Equivalent & Substitute Parts for 150333K400BB

Part Overview

The 150333K400BB is a 0.033 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE), rated for 400V DC operation with polyester metallized dielectric construction. This axial through-hole component is designed for general-purpose applications requiring stable capacitance performance across a wide operating temperature range of -55°C to 125°C. The part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct functional replacement in circuit designs.

Substiute Parts

150333K400BB

Cornell Dubilier Electronics (CDE)In Stock: 860150333K400BB Datasheet

Current PartRFQ

WMF4S33K-F

Cornell Dubilier Electronics (CDE)In Stock: 4184WMF4S33K-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 150333K400BB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Capacitance value: 0.033 µF (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Voltage Rating - DC: 400V (minimum rating must equal or exceed)
• Dielectric Material: Polyester (same material family)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (PCB insertion compatibility)
• Package / Case: Axial (lead configuration and form factor)
• Termination: PC Pins (solder connection method)

Compliance & Reliability Requirements:

• RoHS Status: ROHS3 Compliant (regulatory alignment)
• Operating Temperature Range: -55°C to 125°C (thermal performance envelope)
• Moisture Sensitivity Level: 1 (storage and handling compatibility)

The WMF4S33K-F qualifies as a direct substitute based on matching all electrical and mechanical parameters within the allowed specification range.

Parameter Comparison

Engineering Selection Recommendations

The WMF4S33K-F serves as a functional equivalent to the 150333K400BB based on identical electrical specifications and matching compliance certifications. Both components are manufactured by Cornell Dubilier Electronics and maintain Active product status with ROHS3 compliance and MSL 1 rating.

Physical Dimension Consideration: The WMF4S33K-F exhibits larger physical dimensions (0.374" Dia x 0.874" L versus 0.236" Dia x 0.650" L). PCB layout space availability must be evaluated prior to substitution. The larger form factor may require design accommodation in confined mounting areas.

Electrical Interchangeability: Identical capacitance (0.033 µF), tolerance (±10%), voltage rating (400V DC), and operating temperature range (-55°C to 125°C) ensure direct electrical substitution without circuit performance degradation.

Compliance Alignment: Both parts maintain equivalent regulatory status (ROHS3 Compliant, REACH Unaffected, EAR99 classification, HTSUS 8532.25.0060), supporting seamless integration into compliant supply chains.

Frequently Asked Questions (FAQ)

Q: Can the WMF4S33K-F replace the 150333K400BB in all applications?

A: Electrical substitution is valid based on matching capacitance, tolerance, voltage rating, and operating temperature specifications. Physical space constraints must be verified, as the WMF4S33K-F is larger (0.374" Dia x 0.874" L versus 0.236" Dia x 0.650" L). PCB layout compatibility is the primary consideration for direct replacement.

Q: Are there voltage derating considerations between these parts?

A: Both components are rated for 400V DC operation. No derating differential exists between the two parts. The 150333K400BB specifies 200V AC rating; the WMF4S33K-F does not specify AC voltage. For AC applications, the 150333K400BB is the specified choice.

Q: Do these parts require different handling or storage procedures?

A: Both components share identical Moisture Sensitivity Level (MSL 1 - Unlimited), indicating equivalent storage and handling requirements. No differential moisture protection or baking procedures are necessary when substituting between these parts.

Q: What is the lead spacing difference between these parts?

A: Lead spacing is not specified in the provided data for either component. Physical dimensions differ, which may affect lead separation on the PCB. Direct measurement or manufacturer datasheet consultation is necessary for precise lead spacing confirmation.

Q: Are both parts suitable for high-temperature applications?

A: Both the 150333K400BB and WMF4S33K-F operate across the identical temperature range of -55°C to 125°C. No thermal performance differentiation exists between the two components for applications within this envelope.

Q: What inventory considerations apply to substitution?

A: The 150333K400BB maintains 765 pieces in stock, while the WMF4S33K-F has 4089 pieces available. Substitute selection may be influenced by inventory availability and supply chain lead time requirements.