RMCS0805FT4K53 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT4K53 is a 4.53 kOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur composition and is designed for general-purpose applications requiring precision resistance values. The part is currently active in production with 927 units in stock. Substitute parts are necessary when the primary part is unavailable, when specific certifications (such as AEC-Q200 automotive qualification) are required, or when alternative sourcing improves supply chain resilience.

Key Parameters

Parameter	Value
Resistance	4.53 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 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

Substitution eligibility for the RMCS0805FT4K53 is determined by the following critical parameters:

Resistance Value: Must be 4.53 kOhms
Tolerance: Must be ±1%
Power Rating: Must be 0.125W (1/8W)
Package: Must be 0805 (2012 Metric)
Composition: Must be Thick Film
Temperature Coefficient: Must be ±100ppm/°C
Operating Temperature Range: Must be -55°C ~ 155°C
RoHS Compliance: Must be ROHS3 Compliant
Moisture Sensitivity Level: Must be 1 (Unlimited)

All four substitute parts meet these core electrical and mechanical requirements. Differences in secondary features (such as automotive AEC-Q200 certification or moisture-resistant composition) do not prevent substitution but may be relevant for specific application requirements.

Parameter Comparison

Parameter	RMCS0805FT4K53	RMCF0805FT4K53	CRCW08054K53FKEA	ERJ-6ENF4531V	RC0805FR-074K53L
Manufacturer	Stackpole Electronics Inc	Stackpole Electronics Inc	Vishay Dale	Panasonic Electronic Components	YAGEO
Resistance	4.53 kOhms	4.53 kOhms	4.53 kOhms	4.53 kOhms	4.53 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package / Case	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 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 ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Height - Seated (Max)	0.024" (0.60mm)	0.026" (0.65mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts are active products with ROHS3 compliance and unlimited moisture sensitivity rating, making them suitable for direct replacement in applications where the RMCS0805FT4K53 is specified.

RMCF0805FT4K53 (Stackpole Electronics Inc) is the manufacturer-recommended substitute. It maintains the same series lineage and adds AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. Height difference of 0.002" (0.05mm) is within typical PCB assembly tolerances.

CRCW08054K53FKEA (Vishay Dale) offers the lowest seated height at 0.020" (0.50mm) and includes AEC-Q200 certification. This part is suitable for space-constrained designs and automotive applications.

ERJ-6ENF4531V (Panasonic Electronic Components) provides AEC-Q200 qualification with the highest seated height at 0.028" (0.70mm). This part is appropriate for automotive designs where component height is not a constraint.

RC0805FR-074K53L (YAGEO) features moisture-resistant composition and matches the seated height of the original part at 0.024" (0.60mm). This option is suitable for general-purpose applications without automotive requirements.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT4K53 be used as a direct replacement for RMCS0805FT4K53?

A: Yes. Both parts share identical electrical specifications (4.53 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C). The primary difference is the addition of AEC-Q200 automotive qualification in the RMCF variant. The seated height difference of 0.002" (0.05mm) is negligible for standard PCB assembly.

Q: What is the significance of AEC-Q200 certification on substitute parts?

A: AEC-Q200 is an automotive qualification standard. Parts bearing this certification have undergone additional reliability testing for automotive applications. If your application does not require automotive qualification, this certification does not affect substitution eligibility.

Q: Are there physical compatibility concerns with the different seated heights?

A: Seated heights range from 0.020" to 0.028" (0.50mm to 0.70mm). These variations are within standard PCB assembly tolerances and do not typically cause compatibility issues. However, in space-constrained designs or applications with strict height requirements, the CRCW08054K53FKEA (0.020" maximum) offers the lowest profile.

Q: Do all substitute parts meet the same environmental and compliance standards?

A: Yes. All parts are ROHS3 compliant, have unlimited moisture sensitivity rating (MSL 1), and operate across the same temperature range (-55°C ~ 155°C). All are classified as REACH Unaffected and carry the same ECCN and HTSUS codes.

Q: Which substitute part should be selected for general-purpose applications?

A: RC0805FR-074K53L (YAGEO) is suitable for general-purpose applications. It provides moisture-resistant composition, matches the original seated height, and maintains all core electrical specifications without the additional cost of automotive certification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message