MCR03EZPFX1021 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1021 is a 1.02 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, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for seamless design continuity.

Substiute Parts

MCR03EZPFX1021

Rohm SemiconductorIn Stock: 1106MCR03EZPFX1021 Datasheet

Current PartRFQ

CRCW06031K02FKEA

Vishay DaleIn Stock: 15984CRCW06031K02FKEA Datasheet

DirectRFQ

ERJ-3EKF1021V

Panasonic Electronic ComponentsIn Stock: 170414ERJ-3EKF1021V Datasheet

DirectRFQ

RMCF0603FG1K02

Stackpole Electronics IncIn Stock: 10984RMCF0603FG1K02 Datasheet

DirectRFQ

RMCF0603FT1K02

Stackpole Electronics IncIn Stock: 128733RMCF0603FT1K02 Datasheet

DirectRFQ

CR0603-FX-1021ELF

Bourns Inc.In Stock: 15630CR0603-FX-1021ELF Datasheet

SimilarRFQ

RC0603FR-071K02L

YAGEOIn Stock: 372769RC0603FR-071K02L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCR03EZPFX1021 are classified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Primary Matching Parameters:

• Resistance value: 1.02 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
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Direct Substitutes maintain all electrical parameters and automotive AEC-Q200 certification. Similar Substitutes match all electrical and mechanical specifications but feature moisture-resistant composition instead of automotive AEC-Q200 rating, suitable for applications where automotive qualification is not mandatory.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Automotive AEC-Q200 Rated):

For applications requiring automotive qualification compliance, select from CRCW06031K02FKEA (Vishay Dale), ERJ-3EKF1021V (Panasonic), RMCF0603FG1K02, or RMCF0603FT1K02 (Stackpole Electronics). All maintain identical electrical specifications and AEC-Q200 certification. ERJ-3EKF1021V offers the highest inventory availability at 170308 pieces. RMCF0603FT1K02 provides substantial stock at 128641 pieces with active product status.

Similar Substitutes (Moisture-Resistant, Non-Automotive):

CR0603-FX-1021ELF (Bourns) and RC0603FR-071K02L (YAGEO) are suitable for non-automotive applications where moisture resistance is beneficial but AEC-Q200 certification is not required. RC0603FR-071K02L provides maximum inventory availability at 372712 pieces.

All substitute parts are ROHS3 compliant with MSL rating 1 (Unlimited) and maintain the same dimensional specifications and termination count as the original MCR03EZPFX1021.

Frequently Asked Questions (FAQ)

Q: Can I use a moisture-resistant substitute in place of an AEC-Q200 rated part?

A: No. If your application requires automotive AEC-Q200 certification, use only direct substitutes: CRCW06031K02FKEA, ERJ-3EKF1021V, RMCF0603FG1K02, or RMCF0603FT1K02. Moisture-resistant variants (CR0603-FX-1021ELF, RC0603FR-071K02L) lack automotive qualification and are suitable only for non-automotive applications.

Q: Are all substitute parts mechanically compatible with the original MCR03EZPFX1021?

A: Yes. All listed substitutes use the 0603 (1608 Metric) package with identical termination count (2) and compatible dimensional specifications. Slight variations in length and height (within 0.002" to 0.004") do not affect PCB assembly or circuit performance.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes maintain AEC-Q200 automotive certification. Similar substitutes feature moisture-resistant composition but lack automotive qualification. Selection depends on whether your application requires automotive compliance.

Q: Can I mix different substitute manufacturers in the same design?

A: Yes. All listed substitutes meet identical electrical specifications (1.02 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C). Mixing manufacturers is acceptable provided all parts meet your application's certification requirements (automotive or non-automotive).

Q: Which substitute offers the best availability?

A: RC0603FR-071K02L (YAGEO) has the highest inventory at 372712 pieces. For automotive-qualified parts, ERJ-3EKF1021V (Panasonic) offers 170308 pieces and RMCF0603FT1K02 (Stackpole) provides 128641 pieces.