RC2012F1R8CS Equivalent & Substitute Parts

Part Overview

The RC2012F1R8CS is a 1.8 Ohms ±1% 0.125W chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 743 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity.

Substiute Parts

RC2012F1R8CS

Samsung Electro-MechanicsIn Stock: 795RC2012F1R8CS Datasheet

Current PartRFQ

ERJ-6BQF1R8V

Panasonic Electronic ComponentsIn Stock: 40740ERJ-6BQF1R8V Datasheet

UpgradeRFQ

ERJ-6RQF1R8V

Panasonic Electronic ComponentsIn Stock: 30961ERJ-6RQF1R8V Datasheet

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RC0805FR-071R8L

YAGEOIn Stock: 37753RC0805FR-071R8L Datasheet

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RMCF0805FT1R80

Stackpole Electronics IncIn Stock: 13710RMCF0805FT1R80 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC2012F1R8CS is determined by strict alignment of the following parameters:

Critical Parameters (Must Match Exactly):

• Resistance value: 1.8 Ohms
• Tolerance: ±1%
• Package / Case: 0805 (2012 Metric)
• Operating Temperature Range: -55°C to 155°C
• Composition: Thick Film
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant

Allowable Variation:

• Power Rating: Substitute parts may equal or exceed 0.125W (1/8W)
• Temperature Coefficient: Substitute parts may differ within ±200ppm/°C to ±300ppm/°C range
• Height - Seated (Max): Substitute parts may vary within 0.024" to 0.028" (0.60mm to 0.70mm)
• Certifications: Substitute parts may include additional certifications (AEC-Q200) beyond base requirements

Four substitute parts meet these criteria across manufacturers Panasonic Electronic Components, YAGEO, and Stackpole Electronics Inc.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Identical Power Rating):

ERJ-6RQF1R8V, RC0805FR-071R8L, and RMCF0805FT1R80 are direct functional equivalents to RC2012F1R8CS. All three maintain 0.125W (1/8W) power rating, identical resistance and tolerance specifications, and matching operating temperature range. These parts are suitable for one-to-one replacement in applications where the original Samsung component is specified.

Upgraded Substitute (Higher Power Rating):

ERJ-6BQF1R8V provides 0.333W (1/3W) power rating, exceeding the original 0.125W specification. This part is suitable for applications requiring enhanced thermal performance or higher current dissipation capacity while maintaining all other electrical and mechanical parameters.

Automotive-Qualified Options:

ERJ-6RQF1R8V, RMCF0805FT1R80, and ERJ-6BQF1R8V carry AEC-Q200 automotive qualification. These parts are appropriate for automotive and high-reliability applications where automotive-grade components are required or preferred.

Inventory Availability:

All substitute parts are in active production with substantial stock levels: ERJ-6BQF1R8V (40,654 units), ERJ-6RQF1R8V (30,871 units), RC0805FR-071R8L (37,706 units), and RMCF0805FT1R80 (13,679 units).

Frequently Asked Questions (FAQ)

Q: Can ERJ-6BQF1R8V replace RC2012F1R8CS in all applications?

A: ERJ-6BQF1R8V is mechanically and electrically compatible with RC2012F1R8CS. The higher power rating (0.333W vs. 0.125W) does not create incompatibility; it provides additional thermal margin. Physical dimensions remain within acceptable tolerance (height difference of 0.002" / 0.05mm). Substitution is valid for all applications where RC2012F1R8CS is specified.

Q: What is the difference between ERJ-6RQF1R8V and ERJ-6BQF1R8V?

A: Both are Panasonic parts with identical resistance, tolerance, and operating temperature. The primary difference is power rating: ERJ-6RQF1R8V is 0.125W (1/8W), matching the original part, while ERJ-6BQF1R8V is 0.333W (1/3W). Both carry AEC-Q200 automotive qualification. Selection depends on thermal design requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC2012F1R8CS and all four substitute parts (ERJ-6RQF1R8V, RC0805FR-071R8L, RMCF0805FT1R80, ERJ-6BQF1R8V) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Does package height variation affect PCB assembly?

A: Package height variation ranges from 0.024" to 0.028" (0.60mm to 0.70mm). This 0.004" (0.10mm) variation is within standard PCB assembly tolerances and does not affect reflow soldering, wave soldering, or component placement processes for 0805 packages.

Q: Which substitute part has the lowest temperature coefficient?

A: ERJ-6RQF1R8V, RC0805FR-071R8L, RMCF0805FT1R80, and ERJ-6BQF1R8V all have ±200ppm/°C temperature coefficient, compared to RC2012F1R8CS at ±300ppm/°C. The lower coefficient provides improved temperature stability across the -55°C to 155°C operating range.

Q: Can I use these parts interchangeably in production?

A: Yes. All substitute parts meet identical electrical specifications (1.8 Ohms ±1%), mechanical package requirements (0805 / 2012 Metric), and environmental compliance (ROHS3, MSL 1). They are suitable for interchangeable use in production environments with standard PCB assembly processes.