440LD22ED-R Equivalent & Substitute Parts

Part Overview

The Vishay Cera-Mite 440LD22ED-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 direct replacement in existing designs.

Key Parameters

Parameter	Value
Capacitance	2200 pF
Tolerance	±20%
Voltage Rating	760VAC
Temperature Coefficient	Y5U (E)
Operating Temperature Range	-30°C ~ 125°C
Safety Ratings	X1, Y1
Mounting Type	Through Hole
Package Type	Radial, Disc
Lead Spacing	0.374" (9.50mm)
Diameter	0.429" (10.90mm)
Height (Seated Max)	0.555" (14.10mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: capacitance value, tolerance, voltage rating, temperature coefficient, safety ratings, operating temperature range, mounting type, package configuration, and lead spacing. Parts are grouped into two categories based on these criteria.

Parametric Equivalents (Full Compatibility): Parts maintaining identical specifications across all electrical and mechanical parameters, differing only in packaging format or product status designation. These parts are direct replacements with no design modifications required.

Manufacturer Recommended Equivalent (Voltage Derating Required): Parts matching all specifications except voltage rating, which is lower than the original specification. This category requires engineering evaluation for application suitability.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Operating Temp	Lead Spacing	Diameter	Height (Max)	Product Status	Inventory
440LD22ED-R	Vishay Cera-Mite	2200 pF	±20%	760VAC	Y5U (E)	-30°C ~ 125°C	0.374" (9.50mm)	0.429" (10.90mm)	0.555" (14.10mm)	Obsolete	1121 Pcs
440LD22-R	Vishay Cera-Mite	2200 pF	±20%	760VAC	Y5U (E)	-30°C ~ 125°C	0.374" (9.50mm)	0.429" (10.90mm)	0.555" (14.10mm)	Active	2532 Pcs
440LD22AD-R	Vishay Cera-Mite	2200 pF	±20%	760VAC	Y5U (E)	-30°C ~ 125°C	0.374" (9.50mm)	0.429" (10.90mm)	0.555" (14.10mm)	Active	917 Pcs
440LD22UG-R	Vishay Cera-Mite	2200 pF	±20%	760VAC	Y5U (E)	-30°C ~ 125°C	0.374" (9.50mm)	0.429" (10.90mm)	0.555" (14.10mm)	Active	765 Pcs
440LD22UN1A-R	Vishay Cera-Mite	2200 pF	±20%	760VAC	Y5U (E)	-30°C ~ 125°C	0.374" (9.50mm)	0.429" (10.90mm)	0.555" (14.10mm)	Active	1115 Pcs
C931U222MVWDBA7317	KEMET	2200 pF	±20%	400VAC	Y5U (E)	-40°C ~ 125°C	0.394" (10.00mm)	0.394" (10.00mm)	Not Specified	Active	6483 Pcs

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents): The Vishay Cera-Mite parts 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R are direct functional replacements for the obsolete 440LD22ED-R. All maintain identical electrical ratings (2200 pF, ±20%, 760VAC, Y5U), mechanical dimensions, lead spacing, and safety certifications (X1, Y1). These parts are ROHS3 compliant and REACH unaffected. Selection among these four options is based on packaging availability and inventory requirements, with no technical differentiation.

Secondary Substitute (Voltage Derating): The KEMET C931U222MVWDBA7317 matches all specifications except voltage rating, which is 400VAC versus the original 760VAC specification. This part is suitable only for applications where the actual operating voltage does not exceed 400VAC. The KEMET part features an extended lower operating temperature limit (-40°C versus -30°C) and differs in lead configuration (formed leads - kinked) and lead spacing (0.394" versus 0.374"). This part is ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can 440LD22-R be used as a direct replacement for 440LD22ED-R? A: Yes. The 440LD22-R is a parametric equivalent with identical capacitance, voltage rating, temperature coefficient, safety ratings, and mechanical dimensions. The only difference is product status (active versus obsolete) and packaging designation.

Q: What is the difference between the four Vishay Cera-Mite substitute options? A: The parts 440LD22-R, 440LD22AD-R, 440LD22UG-R, and 440LD22UN1A-R are electrically and mechanically identical. Differences exist only in packaging format and internal manufacturing designations. Selection should be based on packaging availability and supply chain requirements.

Q: Can C931U222MVWDBA7317 replace 440LD22ED-R in all applications? A: No. The KEMET part has a reduced voltage rating of 400VAC compared to the original 760VAC specification. It is suitable only for applications where the actual operating voltage does not exceed 400VAC. Additionally, the lead spacing differs (0.394" versus 0.374"), requiring PCB layout verification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts, including the Vishay Cera-Mite series and the KEMET C931U222MVWDBA7317, are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range difference between substitutes? A: The Vishay Cera-Mite parts operate from -30°C to 125°C. The KEMET C931U222MVWDBA7317 extends the lower limit to -40°C while maintaining the same upper limit of 125°C.

Q: Does lead spacing affect PCB compatibility? A: Yes. The Vishay Cera-Mite parts maintain 0.374" (9.50mm) lead spacing matching the original specification. The KEMET part uses 0.394" (10.00mm) lead spacing, requiring PCB footprint verification before substitution.

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