RMCS1206FT1R50 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT1R50 is a 1.5 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in general-purpose electronic applications requiring precision resistive elements. Substitute parts are identified to provide design flexibility, supply chain alternatives, and compatibility with specific application requirements such as automotive qualification or enhanced environmental performance.

Substiute Parts

RMCS1206FT1R50

Stackpole Electronics IncIn Stock: 655RMCS1206FT1R50 Datasheet

Current PartRFQ

AF1206FR-071R5L

YAGEOIn Stock: 10984AF1206FR-071R5L Datasheet

UpgradeRFQ

AC1206FR-071R5L

YAGEOIn Stock: 13208AC1206FR-071R5L Datasheet

MFR RecommendedRFQ

CRCW12061R50FNEA

Vishay DaleIn Stock: 15903CRCW12061R50FNEA Datasheet

MFR RecommendedRFQ

RC1206FR-071R5L

YAGEOIn Stock: 88407RC1206FR-071R5L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RMCS1206FT1R50 are qualified based on matching the following critical parameters:

• Resistance value: 1.5 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

All identified substitutes maintain these core electrical and mechanical specifications. Variations in features such as automotive qualification (AEC-Q200) and environmental enhancements (anti-sulfur, moisture resistant) are secondary differentiators that do not affect functional interchangeability for standard applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the RMCS1206FT1R50 across standard applications. Selection among alternatives should be based on the following criteria:

AF1206FR-071R5L (YAGEO): Suitable for applications requiring automotive-grade qualification (AEC-Q200) combined with anti-sulfur protection. Recommended for automotive and harsh environment applications.

AC1206FR-071R5L (YAGEO): Recommended for applications requiring automotive qualification (AEC-Q200) with enhanced moisture resistance. Provides dual environmental protection suitable for demanding industrial and automotive environments.

CRCW12061R50FNEA (Vishay Dale): Suitable for automotive applications requiring AEC-Q200 qualification. Offers alternative sourcing from a major resistor manufacturer with established automotive supply chain presence.

RC1206FR-071R5L (YAGEO): Recommended for general-purpose and industrial applications requiring moisture-resistant thick film construction. Provides the highest inventory availability and is suitable for non-automotive applications with environmental exposure concerns.

All substitute parts are ROHS3 compliant, carry MSL rating 1 (Unlimited), and maintain active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can RMCS1206FT1R50 be directly replaced with any of the listed substitutes?

A: Yes. All listed substitutes maintain identical electrical specifications (1.5 Ohms ±1%, 0.25W, ±200ppm/°C, -55°C to 155°C operating range) and package dimensions (1206 / 3216 Metric). Direct replacement is functionally compatible for standard applications.

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

A: Anti-sulfur protection addresses corrosion from sulfur-containing environments, while moisture-resistant construction protects against humidity and condensation. These are distinct environmental enhancements; selection depends on specific application exposure conditions.

Q: Are automotive-qualified parts (AEC-Q200) required for non-automotive applications?

A: No. AEC-Q200 qualification is not required for general-purpose or industrial applications. The RMCS1206FT1R50 and RC1206FR-071R5L are suitable for non-automotive use. Automotive-qualified alternatives (AF1206FR-071R5L, AC1206FR-071R5L, CRCW12061R50FNEA) provide additional qualification but are not necessary unless specified by application requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within tolerance. CRCW12061R50FNEA has a maximum length of 0.126" (3.20mm) compared to 0.122" (3.10mm) for other parts, and a maximum height of 0.024" (0.60mm) compared to 0.026" (0.65mm). These variations remain within 1206 package specifications and do not affect PCB layout compatibility.

Q: What is the significance of MSL rating 1?

A: MSL (Moisture Sensitivity Level) rating 1 indicates unlimited shelf life without moisture-controlled storage requirements. All listed parts carry this rating, eliminating special handling or storage considerations.