Where can I purchase a high frequency step-up transformer

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Discussion Overview

The discussion revolves around the search for a high-frequency step-up transformer capable of operating at 1MHz, with specific electrical characteristics. Participants explore potential sources for purchasing such a transformer and share insights related to the application in plasma generation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant specifies the desired transformer characteristics, including a step-up ratio of 1:80, primary inductance of 1.55uH, secondary inductance of 10.65mH, and mutual inductance of 62.5uH.
  • Another participant notes that achieving an 80:1 ratio at 1MHz may be challenging and inquires about the application and target winding-to-winding capacitance.
  • A participant mentions their intention to replicate a transformer described in a paper for plasma generation, detailing the specifications of the ferrite rod and winding requirements.
  • Suggestions for potential suppliers include links to products from Bytemark and Ferroxcube, with one participant expressing uncertainty about the suitability of a specific offering.
  • One participant shares their experience contacting a company for further information but has not yet received a response, indicating ongoing efforts to find the right transformer.
  • Another participant mentions Newark as a reliable source for Ferroxcube products, suggesting they are responsive to inquiries.

Areas of Agreement / Disagreement

Participants express a mix of uncertainty regarding the availability of suitable transformers and the challenges associated with the specified requirements. There is no consensus on a definitive solution or supplier.

Contextual Notes

Participants highlight limitations in finding ferrite rods of the required dimensions and the need for specific winding configurations, which may affect the search for an appropriate transformer.

Who May Find This Useful

This discussion may be of interest to individuals involved in high-frequency transformer design, plasma generation applications, or those seeking specific electrical components for experimental setups.

yesbeckng
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I need a transformer with the following characteristics that can operate at a frequency of 1MHz.

Step-up ratio= 1:80
Primary L=1.55uH
Secondary L=10.65mH
Mutual Inductance= 62.5uH

Any suggestions on what US companies might carry this kind of product?
 
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yesbeckng said:
I need a transformer with the following characteristics that can operate at a frequency of 1MHz.

Step-up ratio= 1:80
Primary L=1.55uH
Secondary L=10.65mH
Mutual Inductance= 62.5uH

Any suggestions on what US companies might carry this kind of product?

Welcome to the PF.

80:1 at 1MHz is potentially going to be difficult to achieve. Can you say something about the application? What is your target spec for Cww (winding-to-winding capacitance)?
 
berkeman said:
Welcome to the PF.

80:1 at 1MHz is potentially going to be difficult to achieve. Can you say something about the application? What is your target spec for Cww (winding-to-winding capacitance)?

Thank you berkeman,
I am trying to replicate a transformer in a paper for plasma generation. The paper describes the transformer as a 10mm diameter ferrite rod with 5(.3mm):400(.15mm) windings of copper wire.
Loss Resistance= 26 ohm
Self Capacitance=3.55pF

I've had no luck finding a ferrite rod with the right shape and size. Hardly any have been above 8mm in diameter, and none have been more than 25mm long, too short to fit the number of windings required. This is why I am trying to find an equivalent transformer.
 
Last edited:
Last edited by a moderator:
jim hardy said:
is this guy's offering the right flavor?

I contacted this company about a week ago but never received a response. I called again and sent another email just now. It seems to be what I need, but I won't know for sure until I can talk with their engineers. I will keep the thread updated, and in the mean time I will continue to search for alternatives.
 
Newark carries the Ferroxcube and they'll answer their phone.

old jim
 

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