RC1608J395CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608J395CS is a 3.9 MOhms ±5% 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 RoHS3 compliance. Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, enhanced reliability ratings, or alternative sourcing for supply chain optimization while maintaining electrical and mechanical compatibility within the 0603 package specification.

Substiute Parts

RC1608J395CS

Samsung Electro-MechanicsIn Stock: 955RC1608J395CS Datasheet

Current PartRFQ

RC0603JR-073M9L

YAGEOIn Stock: 56310RC0603JR-073M9L Datasheet

DirectRFQ

KTR03EZPF3904

Rohm SemiconductorIn Stock: 1458KTR03EZPF3904 Datasheet

UpgradeRFQ

MCR03ERTJ395

Rohm SemiconductorIn Stock: 3027MCR03ERTJ395 Datasheet

UpgradeRFQ

RMCF0603FT3M90

Stackpole Electronics IncIn Stock: 51933RMCF0603FT3M90 Datasheet

UpgradeRFQ

RMCF0603JT3M90

Stackpole Electronics IncIn Stock: 3166RMCF0603JT3M90 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608J395CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 3.9 MOhms (exact match required)
• Package / Case: 0603 (1608 Metric) (physical compatibility)
• Power Rating: 0.1W minimum (equal or greater)
• Composition: Thick Film
• Operating Temperature Range: -55°C ~ 155°C minimum (equal or wider)
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• RoHS3 Compliance: Required

Allowable Variation Parameters:

• Tolerance: ±5% or tighter (±1% acceptable as upgrade)
• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C (both acceptable)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (interchangeable for component selection)
• Manufacturer: Multiple qualified sources permitted
• Additional Features: Automotive AEC-Q200 qualification acceptable as enhancement

Substitutes are classified as Direct Equivalents (identical tolerance) or Upgrades (improved tolerance or enhanced ratings) based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance ±5%):

RC0603JR-073M9L (YAGEO) is a direct functional equivalent with identical electrical specifications. This part maintains ±5% tolerance, ±100ppm/°C temperature coefficient, and Active product status. Selection is appropriate for applications where the original Samsung part requires alternative sourcing or inventory replenishment without design modification.

Upgrade Options (Improved Tolerance ±1%):

KTR03EZPF3904 (Rohm Semiconductor) and RMCF0603FT3M90 (Stackpole Electronics Inc) both provide ±1% tolerance with Automotive AEC-Q200 qualification. These upgrades are suitable for applications requiring tighter resistance tolerance or automotive-grade reliability. Temperature coefficient remains acceptable at ±100ppm/°C (Rohm) and ±200ppm/°C (Stackpole).

Alternative with Discontinued Status:

MCR03ERTJ395 (Rohm Semiconductor) maintains ±5% tolerance and identical electrical performance but carries Discontinued at DiGi Electronics status. This part is not recommended for new designs or long-term production due to supply uncertainty, though existing inventory may be available through alternative distribution channels.

Stackpole Automotive-Grade Option:

RMCF0603JT3M90 (Stackpole Electronics Inc) provides ±5% tolerance with AEC-Q200 automotive qualification and Active product status. This selection is appropriate when automotive-grade reliability is required without tolerance upgrade.

All recommended substitutes maintain RoHS3 compliance, MSL 1 rating, and 0603 package compatibility with the original RC1608J395CS specification.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-073M9L (YAGEO) be used as a direct replacement for RC1608J395CS (Samsung)?

A: Yes. RC0603JR-073M9L is a direct equivalent with identical resistance (3.9 MOhms), tolerance (±5%), power rating (0.1W), package (0603), composition (thick film), operating temperature range (-55°C ~ 155°C), and RoHS3 compliance. Both parts are Active status. Substitution requires no circuit redesign.

Q: What is the difference between the ±5% and ±1% tolerance options?

A: Tolerance defines the acceptable resistance variance from the nominal 3.9 MOhms value. ±5% tolerance allows variance of ±195 kOhms (3.705 to 4.095 MOhms). ±1% tolerance restricts variance to ±39 kOhms (3.861 to 3.939 MOhms). Applications requiring tighter resistance control should select ±1% parts: KTR03EZPF3904 or RMCF0603FT3M90.

Q: Are Automotive AEC-Q200 rated parts (KTR03EZPF3904, RMCF0603FT3M90, RMCF0603JT3M90) suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification represents enhanced reliability testing and is a superset of standard commercial specifications. These parts are fully compatible with non-automotive applications and provide equivalent or superior performance to non-rated alternatives.

Q: Why is MCR03ERTJ395 marked as Discontinued at DiGi Electronics?

A: MCR03ERTJ395 has been discontinued from DiGi Electronics distribution. While existing inventory may be available through alternative channels, this part is not recommended for new designs or production planning. Use RC0603JR-073M9L, KTR03EZPF3904, RMCF0603FT3M90, or RMCF0603JT3M90 for assured long-term availability.

Q: What is the significance of Temperature Coefficient (±100ppm/°C vs ±200ppm/°C)?

A: Temperature coefficient defines resistance change per degree Celsius across the operating range. ±100ppm/°C (Samsung RC1608J395CS, YAGEO RC0603JR-073M9L, Rohm KTR03EZPF3904) provides tighter temperature stability than ±200ppm/°C (Rohm MCR03ERTJ395, Stackpole RMCF0603FT3M90, RMCF0603JT3M90). Both are acceptable for standard applications; critical temperature-sensitive circuits should prioritize ±100ppm/°C parts.

Q: Can these 0603 package resistors be interchanged with different package sizes?

A: No. All substitute parts specified in this reference maintain 0603 (1608 Metric) package format with identical footprint dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm). Package compatibility is mandatory; parts from different package families (0402, 0805, etc.) are not interchangeable.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake-out requirements. These components do not require special moisture control during storage or handling, simplifying logistics and inventory management compared to higher MSL ratings.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed in this reference—RC1608J395CS, RC0603JR-073M9L, KTR03EZPF3904, MCR03ERTJ395, RMCF0603FT3M90, and RMCF0603JT3M90—carry ROHS3 Compliant status, ensuring compliance with EU RoHS Directive 2011/65/EU and its amendments.