Is there a pin-compatible replacement for CK45-B3DD102KYVNA?

No, there is no confirmed pin-compatible replacement that also matches the taped packaging. The closest parts, like CK45-B3DD102KYNNA, are electrically identical but come in bulk packaging, which is a form/fit difference.

What risks should I check before replacing CK45-B3DD102KYVNA?

First, check the packaging: the original is taped, while most alternatives are bulk, which impacts automated manufacturing. Second, for non-TDK parts, verify the dielectric material. The original 'B' type is more stable over temperature than 'Y5P' or 'Y5U' types, which can pose a performance risk.

CK45-B3DD102KYVNA Alternatives, Datasheet & Cross Reference | TDK Electronics AG

Finding a substitute for the TDK CK45-B3DD102KYVNA high-voltage capacitor requires careful attention to both manufacturing and electrical details. Key considerations include the taped packaging for automated assembly and the stable 'B' dielectric material.

AI replacement insight

Package riskmedium

Target is taped for automation; most alternatives are bulk, requiring process change or manual assembly.

Electrical riskhigh

Using non-'B' dielectric alternatives (Y5P/Y5U) can cause capacitance to drift significantly with temperature, affecting circuit stability.

Can it be replaced directly?

No, a direct drop-in replacement is not available. The closest alternatives from TDK have a different packaging (bulk vs. tape), and other candidates have different electrical characteristics.

Best replacement path

The best path is CK45-B3DD102KYNNA if your manufacturing process can handle bulk components instead of taped. It is electrically identical.

Main risk

The primary risk is manufacturing incompatibility due to packaging differences (bulk vs. tape). A secondary high risk is performance degradation from using alternatives with inferior dielectric materials (Y5P, Y5U).

Recommended alternatives

Electrically identical but supplied in bulk packaging, requiring review of manufacturing process.

View details

Alternative comparison matrix

Feature / factor	CK45-B3DD102KYVNA	CK45-B3DD102KYNNA	CK45-B3FD102KYNNA	T10B1D102KN0B0S0N0	Compatibility / risk
Package	Taping	Bulk	Bulk	-	Bulk / Long Straight — Candidate is bulk package, target is taped for automated assembly. Verify manufacturing compatibility.; CK45-B3FD102KYNNA: Candidate is bulk package, target is taped. Verify manufacturing compatibility.; U12E1D102MN0B0S0N0: Different lead type from target's taping.
Voltage	2000.0V	2000.0V	3000.0V	4000.0V	2000.0V / 3000.0V / 4000.0V / 10000.0V — matched; CK45-B3FD102KYNNA: Candidate has a higher voltage rating, which is a safe upgrade.; T10B1D102KN0B0S0N0: Voltage rating is higher, which is a safe upgrade.; U12E1D102MN0B0S0N0: Voltage rating is much higher, which is safe.
Capacitance	1.0e-09F	1.0e-09F	1.0e-09F	-	1.0e-09F — matched; CK45-B3FD102KYNNA: matched
Dielectric	B	B	B	Y5P	B / Y5P / Y5U — matched; CK45-B3FD102KYNNA: matched; T10B1D102KN0B0S0N0: Y5P has different temperature stability characteristics than B. Requires validation.; U12E1D102MN0B0S0N0: Y5U has significantly worse temperature stability (+22/-56%) compared to B (±10%). High risk.
Tolerance	10.0%	10.0%	-	10.0%	10.0% / 20.0% — matched; T10B1D102KN0B0S0N0: matched; U12E1D102MN0B0S0N0: Wider tolerance may not be acceptable for the application.
Temperature	-25°C to 105°C	-	-	-25°C to 85°C	-25°C to 85°C — Candidate has a narrower operating temperature range.

Application & sourcing insights

Questions & answers

The best alternative is CK45-B3DD102KYNNA, which is electrically identical. However, it comes in a bulk package, not taped like the original, so you must verify it's compatible with your assembly process.