RC1608F391CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F391CS is a 390 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 and is RoHS3 compliant with moisture resistant characteristics. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, packaging standards, and compliance certifications to ensure direct interchangeability in circuit applications.

Substiute Parts

RC1608F391CS

Samsung Electro-MechanicsIn Stock: 801RC1608F391CS Datasheet

Current PartRFQ

CR0603-FX-3900ELF

Bourns Inc.In Stock: 55259CR0603-FX-3900ELF Datasheet

DirectRFQ

CRG0603F390R

TE Connectivity Passive ProductIn Stock: 20307CRG0603F390R Datasheet

DirectRFQ

RC0603FR-07390RL

YAGEOIn Stock: 163168RC0603FR-07390RL Datasheet

DirectRFQ

AC0603FR-07390RL

YAGEOIn Stock: 10162AC0603FR-07390RL Datasheet

SimilarRFQ

CRCW0603390RFKEA

Vishay DaleIn Stock: 5120CRCW0603390RFKEA Datasheet

SimilarRFQ

ERJ-3EKF3900V

Panasonic Electronic ComponentsIn Stock: 228210ERJ-3EKF3900V Datasheet

SimilarRFQ

RMCF0603FT390R

Stackpole Electronics IncIn Stock: 799RMCF0603FT390R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F391CS is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

• Resistance value: 390 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 to 155°C
• Termination count: 2
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting all mandatory parameters with identical electrical and mechanical specifications. These include CR0603-FX-3900ELF (Bourns Inc.), CRG0603F390R (TE Connectivity), and RC0603FR-07390RL (YAGEO).

Similar Substitutes: Parts meeting all mandatory parameters with additional automotive qualification (AEC-Q200 rating). These include AC0603FR-07390RL (YAGEO), CRCW0603390RFKEA (Vishay Dale), ERJ-3EKF3900V (Panasonic), and RMCF0603FT390R (Stackpole Electronics). AEC-Q200 qualification represents enhanced reliability testing and does not restrict use in non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Non-Automotive): CR0603-FX-3900ELF, CRG0603F390R, and RC0603FR-07390RL are direct electrical and mechanical equivalents to RC1608F391CS. All three parts maintain identical specifications across resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. All are RoHS3 compliant with MSL 1 rating. These parts are suitable for applications where AEC-Q200 automotive qualification is not required.

Similar Substitutes (Automotive-Qualified): AC0603FR-07390RL, CRCW0603390RFKEA, ERJ-3EKF3900V, and RMCF0603FT390R meet all electrical and mechanical specifications of the RC1608F391CS with the addition of AEC-Q200 automotive qualification. AEC-Q200 certification indicates compliance with automotive reliability and quality standards. These parts are suitable for both automotive and non-automotive applications where enhanced qualification is beneficial.

Product Status and Availability: All substitute parts listed maintain Active product status. Inventory availability varies: RC0603FR-07390RL (YAGEO) offers the highest stock level at 163,073 pieces, while ERJ-3EKF3900V (Panasonic) provides 228,101 pieces. CR0603-FX-3900ELF (Bourns) maintains 55,167 pieces in stock.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-3900ELF replace RC1608F391CS in any application?

A: CR0603-FX-3900ELF is a direct substitute meeting all electrical specifications (390Ω ±1%, 0.1W), mechanical dimensions (0603 package), temperature characteristics (±100ppm/°C, -55°C to 155°C), and compliance requirements (RoHS3, MSL 1). Direct substitution is valid for non-automotive applications. For automotive applications, AEC-Q200 qualified alternatives are available.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes (CR0603-FX-3900ELF, CRG0603F390R, RC0603FR-07390RL) match all specifications without automotive qualification. Similar substitutes (AC0603FR-07390RL, CRCW0603390RFKEA, ERJ-3EKF3900V, RMCF0603FT390R) include AEC-Q200 automotive qualification in addition to matching all base specifications. AEC-Q200 qualification does not restrict use in non-automotive circuits.

Q: Are there dimensional differences between substitute parts?

A: All parts conform to 0603 (1608 Metric) package standard. Minor dimensional variations exist within tolerance: most parts measure 0.063" L × 0.031" W (1.60mm × 0.80mm), while CRCW0603390RFKEA measures 0.061" L × 0.033" W (1.55mm × 0.85mm) and RMCF0603FT390R measures 0.061" L × 0.031" W (1.55mm × 0.80mm). These variations remain within 0603 package specifications and do not affect PCB footprint compatibility.

Q: Can I use an AEC-Q200 qualified part in a non-automotive circuit?

A: Yes. AEC-Q200 qualification represents additional reliability testing and quality assurance. Parts with AEC-Q200 certification are fully compatible with non-automotive applications and may be used as direct substitutes without restriction.

Q: What packaging formats are available for these substitutes?

A: RC1608F391CS is supplied in Tape & Reel (TR) format. Direct substitutes CR0603-FX-3900ELF and CRG0603F390R are also supplied in Tape & Reel (TR). RC0603FR-07390RL and all similar substitutes are supplied in Cut Tape (CT) & Digi-Reel® format. Packaging format does not affect electrical or mechanical compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of RC1608F391CS.