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RC2012J182CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012J182CS is a 1.8 kOhms ±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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).
Equivalent and substitute parts are necessary when the original RC2012J182CS becomes unavailable due to supply constraints, extended lead times, or manufacturing discontinuation. Alternative components meeting identical or enhanced electrical and mechanical specifications enable design continuity and production scheduling flexibility.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Resistance Value | 1.8 kOhms | Core functional requirement |
| Tolerance | ±5% | Minimum acceptable tolerance for direct substitution |
| Power Rating | 0.125W (1/8W) | Thermal design requirement |
| Package / Case | 0805 (2012 Metric) | PCB footprint and assembly compatibility |
| Composition | Thick Film | Technology type and performance characteristics |
| Operating Temperature Range | -55°C to 155°C | Environmental operating limits |
| Temperature Coefficient | ±100ppm/°C | Stability specification |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | Handling and storage requirements |
| RoHS Compliance | ROHS3 Compliant | Environmental and regulatory requirement |
Substitute Part Grouping Explanation
Substitute parts for the RC2012J182CS are categorized into three groups based on electrical parameter alignment:
Direct Substitutes (Equivalent Tolerance): Parts maintaining ±5% tolerance with identical 1.8 kOhms resistance, 0.125W power rating, and 0805 package. These components are electrically and mechanically interchangeable without circuit redesign. The direct substitute identified is RC0805JR-071K8L (YAGEO), which matches all core parameters including moisture resistance and MSL Level 1 classification.
Upgrade Substitutes (Enhanced Tolerance): Parts with improved ±1% tolerance while maintaining 1.8 kOhms resistance, 0.125W power rating, and 0805 package. These components provide superior accuracy and stability compared to the original ±5% specification. Upgrade substitutes include AC0805FR-071K8L (YAGEO), CRG0805F1K8 (TE Connectivity), ERJ-6ENF1801V (Panasonic), KTR10EZPF1801 (Rohm), RC0805FR-071K8L (YAGEO), and RMCF0805FT1K80 (Stackpole). Many upgrade options include automotive AEC-Q200 certification, providing additional qualification for demanding applications.
Similar Parts (Tolerance or Power Variation): Parts with modified specifications that require circuit evaluation. AC0805JR-071K8L maintains ±5% tolerance with automotive AEC-Q200 rating. CRCW08051K80FKEA provides ±1% tolerance with AEC-Q200 certification. CRCW08051K80FKEAHP offers ±1% tolerance but with increased 0.5W (1/2W) power rating, requiring thermal design verification.
Critical Substitution Parameters:
- Resistance value: 1.8 kOhms (non-negotiable)
- Package: 0805 (2012 Metric) (non-negotiable for PCB compatibility)
- Power rating: Minimum 0.125W (higher ratings acceptable with thermal review)
- Tolerance: ±5% minimum (±1% acceptable as upgrade)
- Operating temperature: -55°C to 155°C minimum
- Composition: Thick Film
- RoHS3 compliance required
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | MSL | RoHS | Packaging Type | Substitution Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RC2012J182CS | Samsung Electro-Mechanics | 1.8 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Main Part |
| RC0805JR-071K8L | YAGEO | 1.8 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Cut Tape & Digi-Reel | Direct |
| AC0805FR-071K8L | YAGEO | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Upgrade |
| CRG0805F1K8 | TE Connectivity | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Upgrade |
| ERJ-6ENF1801V | Panasonic Electronic Components | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Cut Tape & Digi-Reel | Upgrade |
| KTR10EZPF1801 | Rohm Semiconductor | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Upgrade |
| RC0805FR-071K8L | YAGEO | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Cut Tape & Digi-Reel | Upgrade |
| RMCF0805FT1K80 | Stackpole Electronics Inc | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Upgrade |
| AC0805JR-071K8L | YAGEO | 1.8 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Similar |
| CRCW08051K80FKEA | Vishay Dale | 1.8 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Cut Tape & Digi-Reel | Similar |
| CRCW08051K80FKEAHP | Vishay Dale | 1.8 kΩ | ±1% | 0.5 | 0805 | ±100ppm/°C | -55 to 155°C | 1 | ROHS3 | Tape & Reel | Similar |
Engineering Selection Recommendations
For Direct Replacement (No Circuit Modification Required):
RC0805JR-071K8L (YAGEO) is the primary direct substitute. This component maintains identical electrical specifications (1.8 kOhms ±5%, 0.125W) and mechanical compatibility (0805 package). Both parts share RoHS3 compliance, MSL Level 1 classification, and moisture-resistant thick film construction. The part is available in higher inventory (122,411 pcs) compared to the original RC2012J182CS (889 pcs), providing supply security. Packaging differs (Cut Tape & Digi-Reel versus Tape & Reel), which may affect procurement logistics but does not impact electrical or mechanical performance.
For Enhanced Performance (Tolerance Upgrade):
When circuit design permits improved tolerance specifications, six upgrade options provide ±1% accuracy:
AC0805FR-071K8L (YAGEO) combines ±1% tolerance with automotive AEC-Q200 certification, suitable for applications requiring enhanced reliability. CRG0805F1K8 (TE Connectivity) offers ±1% tolerance with established Neohm series performance. ERJ-6ENF1801V (Panasonic) and RMCF0805FT1K80 (Stackpole) both include AEC-Q200 automotive qualification. KTR10EZPF1801 (Rohm) provides ±1% tolerance with AEC-Q200 and high-voltage features. RC0805FR-071K8L (YAGEO) delivers ±1% tolerance with moisture resistance matching the original part's environmental protection.
All upgrade substitutes maintain the -55°C to 155°C operating range, ±100ppm/°C temperature coefficient, and RoHS3 compliance. Inventory availability ranges from 1,743 pcs (KTR10EZPF1801) to 138,633 pcs (RMCF0805FT1K80).
For Applications Requiring Automotive Qualification:
AC0805JR-071K8L (YAGEO), ERJ-6ENF1801V (Panasonic), KTR10EZPF1801 (Rohm), RMCF0805FT1K80 (Stackpole), and CRCW08051K80FKEA (Vishay Dale) all carry AEC-Q200 automotive certification. These parts are suitable for automotive, industrial, and mission-critical applications where qualification documentation is mandatory.
For Applications with Elevated Power Dissipation:
CRCW08051K80FKEAHP (Vishay Dale) provides 0.5W (1/2W) power rating while maintaining 1.8 kOhms ±1% resistance in 0805 package. This variant is appropriate when thermal analysis indicates the standard 0.125W rating is insufficient. The part includes AEC-Q200 certification and pulse-withstanding capability.
Frequently Asked Questions (FAQ)
Q: Can RC0805JR-071K8L directly replace RC2012J182CS without any circuit changes?
A: Yes. RC0805JR-071K8L is a direct substitute with identical resistance (1.8 kOhms), tolerance (±5%), power rating (0.125W), and package (0805). Both components are RoHS3 compliant with MSL Level 1 and moisture-resistant thick film construction. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which affects procurement but not electrical or mechanical performance.
Q: What is the difference between direct substitutes and upgrade substitutes?
A: Direct substitutes maintain the original ±5% tolerance specification. Upgrade substitutes provide improved ±1% tolerance, offering superior accuracy and stability. Upgrade parts are electrically compatible and can replace the original component, but the enhanced tolerance may provide performance benefits in precision applications. No circuit modification is required for either category.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain RoHS3 compliance, matching the environmental and regulatory status of the original RC2012J182CS.
Q: Which substitute parts include automotive AEC-Q200 certification?
A: AC0805FR-071K8L, ERJ-6ENF1801V, KTR10EZPF1801, RMCF0805FT1K80, AC0805JR-071K8L, CRCW08051K80FKEA, and CRCW08051K80FKEAHP all carry AEC-Q200 automotive qualification. These parts are suitable for automotive and mission-critical applications requiring formal qualification documentation.
Q: Can I use CRCW08051K80FKEAHP as a substitute if my circuit only requires 0.125W?
A: Yes. CRCW08051K80FKEAHP provides 0.5W (1/2W) power rating, which exceeds the 0.125W requirement of the original circuit. Higher power ratings are acceptable and provide additional thermal margin. The component maintains identical resistance (1.8 kOhms), tolerance (±1%), and package (0805) specifications. No circuit modification is required.
Q: What is the operating temperature range for all substitute parts?
A: All substitute parts operate across -55°C to 155°C, matching the original RC2012J182CS specification. Temperature coefficient is ±100ppm/°C for all components.
Q: Are there inventory differences between substitute options?
A: Yes. Inventory availability varies significantly: RC0805JR-071K8L (122,411 pcs), RMCF0805FT1K80 (138,633 pcs), CRCW08051K80FKEA (51,122 pcs), ERJ-6ENF1801V (97,019 pcs), AC0805FR-071K8L (15,313 pcs), AC0805JR-071K8L (10,974 pcs), RC0805FR-071K8L (2,200 pcs), and KTR10EZPF1801 (1,743 pcs). Higher inventory parts provide better supply security for production scheduling.
Q: What is MSL Level 1 and why does it matter?
A: MSL (Moisture Sensitivity Level) 1 indicates Unlimited shelf life with no moisture bake requirement before soldering. All substitute parts maintain MSL Level 1 classification, matching the original component's handling and storage requirements. This eliminates special moisture control procedures during assembly.
Q: Can I mix different substitute parts in the same production run?
A: Yes. All substitute parts maintain identical electrical specifications (1.8 kOhms, 0.125W minimum, -55°C to 155°C operating range) and mechanical compatibility (0805 package). Mixing direct and upgrade substitutes is acceptable from an engineering perspective. However, procurement and quality documentation practices should be reviewed to ensure traceability and compliance with design specifications.
Q: Which substitute offers the best value for general-purpose applications?
A: RC0805JR-071K8L (YAGEO) provides direct substitution with the highest inventory availability (122,411 pcs) and lowest supply risk. For applications where tolerance improvement is beneficial, RMCF0805FT1K80 (Stackpole) offers ±1% accuracy with excellent inventory (138,633 pcs) and AEC-Q200 certification at competitive availability.
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