RMCS1206FT4K32 Equivalent & Substitute Parts

Part Overview

The RMCS1206FT4K32 is a 4.32 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor is currently in active production status. Substitute parts are necessary when the primary part experiences supply constraints, when design requirements mandate specific certifications such as AEC-Q200 automotive qualification, or when alternative manufacturers' components offer improved availability or cost optimization while maintaining electrical and mechanical compatibility.

Substiute Parts

RMCS1206FT4K32

Stackpole Electronics IncIn Stock: 780RMCS1206FT4K32 Datasheet

Current PartRFQ

RMCF1206FT4K32

Stackpole Electronics IncIn Stock: 2493RMCF1206FT4K32 Datasheet

MFR RecommendedRFQ

CR1206-FX-4321ELF

Bourns Inc.In Stock: 49744CR1206-FX-4321ELF Datasheet

MFR RecommendedRFQ

CRCW12064K32FKEA

Vishay DaleIn Stock: 32175CRCW12064K32FKEA Datasheet

MFR RecommendedRFQ

ERJ-8ENF4321V

Panasonic Electronic ComponentsIn Stock: 137420ERJ-8ENF4321V Datasheet

MFR RecommendedRFQ

RC1206FR-074K32L

YAGEOIn Stock: 31159RC1206FR-074K32L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT4K32 is determined by strict equivalence across the following parameters: resistance value (4.32 kOhms), 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, MSL 1). All identified substitute parts meet these core electrical and mechanical requirements. Substitute parts are grouped by manufacturer and feature differentiation: Stackpole RMCF1206FT4K32 adds AEC-Q200 automotive qualification; Bourns CR1206-FX-4321ELF provides moisture-resistant construction; Vishay Dale CRCW12064K32FKEA includes AEC-Q200 certification; Panasonic ERJ-8ENF4321V offers AEC-Q200 qualification but is marked Not For New Designs; YAGEO RC1206FR-074K32L provides moisture-resistant construction with active product status.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring automotive qualification, RMCF1206FT4K32 (Stackpole), CRCW12064K32FKEA (Vishay Dale), or ERJ-8ENF4321V (Panasonic) are qualified to AEC-Q200 standard. The Panasonic ERJ-8ENF4321V carries a Not For New Designs status and should be avoided in new circuit development. For general industrial applications without automotive requirements, CR1206-FX-4321ELF (Bourns) and RC1206FR-074K32L (YAGEO) provide moisture-resistant construction with active product status. All substitute parts maintain identical electrical specifications and 1206 package compatibility with the primary RMCS1206FT4K32 part.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206FT4K32 replace RMCS1206FT4K32 in non-automotive applications? A: Yes. Both parts share identical electrical parameters (4.32 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C). The RMCF variant adds AEC-Q200 automotive qualification, which does not restrict use in general applications.

Q: What is the difference between anti-sulfur and moisture-resistant features? A: Anti-sulfur construction (RMCS1206FT4K32) protects against sulfur-containing atmospheric corrosion. Moisture-resistant construction (CR1206-FX-4321ELF, RC1206FR-074K32L) provides protection against humidity ingress. Both are ROHS3 compliant with MSL 1 rating.

Q: Is ERJ-8ENF4321V suitable for new designs? A: No. This part is marked Not For New Designs. Use RMCF1206FT4K32, CRCW12064K32FKEA, or CR1206-FX-4321ELF for new circuit development.

Q: Are all substitute parts available in 1206 package only? A: Yes. All listed substitute parts are specified in 1206 (3216 Metric) package format, ensuring direct mechanical and electrical compatibility.

Q: Do dimensional variations between substitute parts affect PCB layout? A: Dimensional variations exist within tolerance ranges (length 0.122" to 0.126", width 0.061" to 0.063", height 0.024" to 0.030"). Standard 1206 PCB footprints accommodate these variations. Verify specific board design requirements if tight spacing constraints exist.

Q: Which substitute part has the highest inventory availability? A: ERJ-8ENF4321V (Panasonic) shows 137,406 pieces in stock. However, this part is Not For New Designs. Among active-status alternatives, CR1206-FX-4321ELF (Bourns) has 49,690 pieces available.