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RCS2012F8451CS Equivalent & Substitute Parts
Part Overview
The RCS2012F8451CS is an 8.45 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant properties. The part is RoHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating.
Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 8.45 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Number of Terminations | 2 |
| RoHS Status | RoHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Packaging | Tape & Reel (TR) |
Substitute Part Grouping Explanation
Substitution eligibility for the RCS2012F8451CS is determined by strict alignment of the following parameters:
Electrical Parameters (Critical):
- Resistance value: 8.45 kOhms
- Tolerance: ±1%
- Power rating: 0.125W (1/8W)
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
Mechanical Parameters (Critical):
- Package type: 0805 (2012 Metric)
- Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
- Number of terminations: 2
- Packaging format: Tape & Reel (TR)
Compliance Parameters (Required):
- RoHS3 compliance
- MSL Level 1 (Unlimited)
- REACH Unaffected status
All identified substitute parts meet these criteria across electrical, mechanical, and compliance dimensions. Variations in height-seated measurements and specific feature sets (such as automotive AEC-Q200 qualification) do not disqualify substitution eligibility when core parameters align.
Parameter Comparison
| Parameter | RCS2012F8451CS (Samsung) | CRCW08058K45FKEA (Vishay Dale) | ERJ-6ENF8451V (Panasonic) | RC0805FR-078K45L (YAGEO) | RMCF0805FT8K45 (Stackpole) |
|---|---|---|---|---|---|
| Resistance | 8.45 kOhms | 8.45 kOhms | 8.45 kOhms | 8.45 kOhms | 8.45 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| 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) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Height - Seated (Max) | 0.026" (0.66mm) | 0.020" (0.50mm) | 0.028" (0.70mm) | 0.024" (0.60mm) | 0.026" (0.65mm) |
| Number of Terminations | 2 | 2 | 2 | 2 | 2 |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
All four substitute parts are qualified equivalents to the RCS2012F8451CS based on alignment of electrical specifications, mechanical dimensions, and regulatory compliance.
CRCW08058K45FKEA (Vishay Dale): Active product status with AEC-Q200 automotive qualification. RoHS3 compliant. Height-seated measurement of 0.020" (0.50mm) represents the lowest profile among alternatives. Suitable for applications requiring automotive-grade reliability.
ERJ-6ENF8451V (Panasonic Electronic Components): Active product status with AEC-Q200 automotive qualification. RoHS3 compliant. Highest inventory availability (56,241 pcs). Height-seated measurement of 0.028" (0.70mm). Suitable for high-volume procurement and automotive applications.
RC0805FR-078K45L (YAGEO): Active product status with moisture-resistant properties matching the original component. RoHS3 compliant. Height-seated measurement of 0.024" (0.60mm). Suitable for general industrial applications with moisture exposure considerations.
RMCF0805FT8K45 (Stackpole Electronics Inc): Active product status with AEC-Q200 automotive qualification. RoHS3 compliant. Height-seated measurement of 0.026" (0.65mm), matching the original component specification. Suitable for automotive and industrial applications.
All parts carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications, confirming regulatory equivalence.
Frequently Asked Questions (FAQ)
Q: Can CRCW08058K45FKEA replace RCS2012F8451CS in any application?
A: CRCW08058K45FKEA meets all electrical and mechanical substitution criteria. The lower height-seated measurement (0.020" vs 0.026") may affect PCB layout clearance in space-constrained designs. Verify board-level clearance before implementation.
Q: What is the difference between automotive-qualified and non-automotive-qualified substitutes?
A: CRCW08058K45FKEA, ERJ-6ENF8451V, and RMCF0805FT8K45 carry AEC-Q200 automotive qualification. RC0805FR-078K45L does not. AEC-Q200 qualification indicates compliance with automotive reliability and environmental stress testing standards. Selection depends on application requirements.
Q: Are all substitutes available in Tape & Reel packaging?
A: All identified substitutes are supplied in Tape & Reel (TR) packaging format, matching the original component specification.
Q: Do height differences between substitutes affect PCB assembly?
A: Height-seated measurements range from 0.020" (0.50mm) to 0.028" (0.70mm). Variations of this magnitude typically do not affect standard PCB assembly processes. Verify specific assembly equipment specifications if height tolerance is critical.
Q: Are all substitutes RoHS3 compliant?
A: All identified substitutes are RoHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original component compliance profile.
Q: Can substitutes be mixed within a single production batch?
A: All substitutes meet identical electrical specifications (8.45 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C). Mechanical compatibility is confirmed across all alternatives. Mixed sourcing is permissible from an engineering standpoint; verify procurement and traceability requirements with quality assurance procedures.
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