What is the HVC alternative for Diotec 2CL/BY/DD/HV series high voltage diodes?
HVC Capacitor provides comprehensive replacement solutions covering Diotec Semiconductor's complete high-voltage diode portfolio — including the ubiquitous 2CL multiplier stacks, BY high-voltage rectifiers, DD fast recovery diodes, and HV ultra-high-voltage series.
| Diotec Series | Type | Voltage | Current | HVD Replacement | Key Upgrade |
| 2CL71 / 2CL73 / 2CL75 / 2CL77 | Voltage Multiplier Stack | 10kV – 35kV | 10mA – 100mA | HVD-Multiplier Stack | ✅ Higher PD immunity |
|---|---|---|---|---|---|
| BY Series (BY299/BY399 etc.) | HV Rectifier | 1kV – 8kV | 0.5A – 3A | HVD-BY Equivalent | ✅ Faster trr |
| DD Series (DDxxN) | Fast Recovery | 2kV – 6kV | 0.2A – 1A | HVD-Fast Recovery | ✅ 30% lower Qrr |
| HV Series (HV08-HV24) | Ultra-HV Rectifier | 8kV – 24kV | 50mA – 200mA | HVD-UltraHV | ✅ Extended to 50kV+ |
Diotec's 2CL series is the industry-standard building block for Cockcroft-Walton voltage multiplier cascades used in:
* Medical X-ray and CT imaging high-voltage generators
* NDT (Non-Destructive Testing) X-ray inspection equipment
* Electrostatic precipitator power supplies
* Scientific instrumentation (mass spectrometers, electron microscopes)
HVD-Multiplier Stack advantages over 2CL:
* Partial Discharge Inception Voltage (PDIV): HVD achieves >80% of rated voltage before PD onset vs Diotec's typical 60-70%
* Thermal Stability: Junction temperature coefficient reduced by 25%, enabling higher ambient operation without derating
* Surge Withstand: 2x higher IFSM (Forward Surge Non-Repetitive Maximum) rating
* Long-Term Reliability: MTBF projection >500,000 hours under nominal conditions (vs Diotec's ~300,000 hours)
Contact: Sales Department
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Email: sales@hv-caps.com
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