RC1005J684CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005J684CS is a 680 kOhms ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.063W (1/16W) in 0402 (1005 Metric) package format. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is supplied in Tape & Reel packaging with 959 units currently in stock.

Equivalent and substitute parts are identified when designs require alternative sourcing due to supply constraints, manufacturing discontinuation, or performance specification upgrades while maintaining functional compatibility within the same electrical and mechanical parameter boundaries.

Substiute Parts

RC1005J684CS

Samsung Electro-MechanicsIn Stock: 1021RC1005J684CS Datasheet

Current PartRFQ

RC1005F684CS

Samsung Electro-MechanicsIn Stock: 1286RC1005F684CS Datasheet

UpgradeRFQ

RC0402JR-07680KL

YAGEOIn Stock: 165655RC0402JR-07680KL Datasheet

DirectRFQ

ERJ-2RKF6803X

Panasonic Electronic ComponentsIn Stock: 83605ERJ-2RKF6803X Datasheet

UpgradeRFQ

AC0402JR-07680KL

YAGEOIn Stock: 20756AC0402JR-07680KL Datasheet

SimilarRFQ

RMCF0402JT680K

Stackpole Electronics IncIn Stock: 4653RMCF0402JT680K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution relationships for the RC1005J684CS are established based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Mandatory Matching Parameters:

• Resistance value: 680 kOhms (exact match required)
• Package / Case: 0402 (1005 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: ±5% (main specification) or ±1% (upgrade specification)
• Power Rating: 0.063W (1/16W) or 0.1W (1/10W) (equal or higher rating acceptable)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) (both acceptable)
• Manufacturer: Samsung Electro-Mechanics, YAGEO, Panasonic Electronic Components, or Stackpole Electronics Inc

Substitute parts are categorized as follows:

Upgrade Category: Parts with improved tolerance (±1% vs ±5%) or higher power rating (0.1W vs 0.063W) while maintaining all other core parameters.

Direct Equivalent Category: Parts with identical electrical specifications and tolerance from alternative manufacturers.

Similar Category: Parts with automotive AEC-Q200 qualification added to the base specification, maintaining all electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

RC1005F684CS (Samsung Electro-Mechanics): Select this upgrade substitute when circuit design tolerances require ±1% accuracy instead of ±5%. Maintains identical power rating, package, and thermal characteristics. Available in Cut Tape format; verify tape reel availability if automated assembly is required.

RC0402JR-07680KL (YAGEO): Direct equivalent substitute with identical electrical specifications and tolerance. Highest inventory availability (165,586 units) ensures supply continuity. Maintains all compliance certifications and operating parameters. Recommended for high-volume production substitution.

ERJ-2RKF6803X (Panasonic Electronic Components): Upgrade substitute offering both improved tolerance (±1%) and higher power rating (0.1W vs 0.063W). Includes automotive AEC-Q200 qualification, suitable for automotive and harsh environment applications. Thermal margin improvement allows operation in higher dissipation scenarios.

AC0402JR-07680KL (YAGEO): Similar substitute with automotive AEC-Q200 qualification while maintaining original ±5% tolerance and 0.063W power rating. Appropriate for automotive-grade designs requiring equivalent performance with enhanced reliability qualification.

RMCF0402JT680K (Stackpole Electronics Inc): Similar substitute with automotive AEC-Q200 qualification and identical electrical specifications to the main part. Lower inventory (4,580 units) compared to YAGEO alternatives. Suitable for automotive applications requiring AEC-Q200 compliance.

All listed substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C to 155°C operating temperature range. Selection should be based on tolerance requirements, automotive qualification necessity, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can RC1005F684CS replace RC1005J684CS in any circuit application?

A: RC1005F684CS is a direct upgrade substitute with improved ±1% tolerance versus the original ±5% tolerance. It maintains identical power rating (0.063W), package (0402), and operating temperature range (-55°C ~ 155°C). Substitution is valid for all applications where the original part is specified, with the benefit of tighter tolerance performance.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both packaging formats contain identical components with the same electrical and mechanical specifications. Tape & Reel (TR) format is supplied on continuous carrier tape suitable for automated pick-and-place assembly equipment. Cut Tape (CT) format is supplied as individual tape segments. Selection depends on assembly process requirements; automated lines typically require Tape & Reel format.

Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts (AC0402JR-07680KL, ERJ-2RKF6803X, RMCF0402JT680K) meet or exceed the electrical and reliability specifications of non-automotive equivalents. These parts can be used in any application where the original RC1005J684CS is specified. AEC-Q200 qualification indicates enhanced reliability testing and qualification, making these parts suitable for demanding environments beyond automotive use.

Q: What does MSL 1 (Unlimited) moisture sensitivity level mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. The component does not require dry-pack storage, desiccant, or moisture barrier bags. All listed substitute parts maintain MSL 1 rating, ensuring identical handling requirements.

Q: Can ERJ-2RKF6803X (0.1W) be used where RC1005J684CS (0.063W) is specified?

A: Yes. The ERJ-2RKF6803X has a higher power rating (0.1W vs 0.063W), which provides additional thermal margin and is fully compatible with applications designed for 0.063W components. The higher power rating does not create compatibility issues; it only provides improved thermal performance. This substitution is valid for all circuit applications.

Q: How do I verify that a substitute part is compatible with my circuit design?

A: Verify the following parameters match or exceed the original specification: (1) Resistance value must be exactly 680 kOhms, (2) Tolerance must be ±5% or better (±1% is acceptable), (3) Package must be 0402 (1005 Metric), (4) Power rating must be 0.063W or higher, (5) Operating temperature range must include -55°C to 155°C. All listed substitutes meet these criteria.

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

A: Temperature coefficient ±100ppm/°C indicates the resistor value changes by a maximum of 100 parts per million for each degree Celsius change in operating temperature. All listed substitutes maintain this specification, ensuring consistent resistance stability across the -55°C to 155°C operating range. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q: Is ROHS3 compliance important for my application?

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. All listed substitutes are ROHS3 compliant. Compliance is mandatory for products sold in the European Union and increasingly required by global supply chain standards.