RMCS1206FT174R Equivalent & Substitute Parts

Part Overview

The RMCS1206FT174R is a 174 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This component is classified as Active product status with anti-sulfur coating and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements mandate alternative manufacturer certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RMCS1206FT174R

Stackpole Electronics IncIn Stock: 1082RMCS1206FT174R Datasheet

Current PartRFQ

AC1206FR-07174RL

YAGEOIn Stock: 14297AC1206FR-07174RL Datasheet

MFR RecommendedRFQ

CRCW1206174RFKEA

Vishay DaleIn Stock: 24227CRCW1206174RFKEA Datasheet

MFR RecommendedRFQ

ERJ-8ENF1740V

Panasonic Electronic ComponentsIn Stock: 76063ERJ-8ENF1740V Datasheet

MFR RecommendedRFQ

RC1206FR-07174RL

YAGEOIn Stock: 174056RC1206FR-07174RL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT174R is determined by strict equivalence across the following parameters: resistance value (174 Ohms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99). All identified substitute parts meet these core electrical and mechanical requirements. Dimensional variations within the 1206 package specification and differences in feature sets (automotive AEC-Q200 qualification, moisture resistance, anti-sulfur coating) do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

AC1206FR-07174RL (YAGEO) and CRCW1206174RFKEA (Vishay Dale) are preferred substitutes for new designs. Both parts maintain Active product status and carry AEC-Q200 automotive qualification, providing enhanced reliability assurance for applications requiring automotive-grade components. RC1206FR-07174RL (YAGEO) is suitable as an alternative with Active status and moisture-resistant thick film composition. ERJ-8ENF1740V (Panasonic Electronic Components) is electrically and mechanically equivalent but carries "Not For New Designs" product status; this part is acceptable only for legacy system maintenance or replacement applications where the original specification explicitly requires Panasonic sourcing.

Frequently Asked Questions (FAQ)

Q: Can AC1206FR-07174RL replace RMCS1206FT174R in existing designs? A: Yes. Both parts share identical electrical specifications (174 Ohms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C) and 1206 package type. AC1206FR-07174RL adds AEC-Q200 automotive qualification and moisture resistance, making it functionally compatible and suitable for direct substitution.

Q: What is the difference between RMCS1206FT174R and RC1206FR-07174RL? A: Both parts are electrically identical (174 Ohms ±1%, 0.25W, thick film, 1206 package). The primary difference is manufacturer: RMCS is Stackpole Electronics Inc with anti-sulfur coating, while RC is YAGEO with moisture-resistant coating. Both are Active status and ROHS3 compliant.

Q: Why is ERJ-8ENF1740V marked "Not For New Designs"? A: ERJ-8ENF1740V carries "Not For New Designs" product status from Panasonic Electronic Components, indicating the manufacturer is phasing out this part number. While electrically and mechanically equivalent, it should not be selected for new product development. Use AC1206FR-07174RL, CRCW1206174RFKEA, or RC1206FR-07174RL for new designs.

Q: Are all substitute parts available in Tape & Reel (TR) packaging? A: Yes. All listed substitute parts are supplied in Tape & Reel packaging, matching the original RMCS1206FT174R packaging format.

Q: Do dimensional variations between substitute parts affect PCB layout? A: All parts conform to the 1206 (3216 Metric) package specification. Dimensional variations (length 0.122" to 0.126", width 0.061" to 0.063", height 0.024" to 0.028") fall within standard 1206 tolerances and do not require PCB layout modifications.

Q: Which substitute part has the highest inventory availability? A: RC1206FR-07174RL (YAGEO) has the highest inventory at 174,012 pieces. CRCW1206174RFKEA (Vishay Dale) has 24,159 pieces, and AC1206FR-07174RL (YAGEO) has 14,274 pieces.