MCR03EZPFX29R4 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX29R4 is a 29.4 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

MCR03EZPFX29R4

Rohm SemiconductorIn Stock: 776MCR03EZPFX29R4 Datasheet

Current PartRFQ

CRCW060329R4FKEA

Vishay DaleIn Stock: 26273CRCW060329R4FKEA Datasheet

DirectRFQ

ERJ-3EKF29R4V

Panasonic Electronic ComponentsIn Stock: 53295ERJ-3EKF29R4V Datasheet

DirectRFQ

RMCF0603FT29R4

Stackpole Electronics IncIn Stock: 1698RMCF0603FT29R4 Datasheet

DirectRFQ

CR0603-FX-29R4ELF

Bourns Inc.In Stock: 24892CR0603-FX-29R4ELF Datasheet

SimilarRFQ

RC0603FR-0729R4L

YAGEOIn Stock: 66326RC0603FR-0729R4L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX29R4 is determined by strict equivalence across the following parameters: resistance value (29.4 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, REACH Unaffected, EAR99).

Direct Substitutes (identical electrical and mechanical specifications):

• CRCW060329R4FKEA (Vishay Dale) — Active product status
• ERJ-3EKF29R4V (Panasonic Electronic Components) — Active product status
• RMCF0603FT29R4 (Stackpole Electronics Inc) — Active product status

Similar Substitutes (meet core electrical parameters; minor feature variations):

• CR0603-FX-29R4ELF (Bourns Inc.) — Moisture resistant feature; active product status
• RC0603FR-0729R4L (YAGEO) — Moisture resistant feature; active product status

All substitute parts maintain identical resistance, tolerance, power rating, package dimensions, temperature coefficient, and operating temperature range. Dimensional variations are within acceptable tolerances for 0603 package specifications.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the MCR03EZPFX29R4, the following selection criteria apply:

Primary Substitutes (Automotive AEC-Q200 Rated): CRCW060329R4FKEA, ERJ-3EKF29R4V, and RMCF0603FT29R4 are direct equivalents with active product status and automotive AEC-Q200 certification. These parts are suitable for automotive applications requiring the same compliance level as the original component.

Secondary Substitutes (Moisture Resistant, Non-Automotive Rated): CR0603-FX-29R4ELF and RC0603FR-0729R4L meet all electrical and mechanical specifications but lack automotive AEC-Q200 certification. These parts are suitable for non-automotive applications or where moisture resistance is a design requirement.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-29R4ELF or RC0603FR-0729R4L as direct replacements in automotive applications? A: CR0603-FX-29R4ELF and RC0603FR-0729R4L do not carry AEC-Q200 automotive certification. Use these parts only in non-automotive applications or where automotive qualification is not required. For automotive applications, select CRCW060329R4FKEA, ERJ-3EKF29R4V, or RMCF0603FT29R4.

Q: Are there dimensional differences between the MCR03EZPFX29R4 and its substitutes? A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within standard 0603 tolerances: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width is 0.031" to 0.033" (0.80mm to 0.85mm), and height ranges from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within acceptable PCB design tolerances.

Q: What is the difference between direct and similar substitutes? A: Direct substitutes (CRCW060329R4FKEA, ERJ-3EKF29R4V, RMCF0603FT29R4) carry AEC-Q200 automotive certification matching the original part. Similar substitutes (CR0603-FX-29R4ELF, RC0603FR-0729R4L) meet electrical and mechanical specifications but feature moisture resistance instead of automotive qualification.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the MCR03EZPFX29R4.

Q: Which substitute has the highest inventory availability? A: RC0603FR-0729R4L (YAGEO) has 66,297 pieces in stock, followed by CRCW060329R4FKEA (Vishay Dale) with 26,182 pieces.