RC5025J104CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025J104CS is a 100 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications (resistance value and tolerance), mechanical compatibility (package dimensions), thermal characteristics, and regulatory compliance. Alternative components become necessary when addressing design upgrades for enhanced precision, increased power handling, or automotive-grade reliability requirements.

Key Parameters

Parameter	Value	Unit
Resistance	100	kOhms
Tolerance	±5%	—
Power Rating	0.667	W
Package / Case	2010 (5025 Metric)	—
Composition	Thick Film	—
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Moisture Sensitivity Level	1 (Unlimited)	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the RC5025J104CS is determined by the following critical parameters:

Electrical Compatibility: All substitute parts maintain the 100 kOhms resistance value. Tolerance variations (±5% vs. ±1%) are acceptable in substitution; tighter tolerance parts (±1%) represent functional upgrades. Temperature coefficient remains constant at ±100ppm/°C across all alternatives.

Mechanical Compatibility: All substitute parts use the identical 2010 (5025 Metric) package with matching footprint dimensions (0.197" L × 0.098" W / 5.00mm × 2.50mm). Height variations (0.026" to 0.028" seated maximum) remain within acceptable PCB assembly tolerances.

Thermal Performance: The original part is rated at 0.667W. Substitute parts rated at 0.75W (3/4W) provide increased power dissipation capability while maintaining the same package footprint, representing a direct upgrade path.

Regulatory Compliance: All parts maintain RoHS3 compliance, MSL 1 rating, and REACH unaffected status. Automotive-grade substitutes include AEC-Q200 certification, applicable for automotive and high-reliability applications.

Composition: All parts are thick film resistors, ensuring consistent electrical behavior and manufacturing process compatibility.

Parameter Comparison

Parameter	RC5025J104CS (Main)	AC2010FK-07100KL	RC2010FK-07100KL	RC2010JK-07100KL	CRCW2010100KFKEF	ERJ-12SF1003U	RMCF2010FT100K
Manufacturer	Samsung Electro-Mechanics	YAGEO	YAGEO	YAGEO	Vishay Dale	Panasonic Electronic Components	Stackpole Electronics Inc
Resistance	100 kOhms	100 kOhms	100 kOhms	100 kOhms	100 kOhms	100 kOhms	100 kOhms
Tolerance	±5%	±1%	±1%	±5%	±1%	±1%	±1%
Power Rating	0.667W	0.75W	0.75W	0.75W	0.75W	0.75W	0.75W
Package	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)	2010 (5025 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C
Operating Temperature	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	—	AEC-Q200	—	—	AEC-Q200	AEC-Q200	AEC-Q200
Product Status	Active	Active	Active	Active	Active	Not For New Designs	Active

Engineering Selection Recommendations

Direct Substitution (Same Tolerance): RC2010JK-07100KL maintains the ±5% tolerance specification of the original RC5025J104CS while providing increased power rating (0.75W vs. 0.667W) and identical package compatibility. This part is suitable for direct replacement in existing designs without circuit re-qualification.

Precision Upgrade Path: AC2010FK-07100KL, CRCW2010100KFKEF, ERJ-12SF1003U, and RMCF2010FT100K all offer ±1% tolerance with 0.75W power rating. These parts are applicable when design requirements demand tighter resistance tolerance or enhanced thermal performance. AC2010FK-07100KL, CRCW2010100KFKEF, and RMCF2010FT100K include AEC-Q200 automotive certification, suitable for automotive and high-reliability applications.

Standard Upgrade (Non-Automotive): RC2010FK-07100KL provides ±1% tolerance and 0.75W rating without automotive certification, applicable for general industrial and consumer applications requiring improved precision.

Obsolescence Consideration: ERJ-12SF1003U carries "Not For New Designs" status. While functionally equivalent and currently in stock, this part should not be selected for new product development. Existing designs using this part may continue with current inventory; however, migration to active-status alternatives is recommended for long-term supply chain stability.

Compliance Verification: All substitute parts maintain full RoHS3 compliance and MSL 1 rating. No additional compliance documentation is required for substitution within the same regulatory framework.

Frequently Asked Questions (FAQ)

Q: Can RC2010JK-07100KL directly replace RC5025J104CS without circuit modification?

A: Yes. RC2010JK-07100KL maintains identical electrical specifications (100 kOhms ±5%), operates across the same temperature range (-55 to 155°C), and uses the same 2010 package footprint. The increased power rating (0.75W vs. 0.667W) provides additional thermal margin without affecting circuit operation.

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

A: Tolerance defines the maximum deviation from the nominal 100 kOhm value. ±5% tolerance allows 95–105 kOhms; ±1% tolerance allows 99–101 kOhms. Applications requiring precise resistance values (precision analog circuits, measurement instrumentation) benefit from ±1% parts. General-purpose applications typically accept ±5% tolerance.

Q: Are automotive-grade parts (AEC-Q200) compatible with non-automotive applications?

A: Yes. AEC-Q200 certification indicates enhanced reliability testing and stricter manufacturing controls. These parts are fully compatible with non-automotive applications and provide superior quality assurance. No design changes are required.

Q: Why is ERJ-12SF1003U marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends against use in new product designs. Existing inventory remains available and functional; however, long-term supply cannot be guaranteed. New designs should select from active-status alternatives: CRCW2010100KFKEF, RMCF2010FT100K, or RC2010FK-07100KL.

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

A: Yes. All parts use the 2010 (5025 Metric) package with identical footprint dimensions (0.197" L × 0.098" W / 5.00mm × 2.50mm). Seated height variations (0.026–0.028" maximum) are within standard PCB assembly tolerances and do not affect placement or soldering.

Q: Which substitute offers the best balance of cost, availability, and performance?

A: RMCF2010FT100K (Stackpole Electronics Inc) combines active product status, AEC-Q200 automotive certification, ±1% tolerance, 0.75W power rating, and high inventory availability (51,452 units). RC2010FK-07100KL (YAGEO) provides equivalent electrical performance with the largest inventory (15,882 units) at standard industrial grade.

Q: Can I use a 0.75W part in a circuit designed for 0.667W?

A: Yes. The 0.75W rating indicates increased power dissipation capability. A higher-rated part operates safely in circuits designed for lower power ratings. No circuit modification is required.

Q: Are all parts REACH compliant?

A: Yes. All listed parts carry REACH Unaffected status, indicating full compliance with REACH regulations. No additional environmental documentation is required.

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