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ERJ-MP2MF4M0U Equivalent & Substitute Parts
Part Overview
The ERJ-MP2MF4M0U is a 4 mOhms ±1% 1W chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This metal element current sense resistor is designed for automotive applications with AEC-Q200 qualification and moisture resistance. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 4 mOhms |
| Tolerance | ±1% |
| Power Rating | 1W |
| Package | 1206 (3216 Metric) |
| Composition | Metal Element |
| Temperature Coefficient | ±75ppm/°C |
| Operating Temperature Range | -65°C ~ 170°C |
| Features | Current Sense, Moisture Resistant, AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the ERJ-MP2MF4M0U is determined by the following critical parameters:
Direct Substitutes must match:
- Resistance value: 4 mOhms
- Tolerance: ±1%
- Package: 1206 (3216 Metric)
- Composition: Metal Element
- Minimum power rating: 1W
- RoHS3 compliance
- MSL rating: 1 or better
Similar Substitutes may vary in:
- Package size (larger packages acceptable if circuit board space permits)
- Power rating (higher ratings acceptable)
- Temperature coefficient (within acceptable operating range)
- Operating temperature range (must encompass application requirements)
- AEC-Q200 certification (not required for non-automotive applications)
Parameter Comparison
| Parameter | ERJ-MP2MF4M0U (Main) | CSNL1206FT4L00 (Direct) | CRF2512-FZ-R004ELF (Similar) |
|---|---|---|---|
| Manufacturer | Panasonic Electronic Components | Stackpole Electronics Inc | Bourns Inc. |
| Resistance | 4 mOhms | 4 mOhms | 4 mOhms |
| Tolerance | ±1% | ±1% | ±1% |
| Power Rating | 1W | 1W | 2W |
| Package | 1206 (3216 Metric) | 1206 (3216 Metric) | 2512 (6432 Metric) |
| Composition | Metal Element | Metal Element | Metal Element |
| Temperature Coefficient | ±75ppm/°C | ±50ppm/°C | ±50ppm/°C |
| Operating Temperature | -65°C ~ 170°C | -55°C ~ 170°C | -55°C ~ 170°C |
| AEC-Q200 | Yes | No | Yes |
| RoHS3 Compliant | Yes | Yes | Yes |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active | Active |
Engineering Selection Recommendations
CSNL1206FT4L00 is the direct functional equivalent. It maintains identical resistance, tolerance, power rating, and package dimensions. The part is manufactured by Stackpole Electronics Inc and carries active product status with higher inventory availability (15,081 pcs). While it lacks AEC-Q200 certification, it meets all electrical and mechanical specifications for non-automotive applications. The temperature coefficient of ±50ppm/°C is superior to the original part.
CRF2512-FZ-R004ELF is a similar substitute suitable for applications where increased power dissipation capacity is beneficial. Manufactured by Bourns Inc, this part maintains AEC-Q200 automotive qualification and identical electrical specifications. The 2512 package is physically larger than the 1206, requiring board layout verification. This option is appropriate for automotive applications requiring AEC-Q200 compliance.
For automotive applications requiring AEC-Q200 certification, CRF2512-FZ-R004ELF is the qualified substitute. For general industrial and consumer applications, CSNL1206FT4L00 provides direct compatibility with superior temperature stability.
Frequently Asked Questions (FAQ)
Q: Can CSNL1206FT4L00 be used as a direct replacement for ERJ-MP2MF4M0U?
A: Yes. Both parts share identical resistance (4 mOhms), tolerance (±1%), power rating (1W), and 1206 package dimensions. Electrical and mechanical compatibility is confirmed. The absence of AEC-Q200 certification in CSNL1206FT4L00 is relevant only for automotive applications.
Q: What is the key difference between the direct and similar substitutes?
A: CSNL1206FT4L00 maintains the original 1206 package and 1W power rating. CRF2512-FZ-R004ELF uses a larger 2512 package with 2W power rating. Package selection depends on circuit board layout constraints and thermal requirements.
Q: Is CRF2512-FZ-R004ELF suitable for automotive applications?
A: Yes. CRF2512-FZ-R004ELF carries AEC-Q200 certification, meeting automotive qualification requirements. The larger package may require board redesign verification.
Q: What is the impact of different temperature coefficients?
A: ERJ-MP2MF4M0U has ±75ppm/°C while both substitutes have ±50ppm/°C. Lower temperature coefficients indicate superior stability across temperature variations, making the substitutes more stable in thermal cycling environments.
Q: Can these parts be used interchangeably in the same PCB footprint?
A: CSNL1206FT4L00 uses identical 1206 footprint and is directly interchangeable. CRF2512-FZ-R004ELF requires a 2512 footprint and cannot be used in 1206 pads without board modification.
Q: Are all substitutes RoHS3 compliant?
A: Yes. ERJ-MP2MF4M0U, CSNL1206FT4L00, and CRF2512-FZ-R004ELF are all ROHS3 compliant with MSL rating 1 (Unlimited).
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