5SQ102MAAAI Equivalent & Substitute Parts

Part Overview

The 5SQ102MAAAI is a 1000 pF ceramic capacitor rated at 500V with Y5U temperature coefficient, manufactured by KYOCERA AVX in radial disc configuration. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new procurement requirements. The radial through-hole mounting and general-purpose application profile allow for substitution within defined electrical and mechanical parameters.

Substiute Parts

5SQ102MAAAI

KYOCERA AVXIn Stock: 9585SQ102MAAAI Datasheet

Current PartRFQ

D102K25Y5PL6UL5R

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 735D102K25Y5PL6UL5R Datasheet

MFR RecommendedRFQ

FK26X7R2J102KN000

TDK CorporationIn Stock: 1697FK26X7R2J102KN000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5SQ102MAAAI is determined by the following criteria:

Mandatory Parameters (Must Match or Exceed):

• Capacitance: 1000 pF (exact match required)
• Voltage Rating: Minimum 500V (equal or higher acceptable)
• Lead Spacing: 0.197" (5.00mm) (mechanical compatibility)
• Mounting Type: Through Hole (form factor requirement)
• Package Type: Radial configuration (PCB layout compatibility)

Allowable Variations:

• Temperature Coefficient: Y5U, Y5P, or X7R acceptable (different dielectric materials with comparable performance in general-purpose applications)
• Tolerance: ±20% or tighter (±10% acceptable as improvement)
• Operating Temperature Range: May extend beyond -30°C ~ 85°C (wider range acceptable)
• Physical Dimensions: Radial disc format with compatible lead spacing; diameter and height variations acceptable within PCB layout constraints

Two substitute parts meet these criteria with distinct trade-offs in voltage rating and temperature stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

D102K25Y5PL6UL5R (Vishay Beyschlag/Draloric/BC Components): This substitute maintains identical voltage rating (500V) and lead spacing (5.00mm) with improved tolerance (±10% vs. ±20%) and extended operating temperature range (-30°C ~ 125°C). Active product status ensures long-term availability and supply chain stability. ROHS3 compliance supports modern manufacturing requirements. Temperature coefficient Y5P provides comparable performance to Y5U in general-purpose applications. Packaging in Tape & Box format supports automated assembly processes.

FK26X7R2J102KN000 (TDK Corporation): This substitute provides elevated voltage rating (630V) and wider operating temperature range (-55°C ~ 125°C) with X7R temperature coefficient offering superior temperature stability. ROHS3 compliance is confirmed. However, product status is classified as "Not For New Designs," limiting suitability for new development. Formed kinked leads require mechanical accommodation during PCB assembly compared to straight leads of the main part. Bulk packaging may require manual handling.

For ongoing support of existing systems using 5SQ102MAAAI, D102K25Y5PL6UL5R is the preferred substitute due to active product status and direct mechanical compatibility. FK26X7R2J102KN000 is suitable only where elevated voltage margin and extended temperature range justify lead style accommodation and supply chain constraints.

Frequently Asked Questions (FAQ)

Q: Can D102K25Y5PL6UL5R be used as a direct replacement for 5SQ102MAAAI? A: Yes. Both parts share identical capacitance (1000 pF), voltage rating (500V), and lead spacing (5.00mm). The Y5P temperature coefficient of the substitute provides equivalent performance in general-purpose applications. Improved tolerance (±10%) is a functional enhancement.

Q: What is the difference between Y5U and Y5P temperature coefficients? A: Both Y5U and Y5P are Class II ceramic dielectrics with capacitance variation limits across temperature ranges. Y5U specifies -30°C ~ 85°C operation; Y5P extends to -30°C ~ 125°C. For applications within the original -30°C ~ 85°C range, both coefficients are functionally equivalent.

Q: Why is FK26X7R2J102KN000 marked "Not For New Designs"? A: This designation indicates the manufacturer (TDK) is phasing out this product line. While technically suitable as a substitute, procurement for new designs should prioritize active products like D102K25Y5PL6UL5R to ensure long-term supply availability.

Q: Are the physical dimensions of these substitutes compatible with the original PCB layout? A: Lead spacing is identical (5.00mm) for all three parts, ensuring PCB footprint compatibility. D102K25Y5PL6UL5R has straight leads matching the original. FK26X7R2J102KN000 has formed kinked leads, which may require minor assembly process adjustment but remain mechanically compatible with standard radial component mounting.

Q: What compliance certifications apply to these substitutes? A: D102K25Y5PL6UL5R and FK26X7R2J102KN000 are both ROHS3 compliant. All three parts are REACH Unaffected and classified as EAR99 for export control purposes.

Q: Can FK26X7R2J102KN000 be used in place of D102K25Y5PL6UL5R? A: Electrically, yes—the 630V rating exceeds the 500V requirement, and X7R temperature stability is superior. However, the "Not For New Designs" status and kinked lead style make D102K25Y5PL6UL5R the preferred choice for new applications and ongoing production.