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MCR03EZPFX6340 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX6340 is a 634 Ohms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This component is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 634 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the MCR03EZPFX6340 is determined by strict equivalence across the following parameters: resistance value (634 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring functional interchangeability in circuit applications.
Substitute parts are grouped into two categories based on available certifications: Direct substitutes include parts with automotive AEC-Q200 rating matching the original specification, while similar substitutes meet all electrical parameters but may differ in specific feature certifications (such as moisture resistance designation versus automotive rating).
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX6340 | Rohm Semiconductor | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Discontinued | 898 Pcs |
| MCR03ERTF6340 | Rohm Semiconductor | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | No | Discontinued | 1135 Pcs |
| CRCW0603634RFKEA | Vishay Dale | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 24155 Pcs |
| ERJ-3EKF6340V | Panasonic Electronic Components | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 151507 Pcs |
| RMCF0603FT634R | Stackpole Electronics Inc | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 46612 Pcs |
| CR0603-FX-6340ELF | Bourns Inc. | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | No | Active | 19094 Pcs |
| RC0603FR-07634RL | YAGEO | 634 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C to 155°C | No | Active | 352582 Pcs |
Engineering Selection Recommendations
For applications requiring automotive AEC-Q200 compliance, direct substitutes are CRCW0603634RFKEA (Vishay Dale), ERJ-3EKF6340V (Panasonic Electronic Components), and RMCF0603FT634R (Stackpole Electronics Inc). All three maintain active product status with robust inventory availability. ERJ-3EKF6340V offers the highest inventory level at 151,507 pieces.
For non-automotive applications or where AEC-Q200 certification is not mandatory, CR0603-FX-6340ELF (Bourns Inc.) and RC0603FR-07634RL (YAGEO) are functionally equivalent alternatives with active status. RC0603FR-07634RL provides exceptional inventory depth at 352,582 pieces.
MCR03ERTF6340 from Rohm Semiconductor is electrically equivalent but lacks AEC-Q200 rating and is discontinued, making it unsuitable for new designs despite available inventory.
Frequently Asked Questions (FAQ)
Q: Can MCR03EZPFX6340 be replaced with any of the listed substitutes in automotive applications?
A: Only CRCW0603634RFKEA, ERJ-3EKF6340V, and RMCF0603FT634R maintain AEC-Q200 automotive certification matching the original part. CR0603-FX-6340ELF and RC0603FR-07634RL lack this certification and should not be used in automotive applications requiring AEC-Q200 compliance.
Q: Are there physical dimension differences between substitutes?
A: All substitutes use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance: CRCW0603634RFKEA measures 1.55mm × 0.85mm with 0.50mm maximum height, while most others measure 1.60mm × 0.80mm with 0.55mm maximum height. These variations remain within standard PCB footprint tolerances for 0603 components.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes (CRCW0603634RFKEA, ERJ-3EKF6340V, RMCF0603FT634R) carry AEC-Q200 automotive rating identical to the original part. Similar substitutes (CR0603-FX-6340ELF, RC0603FR-07634RL) meet all electrical specifications but feature moisture resistance designation instead of automotive certification, suitable for non-automotive applications.
Q: Is MCR03ERTF6340 a viable substitute despite discontinuation?
A: MCR03ERTF6340 is electrically equivalent but discontinued and lacks AEC-Q200 certification. It should not be selected for new designs. Active alternatives with superior availability are recommended.
Q: Do all substitutes meet RoHS3 and REACH compliance?
A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the original part's environmental compliance status.
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