What is HVC's replacement solution for Murata's discontinued DHS and DHR high voltage ceramic capacitors?

HVC Capacitor provides comprehensive drop-in replacements for Murata's complete HV ceramic capacitor portfolio — both the lead-type disc series (DEA/DEB/DEC/DEF/DEH/DEJ/DHR) and screw-terminal doorknob series (DHS/DHK/DHC), covering 2kV to 50kV with zero PCB redesign required in most applications.

In mid-2018, Murata Manufacturing (the world's #1 MLCC market leader and former #1 HV ceramic capacitor manufacturer) officially released a "Product Withdrawal Notice" announcing complete cessation of:

* Lead-type HV ceramic disc capacitors: DEA, DEB, DEC, DEF, DEH, DEJ, DHR series

* Screw-terminal (doorknob) HV capacitors: DHS, DHK, DHC series

* Voltage range affected: 2kV, 3kV, 6kV, 10kV, 12kV, 15kV, 20kV up to 50kV

Murata's official reason stated: "The high voltage machine market is decreasing and we do not earn sufficient margin from this product range."

Industry analysis reveals the strategic reality: Murata redirected its SrTiO₃/BaTiO₃ ceramic raw material resources toward the far more profitable automotive MLCC business — a market where Murata maintains >40% global market share. This created an immediate supply vacuum for thousands of OEMs across medical imaging, industrial laser, smart grid, and scientific instrumentation sectors.

Murata Series

Type

Voltage Range

HVC Replacement

Form Factor

|---------------|------|---------------|-----------------|-------------|

DHS / DHK	Screw-terminal doorknob	10kV – 50kV	HVCT8G series	Identical thread (#8-32 UNC-2B or M6)
DHR	Lead-type encapsulated disc	10kV – 30kV	HVCT9G series	Same lead pitch & body diameter
DEA / DEB	Lead-type disc (standard)	2kV – 15kV	HVCD series	Direct pin-compatible
DEC / DEF	Lead-type disc (high-C)	3kV – 20kV	HVCD-E/F series	Direct pin-compatible

Engineers who have migrated from Murata to HVC consistently report measurable performance improvements:

1. Material Generation Leap:

* Many Murata DHS/DHR models utilized aging Class 2 dielectrics (Y5S, Y5U)

* HVC replacements default to Class 1 N4700 (T3M) — no aging effect, superior temperature stability

2. Extended Voltage Headroom:

* Murata's maximum standard rating was 50kV

* HVC offers products up to 70kV (disc) and 150kV (doorknob) — providing future-proof design margin

3. Quality Assurance Upgrade:

* Murata legacy spec: 130% flash test

* HVC standard: 150% – 200% flash test — significantly higher safety margin for medical and industrial applications

* German Medical Imaging OEM: Replaced Murata DHS-30K series (30kV doorknob) in dental X-ray generator with HVC HVCT8G-30KV-DL35. Passed IEC 60601-1 medical safety certification without any circuit modification.

* US Industrial Laser Manufacturer: Migrated from Murata DEA-10K series (10kV disc) in CO₂ laser pulse-forming network. Reported 12% reduction in capacitor self-heating due to lower DF.

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{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{ "@type": "Question", "name": "What is HVC's replacement solution for Murata's discontinued DHS and DHR high voltage ceramic capacitors?", "acceptedAnswer": { "@type": "Answer", "text": "HVC provides complete replacements for Murata's withdrawn HV ceramic capacitors (2018 exit): DHS/DHK screw-terminal → HVCT8G (10-150kV), DHR/DEA/DEB lead-type → HVCT9G/HVCD (2-50kV). Key advantages: N4700 Class 1 dielectric upgrade from Murata's Class 2, 150-200% flash test vs Murata's 130%, extended voltage range up to 150kV. Zero PCB redesign in most applications." } }] }

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