RC1608F512CS Equivalent & Substitute Parts

Part Overview

The RC1608F512CS is a 5.1 kOhm ±1% thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is currently active in production with 722 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and compliance certifications to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RC1608F512CS

Samsung Electro-MechanicsIn Stock: 751RC1608F512CS Datasheet

Current PartRFQ

CR0603-FX-5101ELF

Bourns Inc.In Stock: 126255CR0603-FX-5101ELF Datasheet

DirectRFQ

CRG0603F5K1

TE Connectivity Passive ProductIn Stock: 20214CRG0603F5K1 Datasheet

DirectRFQ

RC0603FR-075K1L

YAGEOIn Stock: 10114RC0603FR-075K1L Datasheet

DirectRFQ

KTR03EZPF5101

Rohm SemiconductorIn Stock: 3410KTR03EZPF5101 Datasheet

UpgradeRFQ

AC0603FR-075K1L

YAGEOIn Stock: 74776AC0603FR-075K1L Datasheet

SimilarRFQ

AF0603FR-075K1L

YAGEOIn Stock: 9470AF0603FR-075K1L Datasheet

SimilarRFQ

CRCW06035K10FKEA

Vishay DaleIn Stock: 1156CRCW06035K10FKEA Datasheet

SimilarRFQ

CRCW06035K10FKEB

Vishay DaleIn Stock: 20151CRCW06035K10FKEB Datasheet

SimilarRFQ

ERJ-3EKF5101V

Panasonic Electronic ComponentsIn Stock: 310608ERJ-3EKF5101V Datasheet

SimilarRFQ

RMCF0603FT5K10

Stackpole Electronics IncIn Stock: 834415RMCF0603FT5K10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on functional equivalence and feature alignment:

Direct Substitutes maintain identical electrical and mechanical specifications with no additional features. These parts are interchangeable without design modification:

• CR0603-FX-5101ELF (Bourns Inc.)
• CRG0603F5K1 (TE Connectivity Passive Product)
• RC0603FR-075K1L (YAGEO)

Upgrade Substitutes provide enhanced capabilities while maintaining core electrical specifications. These parts include automotive-grade qualification (AEC-Q200) and high-voltage construction:

• KTR03EZPF5101 (Rohm Semiconductor)

Similar Substitutes match all critical electrical and mechanical parameters but include additional features such as automotive qualification, anti-sulfur construction, or alternative packaging formats:

• AC0603FR-075K1L (YAGEO) – Automotive AEC-Q200, Moisture Resistant
• AF0603FR-075K1L (YAGEO) – Anti-Sulfur, Automotive AEC-Q200
• CRCW06035K10FKEA (Vishay Dale) – Automotive AEC-Q200
• CRCW06035K10FKEB (Vishay Dale) – Automotive AEC-Q200
• ERJ-3EKF5101V (Panasonic Electronic Components) – Automotive AEC-Q200
• RMCF0603FT5K10 (Stackpole Electronics Inc) – Automotive AEC-Q200

Substitution is determined by matching: resistance value (5.1 kOhms), tolerance (±1%), power rating (0.1W), package (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1).

Parameter Comparison

Engineering Selection Recommendations

For Standard Applications: CR0603-FX-5101ELF, CRG0603F5K1, and RC0603FR-075K1L provide direct functional equivalence to the RC1608F512CS. All three maintain identical electrical specifications, package dimensions, and ROHS3 compliance. Selection among these direct substitutes depends on supplier availability and lead time.

For Automotive Applications: KTR03EZPF5101, AC0603FR-075K1L, AF0603FR-075K1L, CRCW06035K10FKEA, ERJ-3EKF5101V, and RMCF0603FT5K10 are qualified to AEC-Q200 automotive standards. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability and qualification documentation.

For High-Reliability Environments: RMCF0603FT5K10 offers the largest inventory (834,378 units) and active production status, supporting long-term supply chain stability. ERJ-3EKF5101V (310,571 units) and CRCW06035K10FKEA (1,120 units) provide alternative high-volume sources.

Avoid: CRCW06035K10FKEB is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for RC1608F512CS?

A: CR0603-FX-5101ELF, CRG0603F5K1, and RC0603FR-075K1L are direct functional equivalents with identical electrical and mechanical specifications. All other listed parts include additional features (automotive qualification, anti-sulfur construction) but remain electrically compatible. Physical dimensions are within tolerance across all listed parts.

Q: What is the difference between direct substitutes and automotive-qualified parts?

A: Direct substitutes (CR0603-FX-5101ELF, CRG0603F5K1, RC0603FR-075K1L) match all core specifications without additional certifications. Automotive-qualified parts carry AEC-Q200 certification, indicating compliance with automotive reliability and qualification standards. Automotive parts are suitable for both standard and automotive applications.

Q: Are there packaging differences between these parts?

A: The RC1608F512CS is supplied in Tape & Reel (TR) format. RC0603FR-075K1L is supplied in Cut Tape (CT) & Digi-Reel format. AC0603FR-075K1L and CRCW06035K10FKEA are also supplied in Cut Tape format. All other parts use Tape & Reel packaging. Packaging format does not affect electrical performance but may impact procurement and assembly processes.

Q: Which substitute offers the best long-term supply availability?

A: RMCF0603FT5K10 (Stackpole Electronics Inc) maintains the highest inventory level (834,378 units) with active production status, providing optimal supply chain continuity. ERJ-3EKF5101V (Panasonic, 310,571 units) is the second-largest inventory source.

Q: Can I use CRCW06035K10FKEB as a substitute?

A: CRCW06035K10FKEB is discontinued at DiGi Electronics and should not be selected for new designs. Use CRCW06035K10FKEA instead, which maintains identical specifications and active production status.

Q: Do all substitute parts meet ROHS3 compliance?

A: All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the RC1608F512CS compliance profile.