440LD22UN-R Equivalent & Substitute Parts

Part Overview

The Vishay Cera-Mite 440LD22UN-R is a 2200 pF ceramic capacitor rated for 760VAC with Y5U temperature coefficient, designed for safety-critical applications. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless board-level substitution.

Substiute Parts

440LD22UN-R

Vishay Cera-MiteIn Stock: 838440LD22UN-R Datasheet

Current PartRFQ

440LD22-R

Vishay Cera-MiteIn Stock: 2632440LD22-R Datasheet

Parametric EquivalentRFQ

440LD22AD-R

Vishay Cera-MiteIn Stock: 939440LD22AD-R Datasheet

Parametric EquivalentRFQ

440LD22UG-R

Vishay Cera-MiteIn Stock: 781440LD22UG-R Datasheet

Parametric EquivalentRFQ

440LD22UN1A-R

Vishay Cera-MiteIn Stock: 1127440LD22UN1A-R Datasheet

Parametric EquivalentRFQ

C931U222MVWDBA7317

KEMETIn Stock: 6500C931U222MVWDBA7317 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parametric equivalence across the following critical criteria:

Electrical Parameters: Capacitance value (2200 pF), tolerance (±20%), voltage rating (760VAC minimum), temperature coefficient (Y5U), and safety ratings (X1, Y1) must be identical.

Mechanical Parameters: Through-hole mounting, radial disc package configuration, lead spacing (0.374" / 9.50mm), and physical dimensions must match or be compatible with PCB footprints designed for the original part.

Compliance & Status: RoHS3 compliance and REACH unaffected status are maintained across all substitutes. Product status transition from obsolete to active alternatives ensures long-term supply availability.

The 440LD22UN-R substitutes into three Vishay Cera-Mite variants (440LD22-R, 440LD22AD-R, 440LD22UG-R, 440LD22UN1A-R) that share identical electrical and mechanical specifications with active product status. The KEMET C931U222MVWDBA7317 is listed as a manufacturer-recommended alternative but operates at reduced voltage rating (400VAC vs. 760VAC) and therefore is not a direct parametric equivalent for applications requiring full 760VAC rating.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred): The Vishay Cera-Mite variants 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R are full parametric equivalents with active product status. All maintain 760VAC voltage rating, identical capacitance and tolerance specifications, matching mechanical dimensions, and equivalent safety certifications. Selection among these four variants may be based on packaging availability (bulk vs. cut tape) and inventory levels.

Manufacturer-Recommended Alternative (Conditional): The KEMET C931U222MVWDBA7317 is listed as a manufacturer-recommended substitute but operates at 400VAC rating versus the original 760VAC specification. This part is suitable only for applications where the circuit design permits operation at reduced voltage rating. Lead spacing (0.394" vs. 0.374") and physical dimensions differ, requiring PCB footprint verification before implementation.

Compliance Continuity: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original design.

Frequently Asked Questions (FAQ)

Q: Can I use the KEMET C931U222MVWDBA7317 as a direct replacement for the 440LD22UN-R?

A: The KEMET part is not a direct parametric equivalent due to reduced voltage rating (400VAC vs. 760VAC). Use only if your application circuit operates at or below 400VAC. Additionally, lead spacing and physical dimensions differ, requiring PCB footprint compatibility verification.

Q: What is the difference between the four Vishay Cera-Mite substitute options?

A: The 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R are electrically and mechanically identical. Differences exist only in packaging format (bulk vs. cut tape) and current inventory availability. Selection should be based on your procurement and assembly requirements.

Q: Are all substitutes PCB footprint compatible with the original 440LD22UN-R?

A: The four Vishay Cera-Mite variants share identical lead spacing (0.374" / 9.50mm) and physical dimensions, ensuring direct PCB footprint compatibility. The KEMET alternative has different lead spacing (0.394" / 10.00mm) and diameter (0.394" vs. 0.429"), requiring footprint verification.

Q: Do the substitute parts maintain the same safety ratings?

A: All recommended substitutes maintain X1 and Y1 safety ratings identical to the original part, ensuring compliance with safety-critical application requirements.

Q: What is the temperature operating range for each substitute?

A: The Vishay Cera-Mite variants operate across -30°C to 125°C, matching the original specification. The KEMET alternative extends the lower temperature limit to -40°C, providing broader environmental coverage if required by your application.