RCS2012F821CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F821CS is a 820 Ohm ±1% 0.125W (1/8W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C temperature range. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and package standardization to support component procurement flexibility and supply chain continuity.

Substiute Parts

RCS2012F821CS

Samsung Electro-MechanicsIn Stock: 906RCS2012F821CS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F821CS are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

• Resistance value: 820 Ohms
• Tolerance: ±1% (primary group) or ±0.5% (higher precision alternative)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C ~ 155°C
• Terminations: 2
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Secondary Variation Parameters:

• Power Rating: 0.125W (1/8W) primary equivalents; 0.5W (1/2W) higher power alternatives
• Features: Anti-Sulfur, Moisture Resistant (main part); Automotive AEC-Q200 certification available in substitutes
• Manufacturer: Samsung Electro-Mechanics (main), YAGEO, Vishay Dale, Panasonic Electronic Components (substitutes)

Substitutes are divided into two functional groups: direct equivalents matching 0.125W power rating, and higher-rated alternatives at 0.5W for applications requiring increased power dissipation capability within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (0.125W, ±1% Tolerance):

AC0805FR-07820RL (YAGEO) and RC0805FR-07820RL (YAGEO) are direct functional equivalents to RCS2012F821CS, matching all core electrical parameters and power rating. Both parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature range. AC0805FR-07820RL includes Automotive AEC-Q200 certification, while RC0805FR-07820RL provides moisture-resistant construction without automotive qualification. CRCW0805820RFKEA (Vishay Dale) offers equivalent specifications with reduced maximum seated height (0.50mm vs 0.66mm), suitable for space-constrained applications.

Higher Power Alternatives (0.5W, ±1% Tolerance):

CRCW0805820RFKEAHP (Vishay Dale), ERJ-UP6F8200V (Panasonic), and RCS0805820RFKEA (Vishay Dale) provide 0.5W power rating within identical 0805 package, enabling higher power dissipation in the same footprint. All three maintain ±1% tolerance, ROHS3 compliance, and -55°C to 155°C operating range. ERJ-UP6F8200V includes anti-sulfur feature matching the main part. These alternatives support applications requiring increased thermal headroom without package redesign.

Higher Precision Alternative (0.5W, ±0.5% Tolerance):

ERJ-P06D8200V (Panasonic) offers tighter ±0.5% tolerance with 0.5W power rating for precision circuit applications. This part maintains all core compliance requirements and operating specifications while providing enhanced resistance accuracy.

Automotive Applications:

AC0805FR-07820RL, CRCW0805820RFKEA, CRCW0805820RFKEAHP, ERJ-6ENF8200V, ERJ-P06D8200V, ERJ-UP6F8200V, and RCS0805820RFKEA all carry Automotive AEC-Q200 certification, qualifying these parts for automotive-grade circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can AC0805FR-07820RL directly replace RCS2012F821CS in production?

A: Yes. AC0805FR-07820RL matches all critical electrical parameters: 820 Ohm resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both parts are ROHS3 compliant with MSL 1 rating. Physical dimensions are compatible (0.079" L x 0.049" W), with AC0805FR-07820RL seated height of 0.60mm versus RCS2012F821CS at 0.66mm, presenting no assembly interference.

Q: What is the difference between 0.125W and 0.5W rated substitutes?

A: Power rating indicates maximum continuous power dissipation capability. The 0.125W (1/8W) rated parts (AC0805FR-07820RL, RC0805FR-07820RL, CRCW0805820RFKEA, ERJ-6ENF8200V) match the main part specification. The 0.5W (1/2W) rated alternatives (CRCW0805820RFKEAHP, ERJ-P06D8200V, ERJ-UP6F8200V, RCS0805820RFKEA) provide four times greater power dissipation within the same 0805 package footprint. Selection depends on circuit power requirements; higher-rated parts are not required for applications within 0.125W dissipation limits but provide design margin for higher-power applications.

Q: Are all substitute parts automotive qualified?

A: No. AC0805FR-07820RL, CRCW0805820RFKEA, CRCW0805820RFKEAHP, ERJ-6ENF8200V, ERJ-P06D8200V, ERJ-UP6F8200V, and RCS0805820RFKEA carry Automotive AEC-Q200 certification. RC0805FR-07820RL and RCS2012F821CS do not list AEC-Q200 qualification. Automotive applications must specify AEC-Q200 certified alternatives.

Q: What does ±0.5% tolerance mean compared to ±1%?

A: Tolerance specifies the maximum deviation from nominal resistance value. ±1% tolerance allows ±8.2 Ohms deviation from 820 Ohms (range: 811.8–828.2 Ohms). ±0.5% tolerance (ERJ-P06D8200V) restricts deviation to ±4.1 Ohms (range: 815.9–824.1 Ohms). Higher precision is required for precision analog circuits, measurement instrumentation, and reference networks. Standard ±1% parts are suitable for general-purpose filtering, biasing, and termination applications.

Q: Can RCS2012F821CS be replaced with a higher power-rated part without circuit modification?

A: Yes, within the same 0805 package. Higher power-rated substitutes (0.5W alternatives) are physically compatible and electrically interchangeable for 820 Ohm ±1% applications. The higher power rating provides additional thermal margin without affecting circuit function. No PCB layout or schematic changes are required. However, verify that the substitute part's maximum seated height (0.50–0.70mm range) does not exceed assembly clearance specifications for your application.

Q: What is the significance of anti-sulfur and moisture-resistant features?

A: Anti-sulfur construction protects against corrosion from atmospheric sulfur compounds, extending component reliability in industrial and harsh environments. Moisture-resistant thick film composition reduces susceptibility to humidity-induced resistance drift and leakage. RCS2012F821CS includes both features. ERJ-UP6F8200V also includes anti-sulfur protection. These features are beneficial for long-term reliability but not mandatory for standard indoor applications with controlled environmental conditions.

Q: Are all parts in this list ROHS3 compliant?

A: Yes. All listed parts, including RCS2012F821CS and all substitute options, are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. This ensures compatibility with lead-free soldering processes and compliance with environmental regulations across all major markets.