RMC1/10K40R2FTP Equivalent & Substitute Parts

Part Overview

The RMC1/10K40R2FTP is a 40.2 Ohm ±1% 0.125W (1/8W) chip resistor manufactured by Kamaya Inc. in 0805 (2012 Metric) package format with thick film composition. This component is classified as Active product status with 976 pieces currently in stock. Substitute parts are necessary to address supply chain continuity, alternative sourcing options, or specific application requirements such as automotive qualification or enhanced moisture resistance.

Substiute Parts

RMC1/10K40R2FTP

Kamaya Inc.In Stock: 1019RMC1/10K40R2FTP Datasheet

Current PartRFQ

ERJ-6ENF40R2V

Panasonic Electronic ComponentsIn Stock: 126030ERJ-6ENF40R2V Datasheet

DirectRFQ

KTR10EZPF40R2

Rohm SemiconductorIn Stock: 5002KTR10EZPF40R2 Datasheet

DirectRFQ

MCR10ERTF40R2

Rohm SemiconductorIn Stock: 1082MCR10ERTF40R2 Datasheet

DirectRFQ

RC0805FR-0740R2L

YAGEOIn Stock: 63444RC0805FR-0740R2L Datasheet

DirectRFQ

RMCF0805FT40R2

Stackpole Electronics IncIn Stock: 69609RMCF0805FT40R2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/10K40R2FTP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 40.2 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• MSL rating: 1 (Unlimited)

All five substitute parts listed below meet these mandatory parameters. Differences exist only in manufacturer identity, specific product series designation, packaging format (Tape & Reel versus Cut Tape), and optional certifications (AEC-Q200 automotive qualification or moisture-resistant construction). These differences do not affect electrical or mechanical compatibility in applications where the base specifications are required.

Parameter Comparison

Engineering Selection Recommendations

Active Product Status Preference: ERJ-6ENF40R2V (Panasonic), RC0805FR-0740R2L (YAGEO), and RMCF0805FT40R2 (Stackpole) maintain Active product status with substantial inventory availability (126,012 pcs, 63,357 pcs, and 69,555 pcs respectively). MCR10ERTF40R2 is marked as Discontinued at DiGi Electronics and should be avoided for new designs requiring long-term supply assurance.

Automotive Applications: ERJ-6ENF40R2V, KTR10EZPF40R2, and RMCF0805FT40R2 carry AEC-Q200 automotive qualification. KTR10EZPF40R2 additionally specifies High Voltage capability. These parts are suitable for automotive-grade circuit requirements.

Moisture Resistance: RC0805FR-0740R2L features explicit moisture-resistant construction and offers the lowest seated height (0.024" / 0.60mm), providing advantages in space-constrained applications.

RoHS Compliance: All substitute parts except the main RMC1/10K40R2FTP specify ROHS3 compliance, supporting environmental and regulatory requirements.

Packaging Format: RMC1/10K40R2FTP and all substitutes except MCR10ERTF40R2 are supplied in Tape & Reel format. MCR10ERTF40R2 uses Cut Tape & Digi-Reel format, which may affect procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6ENF40R2V replace RMC1/10K40R2FTP in any application?

A: Yes. ERJ-6ENF40R2V meets all mandatory electrical and mechanical parameters: 40.2 Ohm resistance, ±1% tolerance, 0.125W power rating, 0805 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. The AEC-Q200 automotive certification is an additional qualification that does not prevent use in non-automotive applications. Seated height difference (0.028" vs 0.026") is within typical PCB design tolerances.

Q: What is the difference between KTR10EZPF40R2 and other substitutes?

A: KTR10EZPF40R2 specifies High Voltage capability in addition to AEC-Q200 automotive qualification. This designation indicates enhanced performance in high-voltage circuit environments. All other electrical and mechanical specifications remain identical to other substitutes. This part is suitable for applications requiring both automotive qualification and high-voltage performance.

Q: Why is MCR10ERTF40R2 marked as discontinued?

A: MCR10ERTF40R2 is discontinued at DiGi Electronics, indicating reduced distributor support. While 997 pieces remain in current inventory, this part should not be selected for new designs requiring long-term component availability. Active alternatives with larger inventory quantities are available.

Q: Does the seated height variation affect PCB design?

A: Seated height ranges from 0.024" (RC0805FR-0740R2L) to 0.028" (ERJ-6ENF40R2V). These variations are within standard 0805 package tolerances and do not require PCB redesign. Component placement and solder reflow processes accommodate this range without modification.

Q: Are all substitutes suitable for moisture-sensitive applications?

A: All parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions. RC0805FR-0740R2L provides additional moisture-resistant construction as a design feature. For standard applications, all substitutes provide equivalent moisture performance.

Q: What packaging format should be selected for high-volume production?

A: Tape & Reel format (used by RMC1/10K40R2FTP, ERJ-6ENF40R2V, RC0805FR-0740R2L, and RMCF0805FT40R2) is standard for automated assembly processes. MCR10ERTF40R2 uses Cut Tape & Digi-Reel format, which may require different feeder compatibility on pick-and-place equipment.

Q: Can RoHS3 compliant parts replace non-RoHS specified parts?

A: Yes. ROHS3 compliance is a superset requirement that does not restrict use in applications not requiring RoHS certification. All substitute parts with ROHS3 designation are suitable replacements for the RMC1/10K40R2FTP in any application context.