ECW-F4334HL Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECW-F4334HL is a 0.33 µF film capacitor manufactured by Panasonic Electronic Components, designed for high-frequency and switching applications. This radial through-hole component operates across a temperature range of -40°C to 105°C with a 400V DC voltage rating and ±3% capacitance tolerance. The part is currently in active production status with 760 units available in inventory. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

ECW-F4334HL

Panasonic Electronic ComponentsIn Stock: 799ECW-F4334HL Datasheet

Current PartRFQ

B32522E6334K000

EPCOS - TDK ElectronicsIn Stock: 2998B32522E6334K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECW-F4334HL is determined by the following critical parameters:

• Capacitance value: 0.33 µF (exact match required)
• Voltage rating: 400V DC minimum
• Mounting type: Through hole radial configuration
• Lead spacing: 0.591" (15.00mm) for PCB compatibility
• Termination style: PC pins for soldering compatibility
• Regulatory compliance: ROHS3 compliant status

The B32522E6334K000 qualifies as a substitute based on matching capacitance, voltage rating, mounting type, lead spacing, and termination specifications. Variations in tolerance (±10% vs. ±3%), dielectric material (PET vs. PP), and operating temperature range do not preclude substitution when application requirements permit these deviations.

Parameter Comparison

Engineering Selection Recommendations

Both the ECW-F4334HL and B32522E6334K000 maintain active production status and ROHS3 compliance, supporting long-term availability and regulatory requirements. The ECW-F4334HL provides tighter capacitance tolerance (±3%) and operates within a narrower temperature range (-40°C to 105°C). The B32522E6334K000 offers extended temperature operation (-55°C to 125°C) and reduced physical height (0.492" vs. 0.622"), which may benefit space-constrained applications. Both components share identical lead spacing and voltage ratings, ensuring direct PCB compatibility. Selection between these parts depends on application-specific requirements for tolerance precision, thermal operating range, and available board space.

Frequently Asked Questions (FAQ)

Q: Can B32522E6334K000 replace ECW-F4334HL in all applications?

A: Both parts share the same capacitance value (0.33 µF), voltage rating (400V DC), lead spacing (15.00mm), and mounting configuration. Substitution is valid when the application tolerates the ±10% tolerance of the B32522E6334K000 and the operating temperature range of -55°C to 125°C. Applications requiring the tighter ±3% tolerance of the ECW-F4334HL require confirmation that the substitute's tolerance is acceptable.

Q: What are the physical differences between these parts?

A: The ECW-F4334HL measures 0.709" L x 0.378" W with a maximum seated height of 0.622". The B32522E6334K000 measures 0.709" L x 0.276" W with a maximum seated height of 0.492". Both maintain the same 0.591" lead spacing. The B32522E6334K000 occupies less board space due to its reduced width and height.

Q: Are both parts compliant with current regulations?

A: Yes. Both the ECW-F4334HL and B32522E6334K000 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What dielectric materials are used in each part?

A: The ECW-F4334HL uses polypropylene (PP) metallized film. The B32522E6334K000 uses polyester (PET) metallized film in a stacked configuration. Both materials are suitable for high-frequency and switching applications.

Q: How do the operating temperature ranges differ?

A: The ECW-F4334HL operates from -40°C to 105°C. The B32522E6334K000 operates from -55°C to 125°C, providing extended low-temperature and high-temperature performance.