RC3225F1403CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F1403CS is a 140 kOhms ±1% 0.333W chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 1015 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter ranges for this resistor category.

Key Parameters

Parameter	Value	Specification Type
Resistance	140 kOhms	Electrical
Tolerance	±1%	Electrical
Power Rating	0.333W (1/3W)	Electrical
Package / Case	1210 (3225 Metric)	Mechanical
Composition	Thick Film	Material
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C ~ 155°C	Environmental
RoHS Status	ROHS3 Compliant	Compliance
Moisture Sensitivity Level	1 (Unlimited)	Environmental

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1403CS is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 140 kOhms
Tolerance: ±1%
Package / Case: 1210 (3225 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

Power Rating: Substitute parts may have equal or higher power ratings (0.333W or greater)
Physical dimensions: Minor variations within 1210 package specification tolerance
Certifications: Additional certifications (such as AEC-Q200) do not disqualify substitution

The identified substitute parts CRCW1210140KFKEA and ERJ-P14F1403U meet all mandatory parameters while offering higher power ratings (0.5W) and automotive-grade certifications.

Parameter Comparison

Parameter	RC3225F1403CS (Samsung)	CRCW1210140KFKEA (Vishay Dale)	ERJ-P14F1403U (Panasonic)
Resistance	140 kOhms	140 kOhms	140 kOhms
Tolerance	±1%	±1%	±1%
Power Rating	0.333W (1/3W)	0.5W (1/2W)	0.5W (1/2W)
Package / Case	1210 (3225 Metric)	1210 (3225 Metric)	1210 (3225 Metric)
Composition	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension	0.126" L x 0.100" W (3.20mm x 2.55mm)	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.126" L x 0.098" W (3.20mm x 2.50mm)
Height - Seated (Max)	0.026" (0.66mm)	0.024" (0.60mm)	0.028" (0.70mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

RC3225F1403CS (Samsung Electro-Mechanics) is the primary specification. Selection of substitute parts depends on application requirements and supply chain considerations.

CRCW1210140KFKEA (Vishay Dale) is suitable for applications requiring automotive-grade reliability. This part carries AEC-Q200 certification and provides 0.5W power rating, exceeding the original specification. Dimensions are within 1210 package tolerance. ROHS3 compliance and MSL 1 rating are maintained.

ERJ-P14F1403U (Panasonic Electronic Components) is suitable for applications requiring pulse withstanding capability in addition to automotive-grade performance. This part carries AEC-Q200 certification and provides 0.5W power rating. Dimensions are within 1210 package tolerance. ROHS3 compliance and MSL 1 rating are maintained. Maximum seated height is 0.028" (0.70mm), which is within acceptable variation for the 1210 package.

All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8533.21.0030.

Frequently Asked Questions (FAQ)

Q: Can CRCW1210140KFKEA or ERJ-P14F1403U be used as direct replacements for RC3225F1403CS?

A: Yes. Both substitute parts maintain identical resistance (140 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), package (1210), and composition (thick film). Higher power ratings (0.5W vs. 0.333W) do not prevent substitution in applications designed for the original part.

Q: What is the difference in power rating between the main part and substitutes?

A: RC3225F1403CS is rated at 0.333W (1/3W). Both CRCW1210140KFKEA and ERJ-P14F1403U are rated at 0.5W (1/2W). Higher power rating indicates greater thermal dissipation capability and does not create incompatibility.

Q: Are there dimensional differences between these parts?

A: All three parts conform to the 1210 (3225 Metric) package specification. Length is 0.126" (3.20mm) for all parts. Width varies slightly: RC3225F1403CS is 0.100" (2.55mm), while CRCW1210140KFKEA and ERJ-P14F1403U are 0.098" (2.50mm). Height varies: RC3225F1403CS is 0.026" (0.66mm), CRCW1210140KFKEA is 0.024" (0.60mm), and ERJ-P14F1403U is 0.028" (0.70mm). These variations are within 1210 package tolerance and do not affect PCB layout compatibility.

Q: What certifications do the substitute parts carry?

A: CRCW1210140KFKEA and ERJ-P14F1403U both carry AEC-Q200 automotive certification. ERJ-P14F1403U additionally features pulse withstanding capability. RC3225F1403CS does not list automotive certification but meets all electrical and environmental specifications.

Q: Are all parts RoHS3 compliant?

A: Yes. RC3225F1403CS, CRCW1210140KFKEA, and ERJ-P14F1403U are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status.

Q: What is the packaging format for each part?

A: RC3225F1403CS is supplied in standard packaging. CRCW1210140KFKEA and ERJ-P14F1403U are supplied in Tape & Reel (TR) format, which is standard for high-volume production environments.

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