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RCS2012J8R2CS Equivalent & Substitute Parts
Part Overview
The RCS2012J8R2CS is an 8.2 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and features anti-sulfur and moisture-resistant construction. The part is currently in active production status with 825 units available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.
Substiute Parts
Key Parameters
| Parameter | Value | Specification |
|---|---|---|
| Resistance | 8.2 Ohms | Primary electrical characteristic |
| Tolerance | ±5% | Acceptable variance from nominal value |
| Power Rating | 0.125W (1/8W) | Maximum power dissipation capability |
| Package / Case | 0805 (2012 Metric) | Physical form factor and footprint |
| Composition | Thick Film | Resistive element construction type |
| Operating Temperature Range | -55°C ~ 155°C | Functional temperature limits |
| Temperature Coefficient | ±300ppm/°C | Resistance stability over temperature |
| RoHS Status | ROHS3 Compliant | Environmental and regulatory compliance |
| Moisture Sensitivity Level | 1 (Unlimited) | Moisture handling classification |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012J8R2CS is determined by strict adherence to the following parameters:
Critical Matching Parameters:
- Resistance value: 8.2 Ohms (exact match required)
- Package / Case: 0805 (2012 Metric) (exact match required)
- Power rating: 0.125W minimum (equal or greater acceptable)
- Operating temperature range: -55°C ~ 155°C minimum (equal or greater range acceptable)
- Composition: Thick Film (exact match required)
- RoHS Status: ROHS3 Compliant (minimum requirement)
- Moisture Sensitivity Level: 1 (Unlimited) (equal or lower MSL acceptable)
Flexible Parameters:
- Tolerance: May be tighter (lower value) than ±5%
- Temperature coefficient: May be tighter (lower value) than ±300ppm/°C
- Packaging format: Tape & Reel (TR) or Cut Tape (CT) are both acceptable
- Specific features: Anti-sulfur feature is optional in substitutes
The RC2012F8R2CS meets all critical matching parameters and qualifies as a direct substitute.
Parameter Comparison
| Parameter | RCS2012J8R2CS (Main Part) | RC2012F8R2CS (Substitute) | Compatibility |
|---|---|---|---|
| Manufacturer | Samsung Electro-Mechanics | Samsung Electro-Mechanics | Same manufacturer |
| Resistance | 8.2 Ohms | 8.2 Ohms | Exact match |
| Tolerance | ±5% | ±1% | Substitute is tighter |
| Power Rating | 0.125W (1/8W) | 0.125W (1/8W) | Exact match |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | Exact match |
| Composition | Thick Film | Thick Film | Exact match |
| Temperature Coefficient | ±300ppm/°C | ±300ppm/°C | Exact match |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | Exact match |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | Exact match |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.026" (0.65mm) | Compatible |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Exact match |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Exact match |
| REACH Status | REACH Unaffected | REACH Unaffected | Exact match |
| Packaging Format | Tape & Reel (TR) | Cut Tape (CT) | Different format, same component |
Engineering Selection Recommendations
The RC2012F8R2CS is a qualified substitute for the RCS2012J8R2CS based on the following engineering criteria:
Electrical Equivalence: Both parts maintain identical resistance value (8.2 Ohms), power rating (0.125W), operating temperature range (-55°C ~ 155°C), and temperature coefficient (±300ppm/°C). The substitute features a tighter tolerance specification (±1% versus ±5%), which provides improved accuracy without introducing incompatibility.
Mechanical Compatibility: Both components utilize the 0805 (2012 Metric) package with identical footprint dimensions (2.00mm x 1.25mm). Seated height specifications are within 0.01mm of each other, ensuring compatibility with standard PCB assembly processes and design layouts.
Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity classification. These certifications are equivalent and satisfy identical environmental and regulatory requirements.
Packaging Consideration: The main part is supplied in Tape & Reel (TR) format while the substitute is available in Cut Tape (CT) format. This difference affects procurement and assembly logistics but does not impact electrical or mechanical performance.
Product Status: Both components are in active production status, ensuring long-term availability and supply chain stability.
Frequently Asked Questions (FAQ)
Q: Can RC2012F8R2CS be used as a direct replacement for RCS2012J8R2CS in circuit design?
A: Yes. Both parts share identical electrical specifications for resistance value, power rating, operating temperature range, and temperature coefficient. The 0805 package footprint is identical, enabling direct PCB layout substitution without design modification.
Q: What is the significance of the tolerance difference (±5% versus ±1%)?
A: The RC2012F8R2CS tolerance of ±1% is tighter than the RCS2012J8R2CS tolerance of ±5%. This means the substitute part maintains closer adherence to the nominal 8.2 Ohm value. In applications where resistance accuracy is critical, the substitute provides superior performance. In applications where ±5% tolerance is acceptable, the substitute remains fully compatible.
Q: Are there differences in anti-sulfur or moisture-resistant properties?
A: The RCS2012J8R2CS explicitly includes anti-sulfur and moisture-resistant features. The RC2012F8R2CS specifies moisture-resistant construction but does not list anti-sulfur as a feature. Both parts maintain MSL 1 (Unlimited) classification. For applications requiring anti-sulfur protection, verify environmental exposure conditions before substitution.
Q: Does the packaging format difference (Tape & Reel versus Cut Tape) affect component performance?
A: No. Packaging format affects procurement, storage, and assembly logistics but does not impact electrical or mechanical performance. Both formats contain identical components with identical specifications.
Q: Are both parts suitable for high-temperature applications?
A: Yes. Both parts operate across the identical temperature range of -55°C to 155°C with a temperature coefficient of ±300ppm/°C. This specification supports applications in industrial, automotive, and aerospace environments within the stated temperature limits.
Q: What is the inventory status for each part?
A: RCS2012J8R2CS has 825 units in stock. RC2012F8R2CS has 1152 units in stock. Both parts are in active production status.
Q: Are both parts compliant with current environmental regulations?
A: Yes. Both parts are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.
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