	0.75W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.10 x 1.60	0.65	ROHS3	1	Active	13807
ERJ-8ENF2401V	Panasonic Electronic Components	2.4 kOhms	±1%	0.25W	Thick Film	±100ppm/°C	-55°C ~ 155°C	1206	3.20 x 1.60	0.70	ROHS3	1	Not For New Designs	47531

Engineering Selection Recommendations

Direct Equivalents (±5% Tolerance, 0.25W Rating):

RC3216J242CS (Samsung Electro-Mechanics) and RC1206JR-072K4L (YAGEO) are direct functional equivalents to RCS3216J242CS. Both maintain identical resistance, tolerance, power rating, and operating temperature specifications. RC3216J242CS differs only in packaging format (Cut Tape & Digi-Reel® versus standard packaging) and represents the same product line from the original manufacturer. RC1206JR-072K4L provides equivalent performance from an alternative manufacturer with significantly higher inventory availability (153,605 units).

Enhanced Tolerance Substitutes (±1% Tolerance, 0.25W Rating):

RC1206FR-072K4L, AC1206FR-072K4L, CR1206-FX-2401ELF, CRCW12062K40FKEA, and ERJ-8ENF2401V all provide improved tolerance specifications (±1%) while maintaining the 0.25W power rating and 1206 package format. These parts are suitable for applications requiring tighter resistance accuracy. RC1206FR-072K4L offers the highest inventory level (174,062 units) among ±1% tolerance options. AC1206FR-072K4L and AC1206JR-072K4L include automotive AEC-Q200 certification, appropriate for automotive applications. ERJ-8ENF2401V carries "Not For New Designs" status and should be avoided for new product development.

Enhanced Power Rating Substitute (±1% Tolerance, 0.75W Rating):

CRCW12062K40FKEAHP provides increased power dissipation capability (0.75W versus 0.25W) with ±1% tolerance and automotive AEC-Q200 certification. This part is suitable for applications requiring higher pulse withstanding capability or thermal margin.

Higher Power Rating Substitute (±5% Tolerance, 0.333W Rating):

RPC1206JT2K40 (Stackpole Electronics Inc) provides intermediate power rating (0.333W) with ±5% tolerance and automotive AEC-Q200 certification. This part is appropriate for applications requiring enhanced power handling without the full 0.75W rating of the CRCW12062K40FKEAHP.

Selection Criteria:

For direct replacement with no design changes: RC3216J242CS or RC1206JR-072K4L
For improved accuracy requirements: RC1206FR-072K4L (highest availability) or CRCW12062K40FKEA
For automotive applications: AC1206FR-072K4L, AC1206JR-072K4L, CRCW12062K40FKEA, CRCW12062K40FKEAHP, or RPC1206JT2K40
For enhanced thermal performance: CRCW12062K40FKEAHP (0.75W) or RPC1206JT2K40 (0.333W)

All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C to 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RC1206JR-072K4L be used as a direct replacement for RCS3216J242CS?

A: Yes. RC1206JR-072K4L is a direct functional equivalent. Both parts specify 2.4 kOhms ±5% resistance, 0.25W power rating, 1206 package format, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. The primary difference is manufacturer (YAGEO versus Samsung Electro-Mechanics). RC1206JR-072K4L has significantly higher inventory availability (153,605 units).

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

A: Tolerance specifies the allowable deviation from the nominal resistance value. A ±5% tolerance part can vary by up to 5% from 2.4 kOhms (range: 2.28 kOhms to 2.52 kOhms). A ±1% tolerance part can vary by up to 1% (range: 2.376 kOhms to 2.424 kOhms). Applications requiring precise resistance values should specify ±1% tolerance parts such as RC1206FR-072K4L or CRCW12062K40FKEA.

Q: Can I use CRCW12062K40FKEAHP (0.75W) in place of RCS3216J242CS (0.25W)?

A: Yes, from a functional standpoint. CRCW12062K40FKEAHP maintains the same 2.4 kOhms resistance, 1206 package, and operating temperature range. The higher power rating (0.75W versus 0.25W) provides additional thermal margin and pulse withstanding capability. However, verify that the application circuit design accommodates the slightly different physical dimensions (height: 0.65mm versus 0.66mm) and that the enhanced power rating does not introduce unintended circuit behavior.

Q: Are automotive-rated parts (AEC-Q200) required for non-automotive applications?

A: No. Automotive AEC-Q200 certification is not required for non-automotive applications. Parts such as AC1206FR-072K4L, AC1206JR-072K4L, CRCW12062K40FKEA, CRCW12062K40FKEAHP, ERJ-8ENF2401V, and RPC1206JT2K40 include this certification as an enhancement. Non-automotive applications can use any substitute meeting the core electrical and mechanical parameters.

Q: What does "Not For New Designs" status mean for ERJ-8ENF2401V?

A: "Not For New Designs" indicates that the manufacturer (Panasonic Electronic Components) is not recommending this part for new product development. While ERJ-8ENF2401V remains functionally equivalent and is in stock, alternative parts such as RC1206FR-072K4L or CRCW12062K40FKEA should be prioritized for new designs to ensure long-term supply continuity.

Q: How do package dimensions affect substitution?

A: All substitute parts use the 1206 (3216 Metric) package format with identical footprint dimensions (approximately 3.2mm length × 1.6mm width). Minor variations in height (0.60mm to 0.75mm maximum) do not affect PCB layout or soldering. Verify height clearance in applications with space constraints, particularly for CRCW12062K40FKEAHP (0.75mm) if the original design specified RCS3216J242CS (0.66mm).

Q: What is MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations. The part can be stored indefinitely without special moisture control measures and does not require baking before soldering. All recommended substitutes maintain MSL 1 rating, ensuring compatibility with standard manufacturing processes.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All substitute parts meet identical electrical specifications (2.4 kOhms, ±5% or ±1% tolerance, 0.25W or higher, 1206 package, -55°C to 155°C operating range) and ROHS3 compliance. Mixing manufacturers (Samsung Electro-Mechanics, YAGEO, Bourns, Vishay Dale, Stackpole, Panasonic) is acceptable from an electrical and mechanical standpoint. Verify that procurement and quality assurance processes accommodate multiple suppliers if required.

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