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150334K100EB Film Capacitor Equivalent & Substitute Parts
Part Overview
The 150334K100EB is a 0.33 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) in the 150 series. This axial-mounted through-hole component features polyester metallized dielectric construction with a 100V DC voltage rating and ±10% capacitance tolerance. The part is classified as obsolete, making identification of functionally equivalent active alternatives essential for ongoing production and maintenance applications. Substitute parts must maintain electrical performance across general-purpose circuit applications while meeting current manufacturing and compliance standards.
Substiute Parts
Key Parameters
| Parameter | Value | Significance for Substitution |
|---|---|---|
| Capacitance | 0.33 µF | Critical - must match exactly |
| Voltage Rating (DC) | 100V | Critical - minimum requirement |
| Tolerance | ±10% | Critical - circuit design parameter |
| Dielectric Material | Polyester, Metallized | Critical - electrical characteristics |
| Mounting Type | Through Hole, Axial | Critical - PCB compatibility |
| Operating Temperature Range | -55°C to 125°C | Important - environmental performance |
| Termination | PC Pins | Important - soldering compatibility |
| RoHS Status | ROHS3 Compliant | Important - regulatory compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the 150334K100EB is determined by strict equivalence across the following parameters:
Mandatory Equivalence Criteria:
- Capacitance value: 0.33 µF (exact match required)
- DC voltage rating: 100V minimum
- Tolerance: ±10%
- Dielectric type: Polyester metallized construction
- Mounting configuration: Through-hole axial
- Termination style: PC pins
- Operating temperature range: -55°C to 125°C minimum
- RoHS3 compliance status
Acceptable Variation:
- Physical dimensions may vary within PCB layout constraints
- AC voltage rating may differ if DC rating is maintained
- Product series designation differs (150, MMP, WMF series)
- Packaging format (Bulk vs. standard)
- Inventory status and availability
The two identified substitutes (MMP1P33K-F and WMF1P33K-F) satisfy all mandatory equivalence criteria and are classified as active products, providing long-term supply continuity for the obsolete 150334K100EB.
Parameter Comparison
| Parameter | 150334K100EB | MMP1P33K-F | WMF1P33K-F |
|---|---|---|---|
| Manufacturer | Cornell Dubilier Electronics | Cornell Dubilier Electronics | Cornell Dubilier Electronics |
| Capacitance | 0.33 µF | 0.33 µF | 0.33 µF |
| Tolerance | ±10% | ±10% | ±10% |
| Voltage Rating (DC) | 100V | 100V | 100V |
| Voltage Rating (AC) | 63V | 65V | Not specified |
| Dielectric Material | Polyester, Metallized | Polyester, Metallized | Polyester |
| Operating Temperature | -55°C to 125°C | -55°C to 125°C | -55°C to 125°C |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | Axial | Axial | Axial |
| Termination | PC Pins | PC Pins | PC Pins |
| Product Status | Obsolete | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Primary Substitute: WMF1P33K-F
The WMF1P33K-F is the preferred substitute for the obsolete 150334K100EB. Both components share identical electrical specifications (0.33 µF, ±10%, 100V DC) and are manufactured by the same supplier. The WMF series is an active product line with substantial inventory availability (2,893 pcs), ensuring supply continuity. This part maintains full ROHS3 compliance and REACH unaffected status. The axial through-hole configuration with PC pin termination provides direct PCB compatibility. Physical dimensions differ (0.413" Dia x 1.185" L vs. 0.315" Dia x 0.650" L), requiring PCB layout verification but presenting no electrical incompatibility.
Secondary Substitute: MMP1P33K-F
The MMP1P33K-F serves as an alternative substitute with equivalent electrical performance. This part maintains the 0.33 µF capacitance, ±10% tolerance, and 100V DC rating. The MMP series is active with 959 pcs in stock. Physical dimensions (0.433" W, 0.236" T x 0.669" L) differ from the original, requiring PCB layout assessment. The AC voltage rating is slightly higher (65V vs. 63V), providing additional margin in AC applications. ROHS3 compliance and REACH unaffected status are maintained.
Selection Criteria:
- For space-constrained layouts: Evaluate physical dimensions against available PCB footprint space
- For immediate availability: WMF1P33K-F offers the largest inventory
- For AC applications: MMP1P33K-F provides higher AC voltage rating (65V)
- For long-term supply: Both active products ensure sustained availability
All three parts share identical compliance certifications (ROHS3, REACH unaffected, EAR99 ECCN classification, 8532.25.0010 HTSUS code) and MSL rating (1 - Unlimited), eliminating compliance-related substitution barriers.
Frequently Asked Questions (FAQ)
Q: Can WMF1P33K-F directly replace 150334K100EB without circuit modification?
A: Yes, from an electrical standpoint. Both components have identical capacitance (0.33 µF), tolerance (±10%), and DC voltage rating (100V). PCB layout modification may be required due to different physical dimensions. Verify that the WMF1P33K-F dimensions (0.413" Dia x 1.185" L) fit within the available PCB footprint space.
Q: What is the difference between MMP1P33K-F and WMF1P33K-F?
A: Both are functionally equivalent 0.33 µF, 100V DC film capacitors from Cornell Dubilier Electronics. Primary differences are: (1) Physical dimensions—MMP1P33K-F is 0.433" W x 0.236" T x 0.669" L; WMF1P33K-F is 0.413" Dia x 1.185" L; (2) AC voltage rating—MMP1P33K-F rated 65V AC; WMF1P33K-F AC rating not specified; (3) Inventory availability—WMF1P33K-F has higher stock (2,893 vs. 959 pcs); (4) Series designation—MMP series includes "Long Life" feature designation.
Q: Are there any compliance or regulatory differences between the three parts?
A: No. All three parts (150334K100EB, MMP1P33K-F, WMF1P33K-F) are ROHS3 compliant, REACH unaffected, classified as EAR99 for export control, and share the same HTSUS code (8532.25.0010). MSL rating is 1 (Unlimited) for all parts, indicating no moisture sensitivity restrictions.
Q: Why is the 150334K100EB classified as obsolete?
A: The 150 series represents an older product line. Cornell Dubilier Electronics has transitioned production to the MMP and WMF series, which are active product lines offering equivalent electrical performance with modern manufacturing standards and compliance certifications.
Q: Can I use a substitute with a higher voltage rating?
A: Yes. A capacitor rated for higher voltage than required (e.g., 150V instead of 100V) is electrically compatible and provides additional safety margin. However, the minimum voltage rating must equal or exceed the circuit requirement (100V DC in this case).
Q: What should I verify before implementing a substitute in production?
A: (1) PCB footprint compatibility—measure available space against substitute dimensions; (2) Lead spacing and termination alignment with existing solder pads; (3) Thermal environment—confirm operating temperature range (-55°C to 125°C) matches application requirements; (4) AC voltage stress—if applicable, verify AC rating meets circuit demands; (5) Prototype testing—validate circuit performance with substitute component before full production transition.
Q: Are all three parts suitable for high-temperature applications?
A: Yes. All three parts maintain the same operating temperature range (-55°C to 125°C), making them suitable for equivalent thermal environments. No temperature-related substitution restrictions apply.
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