RMCS1206FT56R2 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT56R2 is a 56.2 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in general-purpose applications requiring precision resistive elements with anti-sulfur protection. Substitute parts are necessary when the primary manufacturer part becomes unavailable, when specific application requirements demand alternative material compositions or certifications, or when supply chain optimization requires qualified alternatives from different manufacturers.

Key Parameters

Parameter	Value
Resistance	56.2 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT56R2 is determined by strict equivalence across the following critical parameters:

Resistance value: 56.2 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package designation: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS3 compliance
MSL rating: 1 (Unlimited)

All qualified substitute parts meet these electrical and mechanical specifications. Variations in physical dimensions (length, width, height) within the 1206 package tolerance, material features (anti-sulfur vs. moisture resistant), and product status do not affect functional interchangeability in standard applications.

Parameter Comparison

Parameter	RMCS1206FT56R2	CR1206-FX-56R2ELF	CRCW120656R2FKEA	ERJ-8ENF56R2V	RC1206FR-0756R2L
Manufacturer	Stackpole Electronics Inc	Bourns Inc.	Vishay Dale	Panasonic Electronic Components	YAGEO
Resistance	56.2 Ohms	56.2 Ohms	56.2 Ohms	56.2 Ohms	56.2 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W	0.25W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Product Status	Active	Active	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
AEC-Q200 Rated	No	No	Yes	Yes	No

Engineering Selection Recommendations

All four substitute parts are electrically and mechanically equivalent to the RMCS1206FT56R2 and are suitable for direct replacement in standard applications.

For new designs and long-term production programs, select from parts with Active product status: CR1206-FX-56R2ELF (Bourns), CRCW120656R2FKEA (Vishay Dale), or RC1206FR-0756R2L (YAGEO). These parts ensure continued availability and manufacturer support.

For automotive applications requiring AEC-Q200 qualification, CRCW120656R2FKEA (Vishay Dale) is the preferred selection. ERJ-8ENF56R2V (Panasonic) also carries AEC-Q200 rating but is designated Not For New Designs and should be used only for legacy product support or existing design maintenance.

For applications requiring moisture-resistant characteristics, CR1206-FX-56R2ELF (Bourns) and RC1206FR-0756R2L (YAGEO) provide moisture-resistant thick film construction. The RMCS1206FT56R2 features anti-sulfur protection, which addresses different environmental concerns.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the RMCS1206FT56R2?

A: Yes. All listed substitute parts meet the same electrical specifications (56.2 Ohms ±1%, 0.25W), operate across the same temperature range (-55°C to 155°C), use identical thick film composition, and are packaged in the 1206 (3216 Metric) form factor. Physical dimension variations within the 1206 package tolerance do not affect functional interchangeability.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: Anti-sulfur protection (RMCS1206FT56R2) protects against sulfur-containing atmospheric contaminants. Moisture-resistant construction (CR1206-FX-56R2ELF, RC1206FR-0756R2L) provides enhanced protection against humidity and moisture ingress. Both are ROHS3 compliant with MSL 1 rating. Feature selection depends on specific environmental exposure conditions.

Q: Why is ERJ-8ENF56R2V marked "Not For New Designs"?

A: This designation indicates the manufacturer (Panasonic) is phasing out this product line. While the part remains functionally equivalent and suitable for existing designs, new product development should use alternatives with Active status to ensure long-term availability and manufacturer support.

Q: Are these parts suitable for automotive applications?

A: CRCW120656R2FKEA (Vishay Dale) and ERJ-8ENF56R2V (Panasonic) carry AEC-Q200 automotive qualification. The RMCS1206FT56R2, CR1206-FX-56R2ELF, and RC1206FR-0756R2L do not have automotive certification. Use AEC-Q200 rated parts for automotive applications requiring this qualification.

Q: Will the slight differences in physical dimensions affect PCB layout?

A: No. All parts conform to the 1206 (3216 Metric) package standard. Dimension variations (length 0.122" to 0.126", width 0.061" to 0.063", height 0.024" to 0.030") fall within standard package tolerances and do not require PCB layout modifications.

Q: What inventory levels are available for these parts?

A: RMCS1206FT56R2: 1,077 pcs; CR1206-FX-56R2ELF: 30,898 pcs; CRCW120656R2FKEA: 20,653 pcs; ERJ-8ENF56R2V: 32,569 pcs; RC1206FR-0756R2L: 1,309 pcs. Inventory levels are subject to change and should be verified at time of procurement.

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