CS65-B2GA101KYVKA Equivalent & Substitute Parts

Part Overview

The CS65-B2GA101KYVKA is a 100 pF ceramic capacitor rated for 300VAC/440VAC operation, manufactured by TDK Corporation. This high-voltage safety-rated component is designed for through-hole mounting in applications requiring X1, Y2 safety certifications. The part is currently active in production with 744 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when packaging or inventory constraints require alternative selection.

Substiute Parts

CS65-B2GA101KYVKA

TDK CorporationIn Stock: 825CS65-B2GA101KYVKA Datasheet

Current PartRFQ

CS45-B2GA101K-VKA

TDK CorporationIn Stock: 2383CS45-B2GA101K-VKA Datasheet

DirectRFQ

VY2101K29Y5SS6UV7

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 10990VY2101K29Y5SS6UV7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Capacitance value: 100 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage rating: Minimum 300VAC, with 440VAC as preferred rating
• Safety certifications: X1, Y2 ratings (mandatory for safety applications)
• Mounting type: Through hole with radial, disc configuration
• Lead spacing: 0.295" (7.50mm) standard
• RoHS compliance: ROHS3 Compliant

Two substitute parts meet these criteria:

1. CS45-B2GA101K-VKA (TDK Corporation): Direct TDK alternative with identical electrical specifications and 440VAC rating. Differs in packaging (Cut Tape vs. Tape & Box) and physical dimensions (smaller diameter).

2. VY2101K29Y5SS6UV7 (Vishay Beyschlag/Draloric/BC Components): Manufacturer-recommended alternative with identical capacitance, tolerance, and 440VAC rating. Temperature coefficient differs (Y5S vs. B), with extended lower temperature range (-40°C vs. -25°C). Larger physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

CS45-B2GA101K-VKA is the preferred direct substitute when sourcing from TDK Corporation. This part maintains identical electrical specifications, temperature coefficient, and safety certifications as the main part. The 440VAC rating provides full compatibility with applications rated for 300VAC/440VAC. Physical dimensions are slightly smaller (6.50mm diameter vs. 7.00mm), which may provide layout advantages in space-constrained applications. Cut Tape packaging offers cost efficiency for high-volume production runs.

VY2101K29Y5SS6UV7 serves as a cross-manufacturer alternative when TDK parts are unavailable. This Vishay component maintains all critical electrical parameters and safety certifications. The Y5S temperature coefficient provides extended lower temperature operation (-40°C vs. -25°C), suitable for applications requiring enhanced cold-temperature performance. Larger physical dimensions (7.50mm diameter, 11.50mm height) must be verified against PCB layout constraints. Significantly higher inventory availability (10,894 units) supports rapid procurement.

Both substitutes are ROHS3 compliant and carry active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can CS45-B2GA101K-VKA be used as a direct replacement for CS65-B2GA101KYVKA?

A: Yes. Both parts share identical capacitance (100 pF), tolerance (±10%), temperature coefficient (B), operating temperature range (-25°C ~ 125°C), and safety ratings (X1, Y2). Lead spacing is identical at 0.295" (7.50mm). The primary difference is physical diameter (6.50mm vs. 7.00mm), which must be verified against PCB footprint requirements.

Q: What is the difference between the B and Y5S temperature coefficients?

A: Temperature coefficient designates how capacitance changes with temperature. The B coefficient (CS65 and CS45) and Y5S coefficient (VY2101K29Y5SS6UV7) are distinct classifications. The Y5S coefficient extends the lower operating temperature to -40°C compared to -25°C for the B coefficient. Selection depends on application temperature requirements.

Q: Are all three parts suitable for safety-rated applications?

A: Yes. All three parts carry X1, Y2 safety certifications and are compliant with ROHS3 standards, qualifying them for safety-critical applications requiring these ratings.

Q: Does the physical size difference affect PCB compatibility?

A: Lead spacing remains constant at 0.295" (7.50mm) across all three parts, ensuring hole-to-hole compatibility. However, component diameter and height vary: CS65-B2GA101KYVKA (7.00mm diameter, 7.40mm height), CS45-B2GA101K-VKA (6.50mm diameter), and VY2101K29Y5SS6UV7 (7.50mm diameter, 11.50mm height). PCB layout clearance must be verified before substitution.

Q: Which substitute offers the best inventory availability?

A: VY2101K29Y5SS6UV7 has the highest inventory level at 10,894 units, followed by CS45-B2GA101K-VKA at 2,352 units. Inventory levels support procurement timeline requirements and supply chain continuity.

Q: Can VY2101K29Y5SS6UV7 be used in applications originally designed for CS65-B2GA101KYVKA?

A: Yes, provided PCB layout accommodates the larger physical dimensions (7.50mm diameter, 11.50mm height). All electrical specifications, safety certifications, and voltage ratings are compatible. The extended lower temperature range (-40°C) provides additional operational margin in cold environments.