Equivalent & Substitute Parts for 440LD50MMAJ-R

Part Overview

The 440LD50MMAJ-R is a 5000 pF ceramic capacitor rated for 760VAC with Y5U temperature coefficient, manufactured by Vishay Cera-Mite. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued system support and procurement. The part is designed for safety-rated applications requiring X1, Y1 ratings and operates across a temperature range of -30°C to 125°C.

Substiute Parts

440LD50MMAJ-R

Vishay Cera-MiteIn Stock: 964440LD50MMAJ-R Datasheet

Current PartRFQ

440LD50-R

Vishay Cera-MiteIn Stock: 1166440LD50-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 440LD50MMAJ-R is determined by strict equivalence across the following critical parameters:

• Capacitance value: 5000 pF
• Voltage rating: 760VAC
• Temperature coefficient: Y5U (E)
• Safety ratings: X1, Y1
• Mounting configuration: Through Hole, Radial, Disc
• Lead spacing: 0.374" (9.50mm)
• Operating temperature range: -30°C ~ 125°C
• Tolerance: ±20%

The substitute part 440LD50-R maintains identical electrical and mechanical specifications, with the primary distinction being product status (Active vs. Obsolete) and packaging format (Bulk vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The 440LD50-R is the direct parametric equivalent for the obsolete 440LD50MMAJ-R. Both components are manufactured by Vishay Cera-Mite within the same 440L series and maintain identical electrical specifications, mechanical dimensions, and safety certifications. The 440LD50-R carries Active product status, ensuring continued availability and supply chain support. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. Selection of the 440LD50-R eliminates obsolescence risk while maintaining full functional and physical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 440LD50-R be used as a direct replacement for the 440LD50MMAJ-R?

A: Yes. The 440LD50-R is a parametric equivalent with identical capacitance (5000 pF), voltage rating (760VAC), temperature coefficient (Y5U), safety ratings (X1, Y1), and physical dimensions. Both components are through-hole mounted with 0.374" lead spacing and fit the same PCB footprint.

Q: What is the primary difference between these two part numbers?

A: The 440LD50MMAJ-R is obsolete, while the 440LD50-R is active. The packaging format differs (standard vs. Bulk), but electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings (1 - Unlimited). Safety ratings (X1, Y1) are equivalent.

Q: Will the 440LD50-R fit the same PCB layout?

A: Yes. Physical dimensions, lead spacing (0.374"), and mounting type (Through Hole, Radial, Disc) are identical. No PCB redesign is required.

Q: Is the 440LD50-R suitable for safety-rated applications?

A: Yes. The 440LD50-R carries X1, Y1 safety ratings identical to the original part and is suitable for the same safety-critical applications.