CD70-B2GA151KYNKA Equivalent & Substitute Parts

Part Overview

The CD70-B2GA151KYNKA is a 150 pF ceramic capacitor rated for 440VAC operation, manufactured by TDK Corporation. This high-voltage safety-rated component is designed for through-hole mounting in applications requiring X1, Y1 safety classifications. The part is currently active in production with full ROHS3 compliance. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory constraints require component alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

CD70-B2GA151KYNKA

TDK CorporationIn Stock: 1090CD70-B2GA151KYNKA Datasheet

Current PartRFQ

CD45-B2GA151K-NKA

TDK CorporationIn Stock: 1906CD45-B2GA151K-NKA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CD45-B2GA151K-NKA qualifies as a direct substitute for the CD70-B2GA151KYNKA based on the following critical parameters:

• Electrical Equivalence: Identical capacitance (150 pF), tolerance (±10%), and voltage rating (440VAC)
• Safety Classification: Both parts carry X1, Y1 safety ratings for equivalent application use
• Temperature Coefficient: Both use B-type temperature coefficient
• Mounting Compatibility: Both are through-hole mounted with kinked formed leads and identical lead spacing (0.394")
• Regulatory Compliance: Both maintain ROHS3 compliance and EAR99 export classification

Physical dimensions differ slightly between the two parts, with the CD45 variant featuring a smaller body diameter (6.50mm vs 7.00mm) and reduced height (10.50mm vs 11.00mm), while maintaining the same lead spacing for PCB compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the CD70-B2GA151KYNKA and CD45-B2GA151K-NKA are active production parts from TDK Corporation with full ROHS3 compliance and identical electrical specifications. Selection between these parts should be based on:

• PCB Layout Constraints: The CD45 variant occupies less board space due to reduced body diameter and height, making it suitable for compact designs where the CD70 may not fit within available footprint allocations.
• Thermal Environment: The CD70 supports operation to 105°C, while the CD45 is rated to 85°C. Applications requiring the extended upper temperature limit must use the CD70.
• Inventory Availability: Both parts are in active stock. The CD45 currently has higher inventory levels (1861 pcs vs 1066 pcs), which may influence procurement timelines.
• Lead Spacing Compatibility: Identical lead spacing (10.00mm) ensures both parts are compatible with the same PCB hole patterns.

Frequently Asked Questions (FAQ)

Q: Can the CD45-B2GA151K-NKA be used as a direct replacement for the CD70-B2GA151KYNKA?

A: Yes, for applications operating within the -25°C to 85°C temperature range. Both parts have identical electrical ratings (150 pF, 440VAC, ±10%), safety classifications (X1, Y1), and lead spacing. The primary difference is the reduced body size of the CD45 and its lower maximum operating temperature.

Q: What is the impact of the different body dimensions?

A: The CD45 has a smaller diameter (6.50mm vs 7.00mm) and height (10.50mm vs 11.00mm). These dimensions affect PCB layout and component clearance but do not impact electrical performance. Lead spacing remains identical at 10.00mm, ensuring compatibility with existing PCB hole patterns.

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

A: Yes. Both the CD70-B2GA151KYNKA and CD45-B2GA151K-NKA carry X1, Y1 safety ratings and are compliant with ROHS3 regulations, making them suitable for safety-classified applications.

Q: Which part should be selected for high-temperature environments?

A: The CD70-B2GA151KYNKA is rated to 105°C and should be used in applications where ambient or operating temperatures exceed 85°C. The CD45 is limited to 85°C maximum operating temperature.

Q: Do both parts have the same moisture sensitivity?

A: The CD70 lists moisture sensitivity as not applicable. The CD45 is rated MSL 1 (Unlimited), indicating superior moisture resistance characteristics.