CD70-B2GA101KYVKA Equivalent & Substitute Parts

Part Overview

The CD70-B2GA101KYVKA is a 100 pF ceramic capacitor rated for 440VAC operation, manufactured by TDK Corporation. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is designed for safety-critical applications with X1, Y1 ratings and operates across a temperature range of -25°C to 105°C. Identifying compatible alternatives ensures design continuity and supply chain reliability.

Substiute Parts

CD70-B2GA101KYVKA

TDK CorporationIn Stock: 751CD70-B2GA101KYVKA Datasheet

Current PartRFQ

CD45-B2GA101K-VKA

TDK CorporationIn Stock: 11100CD45-B2GA101K-VKA Datasheet

DirectRFQ

C901U101KVYDBA7317

KEMETIn Stock: 817C901U101KVYDBA7317 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD70-B2GA101KYVKA is determined by the following critical parameters:

Primary Substitution Criteria:

• Capacitance value: 100 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating: Minimum 440VAC (equal or higher acceptable)
• Temperature coefficient: B or equivalent (Y5P acceptable as B-equivalent)
• Safety ratings: X1, Y1 (required for safety applications)
• Mounting type: Through Hole (required for PCB compatibility)
• Lead spacing: 0.394" (10.00mm) (required for footprint compatibility)
• RoHS compliance: ROHS3 Compliant (required for regulatory compliance)

Identified Substitute Parts:

1. CD45-B2GA101K-VKA (TDK Corporation) – Direct manufacturer alternative with identical electrical specifications and active product status
2. C901U101KVYDBA7317 (KEMET) – Cross-manufacturer substitute with equivalent performance characteristics

Parameter Comparison

Engineering Selection Recommendations

CD45-B2GA101K-VKA (Primary Recommendation)

This TDK part is the preferred substitute. It maintains identical electrical specifications (100 pF, ±10%, 440VAC, B temperature coefficient) and safety ratings (X1, Y1). The part is in active production status, ensuring long-term availability. ROHS3 compliance and identical lead spacing (0.394") guarantee direct PCB compatibility. The reduced operating temperature upper limit (-25°C to 85°C versus -25°C to 105°C) is acceptable for most applications unless the original design specifically requires operation above 85°C.

C901U101KVYDBA7317 (Secondary Alternative)

This KEMET part provides functional equivalence with the following considerations: The voltage rating is 400VAC, which is 40VAC lower than the original 440VAC specification. This part is suitable only for applications where the actual operating voltage does not exceed 400VAC. The temperature coefficient is specified as Y5P (B), which is functionally equivalent to B. The extended operating temperature range (-40°C to 125°C) exceeds the original specification. ROHS3 compliance and identical lead spacing ensure PCB compatibility. This part is in active production status.

Frequently Asked Questions (FAQ)

Q: Can CD45-B2GA101K-VKA be used as a direct replacement for CD70-B2GA101KYVKA?

A: Yes. Both parts share identical capacitance (100 pF), tolerance (±10%), voltage rating (440VAC), temperature coefficient (B), and safety ratings (X1, Y1). Lead spacing and package type are identical. The primary difference is product status (active versus obsolete) and a reduced upper operating temperature limit (85°C versus 105°C). Verify that your application does not require sustained operation above 85°C.

Q: What is the voltage rating limitation of the KEMET C901U101KVYDBA7317?

A: The KEMET part is rated for 400VAC maximum, compared to the original 440VAC specification. This part is suitable only for circuits where the actual applied voltage does not exceed 400VAC. If your application requires 440VAC operation, use the TDK CD45-B2GA101K-VKA instead.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both substitute parts (CD45-B2GA101K-VKA and C901U101KVYDBA7317) are ROHS3 compliant, matching the original part's compliance status.

Q: Do the substitute parts have identical physical dimensions?

A: Lead spacing is identical (0.394" / 10.00mm) for all parts, ensuring PCB footprint compatibility. The CD45-B2GA101K-VKA has a slightly smaller body diameter (0.256" / 6.50mm) compared to the original (0.276" / 7.00mm), but this does not affect electrical performance or mounting compatibility. The KEMET part matches the original body diameter (0.276" / 7.00mm).

Q: What is the difference between temperature coefficient B and Y5P?

A: Both B and Y5P are temperature coefficient classifications for ceramic capacitors. Y5P is functionally equivalent to B for this application. The KEMET part's Y5P specification indicates it meets the same temperature stability requirements as the original B specification.

Q: Are these parts suitable for safety-critical applications?

A: Yes. All parts maintain X1, Y1 safety ratings, which are required for safety-critical applications. This certification is preserved across all substitute options.