Würth Elektronik 890324025009CS Film Capacitor Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 890324025009CS is a 0.047 µF film capacitor rated for 275V AC operation with polypropylene dielectric material in a radial through-hole package. This component is classified as Active product status and is ROHS3 compliant. Film capacitors in this specification are commonly used for EMI and RFI suppression applications where reliable AC voltage performance and stable capacitance tolerance are required. Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design requirements allow for compatible voltage ratings and electrical parameters.

Key Parameters

Parameter	Value
Capacitance	0.047 µF
Tolerance	±10%
Voltage Rating - AC	275V
Dielectric Material	Polypropylene (PP), Metallized
Operating Temperature Range	-40°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Radial
Lead Spacing	0.591" (15.00mm)
Ratings	X2
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 890324025009CS is determined by the following critical parameters: capacitance value (0.047 µF), tolerance (±10%), dielectric material (polypropylene metallized), mounting type (through hole radial), lead spacing (15.00mm), and operating temperature range (-40°C ~ 105°C). The voltage rating may be equal to or higher than the original specification without compromising circuit compatibility, as higher voltage-rated components maintain the same electrical performance at lower applied voltages.

The substitute parts are grouped into two categories:

Category 1 - Direct Electrical Equivalent (275V AC): Parts maintaining identical voltage rating and all core electrical parameters.

Category 2 - Voltage-Upgraded Equivalent (310V AC): Parts with elevated voltage rating while maintaining all other electrical and mechanical specifications, suitable for applications where higher voltage margin is acceptable.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Tolerance	Voltage Rating - AC	Dielectric	Operating Temp	Lead Spacing	Inventory Status	Product Status
890324025009CS	Würth Elektronik	WCAP-FTX2	0.047 µF	±10%	275V	PP, Metallized	-40°C ~ 105°C	15.00mm	1419 Pcs	Active
890324025009	Würth Elektronik	WCAP-FTX2	0.047 µF	±10%	275V	PP, Metallized	-40°C ~ 105°C	15.00mm	1016 Pcs	Active
890334025009	Würth Elektronik	WCAP-FTXX	0.047 µF	±10%	310V	PP, Metallized	-40°C ~ 105°C	15.00mm	780 Pcs	Active
890334025009CS	Würth Elektronik	WCAP-FTXX	0.047 µF	±10%	310V	PP, Metallized	-40°C ~ 105°C	15.00mm	904 Pcs	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring continued regulatory support and manufacturing availability. The 890324025009CS and 890324025009 are direct parametric equivalents with identical voltage ratings and series designation, differing only in packaging configuration (CS suffix indicates tape-and-reel packaging versus bulk). These parts are interchangeable for direct replacement in existing designs.

The 890334025009 and 890334025009CS represent voltage-upgraded alternatives with 310V AC rating instead of 275V AC. These parts are mechanically and electrically compatible with the original specification and may be selected when higher voltage margin is required or when the original parts experience supply constraints. The series designation change (WCAP-FTXX versus WCAP-FTX2) reflects manufacturing line differences but does not affect functional performance in the specified application range.

Selection between packaging formats (bulk versus tape-and-reel) should be based on assembly process requirements and procurement volume. All parts share identical physical dimensions, lead spacing, and thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can 890334025009CS be used as a direct replacement for 890324025009CS?

A: Yes. Both parts maintain identical capacitance (0.047 µF), tolerance (±10%), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 105°C), and mechanical specifications (lead spacing 15.00mm, radial through-hole package). The 890334025009CS features a higher voltage rating (310V AC versus 275V AC), which is compatible with circuits designed for 275V operation.

Q: What is the difference between the CS and non-CS part numbers?

A: The CS suffix indicates tape-and-reel packaging format, while the non-CS designation indicates bulk packaging. Electrical and mechanical specifications are identical. Selection depends on assembly equipment compatibility and procurement requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts (890324025009CS, 890324025009, 890334025009, 890334025009CS) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can the 310V rated parts be used in 275V applications?

A: Yes. Higher voltage-rated capacitors operate safely at lower applied voltages. The 890334025009 and 890334025009CS (310V rating) are fully compatible with circuits specified for 275V operation and provide additional voltage margin.

Q: What determines substitution compatibility for this capacitor?

A: Substitution compatibility is determined by capacitance value (0.047 µF), tolerance (±10%), dielectric material (polypropylene metallized), mounting type (through hole radial), lead spacing (15.00mm), and operating temperature range (-40°C ~ 105°C). Voltage rating may be equal to or higher than the original specification.

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