Equivalent & Substitute Parts for MCR03EZPFX2942

Part Overview

The MCR03EZPFX2942 is a 29.4 kOhms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W (1/10W) power dissipation. Manufactured by Rohm Semiconductor, this component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Resistance	29.4 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX2942 is determined by strict equivalence across the following parameters:

Resistance value: 29.4 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match required)
RoHS compliance: ROHS3 Compliant (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

Substitute parts are classified into two categories:

Direct Substitutes maintain full AEC-Q200 automotive qualification matching the original specification.

Similar Substitutes meet all electrical and mechanical parameters but feature moisture-resistant construction without explicit AEC-Q200 rating, suitable for applications where automotive qualification is not mandatory.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory (Pcs)
MCR03EZPFX2942	Rohm Semiconductor	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	936
CRCW060329K4FKEA	Vishay Dale	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	31954
ERJ-3EKF2942V	Panasonic Electronic Components	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	62429
RMCF0603FG29K4	Stackpole Electronics Inc	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	10699
RMCF0603FT29K4	Stackpole Electronics Inc	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	403581
CR0603-FX-2942ELF	Bourns Inc.	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	38196
RC0603FR-0729K4L	YAGEO	29.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	37359

Engineering Selection Recommendations

Direct Substitutes (AEC-Q200 Qualified):

For applications requiring automotive qualification compliance, the following parts provide full electrical and mechanical equivalence with active product status:

CRCW060329K4FKEA (Vishay Dale): 31,954 units in stock
ERJ-3EKF2942V (Panasonic Electronic Components): 62,429 units in stock
RMCF0603FG29K4 (Stackpole Electronics Inc): 10,699 units in stock
RMCF0603FT29K4 (Stackpole Electronics Inc): 403,581 units in stock

Similar Substitutes (Moisture-Resistant, Non-AEC-Q200):

For applications where automotive qualification is not required, the following parts meet all electrical and mechanical specifications with moisture-resistant construction:

CR0603-FX-2942ELF (Bourns Inc.): 38,196 units in stock
RC0603FR-0729K4L (YAGEO): 37,359 units in stock

Selection between direct and similar substitutes depends on application requirements. Direct substitutes maintain full automotive compliance. Similar substitutes provide equivalent electrical performance with moisture-resistant characteristics suitable for non-automotive or less stringent applications.

Frequently Asked Questions (FAQ)

Q: Can I use a similar substitute (non-AEC-Q200) in place of the original MCR03EZPFX2942?

A: Similar substitutes meet all electrical and mechanical parameters but lack AEC-Q200 automotive qualification. Use only in applications where automotive qualification is not a requirement. For automotive applications, use direct substitutes with AEC-Q200 rating.

Q: Are all substitute parts mechanically compatible with the original 0603 package?

A: All listed substitutes use the 0603 (1608 Metric) package. Physical dimensions vary slightly between manufacturers (length ranges 0.061" to 0.063", height ranges 0.020" to 0.022"), but all remain within standard 0603 footprint tolerances and are mechanically compatible for PCB assembly.

Q: What is the difference between RMCF0603FG29K4 and RMCF0603FT29K4?

A: Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications and AEC-Q200 qualification. The difference lies in packaging format and inventory availability. RMCF0603FT29K4 has significantly higher stock (403,581 units vs. 10,699 units).

Q: Do all substitutes have the same temperature coefficient?

A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient matching the original specification, ensuring equivalent thermal performance across the -55°C to 155°C operating range.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts, including both direct and similar substitutes, are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message