RMCS1206FT2K05 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT2K05 is a 2.05 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This component is currently active in production and widely used in general-purpose applications requiring precision resistive elements with anti-sulfur protection.

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements call for enhanced specifications such as automotive qualification or increased power ratings while maintaining electrical compatibility.

Substiute Parts

RMCS1206FT2K05

Stackpole Electronics IncIn Stock: 730RMCS1206FT2K05 Datasheet

Current PartRFQ

CRCW12062K05FKEA

Vishay DaleIn Stock: 26329CRCW12062K05FKEA Datasheet

MFR RecommendedRFQ

CRCW12062K05FKEAHP

Vishay DaleIn Stock: 13534CRCW12062K05FKEAHP Datasheet

MFR RecommendedRFQ

ERJ-8ENF2051V

Panasonic Electronic ComponentsIn Stock: 31960ERJ-8ENF2051V Datasheet

MFR RecommendedRFQ

RC1206FR-072K05L

YAGEOIn Stock: 31133RC1206FR-072K05L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 2.05 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)

Secondary Compatibility Parameters:

• Power rating: 0.25W minimum (higher ratings acceptable)
• RoHS compliance: ROHS3 Compliant (required)
• Moisture Sensitivity Level: 1 (Unlimited) (required)
• Number of Terminations: 2 (exact match required)

All substitute parts listed meet or exceed these criteria. Variations in physical dimensions (length, width, height) within standard 1206 package tolerances and differences in specific features (automotive qualification, pulse withstanding capability) do not affect electrical substitutability.

Parameter Comparison

Engineering Selection Recommendations

CRCW12062K05FKEA (Vishay Dale) — Recommended primary substitute. Active product status with automotive AEC-Q200 qualification. Identical electrical specifications and operating parameters. Suitable for applications requiring automotive-grade reliability.

CRCW12062K05FKEAHP (Vishay Dale) — Enhanced power rating variant at 0.75W (3/4W) with pulse withstanding capability. Select when circuit design requires higher transient energy absorption or pulse immunity. Maintains all other electrical parameters. Active product status with automotive AEC-Q200 qualification.

RC1206FR-072K05L (YAGEO) — Active product with moisture-resistant feature. Electrically equivalent to primary part. Suitable for general-purpose applications with standard environmental protection requirements.

ERJ-8ENF2051V (Panasonic Electronic Components) — Electrically equivalent with automotive AEC-Q200 qualification. Product status is "Not For New Designs," indicating this part is in mature phase. Use only for legacy system maintenance or when existing design documentation specifies this part number.

Frequently Asked Questions (FAQ)

Q: Can CRCW12062K05FKEAHP replace RMCS1206FT2K05 in all applications?

A: Yes, from an electrical standpoint. The higher power rating (0.75W vs. 0.25W) is a superset capability and does not create incompatibility. Physical dimensions remain within 1206 package specifications. Verify PCB layout accommodates the component without thermal management conflicts.

Q: What is the difference between the Stackpole RMCS and Vishay CRCW series?

A: Both are thick film 1206 resistors with identical electrical specifications (2.05 kOhms, ±1%, ±100ppm/°C). Primary differences are manufacturer-specific features: RMCS includes anti-sulfur protection; CRCW variants include automotive AEC-Q200 qualification and pulse withstanding options. All meet ROHS3 compliance and MSL 1 requirements.

Q: Why is ERJ-8ENF2051V marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase with no planned enhancements or new variants. It remains available for existing applications and legacy system support but should not be selected for new circuit designs. CRCW12062K05FKEA or RC1206FR-072K05L are preferred alternatives for new designs.

Q: Are there physical dimension differences between these substitutes?

A: Minor variations exist within standard 1206 package tolerances. 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 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard PCB design clearances and do not affect functional substitutability.

Q: Which substitute offers the best supply availability?

A: CRCW12062K05FKEA shows 26,292 pieces in stock, CRCW12062K05FKEAHP shows 13,491 pieces, and RC1206FR-072K05L shows 31,027 pieces. RC1206FR-072K05L currently has the highest inventory level.

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

A: Yes. All substitutes share identical electrical parameters, package designation, and termination count. PCB footprints designed for 1206 resistors accommodate all listed parts. No circuit redesign is required for substitution.