440LD22KD-R Equivalent & Substitute Parts

Part Overview

The Vishay Cera-Mite 440LD22KD-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, making equivalent and substitute parts necessary for ongoing design support and procurement. The 440LD22KD-R maintains active alternatives within the same Cera-Mite 440L series, as well as cross-manufacturer options that meet the same electrical and mechanical specifications.

Substiute Parts

440LD22KD-R

Vishay Cera-MiteIn Stock: 900440LD22KD-R Datasheet

Current PartRFQ

440LD22-R

Vishay Cera-MiteIn Stock: 2632440LD22-R Datasheet

DirectRFQ

440LD22AD-R

Vishay Cera-MiteIn Stock: 939440LD22AD-R Datasheet

DirectRFQ

440LD22UG-R

Vishay Cera-MiteIn Stock: 781440LD22UG-R Datasheet

DirectRFQ

440LD22UN1A-R

Vishay Cera-MiteIn Stock: 1127440LD22UN1A-R Datasheet

DirectRFQ

C931U222MVWDBA7317

KEMETIn Stock: 6500C931U222MVWDBA7317 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 440LD22KD-R is determined by strict equivalence across the following parameters: capacitance value (2200 pF), tolerance (±20%), temperature coefficient (Y5U), safety ratings (X1, Y1), mounting type (Through Hole), and package configuration (Radial, Disc). All substitute parts listed maintain identical capacitance, tolerance, temperature coefficient, and safety certifications.

The substitute parts are grouped into two categories:

Vishay Cera-Mite 440L Series (Direct Equivalents): Parts 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R are all active products within the same manufacturer series. These parts differ only in packaging format (Bulk vs. standard) and internal lead configuration, with no impact on electrical performance or mechanical fit.

Cross-Manufacturer Equivalent (KEMET C931U222MVWDBA7317): This KEMET part maintains identical capacitance, tolerance, temperature coefficient, and safety ratings. However, the voltage rating is 400VAC (versus 760VAC for Vishay parts) and the operating temperature range extends to -40°C (versus -30°C for Vishay). The physical dimensions differ slightly (0.394" diameter vs. 0.429" for Vishay), and lead configuration is specified as Formed Leads - Kinked.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct pin-for-pin and mechanical compatibility with the 440LD22KD-R, select from the active Vishay Cera-Mite 440L series alternatives: 440LD22-R, 440LD22AD-R, 440LD22UG-R, or 440LD22UN1A-R. All four parts are ROHS3 compliant and maintain identical electrical specifications and physical dimensions. These parts differ only in packaging format and internal lead configuration, with no functional impact on circuit performance.

The KEMET C931U222MVWDBA7317 is suitable as a substitute only when the application circuit can accommodate a reduced voltage rating of 400VAC (versus the original 760VAC specification) and the slightly different physical dimensions (0.394" diameter vs. 0.429") and lead spacing (0.394" vs. 0.374"). This part offers an extended lower operating temperature limit of -40°C. The KEMET part is ROHS3 compliant and maintains X1, Y1 safety ratings.

Frequently Asked Questions (FAQ)

Q: Can I use the KEMET C931U222MVWDBA7317 as a direct replacement for the 440LD22KD-R?

A: The KEMET part is electrically equivalent in capacitance, tolerance, and temperature coefficient, but has a lower voltage rating (400VAC vs. 760VAC). Use this part only if your circuit operates at or below 400VAC. Additionally, the physical dimensions differ slightly, which may affect PCB layout compatibility.

Q: What is the difference between 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R?

A: All four parts are electrically and mechanically identical. The differences are in packaging format (Bulk vs. standard) and internal lead configuration. For circuit performance and PCB assembly, these parts are fully interchangeable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts, including the KEMET C931U222MVWDBA7317, are ROHS3 compliant and REACH unaffected.

Q: Does the lead spacing difference of the KEMET part affect PCB compatibility?

A: The KEMET C931U222MVWDBA7317 has a lead spacing of 0.394" (10.00mm) compared to 0.374" (9.50mm) for Vishay parts. This difference requires PCB layout verification before substitution.

Q: Why is the 440LD22KD-R obsolete?

A: The 440LD22KD-R is classified as obsolete, but active equivalents within the same Cera-Mite 440L series remain in production. The active alternatives provide continued design support and procurement availability.