MMWA4S1K-F

Part Overview

The MMWA4S1K-F is a 10000 pF film capacitor manufactured by Cornell Dubilier Electronics (CDE). This through-hole axial component operates at 400V DC with a polyester metallized dielectric and ±10% tolerance. The product is actively manufactured and ROHS3 compliant, serving general-purpose applications requiring stable capacitance across extended temperature ranges (-55°C to 125°C). Equivalent parts are necessary for applications requiring alternative tolerance specifications, packaging configurations, or inventory availability from stock.

Substiute Parts

MMWA4S1K-F

Cornell Dubilier Electronics (CDE)In Stock: 908MMWA4S1K-F Datasheet

Current PartRFQ

150103J400BB

Cornell Dubilier Electronics (CDE)In Stock: 1582150103J400BB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMWA4S1K-F is based on the following compatibility criteria:

• Capacitance Value: Must remain 10000 pF
• Voltage Rating: Must support minimum 400V DC and 200V AC
• Dielectric Type: Must be polyester metallized construction
• Mounting Configuration: Must be through-hole axial mounted with PC pin termination
• Operating Temperature: Must support -55°C to 125°C range
• Compliance: Must maintain ROHS3 compliance

The 150103J400BB qualifies as a direct substitute, meeting all critical electrical parameters while permitting tolerance optimization to ±5% and accommodating minor physical dimension variations consistent with axial package standards.

Parameter Comparison

Engineering Selection Recommendations

Both the MMWA4S1K-F and 150103J400BB are active products with ROHS3 compliance and REACH unaffected status, supporting identical electrical specifications for 10000 pF 400V applications. The primary distinction is tolerance specification: the 150103J400BB provides ±5% tolerance versus ±10% for the MMWA4S1K-F, offering improved capacitance accuracy for precision-critical circuits. Physical dimensions differ slightly due to manufacturing standards, with the 150103J400BB measuring 0.236" diameter × 0.650" length compared to 0.217" diameter × 0.563" length for the MMWA4S1K-F. Component selection should verify PCB layout accommodation for dimensional variance and evaluate whether the tighter tolerance specification provides functional benefit for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the 150103J400BB replace the MMWA4S1K-F in existing designs? A: Yes, provided PCB layout accommodates the larger physical dimensions (0.236" diameter × 0.650" length). Both components share identical capacitance, voltage ratings, dielectric material, and operating temperature specifications.

Q: What is the significance of the tolerance difference between ±10% and ±5%? A: The 150103J400BB tolerance of ±5% provides tighter capacitance accuracy compared to the MMWA4S1K-F at ±10%. Selection depends on whether the application requires the enhanced precision.

Q: Are there thermal or environmental performance differences? A: Both components operate identically across the -55°C to 125°C range with polyester metallized dielectric construction. No functional difference exists for thermal performance or environmental characteristics.

Q: Does packaging format affect electrical performance? A: No. The substitute part is supplied in bulk packaging while the main part uses standard packaging. Bulk packaging does not alter electrical specifications or performance characteristics.

Q: Are both parts suitable for PCB assembly or hand assembly? A: Both are through-hole axial components with PC pin termination suitable for manual insertion or automated wave soldering processes on printed circuit boards.