RMC1/8K1801FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8K1801FTP is a 1.8 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 with 1,166 pieces currently in stock. Substitute parts are necessary to address supply chain continuity, alternative sourcing options, and specific application requirements such as automotive qualification or moisture-resistant specifications.

Substiute Parts

RMC1/8K1801FTP

Kamaya Inc.In Stock: 1184RMC1/8K1801FTP Datasheet

Current PartRFQ

CRG1206F1K8

TE Connectivity Passive ProductIn Stock: 19032CRG1206F1K8 Datasheet

DirectRFQ

ERJ-8ENF1801V

Panasonic Electronic ComponentsIn Stock: 158433ERJ-8ENF1801V Datasheet

DirectRFQ

RC1206FR-071K8L

YAGEOIn Stock: 10268RC1206FR-071K8L Datasheet

DirectRFQ

RMCF1206FT1K80

Stackpole Electronics IncIn Stock: 50895RMCF1206FT1K80 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMC1/8K1801FTP is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 1.8 kOhms
• 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: 1 (Unlimited)
• Number of terminations: 2

All four substitute parts meet these critical parameters. Variations in physical dimensions (length, width, height) within the 1206 package specification and differences in product certifications (RoHS status, automotive qualification) do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

CRG1206F1K8 (TE Connectivity Passive Product): This substitute is electrically and mechanically equivalent to the RMC1/8K1801FTP. It carries Active product status and ROHS3 compliance. Selection is appropriate for general applications where automotive qualification is not required. Inventory availability is substantial at 18,977 pieces.

ERJ-8ENF1801V (Panasonic Electronic Components): This substitute meets all electrical and mechanical parameters and includes AEC-Q200 automotive qualification. However, product status is classified as Not For New Designs. This part is suitable only for legacy system maintenance or replacement applications where automotive-grade components are mandated. Inventory is highest among all substitutes at 158,384 pieces.

RC1206FR-071K8L (YAGEO): This substitute is electrically and mechanically equivalent with Active product status and ROHS3 compliance. It includes moisture-resistant features. Selection is appropriate for applications requiring enhanced moisture protection. Inventory availability is 10,200 pieces.

RMCF1206FT1K80 (Stackpole Electronics Inc): This substitute meets all electrical and mechanical parameters and includes AEC-Q200 automotive qualification with Active product status and ROHS3 compliance. Selection is appropriate for automotive applications or designs requiring automotive-grade component specifications. Inventory availability is 50,799 pieces.

Frequently Asked Questions (FAQ)

Q: Can RMC1/8K1801FTP be directly replaced with any of these substitute parts?

A: Yes. All four substitute parts are electrically and mechanically equivalent based on resistance value, tolerance, power rating, package type, composition, temperature coefficient, operating temperature range, and moisture sensitivity level. Direct substitution is permissible from an electrical standpoint.

Q: What is the difference between automotive-qualified and non-automotive versions?

A: ERJ-8ENF1801V and RMCF1206FT1K80 carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and performance standards. Non-automotive versions (CRG1206F1K8 and RC1206FR-071K8L) are suitable for general industrial and consumer applications. Automotive qualification is required only if the application specifies automotive-grade components.

Q: Why is ERJ-8ENF1801V marked as "Not For New Designs"?

A: This product status indicates that while the part remains available and functional, the manufacturer recommends using alternative parts for new design projects. This part is suitable for replacement or legacy system support only.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within the 1206 package specification. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), width from 0.061" to 0.063" (1.55mm to 1.60mm), and height from 0.025" to 0.028" (0.65mm to 0.70mm). These variations remain within standard 1206 package tolerances and do not affect PCB layout compatibility.

Q: Which substitute offers the best inventory availability?

A: ERJ-8ENF1801V has the highest inventory at 158,384 pieces. However, this part carries "Not For New Designs" status. For new designs, RMCF1206FT1K80 offers strong availability at 50,799 pieces with Active status and automotive qualification.

Q: What does RoHS3 compliance mean?

A: ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive 3, which restricts the use of specific hazardous materials in electrical and electronic equipment. All substitute parts except the main part specify ROHS3 compliance.

Q: Is moisture resistance a critical parameter for substitution?

A: No. All parts, including the main part and substitutes, carry Moisture Sensitivity Level 1 (Unlimited), indicating unlimited shelf life under normal storage conditions. The moisture-resistant feature of RC1206FR-071K8L is an additional benefit but not a requirement for substitution eligibility.