Equivalent & Substitute Parts for 440LS10UH-R

Part Overview

The 440LS10UH-R is a 10000 pF ceramic capacitor manufactured by Vishay Cera-Mite, rated for 760VAC operation with Y5U temperature coefficient. This component is designed for safety-rated applications requiring X1, Y1 ratings and is currently in active production status. Alternative components may be required due to inventory constraints, application-specific voltage requirements, or design optimization needs.

Substiute Parts

440LS10UH-R

Vishay Cera-MiteIn Stock: 1027440LS10UH-R Datasheet

Current PartRFQ

S103M47Z5UN63J7R

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 272436S103M47Z5UN63J7R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 440LS10UH-R is determined by the following critical parameters:

• Capacitance Value: Must be 10000 pF (±20% tolerance acceptable)
• Mounting Type: Through Hole configuration required
• Package Style: Radial, Disc format
• Operating Temperature Range: -30°C ~ 125°C minimum
• RoHS Compliance: ROHS3 Compliant status required
• Voltage Rating: Must meet or exceed 760VAC requirement

The substitute part S103M47Z5UN63J7R meets these criteria with a rated voltage of 1000V (1kV), which exceeds the original specification, providing enhanced voltage margin. Both components share identical capacitance values, tolerance specifications, and operating temperature ranges. The substitute maintains Through Hole mounting and Radial, Disc package configuration.

Parameter Comparison

Engineering Selection Recommendations

Both components are Active status products with ROHS3 compliance and REACH Unaffected certification. The 440LS10UH-R is designated for safety-rated applications with X1, Y1 ratings. The S103M47Z5UN63J7R substitute provides higher voltage rating (1000V versus 760VAC), which offers increased safety margin in the application circuit. Physical dimensions differ between the two components; the substitute is more compact with smaller diameter and reduced height. Lead spacing differs at 7.50mm versus 9.50mm, requiring PCB layout verification. Temperature coefficient differs (Z5U versus Y5U), which may affect capacitance stability across the operating temperature range depending on application requirements.

Frequently Asked Questions (FAQ)

Q: Can S103M47Z5UN63J7R directly replace 440LS10UH-R in all applications?

A: Direct replacement requires verification of three factors: PCB layout compatibility due to different lead spacing (7.50mm versus 9.50mm), physical space availability given the smaller component dimensions, and temperature coefficient performance requirements. The higher voltage rating of the substitute is advantageous for voltage margin but does not affect DC circuit operation.

Q: What is the significance of the different temperature coefficients (Y5U versus Z5U)?

A: Temperature coefficient defines capacitance variation across the operating temperature range. Y5U and Z5U coefficients have different tolerance bands across temperature. Application circuits sensitive to capacitance stability should verify that Z5U performance meets circuit requirements.

Q: Are both components suitable for safety-rated applications?

A: The 440LS10UH-R carries X1, Y1 safety ratings. The S103M47Z5UN63J7R does not list safety ratings in the provided specifications. Safety-rated applications must confirm that the substitute meets required safety certifications before implementation.

Q: What are the physical installation considerations?

A: The substitute component is significantly smaller (0.472" diameter versus 0.850" diameter) and shorter (0.661" height versus 0.976" height). Lead spacing is reduced from 9.50mm to 7.50mm. PCB footprint modification is required for substitution.

Q: Do both components have identical inventory status?

A: The 440LS10UH-R has 936 pieces in stock. The S103M47Z5UN63J7R has 272,341 pieces in stock, indicating substantially higher availability of the substitute component.