RC1608J431CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608J431CS is a 430 Ohms ±5% 0.1W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is actively produced and widely used in general-purpose electronic applications requiring moisture-resistant film resistors. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, when design requirements demand enhanced specifications such as tighter tolerance or automotive qualification, or when alternative packaging formats are required for manufacturing optimization.

Substiute Parts

RC1608J431CS

Samsung Electro-MechanicsIn Stock: 1120RC1608J431CS Datasheet

Current PartRFQ

RC0603JR-07430RL

YAGEOIn Stock: 177148RC0603JR-07430RL Datasheet

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RMCF0603JT430R

Stackpole Electronics IncIn Stock: 222948RMCF0603JT430R Datasheet

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ERJ-3EKF4300V

Panasonic Electronic ComponentsIn Stock: 127665ERJ-3EKF4300V Datasheet

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ERJ-3GEYJ431V

Panasonic Electronic ComponentsIn Stock: 167507ERJ-3GEYJ431V Datasheet

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KTR03EZPF4300

Rohm SemiconductorIn Stock: 3837KTR03EZPF4300 Datasheet

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MCR03ERTF4300

Rohm SemiconductorIn Stock: 842MCR03ERTF4300 Datasheet

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MCR03ERTJ431

Rohm SemiconductorIn Stock: 1032MCR03ERTJ431 Datasheet

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RC0603FR-07430RL

YAGEOIn Stock: 135175RC0603FR-07430RL Datasheet

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RMCF0603FT430R

Stackpole Electronics IncIn Stock: 113280RMCF0603FT430R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1608J431CS is determined by strict electrical and mechanical compatibility criteria. All substitute parts must meet the following mandatory parameters:

Core Compatibility Requirements:

• Resistance value: 430 Ohms
• Package format: 0603 (1608 Metric)
• Power rating: 0.1W (1/10W)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Tolerance Grouping: Substitutes are categorized into two tolerance classes:

1. Direct Equivalents (±5% Tolerance): Parts with identical ±5% tolerance specification maintain full electrical equivalence with the RC1608J431CS.

2. Upgraded Substitutes (±1% Tolerance): Parts with tighter ±1% tolerance provide enhanced precision and are electrically compatible while offering improved performance characteristics.

Feature-Based Grouping:

• Standard moisture-resistant thick film resistors
• Automotive AEC-Q200 qualified variants
• High voltage rated variants

Substitution is valid across tolerance classes and feature sets provided all core compatibility requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Primary Direct Equivalent: RC0603JR-07430RL (YAGEO) is the recommended direct equivalent for RC1608J431CS. Both parts share identical electrical specifications (430Ω ±5%, 0.1W, ±100ppm/°C), moisture-resistant thick film composition, and active product status. This part maintains full functional compatibility with equivalent inventory availability.

Standard Tolerance Substitutes (±5%): RMCF0603JT430R and ERJ-3GEYJ431V are valid ±5% tolerance substitutes. Both are actively produced and ROHS3 compliant. RMCF0603JT430R carries Stackpole manufacturing and AEC-Q200 automotive qualification. ERJ-3GEYJ431V is Panasonic-manufactured with AEC-Q200 qualification. These parts are suitable for applications where automotive-grade reliability is beneficial but not mandatory.

Upgraded Precision Substitutes (±1% Tolerance): ERJ-3EKF4300V, KTR03EZPF4300, RC0603FR-07430RL, and RMCF0603FT430R provide tighter ±1% tolerance specifications. These parts are electrically compatible and suitable for applications requiring enhanced precision. ERJ-3EKF4300V and RMCF0603FT430R carry AEC-Q200 automotive qualification. KTR03EZPF4300 includes high voltage rating in addition to AEC-Q200 qualification. RC0603FR-07430RL maintains moisture-resistant characteristics with YAGEO manufacturing.

Discontinued Parts: MCR03ERTF4300 and MCR03ERTJ431 are discontinued at DiGi Electronics and should not be selected for new designs. Existing inventory may be available through alternative distribution channels, but these parts are not recommended for ongoing production use.

Packaging Considerations: RC1608J431CS is supplied in Tape & Reel format. RC0603FR-07430RL is supplied in Cut Tape & Digi-Reel format. Both packaging formats are compatible with standard pick-and-place assembly equipment. Selection between formats depends on manufacturing process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-07430RL directly replace RC1608J431CS without circuit modification?

A: Yes. RC0603JR-07430RL is a direct equivalent with identical resistance (430Ω), tolerance (±5%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). No circuit modification is required.

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

A: Tolerance specifies the maximum deviation from the nominal 430Ω resistance value. ±5% tolerance allows deviation up to ±21.5Ω, while ±1% tolerance limits deviation to ±4.3Ω. Both are electrically compatible with the RC1608J431CS circuit application. ±1% parts provide tighter resistance control for precision-critical circuits.

Q: Are AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates automotive-grade reliability testing and is a superset of standard industrial specifications. AEC-Q200 qualified parts such as RMCF0603FT430R and ERJ-3EKF4300V are fully compatible with general-purpose applications and provide enhanced reliability margins.

Q: What does "Moisture Resistant" mean in the part description?

A: Moisture Resistant indicates the thick film resistor construction includes protective coating against moisture absorption. RC1608J431CS and RC0603FR-07430RL both feature moisture-resistant composition. This characteristic is beneficial in humid environments but not mandatory for all applications.

Q: Can I substitute a Cut Tape & Digi-Reel packaged part for a Tape & Reel packaged part?

A: Packaging format compatibility depends on assembly equipment configuration. Both formats are compatible with standard pick-and-place equipment. Verify that your manufacturing process supports the specific packaging format before substitution. RC0603FR-07430RL (Cut Tape & Digi-Reel) can replace RC1608J431CS (Tape & Reel) if your assembly line accepts both formats.

Q: Why would I select KTR03EZPF4300 over other ±1% substitutes?

A: KTR03EZPF4300 includes high voltage rating in addition to ±1% tolerance and AEC-Q200 qualification. Select this part for applications requiring enhanced voltage handling capability beyond standard thick film resistor specifications.

Q: Are MCR03ERTF4300 and MCR03ERTJ431 still available for purchase?

A: Both parts are discontinued at DiGi Electronics. Limited inventory may be available through alternative distributors. For new designs and ongoing production, select from active parts: RC0603JR-07430RL, ERJ-3EKF4300V, ERJ-3GEYJ431V, KTR03EZPF4300, RC0603FR-07430RL, or RMCF0603FT430R.

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

A: Temperature coefficient specifies resistance change per degree Celsius. ±100ppm/°C indicates lower temperature-induced resistance drift compared to ±200ppm/°C. For temperature-sensitive applications, select parts with ±100ppm/°C specification: RC1608J431CS, RC0603JR-07430RL, ERJ-3EKF4300V, KTR03EZPF4300, RC0603FR-07430RL, or RMCF0603FT430R.

Q: Is ROHS3 compliance mandatory for all substitute parts?

A: All listed substitute parts are ROHS3 compliant, matching the RC1608J431CS specification. ROHS3 compliance is a standard requirement for electronic components in most markets and is maintained across all equivalent and substitute options.