CD70-B2GA221KYVKA Equivalent & Substitute Parts

Part Overview

The CD70-B2GA221KYVKA is a 220 pF ceramic capacitor rated for 440VAC operation, manufactured by TDK Corporation. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The part is designed for safety-critical applications with X1, Y1 ratings and operates across a temperature range of -25°C to 105°C. Identification of compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

CD70-B2GA221KYVKA

TDK CorporationIn Stock: 1053CD70-B2GA221KYVKA Datasheet

Current PartRFQ

CD45-B2GA221K-VKA

TDK CorporationIn Stock: 1089CD45-B2GA221K-VKA Datasheet

DirectRFQ

VY1221K31Y5SQ6UV0

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 890VY1221K31Y5SQ6UV0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD70-B2GA221KYVKA is determined by the following critical parameters:

• Capacitance Value: Must be 220 pF ±10%
• Voltage Rating: Must meet or exceed 440VAC
• Safety Ratings: Must maintain X1, Y1 classification
• Mounting Configuration: Through Hole with Radial, Disc package
• Lead Spacing: 0.394" (10.00mm) for PCB compatibility
• Compliance: ROHS3 Compliant status required

Two substitute parts meet these criteria with varying operational characteristics. The CD45-B2GA221K-VKA maintains identical voltage and temperature coefficient specifications. The VY1221K31Y5SQ6UV0 provides enhanced voltage margin and extended temperature range, with a different temperature coefficient classification.

Parameter Comparison

Engineering Selection Recommendations

CD45-B2GA221K-VKA is the primary substitute for direct replacement applications. This part maintains identical voltage rating (440VAC), temperature coefficient (B), and safety ratings (X1, Y1) as the original CD70-B2GA221KYVKA. Both components are manufactured by TDK Corporation and share the same capacitance and tolerance specifications. The CD45 variant is currently in active production status with confirmed inventory availability. The operating temperature range is reduced to -25°C ~ 85°C compared to the original specification; this difference must be evaluated against specific application requirements.

VY1221K31Y5SQ6UV0 serves as an alternative substitute when enhanced voltage margin or extended temperature range is beneficial. This Vishay component provides 760VAC rating, exceeding the 440VAC requirement by 73%, and extends the upper operating temperature to 125°C. The temperature coefficient differs (Y5S versus B), and the physical dimensions are slightly larger. This option is suitable for applications where thermal headroom or voltage derating is advantageous.

Both substitute parts maintain ROHS3 compliance and X1, Y1 safety ratings required for the original application category.

Frequently Asked Questions (FAQ)

Q: Can CD45-B2GA221K-VKA be used as a direct drop-in replacement for CD70-B2GA221KYVKA?

A: Yes, for applications operating within the -25°C to 85°C temperature range. Both parts share identical capacitance (220 pF), tolerance (±10%), voltage rating (440VAC), temperature coefficient (B), and lead spacing (10.00mm). PCB layout and circuit design require no modification.

Q: What is the primary difference between the two substitute options?

A: CD45-B2GA221K-VKA maintains specification parity with the original part. VY1221K31Y5SQ6UV0 provides higher voltage rating (760VAC versus 440VAC) and extended temperature range (-40°C to 125°C versus -25°C to 85°C), but uses a different temperature coefficient (Y5S versus B) and has larger physical dimensions.

Q: Are both substitute parts RoHS compliant?

A: Yes, both CD45-B2GA221K-VKA and VY1221K31Y5SQ6UV0 are ROHS3 compliant and maintain X1, Y1 safety ratings.

Q: Does the physical size difference of VY1221K31Y5SQ6UV0 affect PCB compatibility?

A: Lead spacing remains constant at 0.394" (10.00mm) for all three parts, ensuring PCB hole alignment. However, the larger disc diameter (8.00mm versus 6.50mm) and increased height (12.00mm versus 10.50mm) may require clearance verification in confined board layouts.

Q: Which substitute should be selected for new designs?

A: CD45-B2GA221K-VKA is recommended for designs requiring specification continuity with the original CD70-B2GA221KYVKA. VY1221K31Y5SQ6UV0 is appropriate when design margins for voltage or temperature performance are desired.