RMCS1206FT107K Equivalent & Substitute Parts

Part Overview

The RMCS1206FT107K is a 107 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur construction and operates across -55°C to 155°C. The part is currently active in production with 1126 units in stock. Substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and specific application requirements such as automotive qualification or enhanced moisture resistance.

Key Parameters

Parameter	Value
Resistance	107 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 for the RMCS1206FT107K is determined by strict equivalence across the following parameters:

Resistance value: 107 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All qualified substitutes maintain these core electrical and mechanical specifications. Variations in physical dimensions (length, width, height) within standard 1206 tolerances and differences in secondary features (anti-sulfur vs. moisture resistant vs. automotive AEC-Q200 qualification) do not affect functional interchangeability in standard applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Product Status	RoHS3	MSL
RMCS1206FT107K	Stackpole Electronics Inc	107 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CR1206-FX-1073ELF	Bourns Inc.	107 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CRCW1206107KFKEA	Vishay Dale	107 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
ERJ-8ENF1073V	Panasonic Electronic Components	107 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	Yes	1
RC1206FR-07107KL	YAGEO	107 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical equivalence to the RMCS1206FT107K. Selection among qualified substitutes should be based on the following factors:

Product Status: CR1206-FX-1073ELF, CRCW1206107KFKEA, and RC1206FR-07107KL are designated as Active products and are recommended for new designs. ERJ-8ENF1073V carries a "Not For New Designs" status and should be used only for legacy system maintenance or where existing supply contracts mandate its use.

Compliance and Certifications: CRCW1206107KFKEA includes automotive AEC-Q200 qualification, making it suitable for automotive and high-reliability applications. CR1206-FX-1073ELF and RC1206FR-07107KL feature moisture-resistant construction. All parts are ROHS3 compliant and carry unlimited MSL rating.

Supply Availability: Inventory levels vary across manufacturers. YAGEO RC1206FR-07107KL (5913 units), Bourns CR1206-FX-1073ELF (25615 units), and Vishay Dale CRCW1206107KFKEA (14034 units) offer different supply positions for procurement planning.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMCS1206FT107K with any of the listed parts without circuit redesign?

A: Yes. All listed substitutes maintain identical electrical specifications (107 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and are packaged in the same 1206 (3216 Metric) form factor. Direct substitution is electrically and mechanically compatible.

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

A: Anti-sulfur construction (RMCS1206FT107K) protects against sulfur-containing atmospheric corrosion. Moisture-resistant construction (CR1206-FX-1073ELF, RC1206FR-07107KL) provides enhanced protection in humid environments. Both are secondary features that do not affect core electrical performance and do not prevent interchangeability.

Q: Why is ERJ-8ENF1073V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product development. It remains functionally equivalent and may be used for legacy system support or maintenance applications.

Q: Are there physical dimension differences between substitutes?

A: Minor variations exist within standard 1206 tolerances. 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 are within standard PCB pad design tolerances and do not affect assembly or performance.

Q: Which substitute should I select for automotive applications?

A: CRCW1206107KFKEA is qualified to automotive AEC-Q200 standard and is the appropriate choice for automotive and high-reliability applications requiring formal qualification documentation.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes carry ROHS3 compliance certification and are suitable for applications requiring RoHS compliance.

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