MCR18ERTF5621 Equivalent & Substitute Parts

Part Overview

The MCR18ERTF5621 is a 5.62 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) 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 and mechanical compatibility to ensure direct board-level replacement without design modification.

Key Parameters

Parameter	Value
Resistance	5.62 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Direct substitutes for MCR18ERTF5621 are classified based on strict equivalence of electrical and mechanical parameters. All substitute parts listed maintain identical resistance value (5.62 kOhms), tolerance (±1%), power rating (0.25W), package format (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and environmental compliance (ROHS3, MSL 1).

Substitutes are grouped into two categories:

Direct Equivalents (0.25W Rating): Parts with identical power rating and electrical specifications, differing only in manufacturer, series designation, and minor dimensional variations within tolerance.

Upgrade Alternative (0.75W Rating): CRCW12065K62FKEAHP provides enhanced pulse withstanding capability at 0.75W power rating while maintaining all other electrical parameters. This part is suitable for applications requiring higher transient energy absorption.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Product Status	Features
MCR18ERTF5621	Rohm Semiconductor	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Discontinued	—
CR1206-FX-5621ELF	Bourns Inc.	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Moisture Resistant
CRCW12065K62FKEA	Vishay Dale	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Automotive AEC-Q200
ERJ-8ENF5621V	Panasonic Electronic Components	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	Automotive AEC-Q200
RC1206FR-075K62L	YAGEO	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Moisture Resistant
RMCF1206FG5K62	Stackpole Electronics Inc	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Automotive AEC-Q200
RMCF1206FT5K62	Stackpole Electronics Inc	5.62 kΩ	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Automotive AEC-Q200
CRCW12065K62FKEAHP	Vishay Dale	5.62 kΩ	±1%	0.75	1206	±100ppm/°C	-55°C ~ 155°C	Active	Automotive AEC-Q200, Pulse Withstanding

Engineering Selection Recommendations

For General Applications: CR1206-FX-5621ELF (Bourns) or RC1206FR-075K62L (YAGEO) are preferred direct substitutes. Both are active products with moisture-resistant composition and full availability.

For Automotive Applications: CRCW12065K62FKEA (Vishay Dale), RMCF1206FG5K62, or RMCF1206FT5K62 (Stackpole Electronics) are qualified to AEC-Q200 automotive standard and maintain identical electrical specifications.

For Enhanced Pulse Withstanding: CRCW12065K62FKEAHP (Vishay Dale) provides 0.75W power rating with pulse withstanding capability while maintaining all other electrical parameters. This upgrade is suitable for circuits experiencing transient overvoltage conditions.

Avoid: ERJ-8ENF5621V (Panasonic) is marked "Not For New Designs" and should not be selected for new product development despite technical equivalence.

Frequently Asked Questions (FAQ)

Q: Can MCR18ERTF5621 be directly replaced with any of these substitutes?

A: Yes. All direct equivalent parts (0.25W rating) maintain identical resistance, tolerance, package, temperature coefficient, and operating range. Physical footprint compatibility is confirmed across all 1206 package variants.

Q: What is the difference between direct equivalents and the upgrade part?

A: Direct equivalents maintain 0.25W power rating identical to MCR18ERTF5621. CRCW12065K62FKEAHP provides 0.75W rating with pulse withstanding capability. The upgrade is suitable only if circuit design permits higher power dissipation.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within manufacturing tolerance. All parts conform to 1206 (3216 Metric) package specification. Maximum seated heights range from 0.024" to 0.030" (0.60mm to 0.75mm), all within standard PCB assembly clearance.

Q: Which substitute offers the best availability?

A: RMCF1206FT5K62 (Stackpole) and CRCW12065K62FKEA (Vishay Dale) show highest inventory levels (27,155 and 18,421 units respectively).

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Q: Can I use automotive-qualified parts in non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts exceed general industrial requirements and are suitable for any application within their electrical and thermal specifications.

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