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RC2012J513CS Equivalent & Substitute Parts Reference
Part Overview
The RC2012J513CS is a 51 kOhm ±5% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 51 kOhms |
| Tolerance | ±5% |
| 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 |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Dimensions | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
Substitute Part Grouping Explanation
Substitute parts for the RC2012J513CS are categorized based on strict electrical and mechanical parameter matching:
Direct Equivalent (Same Tolerance ±5%):
- RC0805JR-0751KL (YAGEO) maintains identical 51 kOhm resistance, ±5% tolerance, and 0.125W power rating with matching 0805 package dimensions and operating temperature range.
Upgrade Equivalents (Enhanced Tolerance ±1%):
- AC0805FR-0751KL, CR0805-FX-5102ELF, CRG0805F51K, ERJ-6ENF5102V, KTR10EZPF5102, RC0805FR-0751KL, and RMCF0805FT51K0 provide tighter tolerance specifications (±1%) while maintaining all other electrical and mechanical parameters. These parts are functionally compatible for applications requiring improved accuracy.
Similar Parts (Same Tolerance ±5%, Enhanced Features):
- AC0805JR-0751KL (YAGEO) matches the ±5% tolerance and 51 kOhm resistance with automotive AEC-Q200 certification added.
Related Parts (Enhanced Tolerance ±1%, Automotive Rated):
- CRCW080551K0FKEA (Vishay Dale) provides ±1% tolerance with AEC-Q200 automotive qualification.
Substitution logic is based on matching: resistance value (51 kOhms), package format (0805), power rating (0.125W), operating temperature range (-55°C ~ 155°C), and moisture sensitivity level (MSL 1). Tolerance upgrades from ±5% to ±1% represent enhanced performance without functional incompatibility.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | MSL | RoHS | Height Max |
|---|---|---|---|---|---|---|---|---|---|---|
| RC2012J513CS | Samsung Electro-Mechanics | 51 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.026" |
| RC0805JR-0751KL | YAGEO | 51 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.024" |
| AC0805FR-0751KL | YAGEO | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.024" |
| CR0805-FX-5102ELF | Bourns Inc. | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.024" |
| CRG0805F51K | TE Connectivity Passive Product | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.026" |
| ERJ-6ENF5102V | Panasonic Electronic Components | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.028" |
| KTR10EZPF5102 | Rohm Semiconductor | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.026" |
| RC0805FR-0751KL | YAGEO | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.024" |
| RMCF0805FT51K0 | Stackpole Electronics Inc | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.026" |
| AC0805JR-0751KL | YAGEO | 51 kΩ | ±5% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.024" |
| CRCW080551K0FKEA | Vishay Dale | 51 kΩ | ±1% | 0.125 | 0805 | ±100ppm/°C | -55~155°C | 1 | ROHS3 | 0.020" |
Engineering Selection Recommendations
Direct Replacement (No Design Changes Required): RC0805JR-0751KL from YAGEO serves as the primary direct equivalent, maintaining identical electrical specifications (51 kOhm ±5%, 0.125W) and package format. Both components are Active status products with ROHS3 compliance and MSL 1 rating.
Tolerance-Enhanced Substitutes (±1% Tolerance): All upgrade equivalents listed (AC0805FR-0751KL, CR0805-FX-5102ELF, CRG0805F51K, ERJ-6ENF5102V, KTR10EZPF5102, RC0805FR-0751KL, RMCF0805FT51K0) provide improved tolerance specifications while maintaining core electrical and mechanical compatibility. These parts are suitable for applications where tighter resistance accuracy is beneficial. All are Active status with ROHS3 compliance.
Automotive-Qualified Options: AC0805FR-0751KL, ERJ-6ENF5102V, KTR10EZPF5102, RMCF0805FT51K0, and CRCW080551K0FKEA include AEC-Q200 automotive qualification. These parts are appropriate for automotive and high-reliability applications.
Packaging Considerations: RC0805JR-0751KL is supplied in Cut Tape (CT) & Digi-Reel® format, while the main part uses Tape & Reel (TR). All other substitutes use Tape & Reel packaging. Height variations range from 0.020" to 0.028" maximum seated height; all remain within standard 0805 package specifications.
Frequently Asked Questions (FAQ)
Q: Can RC0805JR-0751KL directly replace RC2012J513CS without circuit modification? A: Yes. RC0805JR-0751KL maintains identical resistance (51 kOhm), tolerance (±5%), power rating (0.125W), package format (0805), operating temperature range (-55°C ~ 155°C), and moisture sensitivity level (MSL 1). Both components are ROHS3 compliant and Active status products.
Q: What is the difference between the main part and the ±1% tolerance upgrade options? A: The main part RC2012J513CS specifies ±5% tolerance. Upgrade equivalents such as AC0805FR-0751KL, CR0805-FX-5102ELF, and others provide ±1% tolerance, representing tighter resistance accuracy. All other electrical and mechanical parameters remain identical. The ±1% tolerance upgrade does not introduce incompatibility; it enhances performance for precision-sensitive applications.
Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications? A: Yes. Automotive-qualified parts such as ERJ-6ENF5102V, RMCF0805FT51K0, and KTR10EZPF5102 meet or exceed standard commercial specifications. They are functionally compatible with any application requiring 51 kOhm ±1% 0.125W 0805 resistors.
Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance? A: No. Packaging format affects only handling, storage, and assembly processes. RC0805JR-0751KL supplied in Cut Tape (CT) & Digi-Reel® format is electrically identical to parts supplied in Tape & Reel (TR) format.
Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity level? A: MSL 1 indicates unlimited shelf life under standard storage conditions without moisture baking requirements. All listed substitute parts maintain MSL 1 rating, ensuring equivalent moisture handling and storage requirements.
Q: Can parts with different maximum seated heights be used interchangeably on the same PCB? A: Yes. All listed parts conform to 0805 (2012 Metric) package specifications. Height variations (0.020" to 0.028" maximum) fall within standard package tolerances and do not affect PCB assembly compatibility or electrical performance.
Q: Which substitute part offers the best availability? A: RMCF0805FT51K0 from Stackpole Electronics Inc shows the highest inventory level (199,006 pcs). CRG0805F51K from TE Connectivity (60,368 pcs) and ERJ-6ENF5102V from Panasonic (109,694 pcs) also provide substantial availability.
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