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

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

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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.

Need more details? Contact sales@hv-caps.com or call +86-13689553728 for technical support and quotation.

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