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RC2012F3742CS 37.4kΩ ±1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts
Part Overview
The RC2012F3742CS is a thick film chip resistor manufactured by Samsung Electro-Mechanics with a resistance value of 37.4 kΩ, ±1% tolerance, and 0.125W power rating in 0805 (2012 Metric) package format. The component is moisture resistant and currently active in production status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and packaging requirements are met across alternative manufacturers, ensuring direct functional interchangeability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 37.4 kΩ |
| 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 to +155°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitution eligibility for the RC2012F3742CS is determined by strict equivalence across the following critical parameters:
Electrical Specifications: Resistance value must be 37.4 kΩ with ±1% tolerance. Temperature coefficient must be ±100ppm/°C. Power rating must be 0.125W (1/8W).
Mechanical & Package Specifications: Package format must be 0805 (2012 Metric). Physical dimensions must be 0.079" L × 0.049" W (2.00mm × 1.25mm). Number of terminations must be 2.
Environmental & Compliance: Moisture Sensitivity Level must be 1 (Unlimited). RoHS3 compliance is required. Operating temperature range must span -55°C to +155°C.
All identified substitute parts meet these criteria. Additional features such as automotive AEC-Q200 certification or high voltage capability represent enhanced specifications that do not disqualify parts from substitution but indicate expanded application scope.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Op. Temp Range (°C) | Package | Height Max (mm) | Features | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| RC2012F3742CS | Samsung Electro-Mechanics | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.65 | Moisture Resistant | Active |
| CR0805-FX-3742ELF | Bourns Inc. | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.60 | Moisture Resistant | Active |
| ERJ-6ENF3742V | Panasonic Electronic Components | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.70 | Automotive AEC-Q200 | Active |
| KTR10EZPF3742 | Rohm Semiconductor | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.65 | Automotive AEC-Q200, High Voltage | Active |
| RC0805FR-0737K4L | YAGEO | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.60 | Moisture Resistant | Active |
| RMCF0805FT37K4 | Stackpole Electronics Inc | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.65 | Automotive AEC-Q200 | Active |
| CRCW080537K4FKEA | Vishay Dale | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.50 | Automotive AEC-Q200 | Active |
| MCR10ERTF3742 | Rohm Semiconductor | 37.4 kΩ | ±1% | 0.125 | ±100 | -55 to +155 | 0805 | 0.65 | Standard Thick Film | Discontinued at DiGi Electronics |
Engineering Selection Recommendations
Active Production Status: CR0805-FX-3742ELF (Bourns), ERJ-6ENF3742V (Panasonic), KTR10EZPF3742 (Rohm), RC0805FR-0737K4L (YAGEO), RMCF0805FT37K4 (Stackpole), and CRCW080537K4FKEA (Vishay Dale) are all currently active in production and represent primary substitution options.
Compliance & Certifications: All substitute parts maintain ROHS3 compliance and MSL Level 1 rating. Parts designated with Automotive AEC-Q200 certification (ERJ-6ENF3742V, KTR10EZPF3742, RMCF0805FT37K4, CRCW080537K4FKEA) are suitable for automotive and high-reliability applications. Non-automotive variants (CR0805-FX-3742ELF, RC0805FR-0737K4L) are appropriate for general industrial and consumer applications.
Inventory Availability: Highest inventory levels are available for CRCW080537K4FKEA (20,748 pcs), ERJ-6ENF3742V (37,174 pcs), and RMCF0805FT37K4 (19,955 pcs). CR0805-FX-3742ELF (18,880 pcs) and RC0805FR-0737K4L (9,713 pcs) provide additional sourcing options. MCR10ERTF3742 (2,632 pcs) is discontinued at DiGi Electronics and should not be selected for new designs.
Mechanical Fit: All parts fit within standard 0805 package envelope. Height variations range from 0.50mm to 0.70mm maximum seated height, which is within typical PCB assembly tolerances for 0805 components.
Frequently Asked Questions (FAQ)
Q: Can I substitute RC2012F3742CS with any of the listed parts without circuit redesign?
A: Yes. All listed substitute parts meet identical electrical specifications (37.4 kΩ, ±1%, 0.125W, ±100ppm/°C) and mechanical requirements (0805 package, 2.00mm × 1.25mm dimensions). Direct substitution is functionally equivalent at the circuit level.
Q: What is the difference between automotive-rated and non-automotive variants?
A: Automotive AEC-Q200 certified parts (ERJ-6ENF3742V, KTR10EZPF3742, RMCF0805FT37K4, CRCW080537K4FKEA) undergo additional qualification testing for temperature cycling, humidity, and reliability. Non-automotive variants (CR0805-FX-3742ELF, RC0805FR-0737K4L) are suitable for general applications. Selection depends on application requirements, not component functionality.
Q: Are there any height restrictions I should consider?
A: Maximum seated heights range from 0.50mm (CRCW080537K4FKEA) to 0.70mm (ERJ-6ENF3742V). Standard 0805 PCB assembly processes accommodate this variation. Verify specific PCB design clearances if height-constrained applications exist.
Q: Why is MCR10ERTF3742 listed if it is discontinued?
A: MCR10ERTF3742 is included for reference purposes only, showing historical substitution relationships. This part is discontinued at DiGi Electronics and should not be selected for new designs. Use active production alternatives instead.
Q: Do all parts have the same moisture sensitivity level?
A: Yes. All parts are rated MSL Level 1 (Unlimited), meaning they have unlimited shelf life and require no special moisture control during storage or handling.
Q: Which substitute offers the best availability?
A: ERJ-6ENF3742V (Panasonic) has the highest inventory at 37,174 pcs. CRCW080537K4FKEA (Vishay Dale) and RMCF0805FT37K4 (Stackpole) also provide substantial stock levels exceeding 19,000 pcs each.
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