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MCR03EZPFX3400 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX3400 is a 340 Ohms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This component is qualified to automotive AEC-Q200 standards and operates across -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 | 340 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 ~ 155°C |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCR03EZPFX3400 is determined by strict equivalence across the following parameters:
- Resistance value: 340 Ohms
- Tolerance: ±1%
- Power rating: 0.1W (1/10W)
- Package: 0603 (1608 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
- RoHS compliance: ROHS3 Compliant
- Moisture sensitivity: MSL 1
Substitute parts are grouped into two categories:
Direct Equivalents (Automotive AEC-Q200 Rated): MCR03ERTF3400, CRCW0603340RFKEA, ERJ-3EKF3400V, and RMCF0603FT340R meet all electrical and mechanical specifications with automotive qualification.
Similar Equivalent (Non-Automotive Rated): RC0603FR-07340RL meets all electrical and mechanical specifications but lacks automotive AEC-Q200 certification, featuring moisture-resistant composition instead.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX3400 | Rohm Semiconductor | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 1067 Pcs |
| MCR03ERTF3400 | Rohm Semiconductor | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Discontinued | 1022 Pcs |
| CRCW0603340RFKEA | Vishay Dale | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 26980 Pcs |
| ERJ-3EKF3400V | Panasonic Electronic Components | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 61210 Pcs |
| RMCF0603FT340R | Stackpole Electronics Inc | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 41181 Pcs |
| RC0603FR-07340RL | YAGEO | 340 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 102522 Pcs |
Engineering Selection Recommendations
For applications requiring automotive AEC-Q200 compliance, select from CRCW0603340RFKEA (Vishay Dale), ERJ-3EKF3400V (Panasonic), or RMCF0603FT340R (Stackpole Electronics). All three are currently in active production with substantial inventory availability.
CRCW0603340RFKEA offers the highest inventory level (26,980 pcs) among automotive-rated options. ERJ-3EKF3400V provides the largest stock position overall (61,210 pcs) with active status. RMCF0603FT340R delivers intermediate availability (41,181 pcs) with active production status.
For non-automotive applications where AEC-Q200 certification is not required, RC0603FR-07340RL (YAGEO) is available with the largest inventory (102,522 pcs) and active product status. This part maintains equivalent electrical and mechanical specifications with moisture-resistant composition.
MCR03ERTF3400 (Rohm Semiconductor) is discontinued and should not be selected for new designs despite meeting electrical specifications.
Frequently Asked Questions (FAQ)
Q: Can MCR03EZPFX3400 be replaced with RC0603FR-07340RL in automotive applications?
A: No. RC0603FR-07340RL lacks AEC-Q200 automotive qualification. For automotive applications, use CRCW0603340RFKEA, ERJ-3EKF3400V, or RMCF0603FT340R.
Q: Are all substitute parts physically compatible with the original PCB footprint?
A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical termination count (2). Dimensional variations are within standard PCB design tolerances for this package class.
Q: What is the difference between MCR03EZPFX3400 and MCR03ERTF3400?
A: Both are Rohm Semiconductor 340 Ohm ±1% 0.1W 0603 resistors with identical electrical specifications. MCR03ERTF3400 differs in packaging format (Cut Tape & Digi-Reel versus standard packaging). Both are discontinued.
Q: Which substitute offers the best long-term availability?
A: ERJ-3EKF3400V (Panasonic) and CRCW0603340RFKEA (Vishay Dale) both carry active product status with substantial inventory. ERJ-3EKF3400V currently shows the highest stock level (61,210 pcs).
Q: Do all substitutes meet RoHS3 compliance?
A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.
Q: Can I use a different resistance value if the exact 340 Ohm value is unavailable?
A: No. Resistance value is a critical electrical parameter. Only 340 Ohm ±1% parts are functionally equivalent. Alternative resistance values require circuit redesign and validation.
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