MCR10ERTJ430 Equivalent & Substitute Parts

Part Overview

The MCR10ERTJ430 is a 43 Ohm ±5% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Rohm Semiconductor. This part is discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and accommodate specific application requirements such as enhanced power ratings, improved tolerance specifications, or automotive-grade certifications.

Key Parameters

Parameter	Value
Resistance	43 Ohms
Tolerance	±5%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for MCR10ERTJ430 are categorized based on the following substitution criteria:

Direct Equivalents maintain identical electrical and mechanical specifications: 43 Ohms resistance, ±5% tolerance, 0.125W power rating, 0805 package, ±200ppm/°C temperature coefficient, and -55°C to 155°C operating range. These parts differ only in manufacturer and may include additional features such as moisture resistance or automotive certification.

Upgrade Parts provide enhanced specifications while maintaining the same 43 Ohm resistance and 0805 package. Upgrades include improved tolerance (±1% instead of ±5%), increased power ratings (0.4W or 0.5W), automotive AEC-Q200 certification, or pulse withstanding capability. These parts are suitable for applications requiring tighter tolerance control or higher thermal performance.

The following parameters determine substitution eligibility:

Resistance value: 43 Ohms (fixed)
Package: 0805 (2012 Metric) (fixed)
Operating temperature range: -55°C to 155°C (fixed)
Tolerance: ±5% (direct equivalents) or ±1% (upgrades)
Power rating: 0.125W (direct equivalents), 0.4W, or 0.5W (upgrades)
Composition: Thick Film (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Features	Product Status
MCR10ERTJ430	Rohm Semiconductor	43 Ω	±5%	0.125	±200	—	Discontinued
CR0805-JW-430ELF	Bourns Inc.	43 Ω	±5%	0.125	±200	Moisture Resistant	Active
ERJ-6GEYJ430V	Panasonic Electronic Components	43 Ω	±5%	0.125	±200	Automotive AEC-Q200	Active
RMCF0805JT43R0	Stackpole Electronics Inc	43 Ω	±5%	0.125	±200	Automotive AEC-Q200	Active
ESR10EZPJ430	Rohm Semiconductor	43 Ω	±5%	0.4	±200	Automotive AEC-Q200, Pulse Withstanding	Active
ERJ-P06J430V	Panasonic Electronic Components	43 Ω	±5%	0.5	±200	Automotive AEC-Q200, Pulse Withstanding	Active
MCR10ERTF43R0	Rohm Semiconductor	43 Ω	±1%	0.125	±100	—	Discontinued
ERJ-6ENF43R0V	Panasonic Electronic Components	43 Ω	±1%	0.125	±100	Automotive AEC-Q200	Active
RC0805FR-0743RL	YAGEO	43 Ω	±1%	0.125	±100	Moisture Resistant	Active
RC0805JR-0743RL	YAGEO	43 Ω	±5%	0.125	±100	Moisture Resistant	Active
RMCF0805FT43R0	Stackpole Electronics Inc	43 Ω	±1%	0.125	±100	Automotive AEC-Q200	Active

Engineering Selection Recommendations

For Direct Replacement (Active Status, Identical Specifications): CR0805-JW-430ELF, ERJ-6GEYJ430V, and RMCF0805JT43R0 are functionally equivalent to MCR10ERTJ430. All three are in active production status. ERJ-6GEYJ430V and RMCF0805JT43R0 include automotive AEC-Q200 certification, suitable for automotive applications. CR0805-JW-430ELF includes moisture resistance, suitable for high-humidity environments.

For Enhanced Tolerance (±1% Specification): MCR10ERTF43R0, ERJ-6ENF43R0V, RC0805FR-0743RL, and RMCF0805FT43R0 provide ±1% tolerance with reduced temperature coefficient (±100ppm/°C). ERJ-6ENF43R0V and RMCF0805FT43R0 include automotive AEC-Q200 certification. RC0805FR-0743RL includes moisture resistance. These parts are suitable for precision applications requiring tighter resistance tolerance.

For Increased Power Dissipation: ESR10EZPJ430 (0.4W) and ERJ-P06J430V (0.5W) provide higher power ratings while maintaining 43 Ohm resistance and 0805 package. Both include automotive AEC-Q200 certification and pulse withstanding capability. These parts are suitable for applications requiring enhanced thermal performance.

For Moisture-Resistant Applications: CR0805-JW-430ELF and RC0805FR-0743RL include moisture resistance features, suitable for applications exposed to high humidity or condensation environments.

Frequently Asked Questions (FAQ)

Q: Can I use RC0805JR-0743RL as a direct replacement for MCR10ERTJ430? A: Yes. RC0805JR-0743RL maintains the same 43 Ohm resistance, ±5% tolerance, 0.125W power rating, and 0805 package. The primary difference is the temperature coefficient (±100ppm/°C versus ±200ppm/°C), which represents improved stability. Moisture resistance is an additional feature.

Q: What is the difference between direct equivalents and upgrade parts? A: Direct equivalents maintain identical electrical specifications (43 Ω, ±5%, 0.125W, ±200ppm/°C). Upgrade parts enhance one or more specifications: tolerance (±1%), power rating (0.4W or 0.5W), temperature coefficient (±100ppm/°C), or certifications (AEC-Q200, pulse withstanding).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original MCR10ERTJ430 specifications.

Q: Can I use a 0.4W or 0.5W rated part in place of the 0.125W original? A: Yes. Higher power-rated parts are suitable for applications where the original 0.125W rating is adequate. The higher rating provides additional thermal margin. Verify that the application does not require the specific thermal characteristics of the original 0.125W part.

Q: What does AEC-Q200 certification mean? A: AEC-Q200 is an automotive qualification standard. Parts with this certification are qualified for automotive applications and meet specific reliability and performance requirements. Use AEC-Q200 certified parts for automotive designs.

Q: Are there any package or footprint differences between substitute parts? A: All listed parts use the 0805 (2012 Metric) package. Physical dimensions are consistent across manufacturers, with minor variations in maximum seated height (0.024" to 0.028"). These variations are within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: Which substitute part has the best availability? A: CR0805-JW-430ELF (25,789 pcs), ERJ-6GEYJ430V (22,639 pcs), and ERJ-P06J430V (18,583 pcs) have the highest inventory levels among active parts.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message