Equivalent & Substitute Parts for RMCS1206FT110K

Part Overview

The RMCS1206FT110K is a 110 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently active in production. Equivalent and substitute parts are identified based on matching electrical specifications, package dimensions, and mechanical compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	110 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Substitution Criteria:

Resistance value: 110 kOhms
Tolerance: ±1%
Package / Case: 1206 (3216 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Consideration:

Power Rating: Parts rated at 0.25W (1/4W) are direct equivalents. Parts rated at 0.75W (3/4W) are uprated substitutes suitable for applications requiring higher pulse withstanding capability.

All identified substitute parts meet the primary criteria. The CRCW1206110KFKEAHP variant offers increased power rating (0.75W) while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power (W)	Composition	Temp Coeff	Op Temp (°C)	Package	Features	Product Status
Stackpole Electronics Inc	RMCS1206FT110K	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Anti-Sulfur	Active
Stackpole Electronics Inc	RMCF1206FT110K	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Automotive AEC-Q200	Active
YAGEO	AC1206FR-07110KL	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Automotive AEC-Q200, Moisture Resistant	Active
Bourns Inc.	CR1206-FX-1103ELF	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Moisture Resistant	Active
Vishay Dale	CRCW1206110KFKEA	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Automotive AEC-Q200	Active
Vishay Dale	CRCW1206110KFKEAHP	110 kOhms	±1%	0.75	Thick Film	±100ppm/°C	-55 ~ 155	1206	Automotive AEC-Q200, Pulse Withstanding	Active
Panasonic Electronic Components	ERJ-8ENF1103V	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Automotive AEC-Q200	Not For New Designs
YAGEO	RC1206FR-07110KL	110 kOhms	±1%	0.25	Thick Film	±100ppm/°C	-55 ~ 155	1206	Moisture Resistant	Active

Engineering Selection Recommendations

For Active Production Designs: Select from parts with Active product status: RMCF1206FT110K, AC1206FR-07110KL, CR1206-FX-1103ELF, CRCW1206110KFKEA, CRCW1206110KFKEAHP, or RC1206FR-07110KL. All maintain identical electrical specifications and 1206 package compatibility.

For Automotive Applications: Parts carrying AEC-Q200 certification (RMCF1206FT110K, AC1206FR-07110KL, CRCW1206110KFKEA, CRCW1206110KFKEAHP, ERJ-8ENF1103V) are qualified for automotive use. CRCW1206110KFKEAHP additionally provides pulse withstanding capability for high-stress automotive circuits.

For High-Reliability Applications: CR1206-FX-1103ELF (Bourns) and RC1206FR-07110KL (YAGEO) offer moisture-resistant construction. AC1206FR-07110KL combines both automotive qualification and moisture resistance.

Avoid for New Designs: ERJ-8ENF1103V is marked "Not For New Designs" and should be used only for legacy system maintenance or repair.

For Increased Power Margin: CRCW1206110KFKEAHP provides 0.75W rating versus the standard 0.25W, suitable for applications requiring higher transient pulse withstanding while maintaining identical resistance and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMCS1206FT110K with any of the listed parts? A: Yes, all listed parts with Active product status are direct substitutes. They share identical resistance (110 kOhms), tolerance (±1%), power rating (0.25W), package (1206), and operating temperature range (-55°C to 155°C). ERJ-8ENF1103V is functionally equivalent but marked "Not For New Designs."

Q: What is the difference between the standard 0.25W parts and CRCW1206110KFKEAHP? A: CRCW1206110KFKEAHP is rated at 0.75W (3/4W) with pulse withstanding capability, compared to 0.25W for other substitutes. All other electrical and mechanical parameters remain identical. This higher rating provides additional margin for transient stress conditions.

Q: Are all substitutes ROHS3 compliant? A: Yes, all listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: Which substitutes are suitable for automotive applications? A: Parts with AEC-Q200 certification are automotive-qualified: RMCF1206FT110K, AC1206FR-07110KL, CRCW1206110KFKEA, CRCW1206110KFKEAHP, and ERJ-8ENF1103V.

Q: Do the substitute parts have different physical dimensions? A: Dimensions vary slightly within the 1206 package specification. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), width from 0.061" to 0.063" (1.55mm to 1.60mm), and height from 0.024" to 0.030" (0.60mm to 0.75mm). These variations remain within standard 1206 package tolerances and do not affect PCB layout compatibility.

Q: Which substitute has the highest inventory availability? A: RC1206FR-07110KL (YAGEO) has 168,401 pieces in stock, followed by CR1206-FX-1103ELF (Bourns) with 20,668 pieces.

Q: Can I use moisture-resistant variants in standard applications? A: Yes. Moisture-resistant variants (AC1206FR-07110KL, CR1206-FX-1103ELF, RC1206FR-07110KL) are fully compatible with standard applications and provide additional environmental protection without performance trade-offs.

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