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MCR03EZPFX1873 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX1873 is a 187 kOhms ±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 | 187 kOhms |
| 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 |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCR03EZPFX1873 is determined by strict equivalence across the following parameters:
- Resistance value: 187 kOhms
- 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
- Termination count: 2
- RoHS compliance: ROHS3 Compliant
- MSL rating: 1 (Unlimited)
Substitute parts are grouped into two categories based on feature alignment:
Direct Substitutes (AEC-Q200 Rated): CRCW0603187KFKEA (Vishay Dale), ERJ-3EKF1873V (Panasonic Electronic Components), and RMCF0603FT187K (Stackpole Electronics Inc) meet all electrical and mechanical specifications including automotive AEC-Q200 certification.
Similar Substitutes (Moisture Resistant): CR0603-FX-1873ELF (Bourns Inc.) and RC0603FR-07187KL (YAGEO) meet all core electrical and mechanical specifications but feature moisture-resistant composition instead of automotive AEC-Q200 rating.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | Features | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX1873 | Rohm Semiconductor | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Discontinued | 800 Pcs |
| CRCW0603187KFKEA | Vishay Dale | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 21755 Pcs |
| ERJ-3EKF1873V | Panasonic Electronic Components | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 108941 Pcs |
| RMCF0603FT187K | Stackpole Electronics Inc | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 91079 Pcs |
| CR0603-FX-1873ELF | Bourns Inc. | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | 23838 Pcs |
| RC0603FR-07187KL | YAGEO | 187 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | 70884 Pcs |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 certification, select from the direct substitutes: CRCW0603187KFKEA, ERJ-3EKF1873V, or RMCF0603FT187K. All three are active products with established supply availability and meet the original part's automotive qualification requirements.
For non-automotive applications or where moisture resistance is prioritized over automotive certification, CR0603-FX-1873ELF and RC0603FR-07187KL are suitable alternatives. Both maintain electrical and mechanical equivalence while offering moisture-resistant composition.
All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature specifications to the original MCR03EZPFX1873.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-1873ELF or RC0603FR-07187KL in an automotive application originally designed for MCR03EZPFX1873?
A: These parts meet all electrical and mechanical specifications but lack AEC-Q200 automotive certification. Use only if your application does not require automotive qualification or if design review permits substitution of the certification requirement.
Q: Are all substitute parts available in the same packaging format?
A: All substitute parts are supplied in 0603 (1608 Metric) package with 2 terminations, matching the original MCR03EZPFX1873. Packaging format (Tape & Reel) is consistent across all options.
Q: What is the difference between AEC-Q200 rated and moisture-resistant variants?
A: AEC-Q200 rated parts (CRCW0603187KFKEA, ERJ-3EKF1873V, RMCF0603FT187K) meet automotive qualification standards. Moisture-resistant variants (CR0603-FX-1873ELF, RC0603FR-07187KL) prioritize environmental protection without automotive certification. Selection depends on application requirements.
Q: Do all substitutes maintain the same temperature coefficient and operating range?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range, ensuring thermal performance equivalence.
Q: Which substitute offers the best supply availability?
A: ERJ-3EKF1873V (Panasonic) offers the highest inventory at 108,941 pieces, followed by RMCF0603FT187K (Stackpole) at 91,079 pieces.
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