RMCS0805FT6K49 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT6K49 is a 6.49 kOhms ±1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur thick film resistor operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 718 units in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced pulse withstanding capability.

Key Parameters

Parameter	Value
Resistance	6.49 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 is determined by strict equivalence across the following parameters: resistance value (6.49 kOhms), tolerance (±1%), package type (0805 / 2012 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1).

Substitute parts are grouped into two categories:

Category A: Direct Equivalents (Identical Power Rating 0.125W / 1/8W) Parts with matching 0.125W power rating, identical electrical specifications, and compatible physical dimensions. These include RMCF0805FT6K49 (Stackpole, automotive AEC-Q200), AC0805FR-076K49L (YAGEO, automotive AEC-Q200 with moisture resistance), CRCW08056K49FKEA (Vishay Dale, automotive AEC-Q200), ERJ-6ENF6491V (Panasonic, automotive AEC-Q200), and RC0805FR-076K49L (YAGEO, moisture resistant).

Category B: Enhanced Power Rating (0.5W / 1/2W) Parts with identical electrical specifications but higher power dissipation capability (0.5W vs. 0.125W). These include CRCW08056K49FKEAHP (Vishay Dale, pulse withstanding) and RCS08056K49FKEA (Vishay Dale, pulse withstanding). These are suitable for applications requiring higher power handling while maintaining the same resistance and tolerance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Features	Height - Seated (Max)	AEC-Q200	Inventory (Pcs)
RMCS0805FT6K49	Stackpole Electronics Inc	6.49 kOhms	±1%	0.125W	0805	Anti-Sulfur	0.024" (0.60mm)	No	718
RMCF0805FT6K49	Stackpole Electronics Inc	6.49 kOhms	±1%	0.125W	0805	Automotive AEC-Q200	0.026" (0.65mm)	Yes	53419
AC0805FR-076K49L	YAGEO	6.49 kOhms	±1%	0.125W	0805	Automotive AEC-Q200, Moisture Resistant	0.024" (0.60mm)	Yes	15651
CRCW08056K49FKEA	Vishay Dale	6.49 kOhms	±1%	0.125W	0805	Automotive AEC-Q200	0.020" (0.50mm)	Yes	16078
CRCW08056K49FKEAHP	Vishay Dale	6.49 kOhms	±1%	0.5W	0805	Automotive AEC-Q200, Pulse Withstanding	0.020" (0.50mm)	Yes	5806
ERJ-6ENF6491V	Panasonic Electronic Components	6.49 kOhms	±1%	0.125W	0805	Automotive AEC-Q200	0.028" (0.70mm)	Yes	29835
RC0805FR-076K49L	YAGEO	6.49 kOhms	±1%	0.125W	0805	Moisture Resistant	0.024" (0.60mm)	No	99104
RCS08056K49FKEA	Vishay Dale	6.49 kOhms	±1%	0.5W	0805	Automotive AEC-Q200, Pulse Withstanding	0.020" (0.50mm)	Yes	7970

Engineering Selection Recommendations

For Standard Applications (0.125W Power Rating)

RMCF0805FT6K49 (Stackpole) is the manufacturer-recommended direct equivalent with automotive AEC-Q200 qualification and highest inventory availability (53,419 units). This part maintains identical electrical specifications with enhanced automotive-grade reliability.

AC0805FR-076K49L (YAGEO) and CRCW08056K49FKEA (Vishay Dale) are alternative direct equivalents with AEC-Q200 certification. AC0805FR-076K49L includes moisture resistance feature. CRCW08056K49FKEA offers the lowest seated height (0.020").

ERJ-6ENF6491V (Panasonic) provides AEC-Q200 qualification with 29,835 units in stock, suitable for automotive applications requiring qualified component sourcing.

RC0805FR-076K49L (YAGEO) is available in highest quantity (99,104 units) with moisture-resistant construction, suitable for non-automotive applications where moisture resistance is beneficial.

For Enhanced Power Dissipation (0.5W Power Rating)

CRCW08056K49FKEAHP (Vishay Dale) and RCS08056K49FKEA (Vishay Dale) both provide 0.5W power rating with pulse withstanding capability and AEC-Q200 automotive qualification. These are suitable for applications requiring higher power handling while maintaining the same 6.49 kOhms resistance and ±1% tolerance. Both feature 0.020" seated height.

Compliance Considerations

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Parts with AEC-Q200 certification (RMCF0805FT6K49, AC0805FR-076K49L, CRCW08056K49FKEA, CRCW08056K49FKEAHP, ERJ-6ENF6491V, RCS08056K49FKEA) are qualified for automotive applications. RC0805FR-076K49L lacks AEC-Q200 but is suitable for general industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT6K49 directly replace RMCS0805FT6K49?

A: Yes. Both parts share identical resistance (6.49 kOhms), tolerance (±1%), power rating (0.125W), package (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating range (-55°C ~ 155°C). RMCF0805FT6K49 adds automotive AEC-Q200 qualification. Seated height differs by 0.002" (0.65mm vs. 0.60mm), which is negligible for standard PCB assembly.

Q: What is the difference between 0.125W and 0.5W rated parts?

A: Power rating indicates maximum continuous power dissipation capability. 0.125W parts (RMCS0805FT6K49, RMCF0805FT6K49, AC0805FR-076K49L, CRCW08056K49FKEA, ERJ-6ENF6491V, RC0805FR-076K49L) are suitable for standard signal and bias resistor applications. 0.5W parts (CRCW08056K49FKEAHP, RCS08056K49FKEA) accommodate higher power dissipation and pulse withstanding requirements. Electrical specifications (resistance, tolerance, temperature coefficient) remain identical.

Q: Are all substitute parts automotive qualified?

A: No. RMCF0805FT6K49, AC0805FR-076K49L, CRCW08056K49FKEA, CRCW08056K49FKEAHP, ERJ-6ENF6491V, and RCS08056K49FKEA carry AEC-Q200 automotive qualification. RMCS0805FT6K49 and RC0805FR-076K49L do not. Select AEC-Q200 qualified parts for automotive applications.

Q: What does moisture resistance feature provide?

A: AC0805FR-076K49L and RC0805FR-076K49L include moisture-resistant construction. All parts maintain MSL 1 (Unlimited) rating. Moisture resistance provides additional protection in high-humidity environments or applications with extended exposure to moisture.

Q: Which substitute offers best availability?

A: RC0805FR-076K49L (YAGEO) has highest inventory at 99,104 units. RMCF0805FT6K49 (Stackpole) offers 53,419 units with automotive qualification. ERJ-6ENF6491V (Panasonic) provides 29,835 units with AEC-Q200 certification.

Q: Can seated height differences affect PCB assembly?

A: Seated height variations range from 0.020" to 0.028" across substitute parts. These differences are within standard PCB assembly tolerances and do not affect electrical performance or mechanical fit for 0805 package footprints. Verify specific assembly equipment clearance requirements if height-constrained applications exist.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts (main and substitutes) are ROHS3 compliant with MSL 1 moisture sensitivity level.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message