CD45-B2GA331K-GKA Equivalent & Substitute Parts

Part Overview

The CD45-B2GA331K-GKA is a 330 pF ceramic capacitor rated for 440VAC operation, manufactured by TDK Corporation. This high-voltage radial disc capacitor is designed for safety-critical applications with X1, Y1 ratings and operates across a temperature range of -25°C to 85°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on identical electrical specifications and mechanical compatibility within the CD series.

Substiute Parts

CD45-B2GA331K-GKA
TDK CorporationIn Stock: 782CD45-B2GA331K-GKA Datasheet
CD45-B2GA331K-GKA
Current Part
CD45-B2GA331K-NKA
TDK CorporationIn Stock: 1956CD45-B2GA331K-NKA Datasheet
CD45-B2GA331K-NKA
Parametric Equivalent

Key Parameters

Parameter Value
Capacitance 330 pF
Tolerance ±10%
Voltage Rating 440VAC
Temperature Coefficient B
Operating Temperature Range -25°C to 85°C
Mounting Type Through Hole
Package Type Radial, Disc
Lead Spacing 0.394" (10.00mm)
Safety Ratings X1, Y1
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CD45-B2GA331K-GKA is determined by strict equivalence across the following critical parameters:

  • Capacitance value: 330 pF
  • Tolerance: ±10%
  • Voltage rating: 440VAC
  • Temperature coefficient: B
  • Operating temperature range: -25°C to 85°C
  • Mounting configuration: Through Hole, Radial, Disc
  • Lead spacing: 0.394" (10.00mm)
  • Safety certifications: X1, Y1 ratings
  • Regulatory compliance: ROHS3 Compliant

The CD45-B2GA331K-NKA meets all these criteria and is classified as a parametric equivalent within the TDK CD series.

Parameter Comparison

Parameter CD45-B2GA331K-GKA CD45-B2GA331K-NKA
Manufacturer TDK Corporation TDK Corporation
Series CD CD
Capacitance 330 pF 330 pF
Tolerance ±10% ±10%
Voltage Rating 440VAC 440VAC
Temperature Coefficient B B
Operating Temperature -25°C to 85°C -25°C to 85°C
Package Type Radial, Disc Radial, Disc
Lead Spacing 0.394" (10.00mm) 0.394" (10.00mm)
Safety Ratings X1, Y1 X1, Y1
RoHS Status ROHS3 Compliant ROHS3 Compliant
Product Status Active Active

Engineering Selection Recommendations

Both the CD45-B2GA331K-GKA and CD45-B2GA331K-NKA are active production parts with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The CD45-B2GA331K-NKA currently has higher inventory availability (1861 pcs) compared to the CD45-B2GA331K-GKA (764 pcs). Both parts maintain ROHS3 compliance and are suitable for safety-critical applications requiring X1, Y1 rated capacitors.

Frequently Asked Questions (FAQ)

Q: Can CD45-B2GA331K-NKA be used as a direct replacement for CD45-B2GA331K-GKA?

A: Yes. Both parts are parametric equivalents with identical capacitance, voltage rating, tolerance, temperature coefficient, operating temperature range, package dimensions, and lead spacing. They are interchangeable for circuit applications.

Q: Are there any differences in safety certifications between these parts?

A: No. Both parts carry identical X1, Y1 safety ratings and ROHS3 compliance status, making them equivalent for safety-critical applications.

Q: What determines if a part can substitute for the CD45-B2GA331K-GKA?

A: A substitute part must match all critical parameters: 330 pF capacitance, ±10% tolerance, 440VAC rating, B temperature coefficient, -25°C to 85°C operating range, 0.394" lead spacing, and radial disc through-hole mounting configuration.

Q: Are there any packaging or lead configuration differences?

A: No. Both parts use identical radial disc packaging with formed kinked leads and 0.394" (10.00mm) lead spacing, ensuring mechanical compatibility with existing PCB layouts.

Q: What is the moisture sensitivity level for these capacitors?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

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