RMC1/8K5103FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K5103FTP is a 510 kOhms ±1% 0.25W thick film chip resistor manufactured by Kamaya Inc. in 1206 (3216 Metric) surface mount package. This component is classified as Active product status and is currently in stock with 827 pieces available. The RMC series represents a standard general-purpose resistor suitable for industrial and commercial applications. Substitute parts are necessary when primary inventory is depleted, when specific certifications or features are required for particular applications, or when alternative manufacturers offer improved lead times or cost optimization.

Substiute Parts

RMC1/8K5103FTP

Kamaya Inc.In Stock: 936RMC1/8K5103FTP Datasheet

Current PartRFQ

CRG1206F510K

TE Connectivity Passive ProductIn Stock: 1185CRG1206F510K Datasheet

DirectRFQ

ERJ-8ENF5103V

Panasonic Electronic ComponentsIn Stock: 55285ERJ-8ENF5103V Datasheet

DirectRFQ

KTR18EZPF5103

Rohm SemiconductorIn Stock: 83591KTR18EZPF5103 Datasheet

DirectRFQ

RC1206FR-07510KL

YAGEOIn Stock: 2181RC1206FR-07510KL Datasheet

DirectRFQ

RMCF1206FT510K

Stackpole Electronics IncIn Stock: 1228RMCF1206FT510K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/8K5103FTP is determined by strict electrical and mechanical parameter matching. All substitute parts must meet the following mandatory criteria:

Electrical Parameters (Non-negotiable):

• Resistance value: 510 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Non-negotiable):

• Package type: 1206 (3216 Metric)
• Number of terminations: 2
• Composition: Thick Film

Environmental Parameters:

• Moisture Sensitivity Level: MSL 1 (Unlimited)

All five substitute parts listed below satisfy these mandatory criteria. Variations in physical dimensions (length, width, height) within standard manufacturing tolerances, packaging format (Tape & Reel versus Cut Tape), and optional certifications (AEC-Q200, RoHS3) do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

CRG1206F510K (TE Connectivity), KTR18EZPF5103 (Rohm Semiconductor), RC1206FR-07510KL (YAGEO), and RMCF1206FT510K (Stackpole Electronics) are all classified as Active products and are suitable for new design implementations. These parts carry ROHS3 compliance and MSL 1 rating, indicating full environmental compliance and unlimited shelf life.

Application-Specific Selection:

KTR18EZPF5103 and RMCF1206FT510K include AEC-Q200 automotive qualification and high-voltage features, making them appropriate for automotive and harsh environment applications requiring enhanced reliability standards.

RC1206FR-07510KL includes moisture-resistant features, suitable for applications with elevated humidity exposure.

Legacy Inventory Consideration:

ERJ-8ENF5103V carries "Not For New Designs" status despite meeting all electrical and mechanical parameters. This part is available in high inventory (55,222 pieces) and remains electrically equivalent for existing product maintenance and repair applications. New design implementations should avoid this part number.

Inventory Availability:

KTR18EZPF5103 offers the highest inventory level (83,527 pieces), followed by ERJ-8ENF5103V (55,222 pieces), providing supply chain flexibility for high-volume requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMC1/8K5103FTP with any of these parts without circuit redesign?

A: Yes. All listed substitute parts meet identical electrical specifications (510 kΩ ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and identical package specifications (1206 thick film, 2 terminations). Direct substitution is electrically and mechanically compatible without circuit modification.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both packaging formats contain identical components. Tape & Reel (TR) packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape (CT) packaging is supplied in shorter tape segments. Selection depends on assembly equipment capability and order quantity requirements. Electrical performance is identical.

Q: Why is ERJ-8ENF5103V marked "Not For New Designs"?

A: This designation indicates the manufacturer (Panasonic) has discontinued active development and promotion of this product line. While the part remains electrically and mechanically equivalent and is suitable for maintenance of existing products, new circuit designs should utilize parts with Active status to ensure long-term availability and manufacturer support.

Q: Are all these parts RoHS3 compliant?

A: CRG1206F510K, ERJ-8ENF5103V, KTR18EZPF5103, RC1206FR-07510KL, and RMCF1206FT510K are all confirmed ROHS3 compliant. The original RMC1/8K5103FTP does not specify RoHS status in provided data.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive industry qualification standard for passive components. KTR18EZPF5103 and RMCF1206FT510K carry this certification, indicating qualification for automotive applications with enhanced reliability, temperature cycling, and stress testing requirements. This certification is optional for general industrial applications.

Q: Can physical dimension variations affect PCB assembly?

A: All parts use standard 1206 package specifications. Minor dimension variations (within 0.004" / 0.1mm) are within manufacturing tolerance and do not affect PCB footprint compatibility or automated assembly processes. Standard 1206 PCB pads accommodate all listed parts.

Q: What is MSL 1 rating?

A: Moisture Sensitivity Level 1 (MSL 1) indicates unlimited shelf life without moisture bake-out requirements. All listed parts carry MSL 1 rating, meaning they can be stored indefinitely under normal warehouse conditions without special humidity control or pre-reflow baking procedures.