RMC1/10-4R3JTP Equivalent & Substitute Parts

Part Overview

The RMC1/10-4R3JTP is a 4.3 Ohm ±5% 1/8W thick film chip resistor manufactured by Kamaya Inc. in 0805 (2012 Metric) package format. This component is classified as Active status and is supplied in Tape & Reel packaging. The part is designed for general-purpose applications requiring precision resistive elements in compact surface-mount form factors. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and packaging compatibility align with the original component's functional requirements.

Substiute Parts

RMC1/10-4R3JTP

Kamaya Inc.In Stock: 1199RMC1/10-4R3JTP Datasheet

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RC0805JR-074R3L

YAGEOIn Stock: 12930RC0805JR-074R3L Datasheet

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RMCF0805FT4R30

Stackpole Electronics IncIn Stock: 8533RMCF0805FT4R30 Datasheet

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RMCF0805JT4R30

Stackpole Electronics IncIn Stock: 7904RMCF0805JT4R30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/10-4R3JTP is determined by the following critical parameters:

Primary Substitution Criteria:

• Resistance value: 4.3 Ohms (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Composition: Thick Film (exact match required)
• Operating temperature range: -55°C ~ 155°C (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)
• Number of terminations: 2 (exact match required)

Secondary Substitution Parameters:

• Tolerance: ±5% or tighter (±1% acceptable as upgrade)
• Temperature coefficient: Within specified range
• Packaging format: Tape & Reel or equivalent supply method

All identified substitute parts meet or exceed these criteria while maintaining functional and mechanical compatibility with the original RMC1/10-4R3JTP specification.

Parameter Comparison

Engineering Selection Recommendations

RC0805JR-074R3L (YAGEO): This substitute maintains identical electrical specifications (4.3 Ohms ±5%, 0.125W) and mechanical compatibility with the RMC1/10-4R3JTP. The YAGEO RC_L series offers moisture-resistant thick film construction with ROHS3 compliance. The component is supplied in Cut Tape and Digi-Reel format. Height-seated dimension is 0.024" (0.60mm), which is 0.002" lower than the original part. This substitute is suitable for applications where moisture resistance and RoHS compliance are required.

RMCF0805FT4R30 (Stackpole Electronics Inc): This substitute provides enhanced tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical parameters. The RMCF series includes Automotive AEC-Q200 qualification, indicating suitability for automotive-grade applications. Temperature coefficient is ±200ppm/°C, which is tighter than the original part's -200/+500ppm/°C specification. ROHS3 compliance is included. This substitute is appropriate for applications requiring higher precision and automotive qualification.

RMCF0805JT4R30 (Stackpole Electronics Inc): This substitute maintains identical electrical specifications (4.3 Ohms ±5%, 0.125W) and mechanical compatibility with the RMC1/10-4R3JTP. The RMCF series includes Automotive AEC-Q200 qualification. Temperature coefficient is ±200ppm/°C. ROHS3 compliance is included. This substitute is suitable for applications requiring automotive-grade components with equivalent tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-074R3L replace RMC1/10-4R3JTP in all applications?

A: RC0805JR-074R3L is electrically and mechanically compatible with RMC1/10-4R3JTP. Both components share identical resistance (4.3 Ohms), tolerance (±5%), power rating (0.125W), package (0805), and operating temperature range (-55°C ~ 155°C). The YAGEO substitute has a seated height of 0.024" compared to 0.026" for the original part. This 0.002" difference is within typical PCB design tolerances for 0805 components.

Q: What is the difference between RMCF0805FT4R30 and RMCF0805JT4R30?

A: Both Stackpole RMCF series parts are mechanically and thermally identical. The primary difference is tolerance specification: RMCF0805FT4R30 offers ±1% tolerance, while RMCF0805JT4R30 offers ±5% tolerance. Both include Automotive AEC-Q200 qualification and ROHS3 compliance. Selection between these two depends on circuit tolerance requirements.

Q: Are all substitute parts available in the same packaging format as the original?

A: RMC1/10-4R3JTP and both Stackpole substitutes (RMCF0805FT4R30 and RMCF0805JT4R30) are supplied in Tape & Reel format. RC0805JR-074R3L is supplied in Cut Tape and Digi-Reel format. Packaging format selection depends on assembly equipment compatibility and procurement requirements.

Q: Do the substitute parts meet RoHS compliance?

A: RMCF0805FT4R30, RMCF0805JT4R30, and RC0805JR-074R3L are all ROHS3 compliant. The original RMC1/10-4R3JTP RoHS status is not specified in the provided data. All substitute parts and the original component are REACH Unaffected.

Q: What is the significance of the temperature coefficient difference between the original and substitutes?

A: The RMC1/10-4R3JTP has a temperature coefficient of -200/+500ppm/°C, indicating asymmetrical behavior across the operating temperature range. The substitute parts (RC0805JR-074R3L, RMCF0805FT4R30, RMCF0805JT4R30) all specify ±200ppm/°C, which is symmetrical and tighter. This provides more predictable resistance variation across temperature extremes, beneficial for precision applications.

Q: Can RMCF0805FT4R30 be used where RMC1/10-4R3JTP is specified?

A: RMCF0805FT4R30 is compatible with RMC1/10-4R3JTP in terms of electrical function and mechanical fit. The ±1% tolerance of RMCF0805FT4R30 is tighter than the ±5% specification of RMC1/10-4R3JTP, making it suitable for applications requiring higher precision. Automotive AEC-Q200 qualification provides additional reliability assurance for demanding environments.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. All four parts in this comparison (RMC1/10-4R3JTP, RC0805JR-074R3L, RMCF0805FT4R30, RMCF0805JT4R30) are classified as MSL 1, eliminating moisture-related compatibility concerns.