RC1608F52R3CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F52R3CS is a 52.3 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing improves supply chain resilience, or when design requirements necessitate components with enhanced certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC1608F52R3CS

Samsung Electro-MechanicsIn Stock: 796RC1608F52R3CS Datasheet

Current PartRFQ

RC0603FR-0752R3L

YAGEOIn Stock: 74987RC0603FR-0752R3L Datasheet

DirectRFQ

MCR03ERTF52R3

Rohm SemiconductorIn Stock: 1899MCR03ERTF52R3 Datasheet

UpgradeRFQ

AC0603FR-0752R3L

YAGEOIn Stock: 3608AC0603FR-0752R3L Datasheet

SimilarRFQ

CRCW060352R3FKEA

Vishay DaleIn Stock: 70838CRCW060352R3FKEA Datasheet

SimilarRFQ

ERJ-3EKF52R3V

Panasonic Electronic ComponentsIn Stock: 949872ERJ-3EKF52R3V Datasheet

SimilarRFQ

RMCF0603FT52R3

Stackpole Electronics IncIn Stock: 26517RMCF0603FT52R3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F52R3CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 52.3 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

All substitute parts listed meet these mandatory parameters. Substitute parts are grouped into three categories based on product availability and additional certifications:

Direct Substitute: RC0603FR-0752R3L (YAGEO) — Identical electrical and mechanical specifications with active product status and high inventory availability.

Upgrade Substitute: MCR03ERTF52R3 (Rohm Semiconductor) — Meets all mandatory parameters; product status is discontinued at DiGi Electronics but inventory remains available.

Similar Substitutes with Enhanced Certifications: AC0603FR-0752R3L, CRCW060352R3FKEA, ERJ-3EKF52R3V, and RMCF0603FT52R3 — All meet mandatory parameters and include automotive AEC-Q200 qualification, providing enhanced reliability for automotive applications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Active Product Status: RC0603FR-0752R3L (YAGEO) is the primary direct substitute. This part maintains identical electrical and mechanical specifications to the RC1608F52R3CS, carries Active product status, and demonstrates superior inventory availability (74,889 units in stock). Selection of this part ensures continuity of supply and eliminates compatibility risk.

For Automotive Applications Requiring AEC-Q200 Certification: AC0603FR-0752R3L (YAGEO), CRCW060352R3FKEA (Vishay Dale), ERJ-3EKF52R3V (Panasonic), and RMCF0603FT52R3 (Stackpole) all meet the mandatory electrical and mechanical parameters while providing automotive AEC-Q200 qualification. These parts are suitable for designs requiring enhanced reliability assurance in automotive environments. All four maintain Active product status with substantial inventory levels.

For Supply Chain Resilience: ERJ-3EKF52R3V (Panasonic) offers the highest inventory availability at 949,859 units in stock, providing maximum supply security. CRCW060352R3FKEA (Vishay Dale) provides secondary supply assurance with 70,776 units available.

Regarding MCR03ERTF52R3 (Rohm Semiconductor): This part meets all mandatory electrical and mechanical parameters but carries Discontinued at DiGi Electronics status. While 1,853 units remain in inventory, this part should be selected only when other active alternatives are unavailable or when existing design validation specifically requires Rohm Semiconductor components.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0752R3L directly replace RC1608F52R3CS without design modification?

A: Yes. RC0603FR-0752R3L meets all mandatory electrical parameters (52.3 Ohms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C), mechanical specifications (0603 package, 2 terminations), and compliance requirements (ROHS3, MSL 1). No design modification is required.

Q: What is the difference between the standard substitute parts and the AEC-Q200 qualified parts?

A: All substitute parts listed meet identical electrical and mechanical specifications. The AEC-Q200 qualified parts (AC0603FR-0752R3L, CRCW060352R3FKEA, ERJ-3EKF52R3V, RMCF0603FT52R3) carry automotive industry certification indicating enhanced reliability testing and qualification. Selection depends on application requirements; AEC-Q200 certification is necessary for automotive applications but not required for general industrial or consumer applications.

Q: Are there physical dimension differences between substitute parts?

A: Substitute parts maintain the 0603 (1608 Metric) package designation. Minor dimensional variations exist within manufacturing tolerances: CRCW060352R3FKEA measures 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" max height, while most other parts measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" max height. These variations remain within standard PCB design tolerances for 0603 components and do not affect interchangeability.

Q: Why is MCR03ERTF52R3 listed as discontinued?

A: MCR03ERTF52R3 carries Discontinued at DiGi Electronics status, indicating that this distributor no longer actively stocks or promotes this part. However, inventory remains available (1,853 units). This part should be selected only when supply from active alternatives is constrained or when design validation specifically requires Rohm Semiconductor components.

Q: Which substitute part offers the best supply availability?

A: ERJ-3EKF52R3V (Panasonic) provides the highest inventory level at 949,859 units in stock, followed by CRCW060352R3FKEA (Vishay Dale) at 70,776 units. Both parts are Active status and suitable for applications requiring maximum supply security.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, matching the compliance requirement of the RC1608F52R3CS.

Q: Can I use these substitute parts interchangeably in the same design?

A: Yes, for electrical and mechanical functionality. All substitute parts meet identical resistance, tolerance, power rating, package, and temperature specifications. However, if your design specifies automotive AEC-Q200 certification, you must select from the four AEC-Q200 qualified alternatives (AC0603FR-0752R3L, CRCW060352R3FKEA, ERJ-3EKF52R3V, RMCF0603FT52R3).