RMCF1206FG18K7 Equivalent & Substitute Parts

Part Overview

The RMCF1206FG18K7 is an 18.7 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This automotive-grade thick film resistor meets AEC-Q200 specifications and operates across -55°C to 155°C. The part is currently active in production with 671 units in stock. Substitute parts are necessary to address supply chain constraints, alternative sourcing requirements, or specific packaging preferences while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	18.7 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF1206FG18K7 is determined by strict equivalence across the following parameters:

Resistance value: 18.7 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W / 1/4W (exact match required)
Package: 1206 (3216 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 (minimum requirement)
Moisture sensitivity: MSL 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria. Variations in physical dimensions (length, width, height) within the 1206 package specification, packaging format (Tape & Reel vs. Cut Tape), and product status do not affect electrical or mechanical compatibility in standard PCB assembly processes.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory
RMCF1206FG18K7	Stackpole Electronics Inc	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	671 Pcs
RMCF1206FT18K7	Stackpole Electronics Inc	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	10114 Pcs
CRCW120618K7FKEA	Vishay Dale	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	38553 Pcs
ERJ-8ENF1872V	Panasonic Electronic Components	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	35329 Pcs
MCR18ERTF1872	Rohm Semiconductor	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Discontinued at DiGi Electronics	5710 Pcs
RC1206FR-0718K7L	YAGEO	18.7 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	41057 Pcs

Engineering Selection Recommendations

Preferred Substitutes (Active Status with AEC-Q200):

RMCF1206FT18K7 (Stackpole Electronics Inc) and CRCW120618K7FKEA (Vishay Dale) are the primary alternatives. Both maintain active product status, full AEC-Q200 automotive compliance, and ROHS3 certification. CRCW120618K7FKEA offers the highest inventory availability at 38553 units.

Secondary Substitutes (Active Status, Limited Automotive Certification):

RC1206FR-0718K7L (YAGEO) is active and ROHS3 compliant with moisture-resistant composition. This part does not carry AEC-Q200 rating but meets all electrical and mechanical parameters. Use only in applications where automotive qualification is not required.

Not Recommended for New Designs:

ERJ-8ENF1872V (Panasonic Electronic Components) carries "Not For New Designs" status despite maintaining AEC-Q200 compliance. MCR18ERTF1872 (Rohm Semiconductor) is discontinued at DiGi Electronics and lacks AEC-Q200 certification. Both should be avoided for new product development.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMCF1206FG18K7 with any of these parts in automotive applications?

A: Only RMCF1206FT18K7 and CRCW120618K7FKEA maintain AEC-Q200 automotive qualification. RC1206FR-0718L lacks automotive certification. ERJ-8ENF1872V and MCR18ERTF1872 should not be used in new automotive designs.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both packaging formats contain electrically and mechanically identical components. Tape & Reel is optimized for high-volume automated assembly. Cut Tape & Digi-Reel is suitable for lower-volume or mixed-component orders. Selection depends on assembly process requirements, not component performance.

Q: Are there dimensional differences between substitute parts?

A: All parts conform to the 1206 (3216 Metric) package specification. Minor variations in seated height (0.024" to 0.028") and length/width (within ±0.006") exist but do not affect PCB assembly compatibility or electrical performance.

Q: Why is ERJ-8ENF1872V marked "Not For New Designs"?

A: This designation indicates the manufacturer is phasing out the product line. While currently in stock and functionally equivalent, new product designs should use actively supported alternatives to ensure long-term supply chain stability.

Q: Can I use RC1206FR-0718K7L as a direct replacement in all applications?

A: RC1206FR-0718K7L is electrically and mechanically compatible but lacks AEC-Q200 automotive certification. Use only in non-automotive applications or where automotive qualification is not a design requirement.

Q: What should I consider when selecting between multiple substitutes?

A: Prioritize product status (Active preferred), compliance certifications (AEC-Q200 for automotive), inventory availability, and packaging format compatibility with your assembly process. All electrically qualified substitutes perform identically in circuit operation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message