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MCR03EZPFX4300 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4300 is a 430 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade thick film resistor meets AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines that maintain identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 430 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 |
| Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (430 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1).
Substitute parts are categorized as follows:
Direct Equivalents (Identical Specifications): MCR03ERTF4300, CRCW0603430RFKEA, ERJ-3EKF4300V, RMCF0603FT430R
Upgrade Equivalent (Enhanced Features): KTR03EZPF4300 — maintains all core electrical and mechanical parameters while adding high voltage capability and automotive AEC-Q200 certification
Similar Equivalents (Minor Feature Variations): CR0603-FX-4300ELF, RC0603FR-07430RL — meet all electrical and mechanical requirements with moisture-resistant composition instead of standard thick film
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | AEC-Q200 | Product Status | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4300 | Rohm Semiconductor | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | Cut Tape & Digi-Reel |
| MCR03ERTF4300 | Rohm Semiconductor | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Discontinued | Cut Tape & Digi-Reel |
| KTR03EZPF4300 | Rohm Semiconductor | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | Tape & Reel |
| CRCW0603430RFKEA | Vishay Dale | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | Cut Tape & Digi-Reel |
| ERJ-3EKF4300V | Panasonic Electronic Components | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | Tape & Reel |
| RMCF0603FT430R | Stackpole Electronics Inc | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | Tape & Reel |
| CR0603-FX-4300ELF | Bourns Inc. | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | Tape & Reel |
| RC0603FR-07430RL | YAGEO | 430 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | Cut Tape & Digi-Reel |
Engineering Selection Recommendations
For Automotive Applications Requiring AEC-Q200 Certification: KTR03EZPF4300 (Rohm Semiconductor), CRCW0603430RFKEA (Vishay Dale), ERJ-3EKF4300V (Panasonic), or RMCF0603FT430R (Stackpole Electronics) are qualified substitutes. All maintain active product status with established supply chains.
For Non-Automotive or Non-Certified Applications: CR0603-FX-4300ELF (Bourns) and RC0603FR-07430RL (YAGEO) provide functional equivalence with moisture-resistant composition. Both are active products with high inventory availability.
For Tape & Reel Packaging Requirement: KTR03EZPF4300, ERJ-3EKF4300V, RMCF0603FT430R, and CR0603-FX-4300ELF are supplied in Tape & Reel format.
For Cut Tape & Digi-Reel Packaging Requirement: CRCW0603430RFKEA and RC0603FR-07430RL are supplied in Cut Tape & Digi-Reel format.
Frequently Asked Questions (FAQ)
Q: Can MCR03ERTF4300 directly replace MCR03EZPFX4300? A: MCR03ERTF4300 matches all electrical and mechanical specifications (430 Ω, ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). However, it lacks AEC-Q200 certification present in the original part. Use only if automotive qualification is not required.
Q: What is the difference between direct equivalents and the upgrade equivalent KTR03EZPF4300? A: KTR03EZPF4300 maintains identical core electrical parameters but adds high voltage capability and retains AEC-Q200 certification. It is the only active Rohm product in this substitution group.
Q: Are CR0603-FX-4300ELF and RC0603FR-07430RL suitable for automotive applications? A: Both parts meet all electrical and mechanical requirements but lack AEC-Q200 certification. They are suitable for non-automotive applications or applications where automotive qualification is not mandated.
Q: Does packaging format affect electrical performance? A: No. Tape & Reel and Cut Tape & Digi-Reel packaging formats do not affect electrical characteristics. Selection depends on assembly process requirements and inventory management practices.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX4300 specifications.
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