RC3216J685CS 6.8 MOhms ±5% 1/4W 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC3216J685CS is a 6.8 MOhms thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component is rated for 0.25W power dissipation with ±5% tolerance and moisture-resistant construction. The part is currently active in production with 776 units in stock inventory.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements demand enhanced specifications such as tighter tolerance or automotive qualification, or when supply chain optimization requires alternative sourcing from qualified manufacturers.

Substiute Parts

RC3216J685CS

Samsung Electro-MechanicsIn Stock: 792RC3216J685CS Datasheet

Current PartRFQ

RC1206JR-076M8L

YAGEOIn Stock: 10758RC1206JR-076M8L Datasheet

DirectRFQ

MCR18ERTJ685

Rohm SemiconductorIn Stock: 5933MCR18ERTJ685 Datasheet

UpgradeRFQ

RC1206FR-076M8L

YAGEOIn Stock: 23563RC1206FR-076M8L Datasheet

UpgradeRFQ

RMCF1206FT6M80

Stackpole Electronics IncIn Stock: 824RMCF1206FT6M80 Datasheet

UpgradeRFQ

RMCF1206JT6M80

Stackpole Electronics IncIn Stock: 2854RMCF1206JT6M80 Datasheet

UpgradeRFQ

CRCW12066M80FKEA

Vishay DaleIn Stock: 15493CRCW12066M80FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution relationships for the RC3216J685CS are established based on the following criteria:

Direct Equivalents (Same Specifications): Parts that maintain identical resistance value (6.8 MOhms), tolerance (±5%), power rating (0.25W), package format (1206), composition (thick film), and operating temperature range (-55°C ~ 155°C) are classified as direct equivalents. These parts are interchangeable without design modification.

Upgrade Substitutes (Enhanced Specifications): Parts that exceed the original specifications in tolerance (±1% versus ±5%) or include automotive qualification (AEC-Q200) are classified as upgrades. These parts are electrically and mechanically compatible but offer improved performance characteristics. Upgrades maintain the same resistance value, power rating, package, and operating temperature range.

Similar Parts (Minor Dimensional Variance): Parts with identical electrical specifications but minor variations in physical dimensions (length, width, or height within manufacturing tolerances) are classified as similar. These parts function identically in circuit applications while accommodating different PCB layout constraints.

Key Parameters Determining Substitutability:

• Resistance value: 6.8 MOhms (fixed)
• Power rating: 0.25W (fixed)
• Package: 1206 (3216 Metric) (fixed)
• Operating temperature: -55°C ~ 155°C (fixed)
• Tolerance: ±5% minimum (±1% acceptable as upgrade)
• Composition: Thick film (fixed)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required):

RC1206JR-076M8L (YAGEO) is the primary direct equivalent. This part maintains all electrical and mechanical specifications of the RC3216J685CS while offering higher inventory availability (10,685 units) and active product status. Both parts feature moisture-resistant thick film construction with ±100 ppm/°C temperature coefficient and identical operating temperature range.

For Applications Requiring Tighter Tolerance:

RC1206FR-076M8L (YAGEO) and CRCW12066M80FKEA (Vishay Dale) both provide ±1% tolerance as an upgrade specification. RC1206FR-076M8L maintains the ±100 ppm/°C temperature coefficient and moisture-resistant features of the original part. CRCW12066M80FKEA adds automotive AEC-Q200 qualification with ±100 ppm/°C temperature coefficient, suitable for automotive applications requiring enhanced reliability.

For Automotive Applications:

RMCF1206FT6M80 and RMCF1206JT6M80 (Stackpole Electronics Inc) both carry AEC-Q200 automotive qualification. RMCF1206JT6M80 maintains the ±5% tolerance specification of the original part while adding automotive-grade reliability. RMCF1206FT6M80 provides ±1% tolerance with automotive qualification for applications demanding both precision and automotive reliability standards.

Parts to Avoid:

MCR18ERTJ685 (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 RC1206JR-076M8L replace RC3216J685CS directly without PCB layout changes?

A: Yes. RC1206JR-076M8L is a direct equivalent with identical electrical specifications (6.8 MOhms, ±5%, 0.25W) and package format (1206). Physical dimensions are within manufacturing tolerances (3.10mm L × 1.60mm W versus 3.20mm L × 1.60mm W), requiring no PCB layout modification.

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

A: Tolerance specifies the maximum deviation from the nominal resistance value. ±5% tolerance allows deviation up to ±340 kOhms from 6.8 MOhms. ±1% tolerance restricts deviation to ±68 kOhms. Applications requiring precise resistance values benefit from ±1% parts. Standard applications function identically with either tolerance.

Q: Are automotive-qualified parts (AEC-Q200) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts exceed standard reliability requirements and are fully compatible with non-automotive applications. AEC-Q200 qualification indicates enhanced testing, screening, and quality assurance processes. Using automotive-qualified parts in non-automotive applications provides additional reliability margin without functional impact.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 indicates the component requires no special moisture protection during storage or handling. The part can be stored in standard conditions without desiccant packaging or controlled humidity environments. All listed substitute parts carry MSL 1 rating.

Q: Can I use RMCF1206FT6M80 (±1%, AEC-Q200) as a substitute for RC3216J685CS (±5%, standard)?

A: Yes. RMCF1206FT6M80 is a functional upgrade. It maintains the same resistance value (6.8 MOhms), power rating (0.25W), package (1206), and operating temperature range (-55°C ~ 155°C). The ±1% tolerance and AEC-Q200 qualification represent enhanced specifications. No circuit redesign is required.

Q: Why do some parts list ±100 ppm/°C and others ±200 ppm/°C temperature coefficient?

A: Temperature coefficient indicates resistance change per degree Celsius within the operating range. ±100 ppm/°C represents tighter temperature stability than ±200 ppm/°C. For most applications, both values are acceptable. Applications with strict temperature-dependent performance requirements benefit from ±100 ppm/°C parts.

Q: Is packaging format (Tape & Reel versus Bulk) a substitution factor?

A: Packaging format affects supply chain logistics and handling but not electrical or mechanical compatibility. Tape & Reel packaging is standard for automated assembly. Bulk packaging is suitable for manual assembly or lower-volume applications. Both formats contain identical components.

Q: What does ROHS3 Compliant mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component contains no lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers above specified thresholds. All listed parts are ROHS3 compliant, meeting environmental and regulatory requirements for EU and global markets.