RMCS0805FT100K Equivalent & Substitute Parts

Part Overview

The RMCS0805FT100K is a 100 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor is designed for general-purpose applications requiring standard tolerance and power dissipation. The part is active and widely available with 995 pieces in current stock. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count, operating temperature range).

Key Parameters

Parameter	Value
Resistance	100 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Operating Temperature	-55°C ~ 155°C
Temperature Coefficient	±100ppm/°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RMCS0805FT100K is determined by the following critical parameters:

Primary Matching Criteria:

Resistance value: 100 kOhms
Package / Case: 0805 (2012 Metric)
Number of Terminations: 2
Operating Temperature Range: -55°C ~ 155°C
Composition: Thick Film

Secondary Compatibility Factors:

Tolerance: ±1% (standard tolerance group)
Power Rating: 0.125W (1/8W) for direct equivalents; higher power ratings (0.5W) are upgrades
Temperature Coefficient: ±100ppm/°C
RoHS and REACH compliance status

Substitute parts are grouped into two categories:

Direct Equivalents (Same Power Rating - 0.125W): Parts with identical electrical and mechanical specifications, differing only in manufacturer or specific feature set (anti-sulfur, automotive qualification).

Upgraded Substitutes (Higher Power Rating - 0.5W): Parts with enhanced power dissipation capability while maintaining all other core parameters. These provide additional thermal margin and pulse withstanding capability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	Features	RoHS Status	AEC-Q200
RMCS0805FT100K	Stackpole	100k	±1%	0.125	0805	±100ppm/°C	-55~155	Anti-Sulfur	ROHS3	No
RMCF0805FT100K	Stackpole	100k	±1%	0.125	0805	±100ppm/°C	-55~155	Automotive AEC-Q200	ROHS3	Yes
AF0805FR-07100KL	YAGEO	100k	±1%	0.125	0805	±100ppm/°C	-55~155	Anti-Sulfur, AEC-Q200	ROHS3	Yes
ERJ-S06F1003V	Panasonic	100k	±1%	0.125	0805	±100ppm/°C	-55~155	Anti-Sulfur, AEC-Q200	ROHS3	Yes
ERJ-UP6F1003V	Panasonic	100k	±1%	0.5	0805	±100ppm/°C	-55~155	Anti-Sulfur, AEC-Q200, Pulse Withstanding	ROHS3	Yes
AC0805FR-07100KL	YAGEO	100k	±1%	0.125	0805	±100ppm/°C	-55~155	AEC-Q200, Moisture Resistant	ROHS3	Yes
CRCW0805100KFKEA	Vishay Dale	100k	±1%	0.125	0805	±100ppm/°C	-55~155	AEC-Q200	ROHS3	Yes
CRCW0805100KFKEAHP	Vishay Dale	100k	±1%	0.5	0805	±100ppm/°C	-55~155	AEC-Q200, Pulse Withstanding	ROHS3	Yes
CRCW0805100KFKTA	Vishay Dale	100k	±1%	0.125	0805	±100ppm/°C	-55~155	AEC-Q200	RoHS Non-compliant	Yes
ERJ-6ENF1003V	Panasonic	100k	±1%	0.125	0805	±100ppm/°C	-55~155	AEC-Q200	ROHS3	Yes
ERJ-P06D1003V	Panasonic	100k	±0.5%	0.5	0805	±100ppm/°C	-55~155	AEC-Q200, Pulse Withstanding	ROHS3	Yes
ERJ-P06F1003V	Panasonic	100k	±1%	0.125	0805	±100ppm/°C	-55~155	AEC-Q200	ROHS3	Yes

Engineering Selection Recommendations

For Direct Replacement (Same Specifications):

Select from RMCF0805FT100K, AF0805FR-07100KL, ERJ-S06F1003V, AC0805FR-07100KL, CRCW0805100KFKEA, ERJ-6ENF1003V, or ERJ-P06F1003V when the application requires 0.125W power dissipation and ±1% tolerance. All listed direct equivalents are ROHS3 compliant and carry AEC-Q200 automotive qualification, providing enhanced reliability over the original RMCS0805FT100K.

For Upgraded Performance (Higher Power Rating):

Select ERJ-UP6F1003V, CRCW0805100KFKEAHP, or ERJ-P06D1003V when the application benefits from 0.5W power dissipation and pulse withstanding capability. These parts maintain the same package footprint and operating temperature range while providing additional thermal margin. ERJ-P06D1003V offers tighter ±0.5% tolerance as an additional upgrade.

Compliance Considerations:

CRCW0805100KFKTA is RoHS non-compliant and REACH affected; use only when legacy compliance requirements are specified. All other substitutes maintain ROHS3 compliance and REACH unaffected status.

Packaging Selection:

RMCF0805FT100K, ERJ-S06F1003V, ERJ-UP6F1003V, CRCW0805100KFKEAHP, and CRCW0805100KFKTA are supplied in Tape & Reel (TR) packaging. AC0805FR-07100KL, CRCW0805100KFKEA, and ERJ-6ENF1003V are supplied in Cut Tape (CT) & Digi-Reel® packaging. Select based on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-P06D1003V be used as a direct substitute for RMCS0805FT100K?

A: ERJ-P06D1003V is functionally compatible but represents an upgrade. It maintains 100 kOhms resistance and 0805 package, but offers ±0.5% tolerance (tighter than ±1%) and 0.5W power rating (higher than 0.125W). It is suitable for applications where improved tolerance and thermal performance are beneficial or required.

Q: What is the difference between direct equivalents and upgraded substitutes?

A: Direct equivalents (0.125W rating) match the original part's power dissipation capability and are suitable for direct board-level replacement. Upgraded substitutes (0.5W rating) provide higher power handling and pulse withstanding features, useful for applications with higher current transients or thermal stress. Both maintain the same 0805 package and operating temperature range.

Q: Are all substitute parts automotive qualified?

A: All listed substitutes except the original RMCS0805FT100K carry AEC-Q200 automotive qualification. If automotive qualification is not required, any substitute is acceptable. If automotive qualification is required, select from the AEC-Q200 qualified options.

Q: Does package type (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Package type affects only procurement, storage, and assembly handling. Electrical and thermal performance are identical between Tape & Reel and Cut Tape & Digi-Reel® variants of the same part number.

Q: Can I use CRCW0805100KFKTA in new designs?

A: CRCW0805100KFKTA is RoHS non-compliant and REACH affected. It is suitable only for legacy product support or applications where RoHS compliance is not mandated. For new designs, select ROHS3 compliant alternatives.

Q: What is the significance of anti-sulfur and moisture-resistant features?

A: Anti-sulfur and moisture-resistant features enhance long-term reliability in harsh environments. AF0805FR-07100KL includes anti-sulfur protection. AC0805FR-07100KL includes moisture resistance. These features are optional enhancements; standard parts without these features are suitable for controlled environments.

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