CS45-B2GA681K-GKA Equivalent & Substitute Parts

Part Overview

The CS45-B2GA681K-GKA is a 680 pF ceramic capacitor rated for 440VAC operation, manufactured by TDK Corporation. This radial, disc-type capacitor is designed for high-voltage applications requiring safety-rated components (X1, Y2 ratings). The part is currently active in production with 862 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or application-specific packaging needs.

Substiute Parts

CS45-B2GA681K-GKA

TDK CorporationIn Stock: 891CS45-B2GA681K-GKA Datasheet

Current PartRFQ

CS45-B2GA681K-NKA

TDK CorporationIn Stock: 2095CS45-B2GA681K-NKA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS45-B2GA681K-GKA is determined by strict equivalence across the following parameters:

• Capacitance value: 680 pF
• Tolerance: ±10%
• Voltage rating: 440VAC
• Temperature coefficient: B
• Operating temperature range: -25°C ~ 125°C
• Safety ratings: X1, Y2
• Mounting type: Through Hole
• Package configuration: Radial, Disc
• Lead spacing: 0.295" (7.50mm)
• RoHS compliance: ROHS3 Compliant

The identified substitute part maintains identical electrical performance and mechanical compatibility, differing only in packaging format (bulk) and inventory source within the same manufacturer product line.

Parameter Comparison

Engineering Selection Recommendations

Both the CS45-B2GA681K-GKA and CS45-B2GA681K-NKA are active production components from TDK Corporation's CS45 series. Both parts maintain full ROHS3 compliance and identical electrical and mechanical specifications. Selection between these parts should be based on availability and supply chain requirements. The CS45-B2GA681K-NKA currently has higher inventory availability (2074 units) compared to the primary part (862 units), making it suitable for high-volume applications or extended lead-time mitigation strategies.

Frequently Asked Questions (FAQ)

Q: Can CS45-B2GA681K-NKA be used as a direct replacement for CS45-B2GA681K-GKA?

A: Yes. Both parts are electrically and mechanically identical, with matching capacitance (680 pF), voltage rating (440VAC), tolerance (±10%), temperature coefficient (B), operating temperature range (-25°C ~ 125°C), safety ratings (X1, Y2), and physical dimensions. They are interchangeable in circuit design and PCB layout.

Q: What is the difference between these two part numbers?

A: The parts differ only in packaging designation within the bulk supply chain. All electrical performance, mechanical specifications, compliance certifications, and physical characteristics are identical.

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

A: Yes. Both parts carry X1 and Y2 safety ratings and are ROHS3 compliant, meeting requirements for safety-rated high-voltage applications.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Identical lead spacing (0.295" / 7.50mm), package type (Radial, Disc), and physical dimensions (0.315" Dia / 8.00mm) ensure direct PCB compatibility without layout modifications.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across -25°C to 125°C, with temperature coefficient B characteristics maintained throughout this range.