MCR01MZPJ3R9 Equivalent & Substitute Parts

Part Overview

The MCR01MZPJ3R9 is a 3.9 Ohm ±5% 1/16W (0.063W) chip resistor in 0402 (1005 Metric) package manufactured by Rohm Semiconductor. This automotive-grade thick film resistor meets AEC-Q200 qualification 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. Substitute parts must maintain identical electrical specifications and package dimensions to ensure direct board-level compatibility.

Substiute Parts

MCR01MZPJ3R9

Rohm SemiconductorIn Stock: 1126MCR01MZPJ3R9 Datasheet

Current PartRFQ

MCR01MRTJ3R9

Rohm SemiconductorIn Stock: 2388MCR01MRTJ3R9 Datasheet

DirectRFQ

ERJ-2GEJ3R9X

Panasonic Electronic ComponentsIn Stock: 320202ERJ-2GEJ3R9X Datasheet

DirectRFQ

RC0402JR-073R9L

YAGEOIn Stock: 113946RC0402JR-073R9L Datasheet

DirectRFQ

CRCW04023R90FKED

Vishay DaleIn Stock: 53330CRCW04023R90FKED Datasheet

UpgradeRFQ

CRCW04023R90JNED

Vishay DaleIn Stock: 20843CRCW04023R90JNED Datasheet

UpgradeRFQ

CR0402-J/-3R9GLF

Bourns Inc.In Stock: 1015CR0402-J/-3R9GLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Substitution Criteria (Must Match):

• Resistance value: 3.9 Ohms
• Tolerance: ±5% (or tighter)
• Package / Case: 0402 (1005 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C minimum
• RoHS3 compliance
• MSL rating: 1 or better

Secondary Considerations:

• Power rating: 0.063W minimum (higher ratings acceptable)
• Automotive qualification (AEC-Q200) preferred for automotive applications
• Product status: Active parts preferred over discontinued

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Substitutes maintain identical electrical and mechanical specifications with no performance trade-offs.

Upgrade Substitutes offer improved specifications (tighter tolerance, higher power rating, or enhanced automotive qualification) while maintaining full backward compatibility.

Similar Substitutes meet all critical parameters but may have minor variations in secondary characteristics such as temperature coefficient or packaging format.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Automotive Applications): CRCW04023R90JNED (Vishay Dale) is the primary recommendation. This part maintains identical electrical specifications to MCR01MZPJ3R9, carries AEC-Q200 automotive qualification, is currently in active production with substantial inventory, and is available in standard Tape & Reel packaging. The ±200ppm/°C temperature coefficient and ±5% tolerance match the original specification.

For Upgraded Performance (Automotive Applications): CRCW04023R90FKED (Vishay Dale) offers tighter ±1% tolerance and superior ±100ppm/°C temperature coefficient while maintaining AEC-Q200 qualification and identical package dimensions. This upgrade is suitable for applications requiring improved accuracy without circuit redesign.

For Non-Automotive Applications: RC0402JR-073R9L (YAGEO) provides a cost-effective alternative with active product status, high inventory availability, and identical electrical specifications. This part is suitable for non-automotive designs where AEC-Q200 qualification is not required.

For Rohm Semiconductor Continuity: MCR01MRTJ3R9 maintains manufacturer continuity but is discontinued. This part is electrically identical to the original but lacks AEC-Q200 qualification and is available only in Cut Tape packaging.

For Panasonic Designs: ERJ-2GEJ3R9X (Panasonic Electronic Components) provides AEC-Q200 qualification with higher 0.1W power rating and improved temperature coefficient range (-100/+600ppm/°C). This part is suitable for applications requiring enhanced thermal performance.

Frequently Asked Questions (FAQ)

Q: Can MCR01MRTJ3R9 be used as a direct replacement for MCR01MZPJ3R9? A: MCR01MRTJ3R9 is electrically and mechanically identical but lacks AEC-Q200 automotive qualification. It is suitable only for non-automotive applications. The primary difference is packaging format (Cut Tape vs. Tape & Reel).

Q: What is the difference between the Vishay Dale upgrade options? A: CRCW04023R90FKED offers ±1% tolerance and ±100ppm/°C temperature coefficient (tighter specifications). CRCW04023R90JNED maintains ±5% tolerance and ±200ppm/°C temperature coefficient (matching the original). Both carry AEC-Q200 qualification and are suitable for automotive applications.

Q: Is ERJ-2GEJ3R9X compatible with the original MCR01MZPJ3R9? A: Yes. ERJ-2GEJ3R9X meets all substitution criteria with identical resistance, tolerance, and package dimensions. The higher 0.1W power rating provides additional thermal margin. The temperature coefficient range is wider (-100/+600ppm/°C vs. -250/+500ppm/°C), which is acceptable for most applications.

Q: Why does RC0402JR-073R9L lack AEC-Q200 qualification? A: RC0402JR-073R9L is manufactured by YAGEO and does not carry automotive qualification. It is suitable for consumer and industrial applications but should not be used in automotive designs requiring AEC-Q200 compliance.

Q: Can I use CRCW04023R90FKED in place of MCR01MZPJ3R9 without circuit verification? A: Yes. CRCW04023R90FKED is a direct upgrade with tighter tolerance (±1% vs. ±5%) and superior temperature coefficient (±100ppm/°C vs. -250/+500ppm/°C). The improved specifications ensure compatibility without circuit redesign.

Q: What is the significance of MSL 1 rating? A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture baking requirements. All listed substitutes maintain MSL 1 rating, ensuring identical moisture handling and storage procedures.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the original MCR01MZPJ3R9 environmental compliance status.