RC1608J394CS 390kΩ ±5% 0.1W 0603 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC1608J394CS is a 390 kΩ thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 metric) package format. This component operates across -55°C to 155°C with ±5% tolerance and 0.1W power rating. The part is ROHS3 compliant, moisture resistant, and maintains active product status with 974 units currently in stock. Equivalent and substitute parts are identified when electrical specifications (resistance value, tolerance, power rating, temperature coefficient) and mechanical parameters (package size, termination count, height) align with application requirements.

Substiute Parts

RC1608J394CS

Samsung Electro-MechanicsIn Stock: 1056RC1608J394CS Datasheet

Current PartRFQ

RC0603JR-07390KL

YAGEOIn Stock: 130386RC0603JR-07390KL Datasheet

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ERJ-3EKF3903V

Panasonic Electronic ComponentsIn Stock: 97870ERJ-3EKF3903V Datasheet

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ERJ-3GEYJ394V

Panasonic Electronic ComponentsIn Stock: 63030ERJ-3GEYJ394V Datasheet

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KTR03EZPF3903

Rohm SemiconductorIn Stock: 5323KTR03EZPF3903 Datasheet

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RC0603FR-07390KL

YAGEOIn Stock: 112355RC0603FR-07390KL Datasheet

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RMCF0603FG390K

Stackpole Electronics IncIn Stock: 3776RMCF0603FG390K Datasheet

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RMCF0603JT390K

Stackpole Electronics IncIn Stock: 29649RMCF0603JT390K Datasheet

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AC0603JR-07390KL

YAGEOIn Stock: 10970AC0603JR-07390KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC1608J394CS is based on strict alignment of electrical and mechanical parameters. All substitute parts maintain the 390 kΩ resistance value, 0603 package format, 0.1W power rating, and -55°C to 155°C operating temperature range. Substitutes are grouped into three categories:

Direct Equivalents (Identical Specifications): Parts with matching ±5% tolerance, ±100ppm/°C temperature coefficient, and moisture-resistant composition. These include RC0603JR-07390KL (YAGEO) and RMCF0603JT390K (Stackpole Electronics Inc).

Upgraded Tolerance Substitutes (±1% Tolerance): Parts with tighter tolerance specifications (±1% instead of ±5%), maintaining all other electrical and mechanical parameters. These include RC0603FR-07390KL (YAGEO), ERJ-3EKF3903V (Panasonic), KTR03EZPF3903 (Rohm Semiconductor), and RMCF0603FG390K (Stackpole Electronics Inc). Upgraded tolerance parts provide enhanced accuracy for precision applications.

Automotive-Rated Substitutes (AEC-Q200): Parts certified to automotive standards including ERJ-3GEYJ394V (Panasonic), ERJ-3EKF3903V (Panasonic), KTR03EZPF3903 (Rohm Semiconductor), RMCF0603FG390K (Stackpole Electronics Inc), RMCF0603JT390K (Stackpole Electronics Inc), and AC0603JR-07390KL (YAGEO). These components meet automotive reliability and qualification requirements.

Key Substitution Parameters:

• Resistance: 390 kΩ (fixed)
• Package: 0603 (1608 Metric) (fixed)
• Power Rating: 0.1W (fixed)
• Operating Temperature: -55°C ~ 155°C (fixed)
• Tolerance: ±5% or ±1% (acceptable variation)
• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C (acceptable variation)
• Certifications: Standard, Automotive AEC-Q200, or High Voltage (application-dependent)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): RC0603JR-07390KL (YAGEO) provides direct substitution with matching ±5% tolerance and ±100ppm/°C temperature coefficient. This part maintains identical electrical performance and is available in high inventory (130,365 units). RMCF0603JT390K (Stackpole Electronics Inc) offers direct substitution with automotive AEC-Q200 certification, suitable for applications requiring automotive-grade reliability.

For Precision Applications (Upgraded Tolerance): RC0603FR-07390KL (YAGEO), ERJ-3EKF3903V (Panasonic), KTR03EZPF3903 (Rohm Semiconductor), and RMCF0603FG390K (Stackpole Electronics Inc) provide ±1% tolerance specifications. These parts are suitable for circuits requiring tighter resistance accuracy. ERJ-3EKF3903V and KTR03EZPF3903 include automotive AEC-Q200 certification for automotive applications.

For Automotive Applications: ERJ-3GEYJ394V (Panasonic), ERJ-3EKF3903V (Panasonic), KTR03EZPF3903 (Rohm Semiconductor), RMCF0603FG390K (Stackpole Electronics Inc), RMCF0603JT390K (Stackpole Electronics Inc), and AC0603JR-07390KL (YAGEO) carry AEC-Q200 certification. KTR03EZPF3903 additionally features high voltage capability for demanding automotive environments.

For High-Volume Applications: RC0603JR-07390KL (YAGEO) with 130,365 units in stock and RC0603FR-07390KL (YAGEO) with 112,311 units provide optimal availability for high-volume production requirements.

Packaging Considerations: RC1608J394CS, RC0603JR-07390KL, ERJ-3GEYJ394V, ERJ-3EKF3903V, KTR03EZPF3903, RMCF0603JT390K, and AC0603JR-07390KL are supplied in Tape & Reel (TR) format suitable for automated assembly. RC0603FR-07390KL is available in Cut Tape (CT) & Digi-Reel® format, and RMCF0603FG390K in Cut Tape (CT) format for manual or semi-automated applications.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-07390KL directly replace RC1608J394CS? A: Yes. RC0603JR-07390KL (YAGEO) is a direct equivalent with identical 390 kΩ resistance, ±5% tolerance, 0.1W power rating, ±100ppm/°C temperature coefficient, and 0603 package format. Both parts are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between ±5% and ±1% tolerance substitutes? A: Tolerance specifies the maximum deviation from the nominal 390 kΩ resistance value. ±5% tolerance allows deviation up to ±19.5 kΩ, while ±1% tolerance restricts deviation to ±3.9 kΩ. Applications requiring precise resistance values should use ±1% tolerance parts such as RC0603FR-07390KL, ERJ-3EKF3903V, KTR03EZPF3903, or RMCF0603FG390K.

Q: Are automotive-rated parts (AEC-Q200) compatible with non-automotive applications? A: Yes. Automotive-rated parts meet or exceed standard specifications and are fully compatible with non-automotive applications. AEC-Q200 certification indicates enhanced reliability testing and qualification, making these parts suitable for any application requiring the specified electrical and mechanical parameters.

Q: What does temperature coefficient ±100ppm/°C versus ±200ppm/°C mean? A: Temperature coefficient indicates resistance value change per degree Celsius. ±100ppm/°C means the resistance changes by ±0.01% per °C, while ±200ppm/°C means ±0.02% per °C. Applications operating across wide temperature ranges or requiring stable resistance values should prioritize ±100ppm/°C parts.

Q: Can I use RMCF0603FG390K (Cut Tape) instead of RC1608J394CS (Tape & Reel)? A: Electrically and mechanically, yes. However, packaging format differs. Tape & Reel (TR) format is optimized for automated pick-and-place assembly, while Cut Tape (CT) is suitable for manual or semi-automated handling. Verify your assembly process compatibility before substitution.

Q: What is MSL 1 (Unlimited) moisture sensitivity? A: MSL 1 indicates the component has unlimited shelf life under normal storage conditions without requiring special moisture control or baking procedures. All listed parts carry MSL 1 rating, ensuring consistent handling requirements.

Q: Why would I choose ERJ-3EKF3903V (±1%, ±100ppm/°C) over RC1608J394CS (±5%, ±100ppm/°C)? A: ERJ-3EKF3903V provides tighter tolerance (±1% vs ±5%) for applications requiring higher accuracy. The ±100ppm/°C temperature coefficient remains identical. This upgrade is beneficial for precision analog circuits, sensor interfaces, or measurement applications where resistance accuracy directly impacts circuit performance.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance status, matching the RC1608J394CS environmental compliance requirement.

Q: What is the physical size difference between 0603 packages from different manufacturers? A: Standard 0603 (1608 metric) packages maintain consistent dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm). RMCF0603FG390K and RMCF0603JT390K specify 0.061" L x 0.031" W (1.55mm x 0.80mm), representing a 0.002" (0.05mm) length variation within acceptable PCB layout tolerances.

Q: Can I mix different manufacturers' parts in the same circuit board? A: Yes. All substitute parts meet identical electrical specifications (390 kΩ, 0.1W, -55°C to 155°C) and mechanical requirements (0603 package, 2 terminations). Mixing manufacturers is acceptable from an electrical and mechanical standpoint. Verify procurement, quality assurance, and traceability requirements with your organization's component management procedures.