RMC1/8K6340FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K6340FTP is a 634 Ohm ±1% 0.25W thick film chip resistor manufactured by Kamaya Inc. in 1206 (3216 Metric) package format. This component is classified as Active product status and is available in Tape & Reel packaging with 829 pieces in current inventory.

Substitute parts are necessary when the primary part becomes unavailable, when supply chain constraints occur, or when design requirements mandate alternative manufacturer certifications such as automotive AEC-Q200 qualification. All substitute parts listed maintain identical electrical specifications and mechanical compatibility within the 1206 package family.

Substiute Parts

RMC1/8K6340FTP

Kamaya Inc.In Stock: 920RMC1/8K6340FTP Datasheet

Current PartRFQ

ERJ-8ENF6340V

Panasonic Electronic ComponentsIn Stock: 18114ERJ-8ENF6340V Datasheet

DirectRFQ

MCR18ERTF6340

Rohm SemiconductorIn Stock: 1895MCR18ERTF6340 Datasheet

DirectRFQ

RC1206FR-07634RL

YAGEOIn Stock: 57062RC1206FR-07634RL Datasheet

DirectRFQ

RMCF1206FT634R

Stackpole Electronics IncIn Stock: 4143RMCF1206FT634R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/8K6340FTP is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

• Resistance value: 634 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture sensitivity level: MSL 1
• Termination count: 2

All four substitute parts listed meet these mandatory criteria. Variations in physical dimensions (length, width, height) within the 1206 package specification, product status classifications, and optional certifications (such as AEC-Q200 automotive qualification) do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): RC1206FR-07634RL (YAGEO) is the preferred substitute. This part maintains Active product status, ROHS3 compliance, moisture-resistant thick film composition, and the highest current inventory level (56982 pieces). It is suitable for new designs and provides long-term supply continuity.

Secondary Selection (Active Status with Automotive Qualification): RMCF1206FT634R (Stackpole Electronics Inc) is recommended when AEC-Q200 automotive qualification is required. This part is Active, ROHS3 compliant, and carries automotive-grade certification. Inventory availability is adequate at 4064 pieces.

Alternative with Automotive Qualification: ERJ-8ENF6340V (Panasonic Electronic Components) provides AEC-Q200 automotive qualification and the highest inventory availability (18089 pieces). However, this part is classified as "Not For New Designs," limiting its use to legacy system maintenance or replacement applications only.

Discontinued Part (Not Recommended for New Designs): MCR18ERTF6340 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs. This part is listed only for reference in legacy system identification and replacement scenarios.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF6340V be used as a direct replacement for RMC1/8K6340FTP?

A: Yes, ERJ-8ENF6340V meets all mandatory electrical and mechanical parameters. However, its "Not For New Designs" status restricts use to replacement applications only. For new designs, RC1206FR-07634RL or RMCF1206FT634R are preferred.

Q: What is the difference between the substitute parts in terms of physical dimensions?

A: All parts conform to the 1206 (3216 Metric) package specification. Minor dimensional variations exist within tolerance: RMC1/8K6340FTP and RC1206FR-07634RL measure 0.122" L × 0.063" W (3.10mm × 1.60mm), while ERJ-8ENF6340V and RMCF1206FT634R measure 0.126" L × 0.063" W (3.20mm × 1.60mm). Height differences range from 0.025" to 0.028" (0.65mm to 0.70mm). These variations remain within 1206 package compatibility and do not affect PCB layout or assembly.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 certification is mandatory for automotive applications. If your design targets automotive use, select RMCF1206FT634R (Stackpole) or ERJ-8ENF6340V (Panasonic). For non-automotive applications, AEC-Q200 certification is optional and does not affect electrical performance.

Q: Why is MCR18ERTF6340 listed if it is discontinued?

A: MCR18ERTF6340 is included for reference purposes only, enabling identification in legacy systems and existing inventory. It should not be selected for new designs due to discontinued status and limited future availability.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts are ROHS3 compliant. The main part RMC1/8K6340FTP does not specify RoHS status in the provided data. If ROHS3 compliance is a design requirement, all four substitute parts satisfy this criterion.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates unlimited shelf life and no moisture bake-out requirement before soldering. All parts, including the main part and substitutes, share this classification, ensuring identical handling and storage procedures.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes, all parts are electrically and mechanically interchangeable within the 1206 package family. Minor physical dimension variations do not affect PCB routing, component placement, or assembly processes.