RC2012J685CS 6.8 MOhm 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012J685CS is a 6.8 MOhm thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component operates at 0.125W (1/8W) power rating with ±5% tolerance and moisture-resistant construction. The part is currently active in production with 986 pieces available in inventory. Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative packaging formats are required, or when enhanced specifications such as tighter tolerance or automotive qualification are needed for specific applications.

Substiute Parts

RC2012J685CS

Samsung Electro-MechanicsIn Stock: 1007RC2012J685CS Datasheet

Current PartRFQ

RC0805JR-076M8L

YAGEOIn Stock: 12599RC0805JR-076M8L Datasheet

DirectRFQ

MCR10ERTJ685

Rohm SemiconductorIn Stock: 4105MCR10ERTJ685 Datasheet

UpgradeRFQ

RC0805FR-076M8L

YAGEOIn Stock: 14279RC0805FR-076M8L Datasheet

UpgradeRFQ

RMCF0805FT6M80

Stackpole Electronics IncIn Stock: 5434RMCF0805FT6M80 Datasheet

UpgradeRFQ

RMCF0805JT6M80

Stackpole Electronics IncIn Stock: 6779RMCF0805JT6M80 Datasheet

UpgradeRFQ

CRCW08056M80FKEA

Vishay DaleIn Stock: 21626CRCW08056M80FKEA Datasheet

SimilarRFQ

RCV08056M80FKEA

Vishay DaleIn Stock: 25980RCV08056M80FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC2012J685CS is based on the following criteria:

Direct Equivalents (Same Specifications): Parts with identical resistance (6.8 MOhms), tolerance (±5%), power rating (0.125W), package (0805), composition (thick film), and operating temperature range (-55°C ~ 155°C). These parts are interchangeable without circuit redesign.

Upgrade Substitutes (Enhanced Tolerance): Parts with tighter tolerance (±1% instead of ±5%) while maintaining all other core specifications. These provide improved accuracy and are forward-compatible with designs requiring higher precision.

Upgrade Substitutes (Automotive Qualification): Parts with AEC-Q200 automotive qualification, maintaining core electrical specifications but adding reliability certification for automotive applications.

Similar Substitutes (Alternative Features): Parts with identical electrical specifications but different feature sets such as high voltage construction or alternative temperature coefficients. These are suitable when specific application requirements align with the alternative features.

Key Parameters Determining Substitutability:

• Resistance value: 6.8 MOhms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Power rating: 0.125W minimum (equal or higher acceptable)
• Tolerance: ±5% minimum (tighter tolerance acceptable)
• Operating temperature: -55°C ~ 155°C (must support or exceed)
• Composition: Thick film (must match)
• RoHS compliance: ROHS3 (must maintain)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification Required): RC0805JR-076M8L (YAGEO) is the primary direct equivalent. It maintains identical electrical specifications, tolerance, and moisture-resistant features as the RC2012J685CS. Both parts are active in production with substantial inventory availability (12,506 pieces for YAGEO part). This part is suitable for immediate substitution in existing designs.

For Applications Requiring Tighter Tolerance: RC0805FR-076M8L (YAGEO) or CRCW08056M80FKEA (Vishay Dale) provide ±1% tolerance while maintaining all other core specifications. RC0805FR-076M8L offers moisture-resistant construction identical to the original part. CRCW08056M80FKEA adds automotive AEC-Q200 qualification. Both are active products with high inventory levels.

For Automotive Applications: RMCF0805FT6M80 (Stackpole Electronics Inc, ±1% tolerance) or RMCF0805JT6M80 (Stackpole Electronics Inc, ±5% tolerance) provide AEC-Q200 automotive qualification. Both maintain the required electrical specifications and operating temperature range. RMCF0805JT6M80 matches the original ±5% tolerance specification.

For High Voltage Applications: RCV08056M80FKEA (Vishay Dale) is specified with high voltage construction while maintaining ±1% tolerance and identical electrical parameters. This part is suitable when high voltage performance is required.

Parts to Avoid: MCR10ERTJ685 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs despite current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can RC0805JR-076M8L replace RC2012J685CS directly without any circuit changes?

A: Yes. RC0805JR-076M8L is a direct equivalent with identical resistance (6.8 MOhms), tolerance (±5%), power rating (0.125W), package (0805), composition (thick film), operating temperature range (-55°C ~ 155°C), and moisture-resistant features. No circuit modifications are required.

Q: What is the difference between ±5% and ±1% tolerance parts?

A: Tolerance defines the acceptable variation from the nominal resistance value. A ±5% part on a 6.8 MOhm resistor can vary between 6.46 MOhms and 7.14 MOhms. A ±1% part varies between 6.732 MOhms and 6.868 MOhms. Tighter tolerance (±1%) provides greater accuracy and is suitable for precision circuits. Parts with ±1% tolerance are upgrade-compatible with designs originally specified for ±5%.

Q: Are all substitute parts in the same 0805 package?

A: Yes. All listed substitute parts use the 0805 (2012 Metric) package format with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Physical board layout compatibility is maintained across all substitutes.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts with this certification have undergone rigorous testing for reliability in automotive environments. RMCF0805FT6M80, RMCF0805JT6M80, and CRCW08056M80FKEA carry this qualification and are suitable for automotive applications.

Q: Can I use a part with ±1% tolerance in a design specified for ±5%?

A: Yes. A ±1% tolerance part is more precise than required and is fully compatible with designs specified for ±5% tolerance. The tighter tolerance provides improved circuit performance without introducing incompatibility.

Q: What is the difference between moisture-resistant and standard thick film construction?

A: Moisture-resistant construction provides enhanced protection against humidity and environmental moisture ingress. RC2012J685CS and RC0805JR-076M8L both feature moisture-resistant construction. Parts without this specification may require additional protective measures in humid environments.

Q: Why is MCR10ERTJ685 listed as discontinued?

A: MCR10ERTJ685 is marked as discontinued at DiGi Electronics, indicating it is no longer actively supported by the primary distributor. While inventory may still be available, new designs should not rely on this part due to long-term availability uncertainty.

Q: What is the temperature coefficient and why does it matter?

A: Temperature coefficient (ppm/°C) indicates how much the resistance changes with temperature. RC2012J685CS has ±100ppm/°C, meaning resistance changes approximately 0.01% per degree Celsius. Some substitutes have ±200ppm/°C, indicating twice the temperature sensitivity. For applications with wide temperature ranges or high precision requirements, lower temperature coefficients are preferable.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring compatibility with environmental and regulatory requirements for lead-free and restricted substance standards.