MCR18ERTF5113 Equivalent & Substitute Parts

Part Overview

The MCR18ERTF5113 is a 511 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 from active manufacturers. Substitute parts must maintain identical electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package type, dimensions, termination count) to ensure direct replacement capability in existing designs.

Key Parameters

Parameter	Specification
Resistance Value	511 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 ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Resistance Value: Must be 511 kOhms
Tolerance: Must be ±1%
Power Rating: Must be 0.25W (1/4W)
Package Type: Must be 1206 (3216 Metric)
Composition: Must be Thick Film
Temperature Coefficient: Must be ±100ppm/°C
Operating Temperature Range: Must be -55°C ~ 155°C
Termination Count: Must be 2
Environmental Compliance: Must be ROHS3 Compliant and MSL 1

All six substitute parts listed meet these core requirements. Variations in physical dimensions (length, width, height) within the 1206 package specification and differences in product features (automotive qualification, moisture resistance) do not affect functional substitutability but may influence selection based on application requirements and supply availability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Product Status	RoHS	MSL
MCR18ERTF5113	Rohm Semiconductor	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Discontinued	ROHS3	1
KTR18EZPF5113	Rohm Semiconductor	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
CR1206-FX-5113ELF	Bourns Inc.	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
CRCW1206511KFKEA	Vishay Dale	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
ERJ-8ENF5113V	Panasonic Electronic Components	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	ROHS3	1
RC1206FR-07511KL	YAGEO	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
RMCF1206FT511K	Stackpole Electronics Inc	511 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1

Engineering Selection Recommendations

Primary Substitutes (Active Status)

KTR18EZPF5113 (Rohm Semiconductor) is the preferred substitute as it maintains the original manufacturer lineage with active product status. This part includes automotive AEC-Q200 qualification and high voltage features, providing enhanced reliability for demanding applications.

CRCW1206511KFKEA (Vishay Dale), RC1206FR-07511KL (YAGEO), and RMCF1206FT511K (Stackpole Electronics Inc) are all active alternatives with full ROHS3 compliance and MSL 1 rating. CRCW1206511KFKEA and RMCF1206FT511K include AEC-Q200 automotive qualification. CR1206-FX-5113ELF (Bourns Inc.) is active with moisture-resistant features.

Secondary Substitute (Not For New Designs)

ERJ-8ENF5113V (Panasonic Electronic Components) carries "Not For New Designs" status and should be used only for legacy system maintenance or repair applications where supply continuity is critical.

Selection Criteria

Choose substitutes based on: (1) product status preference (active over discontinued or not-for-new-designs), (2) supply availability and lead time, (3) application-specific requirements (automotive qualification if needed), and (4) packaging format (tape & reel availability for production volumes).

Frequently Asked Questions (FAQ)

Q: Can MCR18ERTF5113 be directly replaced with any of these substitute parts?

A: Yes. All listed substitute parts are direct replacements. They share identical electrical specifications (511 kOhms, ±1%, 0.25W), temperature characteristics (±100ppm/°C, -55°C to 155°C), and 1206 package type with 2 terminations. Physical dimensions vary slightly within 1206 specification tolerances but do not affect PCB layout compatibility.

Q: What is the difference between automotive-qualified and non-automotive versions?

A: KTR18EZPF5113, CRCW1206511KFKEA, RMCF1206FT511K, and ERJ-8ENF5113V include AEC-Q200 automotive qualification, indicating compliance with automotive reliability and environmental stress testing standards. Non-automotive versions (CR1206-FX-5113ELF, RC1206FR-07511KL) meet standard industrial specifications. Selection depends on application requirements.

Q: Why is ERJ-8ENF5113V marked "Not For New Designs"?

A: This designation indicates the manufacturer has transitioned the product to end-of-life status and recommends against use in new circuit designs. It remains available for existing product support and repair applications.

Q: Are all substitutes available in tape & reel packaging?

A: Yes. All substitute parts listed are supplied in tape & reel (TR) format, suitable for automated assembly processes.

Q: Do moisture-resistant features affect substitutability?

A: No. Moisture resistance (featured in CR1206-FX-5113ELF and RC1206FR-07511KL) is an additional capability that does not impact core electrical or mechanical compatibility. These parts are fully interchangeable with non-moisture-resistant versions.

Q: What inventory levels are available for these substitutes?

A: Current stock levels range from 9,729 to 43,765 pieces across all substitute parts, with RC1206FR-07511KL (YAGEO) showing the highest availability at 43,765 pieces.

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