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Transformers - HV Flybacks, HF, Parts, etc.


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This page shows our high-frequency ferrite Transformers.

Unlike the conventional iron core, these deliver many times the power in a smaller lighter package. They require a high frequency circuit to operate and cannot be directly powered by direct 115 vac. (For 60Hz iron core transformers powered by 115VAC, see our page here.)

We supply ice cube sized units to the much larger flyback types. They have proven their reliability as many are still in service for over 20 years! These efficient units were designed in our USA laboratories and manufactured in our HK facility. They are used for general high voltage circuits, weapons, health, neon signs and many other high voltage applications. Purchase of three or more units will include a working circuit diagram with all instructions. Volume discounts are readily available.


Transformers - HV Flyback, HF, Parts, etc. by subcategory:
HF Mini Ferrite
Pulse/Trigger Transformers
HV Switching Transformers
Ferrite "U" Cores
Ferrite "E" Cores
High Power Pulse Transformers
ZEONICS Triger Transfomers

Miniature Ferrite High Frequency Transformers
Intended for small power supplies operating in the 9 to 14 volt range. There are tens of thousands of power supplies in the field using these transformers. We can supply these units with customized windings.

Volume discounts are readily available.

yd310h Transformer All New 25kv pk High voltage 70 watt output, 20 kHz-100 kHz operating frequency, in 1.5 x 1.2 x 1.3" potted enclosure with PC board pins. This transformer may be used in self oscillating circuitry where the feed- back winding is utilized or, in a conventional timer controlled inverter circuit. Operates with 9-14VDC input. We will have several circuits for this part that will be downloadable and are included with the purchase.
- 25kv 10ma 20-100kHz Transformer ... $29.95     Wiring & schematics
   10-24@ $24.95ea.  25-49@ $21.95ea.  50-99@ $18.95ea.  Contact us for larger volume purchase discounts.

28K089 Transformer

7000 volt pk model at 10ma, 20kHz-100kHz operating frequency, in 1 x 1 x 1" potted enclosure with PC board pins. This transformer may be used in self oscillating circuitry where the feed back winding is utilized or, in a conventional timer controlled inverter circuit. Operates with 9-14VDC input.

This transformer was designed in our laboratories 30 years ago -- it has proven to be very popular, with over 500,000 in service in various projects implemented for the trade, and they are still selling like hotcakes. We try to keep at least 5,000 in stock at all times for those who need to order in quantity, but please contact us if you need a larger volume and to see how we can can manufacture these within your schedule. This transformer can also be customized to your design requirements.

- 7kv 10ma 20-100kHz Transformer ... $19.95       Wiring & schematics
   10-24@ $16.95ea.  25-49@ $14.95ea.  50-99@ $12.95ea.   Contact us for larger volume purchase discounts.
28K089 Pin Layout
Pin Layout

28K074 Transformer 4000 volt pk model at 15ma, 20kHz-100kHz operating frequency, in 1 x 1 x 1" potted enclosure with PC board pins.
- 4kv 15ma 20-100kHz Transformer ... $17.95       Wiring & schematics
   10-24@ $14.95ea.  25-49@ $12.95ea.  50-99@ $10.95ea.   Contact us for larger volume purchase discounts.
28K089 Pin Layout
Pin Layout

28K077 Transformer 2000 volt pk model at 10ma, 20kHz-100kHz operating frequency, intended for light sabers, shockers etc. Small size of .7" diameter x 11/4"length fits into a 7/8" ID tube. Uses solderable pins for terminations and high voltage lead for output.
- 2kv 10ma 20-100kHz Transformer ... $9.95         Wiring & schematics
   10-24@ $7.95ea.  25-49@ $6.95ea.  50-99@ $5.95ea.   Contact us for larger volume purchase discounts.
28K089 Pin Layout
Pin Layout

Pulse, Ignitor and Trigger High Voltage Transformers
These high voltage pulse transformers supply the voltage pulses used for igniters, shockers, stun guns, triggers for laser flash tubes, high power spark switches etc. They are used with capacitor discharge circuitry where a capacitor is charged and then allowed to discharge into the primary where a high voltage and high peak current pulse is generated in the secondary output winding. The high voltage output pin is isolated on the top with all other leads on the bottom
CD25B Transformer 25KV output at .18 JOULES, 50-10ms exponential ring time. Use a 300 volt 4 ufd capacitor with sidac trigger for self break-down or use with SCR for controlled trigger rate. 1" round by 1.25" long in fully potted. enclosure. Use for ignitors, triggers, simulated lightning, mini Tesla coils and low level shock devices. CD25B Specifications
- 25kv Pulse Transformer ... $16.95 plus You may request download of our TLITE1 Tesla coil plans at NC
   10-24@ $13.95ea.  25-49@ $11.95ea.  50-99@ $10.95ea.   Contact us for larger volume purchase discounts.

CD45 Transformer 45KV output at .32 JOULES, 50-10ms exponential ring down time. Use a 400 volt 4 ufd capacitor with sidac trigger for self break-down or use with SCR for controlled trigger rate. 1.25" round by 1.25" long in fully potted enclosure. CD45 Specifications
- 45kv Pulse/trigger Transformer ... $29.95 
   10-24@ $24.95ea.  25-49@ $21.95ea.  50-99@ $18.95ea.   Contact us for quantity discounts, plus you may request download of our BTC1 mini Tesla coil plans shocker plans at no charge.

High Voltage Switching Transformers
These high frequency, high voltage transformers are designed for many specialized applications such as powering very large neon displays, solid state Tesla coils, plasma displays, ozone generators, Jacob's Ladders, drivers for DC multipliers or many general purpose high voltage applications both AC and DC. Existing primary winding is wound for line drive ½ bridge circuit and includes a 12 volt winding for other circuit functions. The primary winding is easily removed providing the user the option of different input voltages and driver circuits. 
flyback 12,000 Volts pk at 35 ma, 20 kHz-30 kHz operating frequency. Balanced output is center point grounded. These can be used for large Jacob’s ladders, neon tube power supplies, plasma arc sources, full wave drivers for voltage multipliers etc. Easily driven with our half bridge 115 vac power supply with the included schematic. Transformer has auxiliary 12 volt output winding, over volt sense coil and split secondary for fault current shutdown safety circuitry. This transformer was designed in our labs for high powered neon displays and is built to the latest UL 2161 specifications. Short circuit current limited by leakage inductance. This transformer is used in our neon power supply used in over 60 thousand neon commercial signs for the trade.
- 12kV 35mA Transformer ... $59.95
flyback

Smaller version of a series of endpoint high-voltage transformers. Secondary is wound with 1000 turns of number 34 wire good for over 50mA. Output voltage can be up to 20kV pk (40kV peak-to-peak) and is completely potted with a hard epoxy shell. The core is a beefy 58 x 29 x 15 mm. Magnetics ferrite type P. A primary winding of Litz wire for a push-pull 12V input is also on the transformer and can be easily removed or changed for your particular application. This transformer is used in our PVM12 and TCL50 high-voltage high-frequency products, as well as our PTG plasma generator.

- with 1000 turn coil #34 wire 50ma Single ended high volt with schematic of drive circuit ... $49.95


Our FLYPVM-series transformers used in conventional high-voltage high-frequency power supplies will power such devices as our JACK30 jacob ladder, AUDIOARC speaker, PVM400 plasma display power supply, HVPSD400KV DC HV, and more. They can be used in a resonant mode for tuning out the capacitance in plasma cells and containers as used in our PVM500, and higher power PVM2000 resonant mode drivers.

  • Secondary coils are rated at 40,000 V peak to peak and are end point grounded. Coils are potted in a hard epoxy molded shell.

  • They are easily disassembled for changing air gaps and winding different primaries. Most applications will require a primary of 30 to 60 turns depending on the drive circuits and frequencies you intend to use.

  • When purchased they are ready to use with 2 mil air gaps and come taped together, only requiring the primary winding.

  • The standard transformer comes with core size of 2.7 x 3 x 0.625". An optional larger core size is available of 3.25 x 3.25 x .0625" allowing the builder to obtain more power from his circuit.

Products using or useable with these transformers: PVM400, PVM500, PVM2000, JACK30, AUDIOARC30, and HVPSD400KV

Datasheets & schematics with these transformers: PVM500 schematic, PVM500NEW915, PVM2000-instructions, PVM400COMPLETE1110

flyback
FLYPVM400
- with 4000 turn coil #37 wire 30ma, 2.7 x 3 x ⅝" core ... $69.95
- same transformer but with larger 3-¼ x 3-¼ x ⅝" ferrite core for higher power ... $89.95
   Allows more clearance and core volume for higher operating voltage and power.
flyback
FLYPVM250
- with 2500 turn coil #32 wire 90ma, will match up to 50pfd loads, 2.7 x 3 x ⅝" core ... $69.95
- same transformer but with larger 3-¼ x 3-¼ x ⅝" ferrite core for higher power ... $89.95
   Allows more clearance and core volume for higher operating voltage and power.
flyback
FLYPVM100
with 1000 turn coil #28 wire 230ma, will match up to 150pfd loads, 2.7 x 3 x ⅝" core ... $69.95
- same transformer but with larger 3-¼ x 3-¼ x ⅝" ferrite core for higher power ... $89.95
   Allows more clearance and core volume for higher operating voltage and power.


flyback

UNIVERSAL HIGH VOLTAGE TRANSFORMER MAY BE USED IN SEVERAL CIRCUIT CONFIGURATIONS Capable of providing 30kV pk to pk, 15kHz-70kHz operating frequency.

High output intended for CO2 lasers or as a driver for Cockroft Walton voltage multipliers up to 300KV at 2ma. Circuitry may use pre-wound primary of 40 turns and secondary that are on same leg for low leakage application. These leads can be insulated to preserve for different circuit.  You may hand wind primary on opposite leg for high leakage reactance for negative resistance loads. Core is a “beefy” 2.7 x 3 x 0.675" U core set. Secondary is wound with 1000 turns of #34 wire. For endpoint grounded circuits. (We can manufacture these, and variations, in large volume for the trade; contact us by email.) An example of a working FLYLABURN circuit schematic is available by purchasing our LABURN20 plans by download.

- with 1000 turn coil #34 wire for 60ma Transformer  ... $69.95

Ferrite "U" Cores & Rods for Flyback and High Voltage Transformers
All cores are standard ferrite, for high voltage designs. Each U-core purchase comes as a set of two (2) pieces. Each rod comes as a set of a single (1) piece.

You may check MAGNETICS "P", FERROXCUBE 3C8, FAIRITE 77, STACKPOLE 24B TYPE 77 BY FAIRRITE. While not exact for all, it is typical of these cores. The following data can be used in designing fly backs, HV and power transformers.

  • Initial perm: 2000
  • Max perm: 6000
  • Max flux @10 oersteads: 4600
  • Residual flux: 1100
  • Resonant freq: 1khz-2Mhz
  • Wide band freq for low power: 1 to 30Mhz

 

      HV Transformer U Cores
- (0.610 x 0.44 x 0.260") ... $5.00
- (0.875 x 0.60 x 0.225") ... $5.00
- (0.810 x 0.71 x 0.240") ... $5.00
- (1.000 x 0.75 x 0.250") ... $5.00

HV Ferrite Transformer Design and Driver Circuit

All Ferrite Core dimensions listed as (Height x Width x Thickness):

Ferrite Rod
- Ferrite Rod, single (1) piece, 3.20" length x 0.5" diameter ... $5.00

Ferrite "E" Cores and Bobbin Transformer Kits

Easy to wind bobbin for many electronic projects. Easy to use providing a wide range of voltages and currents. An example circuit schematic is included.

2 x 2-1/4" x 1/2", 3C80 material good for up to 1 MHz, u=2000, 300 watts
- Bobbin and Core ... $24.95
3 x 2-1/4" x 5/8", 3C80 material good for up to 1 MHz, u=2000, 500 watts
- Bobbin and Core ... $34.95

High-Powered Impulse and Trigger Transformers

These specialized units are intended for the research trade experimenting in high-energy sophisticated type projects. These parts are extremely well-built, durable and live up to all their specifications 100% plus. We have used and designed several models for contracts under very stringent conditions. These quality parts are manufactured in Bangalore by a leading company well sanctioned by the Indian and U.S. government. These items are intended to be used by qualified researchers in the field of high voltage development for both government and private use.

Pulse Transformers
For high enegry events

Air Core Pulse Transformer    

Basic Specifications:

  • Air core, oil filled vacuum molded epoxy casted
  • Input pulse   200-800 volts
  • Output pulse: 60,000 Volts
  • Isolation: 90,000Volts DC
  • Energy: 50 Joules
  • Temp: -20 to 85 C
- Order# ZETRAIR60KV ... $958.00   Please allow 4-8 weeks for delivery

Ferrite Core Pulse Transformer    

Basic Specifications:

  • Air core, oil-filled, vacuum molded epoxy casted
  • Input pulse: 800 volts
  • Output pulse: 80,000 Volts
  • Isolation: 110,000Volts DC
  • Energy: 50 Joules
  • Pulse rep rate: 1PPS
  • Dimensions: 250mm diameter x 275mm with output terminals

- Order# Z/25/54/686 ... $1415.60    Please allow 4-8 weeks for delivery

High Voltage Pulse Transformer    

Basic Specifications:

  • Input pulse: 400-1000 volts
  • Output pulse: 100,000 Volts
  • Isolation: 120,000Volts DC
  • Energy: 200 Joules
  • Temp: -20 to 60 C
  • Dimensions: 450mm x 150MM x 300M with output terminals

- Order# ZETR100KV ... $2142.40    Please allow 4-8 weeks for delivery

High Voltage Pulse Transformer    

Basic Specifications:

  • Input pulse: 200-800 volts
  • Output pulse: 100,000 Volts
  • Isolation: 120,000Volts DC
  • Energy: 200 Joules
  • Temp: -20 to 90 C
  • Dimensions: 300mm x 160MM x 350M with output terminals

- Order# Z/30/112 ... $2197.60    Please allow 4-8 weeks for delivery

Ultra High Power Voltage Air Core Pulse Transformer    

Basic Specifications:

  • Energy is 5 Kilo Joules (a real treat to see the discharge in action!!)
  • Primary is a copper sheet 1.000mm thick
  • Input pulse: 10Kv to 18Kv max at 50 to 60KA
  • Output pulse: 500Kv at high peak current!!
  • Isolation: 650Kv pulse
  • Temp: -20 to 55 C
  • Dimensions:  Height is approx. 2000mm; Diameter is 750mm to 800mm

- Order# ZEZ/27/142 ... $8533.20    Please allow 4-8 weeks for delivery

Trigger Transformers
For gas discharges, triggering spark gap switches

High Voltage Trigger Transformer

Basic Specifications:

  • Input pulse max: 800 volts
  • Rise time approx. 900ns, pulse width 2-3us
  • Output pulse: 40,000 Volts
  • Isolation: 50,000Volts DC
  • Dimensions: 170 x 80x 60mm
  • Primary UHF connector, Secondary wire leads
- Order# Z/18/147/148 ... $614.80 Please allow 4-6 weeks for delivery

High Voltage Trigger Transformer

Basic Specifications:

  • Input pulse: 400 volts
  • Output pulse: 15,000 Volts
  • Isolation: 50,000Volts DC
  • Max pulse width: 2usec
  • Pulse rep rate: 5 per sec
  • Temp: -20 to 85 C
  • Dimensions: 84mm x 52mm x 35mm
- Order# ZPT-400 ... $243.00 Please allow 4-6 weeks for delivery