MCR18ERTF2003 Equivalent & Substitute Parts

Part Overview

The MCR18ERTF2003 is a 200 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) surface mount package manufactured by Rohm Semiconductor. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. The MCR series represents a standard general-purpose resistor line with established electrical and mechanical specifications suitable for industrial and commercial applications.

Substitute parts are identified based on matching core electrical parameters: 200 kOhms resistance value, ±1% tolerance, 0.25W power rating, 1206 package form factor, and thick film composition. These parameters define the functional interchangeability envelope for direct replacement applications.

Key Parameters

Parameter	Value
Resistance	200 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic is based on the following core parameters that must match or exceed the MCR18ERTF2003 specifications:

Resistance Value: 200 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.25W minimum (equal or higher acceptable)
Package: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C to 155°C minimum (equal or wider range acceptable)
RoHS Compliance: ROHS3 Compliant (required)
MSL Rating: 1 (Unlimited) (exact match required)

Substitute parts are categorized as direct equivalents (matching all parameters) or upgrades (higher power rating with identical electrical characteristics). All identified substitutes maintain compatibility with the original part's electrical performance and environmental specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	Product Status
MCR18ERTF2003	Rohm Semiconductor	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	—	Discontinued
KTR18EZPF2003	Rohm Semiconductor	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, High Voltage	Active
ESR18EZPF2003	Rohm Semiconductor	200 kOhms	±1%	0.5	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Pulse Withstanding	Active
CR1206-FX-2003ELF	Bourns Inc.	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
CRCW1206200KFKEA	Vishay Dale	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
CRCW1206200KFKEAC	Vishay Dale	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	—	Active
ERJ-8ENF2003V	Panasonic Electronic Components	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Not For New Designs
RC1206FR-07200KL	YAGEO	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
RCV1206200KFKEA	Vishay Dale	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	High Voltage	Active
RMCF1206FG200K	Stackpole Electronics Inc	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
RMCF1206FT200K	Stackpole Electronics Inc	200 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active

Engineering Selection Recommendations

Direct Equivalents (Active Status)

CRCW1206200KFKEAC (Vishay Dale) and RC1206FR-07200KL (YAGEO) provide direct functional equivalence with active product status and established supply availability. Both parts match all electrical and mechanical parameters of the MCR18ERTF2003 without design modifications.

Automotive-Qualified Alternatives

KTR18EZPF2003 (Rohm Semiconductor), CRCW1206200KFKEA (Vishay Dale), RMCF1206FG200K, and RMCF1206FT200K (Stackpole Electronics Inc) incorporate AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability and are recommended for designs with automotive supply chain requirements.

Upgrade Option

ESR18EZPF2003 (Rohm Semiconductor) provides a 0.5W power rating upgrade while maintaining identical electrical characteristics. This part is appropriate for applications where increased power dissipation margin is beneficial, with AEC-Q200 qualification and pulse withstanding capability.

Avoid for New Designs

ERJ-8ENF2003V (Panasonic Electronic Components) carries "Not For New Designs" status and should not be selected for new product development despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.5W rated resistor (ESR18EZPF2003) as a direct replacement for the 0.25W MCR18ERTF2003?

A: Yes. The 0.5W part provides identical electrical performance with increased power dissipation capability. This represents an upgrade path with no functional compromise. The higher power rating does not affect circuit operation in applications designed for 0.25W components.

Q: Are all substitute parts pin-compatible with the MCR18ERTF2003?

A: Yes. All identified substitutes use the 1206 (3216 Metric) package with two terminations in identical configuration. Physical footprint compatibility is maintained across all alternatives.

Q: What is the difference between automotive-qualified (AEC-Q200) and standard versions?

A: AEC-Q200 qualification indicates the part meets automotive industry reliability and testing standards. These parts are suitable for automotive applications and environments with higher reliability requirements. Standard versions are appropriate for general industrial and commercial use.

Q: Why do some substitutes have different physical dimensions listed?

A: Dimensional variations within the 1206 package specification (length 0.120" to 0.126", width 0.061" to 0.063", height 0.024" to 0.030") reflect manufacturer tolerances and design differences. All variations remain within the 1206 package standard and are PCB footprint compatible.

Q: Is moisture sensitivity level (MSL) important for my application?

A: All identified parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity concerns. These parts do not require special moisture control during storage or handling.

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

A: Yes. All substitute parts meet identical electrical specifications and package requirements. Manufacturer substitution is electrically valid. Verify supply chain and procurement requirements for your specific application.

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