RC5025F4420CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4420CS is a 442 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) continuous power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with full RoHS3 compliance and MSL 1 rating.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, and power rating), mechanical compatibility (package dimensions and termination count), and environmental performance characteristics (temperature coefficient, operating temperature range, and moisture resistance). Substitute parts with higher power ratings or automotive-grade certifications provide enhanced reliability margins for demanding applications.

Substiute Parts

RC5025F4420CS

Samsung Electro-MechanicsIn Stock: 767RC5025F4420CS Datasheet

Current PartRFQ

AC2010FK-07442RL

YAGEOIn Stock: 9835AC2010FK-07442RL Datasheet

UpgradeRFQ

CRCW2010442RFKEF

Vishay DaleIn Stock: 8831CRCW2010442RFKEF Datasheet

SimilarRFQ

ERJ-12SF4420U

Panasonic Electronic ComponentsIn Stock: 5959ERJ-12SF4420U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance Value: 442 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2010 (5025 Metric) (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)
• Number of Terminations: 2 (exact match required)
• Composition: Thick Film (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.75W acceptable as upgrade)
• Moisture Resistance: Substitute parts must maintain moisture-resistant construction
• Certifications: Substitute parts may include additional certifications (AEC-Q200) without affecting base compatibility

All three substitute parts meet these criteria with identical electrical and mechanical specifications to the main part, with power ratings upgraded to 0.75W (3/4W) and automotive-grade AEC-Q200 certification where applicable.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended for New Designs): AC2010FK-07442RL (YAGEO) is the preferred substitute for the RC5025F4420CS. This part maintains identical electrical and mechanical specifications while providing a 0.083W power rating increase (0.75W vs. 0.667W). The component carries Active product status, full RoHS3 compliance, MSL 1 rating, and AEC-Q200 automotive qualification. The higher power rating provides additional thermal margin without affecting circuit performance.

Secondary Substitute (Active Status): CRCW2010442RFKEF (Vishay Dale) is an alternative substitute with Active product status. This part matches all electrical and mechanical parameters with identical 0.75W power rating and AEC-Q200 certification. Maximum seated height is 0.028" (0.70mm) compared to 0.026" (0.66mm) for the main part, which remains within typical PCB assembly tolerances for 2010 package components.

Legacy Substitute (Not Recommended for New Designs): ERJ-12SF4420U (Panasonic) carries "Not For New Designs" product status and should not be selected for new circuit development. While electrically and mechanically compatible with identical 0.75W power rating and AEC-Q200 certification, the obsolescence trajectory makes this part unsuitable for long-term production applications.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-07442RL replace RC5025F4420CS in existing designs? A: Yes. AC2010FK-07442RL is a direct substitute with identical resistance (442 Ohms), tolerance (±1%), package (2010), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The 0.083W power rating increase (0.75W vs. 0.667W) provides enhanced thermal performance without affecting circuit operation.

Q: What is the significance of the 0.75W power rating on substitute parts? A: The substitute parts are rated for 0.75W (3/4W) continuous power dissipation compared to the main part's 0.667W (2/3W) rating. This represents a 12.4% increase in power handling capacity. For circuits operating at or near the original 0.667W specification, the higher-rated substitutes provide additional thermal margin and improved reliability.

Q: Are all substitute parts suitable for automotive applications? A: AC2010FK-07442RL, CRCW2010442RFKEF, and ERJ-12SF4420U all carry AEC-Q200 automotive qualification. The main part (RC5025F4420CS) does not specify AEC-Q200 certification. For automotive applications requiring AEC-Q200 compliance, any of the three substitute parts are acceptable; however, AC2010FK-07442RL and CRCW2010442RFKEF are preferred due to Active product status.

Q: What is the difference between the main part and substitutes regarding moisture resistance? A: The main part RC5025F4420CS explicitly specifies moisture-resistant construction. AC2010FK-07442RL also explicitly specifies moisture resistance. CRCW2010442RFKEF and ERJ-12SF4420U do not include moisture resistance in their detailed specifications. For applications requiring moisture-resistant thick film construction, AC2010FK-07442RL is the optimal substitute.

Q: Can CRCW2010442RFKEF be used if the maximum seated height is critical? A: CRCW2010442RFKEF has a maximum seated height of 0.028" (0.70mm) compared to RC5025F4420CS at 0.026" (0.66mm). This 0.002" (0.04mm) difference is within standard PCB assembly tolerances for 2010 package components. Verification with specific PCB design constraints is necessary only if height tolerance is specified below ±0.005" (0.127mm).

Q: Why is ERJ-12SF4420U marked "Not For New Designs"? A: ERJ-12SF4420U carries "Not For New Designs" product status, indicating that the manufacturer (Panasonic) is transitioning this part toward obsolescence. While currently in inventory and functionally compatible, this designation signals that long-term availability and production support are not guaranteed. New circuit designs should utilize AC2010FK-07442RL or CRCW2010442RFKEF instead.

Q: Are all parts RoHS3 compliant and MSL 1 rated? A: Yes. RC5025F4420CS, AC2010FK-07442RL, CRCW2010442RFKEF, and ERJ-12SF4420U are all RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level rating. This ensures compatibility with standard lead-free soldering processes and eliminates moisture-related handling restrictions during storage and assembly.