400KV High Voltage Pulse Generator Module is an epoxy-potted step-up pulse ignition transformer module that converts a low 3V to 6V DC battery input into a high-voltage pulsed arc output up to 400kV. Built around a high-frequency resonant oscillator and a multi-stage Cockcroft-Walton voltage multiplier encapsulated inside a moisture-resistant cylindrical resin housing, it produces a high-temperature purple electric arc across a 10mm to 20mm discharge gap for electronic igniters, physics demonstrations, and pulsed electrostatic generators.
Key Features:
- High-Voltage Step-Up Output: Boosts a single 3.7V lithium cell or 3V–6V DC source into high-voltage pulse arcs reaching up to 400kV peak open-circuit potential.
- 10mm–20mm Arc Discharge Distance: Generates a continuous rapid sequence of high-temperature plasma arcs capable of igniting paper, alcohol burners, or combustible gases immediately.
- Vacuum Epoxy Potting: Internal high-voltage secondary windings and multiplier diodes are vacuum-encapsulated in insulating epoxy resin to prevent internal corona breakdown.
- Simple Two-Wire DC Input: Color-coded red (+) and green/black (-) low-voltage power leads allow instant hookup to a single 18650 cell through a momentary push-button switch.
- Compact Cylindrical Housing: D-shaped cylindrical body fits easily inside handheld igniter tubes, science demonstration rigs, and pest control enclosures.
Technical Specifications:
- Model Type: 400kV Cylindrical Step-Up Pulse Generator
- Input Voltage Range: 3.0V to 6.0V DC (3.7V 18650 Li-Ion recommended)
- Input Operating Current: 2A to 4A (during pulse discharge)
- Output Voltage: ~200kV to 400kV DC Pulse (Open-Circuit Peak)
- Optimal Arc Gap Distance: 10mm to 20mm (Do not exceed 20mm or fire open-circuit)
- Continuous Duty Cycle: Maximum 10 seconds per activation (Allow cooling between bursts)
- Encapsulation Material: High-Dielectric Black Epoxy Resin
Mechanical Specifications:
- Enclosure Profile: Cylindrical D-Shape Flat-Base Housing
- Input Lead Length: ~100 mm (Red Positive, Green/Black Negative)
- High-Voltage Output Lead Length: ~100 mm Thick Silicone-Insulated HV Wires
Dimensions:
- Length: 64 mm
- Diameter / Width: 24 mm × 22 mm
- Weight: ~45 g
Pinout and Wiring:
- Red Wire (IN+): Connect to 3.7V–6V DC positive supply via a high-current momentary push button switch.
- Green / Black Wire (IN-): Connect directly to battery negative (GND).
- Two Thick Output Wires (HV1 / HV2): High-voltage discharge electrodes; fix the stripped wire tips 10mm to 15mm apart before applying input power.
Datasheet Reference:
- Circuit Architecture: High-Frequency Blocking Oscillator + Multi-Stage Cockcroft-Walton HV Multiplier
- Safety Precaution: Never power the module with the HV output wires separated beyond 20mm or shorted together, as excess reflected energy will puncture the internal multiplier diodes.
Commonly Used in:
- Handheld Electronic Plasma Arc Igniters and Gas Stove Igniters
- High-School and University Electrostatic & Plasma Physics Demonstrations
- Agricultural Electric Fence & Pest Repellent Pulse Prototypes
- Jacob’s Ladder Arc Climbing Science Fair Exhibits
Applications:
- Provides a reliable, windproof high-temperature plasma spark for igniting gas burners, camp stoves, and laboratory Bunsen burners.
- Demonstrates dielectric breakdown of air, corona discharge, and capacitor pulse multiplication in classroom physics experiments.
- Serves as the high-voltage excitation source for compact ozone sterilization and negative ion generator prototypes.
Equivalent Models:
- DC 3V-400KV Boost Step-Up Power Module: Rectangular/cylindrical 400kV variant with identical electrical ratings.
- 15KV High-Frequency Arc Ignition Kit: Continuous high-frequency AC arc inverter kit for continuous plasma ignition.
Package Includes:
- 1 × 400KV High Voltage Pulse Generator Module

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