F1778468M2KLB0 Film Capacitor Equivalent & Substitute Parts

Part Overview

The F1778468M2KLB0 is a 0.68 µF film capacitor manufactured by Vishay Beyschlag/Draloric/BC Components, designed for EMI and RFI suppression applications. This radial polypropylene metallized capacitor operates at 630V DC and maintains active product status with 817 units currently in stock. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain disruptions necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

F1778468M2KLB0

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 871F1778468M2KLB0 Datasheet

Current PartRFQ

BFC233620684

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 2922BFC233620684 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the F1778468M2KLB0 are qualified based on strict electrical and mechanical parameter matching:

Critical Substitution Parameters:

• Capacitance value: 0.68 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 630V DC / 310V AC (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Operating temperature range: -55°C to 110°C (exact match required)
• Mounting configuration: Through Hole, Radial (exact match required)
• Physical dimensions and lead spacing: 31.50mm × 9.00mm with 27.50mm lead spacing (exact match required)
• Termination style: PC Pins (exact match required)

The BFC233620684 qualifies as a parametric equivalent because it maintains all critical electrical specifications, identical physical dimensions, and compatible packaging while originating from the same manufacturer family.

Parameter Comparison

Engineering Selection Recommendations

Both the F1778468M2KLB0 and BFC233620684 are active products from Vishay Beyschlag/Draloric/BC Components with identical electrical and mechanical specifications. Selection between these parts should be based on:

Availability: The BFC233620684 maintains higher inventory levels (2837 units) compared to the F1778468M2KLB0 (817 units), making it suitable for high-volume procurement or extended lead time mitigation.

Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Series Designation: The F1778468M2KLB0 belongs to the F1778X2 series, while the BFC233620684 belongs to the MKP336 2 series. Despite different series designations, parametric equivalence is confirmed through identical electrical and mechanical specifications.

Application Suitability: Both parts are rated for X2 applications with EMI and RFI suppression functionality, maintaining full compatibility in circuit designs requiring 0.68 µF capacitance at 630V DC.

Frequently Asked Questions (FAQ)

Q: Can BFC233620684 be used as a direct replacement for F1778468M2KLB0 in PCB assembly?

A: Yes. Both parts share identical capacitance (0.68 µF), voltage ratings (630V DC / 310V AC), physical dimensions (31.50mm × 9.00mm), lead spacing (27.50mm), and termination style (PC Pins). Direct substitution on through-hole PCB layouts is supported without design modification.

Q: Are there differences in dielectric performance between these two parts?

A: No. Both parts use polypropylene (PP) metallized dielectric material with identical operating temperature ranges (-55°C to 110°C) and tolerance specifications (±20%).

Q: What is the significance of different series designations (F1778X2 vs. MKP336 2)?

A: Series designations reflect internal product line organization within Vishay Beyschlag/Draloric/BC Components. Parametric equivalence is determined by matching electrical and mechanical specifications, not series naming. Both parts meet identical performance criteria for 0.68 µF, 630V DC film capacitor applications.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both F1778468M2KLB0 and BFC233620684 are ROHS3 compliant and REACH Unaffected, satisfying equivalent regulatory requirements for industrial and commercial deployment.

Q: Which part should be selected for new designs?

A: Selection should be based on current inventory availability and supply chain requirements. Both parts are active products with identical specifications. The BFC233620684 offers higher inventory availability (2837 units), while the F1778468M2KLB0 is available with 817 units in stock.