RMCS1206FT24K3 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT24K3 is a 24.3 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

The RMCS1206FT24K3 is classified as Active product status. Substitute parts become necessary when the original part experiences supply constraints, inventory limitations, or when design requirements mandate specific certifications such as automotive AEC-Q200 qualification or alternative packaging formats.

Key Parameters

Parameter	Value
Resistance	24.3 kOhms
Tolerance	±1%
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 (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT24K3 is determined by strict equivalence across the following parameters:

Resistance value: 24.3 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W / 1/4W (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 range: -55°C ~ 155°C (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in secondary characteristics such as specific features (anti-sulfur, automotive AEC-Q200, moisture resistant), packaging format (Tape & Reel vs. Cut Tape), and compliance certifications do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	MSL	RoHS Status	Product Status
RMCS1206FT24K3	Stackpole Electronics Inc	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Active
RMCF1206FT24K3	Stackpole Electronics Inc	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Active
CR1206-FX-2432ELF	Bourns Inc.	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Active
CRCW120624K3FKEA	Vishay Dale	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Active
CRCW120624K3FKTA	Vishay Dale	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	RoHS non-compliant	Active
ERJ-8ENF2432V	Panasonic Electronic Components	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Not For New Designs
RC1206FR-0724K3L	YAGEO	24.3 kOhms	±1%	0.25	1206	Thick Film	±100	-55 ~ 155	1	ROHS3 Compliant	Active

Engineering Selection Recommendations

All substitute parts listed maintain electrical and mechanical equivalence to the RMCS1206FT24K3. Selection among substitutes should be based on the following criteria:

Active Product Status Priority: RMCF1206FT24K3 (Stackpole), CR1206-FX-2432ELF (Bourns), CRCW120624K3FKEA (Vishay Dale), and RC1206FR-0724K3L (YAGEO) are all classified as Active. The ERJ-8ENF2432V (Panasonic) carries "Not For New Designs" status and should be avoided for new applications.

RoHS3 Compliance: RMCF1206FT24K3, CR1206-FX-2432ELF, ERJ-8ENF2432V, and RC1206FR-0724K3L are RoHS3 compliant. The CRCW120624K3FKTA is RoHS non-compliant and should not be selected for applications requiring RoHS certification.

Automotive Certification: RMCF1206FT24K3, CRCW120624K3FKEA, CRCW120624K3FKTA, and ERJ-8ENF2432V carry AEC-Q200 automotive qualification. These are suitable for automotive applications where this certification is mandatory.

Packaging Format: CRCW120624K3FKEA is supplied in Cut Tape (CT) & Digi-Reel format, while all other substitutes use Tape & Reel (TR) packaging. Packaging selection depends on assembly process requirements.

Inventory Availability: Substitute selection may also consider current stock levels when supply of the primary part is constrained.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206FT24K3 directly replace RMCS1206FT24K3?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc and share identical electrical specifications (24.3 kOhms ±1%, 0.25W, 1206 package, ±100ppm/°C, -55°C to 155°C operating range, MSL 1, RoHS3 compliant). The primary difference is that RMCF1206FT24K3 includes automotive AEC-Q200 qualification, while RMCS1206FT24K3 features anti-sulfur composition. Both are Active status products.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within acceptable tolerances. The RMCS1206FT24K3 and RC1206FR-0724K3L have maximum seated heights of 0.026" (0.65mm), while RMCF1206FT24K3, CR1206-FX-2432ELF, CRCW120624K3FKEA, CRCW120624K3FKTA, and ERJ-8ENF2432V range from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard 1206 package specifications and do not affect PCB layout or assembly compatibility.

Q: Should ERJ-8ENF2432V be used in new designs?

A: No. The ERJ-8ENF2432V carries "Not For New Designs" product status. While electrically equivalent, this designation indicates the manufacturer is phasing out this part. For new applications, select from Active status alternatives: RMCF1206FT24K3, CR1206-FX-2432ELF, CRCW120624K3FKEA, or RC1206FR-0724K3L.

Q: Is CRCW120624K3FKTA suitable for RoHS-regulated applications?

A: No. CRCW120624K3FKTA is RoHS non-compliant and REACH Affected. For applications requiring RoHS3 compliance, use RMCF1206FT24K3, CR1206-FX-2432ELF, CRCW120624K3FKEA, ERJ-8ENF2432V, or RC1206FR-0724K3L instead.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: The RMCS1206FT24K3 features anti-sulfur composition, while CR1206-FX-2432ELF and RC1206FR-0724K3L feature moisture-resistant composition. Both are distinct material treatments that enhance reliability in specific environmental conditions. Selection depends on the target application environment. Both achieve MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use CRCW120624K3FKEA (Cut Tape) instead of Tape & Reel packaged parts?

A: Yes, provided your assembly process accommodates Cut Tape format. CRCW120624K3FKEA is electrically and mechanically equivalent to all Tape & Reel alternatives. Packaging format selection is determined by your manufacturing equipment and assembly workflow, not by electrical compatibility.

Q: Which substitute offers the best inventory availability?

A: ERJ-8ENF2432V has the highest reported inventory at 47,091 pieces. However, due to its "Not For New Designs" status, RC1206FR-0724K3L (30,019 pieces) or CRCW120624K3FKEA (18,995 pieces) are preferred alternatives with substantial availability and Active product status.

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