MCR03EZPFX8451 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX8451 is an 8.45 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

MCR03EZPFX8451

Rohm SemiconductorIn Stock: 976MCR03EZPFX8451 Datasheet

Current PartRFQ

CRCW06038K45FKEA

Vishay DaleIn Stock: 21276CRCW06038K45FKEA Datasheet

DirectRFQ

ERJ-3EKF8451V

Panasonic Electronic ComponentsIn Stock: 88277ERJ-3EKF8451V Datasheet

DirectRFQ

RMCF0603FG8K45

Stackpole Electronics IncIn Stock: 4132RMCF0603FG8K45 Datasheet

DirectRFQ

RMCF0603FT8K45

Stackpole Electronics IncIn Stock: 188101RMCF0603FT8K45 Datasheet

DirectRFQ

CR0603-FX-8451ELF

Bourns Inc.In Stock: 40819CR0603-FX-8451ELF Datasheet

SimilarRFQ

RC0603FR-078K45L

YAGEOIn Stock: 465023RC0603FR-078K45L Datasheet

SimilarRFQ

RC1608F8451CS

Samsung Electro-MechanicsIn Stock: 877RC1608F8451CS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX8451 is determined by strict equivalence across the following parameters:

• Resistance value: 8.45 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
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

Direct substitutes maintain all electrical and mechanical parameters identical to the original part. Similar substitutes meet all core electrical specifications and package requirements but may differ in specific features such as automotive certification or moisture resistance designation. All listed parts are functionally interchangeable within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring strict automotive AEC-Q200 compliance, direct substitutes CRCW06038K45FKEA, ERJ-3EKF8451V, RMCF0603FG8K45, and RMCF0603FT8K45 maintain full certification equivalence to the original MCR03EZPFX8451. All five direct substitutes are currently in active production status with established supply chains.

For non-automotive applications or where AEC-Q200 certification is not mandatory, CR0603-FX-8451ELF, RC0603FR-078K45L, and RC1608F8451CS provide functionally equivalent performance with identical electrical specifications and package compatibility. These similar substitutes are available in high inventory quantities.

All listed parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions. Selection should prioritize active production status parts to ensure long-term availability and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-8451ELF as a direct replacement for MCR03EZPFX8451 in automotive applications?

A: CR0603-FX-8451ELF is not rated for AEC-Q200 automotive certification. For automotive applications requiring AEC-Q200 compliance, use CRCW06038K45FKEA, ERJ-3EKF8451V, RMCF0603FG8K45, or RMCF0603FT8K45 instead.

Q: Are there any physical dimension differences between the substitute parts?

A: All substitute parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within standard 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 maximum seated height ranges from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB design tolerances.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape packaging is pre-cut into smaller quantities for manual assembly or lower-volume applications. Both formats contain identical components; selection depends on assembly process requirements.

Q: Do all substitute parts have the same temperature coefficient?

A: Yes, all listed substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range, ensuring thermal performance equivalence across the full product range.

Q: Which substitute has the highest inventory availability?

A: RC0603FR-078K45L from YAGEO has the highest inventory with 464,966 pieces in stock. RMCF0603FT8K45 from Stackpole Electronics Inc has 188,028 pieces available. For automotive-rated parts, ERJ-3EKF8451V from Panasonic has 88,266 pieces in stock.