---
product_id: 112004322
title: "Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot"
brand: "hondark"
price: "198 zł"
currency: PLN
in_stock: true
reviews_count: 2
category: "Hondark"
url: https://www.desertcart.pl/products/112004322-electronics-transformer-core-uf86a-inductor-ferrite-core-ferrite-bead-mnzn
store_origin: PL
region: Poland
---

# High inductance ~3900 nH * turn² Massive magnetic cross-section 344mm² Durable MnZn PC40 ferrite material Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot

**Brand:** hondark
**Price:** 198 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash Transformer Power with the UF86A Core – Build the Future of Electronics!

## Quick Answers

- **What is this?** Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot by hondark
- **How much does it cost?** 198 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/112004322-electronics-transformer-core-uf86a-inductor-ferrite-core-ferrite-bead-mnzn)

## Best For

- hondark enthusiasts

## Why This Product

- Trusted hondark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Pair Set:** Comes as a 2-piece pair, perfect for custom transformer or isolator builds
- • **Precision Inductance:** Approximately 3900 nH * turn², ideal for medium-frequency transformer applications
- • **Robust Material Build:** Crafted from premium MnZn PC40 ferrite ensuring durability and stable performance
- • **Powerhouse Magnetic Core:** Massive UU shape with 344mm² cross-sectional area for superior magnetic flux handling
- • **Frequency Range Optimized:** Designed for frequencies starting at 50 Hz, perfect for industrial and scientific use

## Overview

The UF86A Electronics Transformer Core is a large UU-shaped ferrite core made from high-quality MnZn PC40 material, featuring a substantial 344mm² cross-sectional area and an inductance of approximately 3900 nH * turn². Sold as a pair, it is optimized for medium-frequency applications starting at 50 Hz, making it ideal for custom transformers, isolators, and industrial electronic equipment.

## Description

Large UU shape transformer ferrite core /isolator ferrite / ferrite bead for machine or equipments

Review: Massive. Matches the datasheet in the image. - This thing is bigger than I imagined, which is totally fine by me. Al seems to be very close to images ~3900 nH * turn^2. Definitely designed for the not super high frequency range, which is fine, but be awear that over ~100 kHz you may run into issues, as the number of turns you'll need to avoid saturation will also give you a pretty high inductance/impedance. The cross sectional area of the core is massive, so as long as you're not switching more than a couple hundred volts, it should still be possible to work as needed. Could also just tape over the spot where the two core pieces touch to give yourself a little air gap as well. Tons of options with a beast like this.
Review: This thing is the largest core I've ever seen! - I'm planning on building my own flyback transformer with this beast and I'm very excited to try it out!

## Features

- 1.Model:Transformer ferrite core
- 2.Part number : UF86A
- 3.Size: round size 86X4=344mm,refer to the drawing for details
- 4.Material: MnZn PC40
- 5.Pair : 2pieces

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PCK95DH |
| Best Sellers Rank | #294,462 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #121 in Electronic Ferrites |
| Brand Name | Hondark |
| Customer Reviews | 4.8 4.8 out of 5 stars (5) |
| Manufacturer | Hondark HK Limited |
| Minimum Frequency | 50 Hz |
| Model | UF86A |
| Mounting Type | Chassis Mount |
| UPC | 303621183702 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Hondark
- **Manufacturer:** Hondark HK Limited
- **Mounting Type:** Chassis Mount
- **UPC:** 303621183702

## Images

![Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot - Image 1](https://m.media-amazon.com/images/I/51Aob2MxGOL.jpg)
![Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot - Image 2](https://m.media-amazon.com/images/I/517bZ6lvlQL.jpg)
![Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot - Image 3](https://m.media-amazon.com/images/I/51khXcf0U+L.jpg)
![Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot - Image 4](https://m.media-amazon.com/images/I/41XPsnZlpYL.jpg)
![Electronics Transformer Core UF86A Inductor Ferrite Core Ferrite Bead MnZn PC40 1pair per lot - Image 5](https://m.media-amazon.com/images/I/41vaT1S6RlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Massive. Matches the datasheet in the image.
*by N***O on December 15, 2024*

This thing is bigger than I imagined, which is totally fine by me. Al seems to be very close to images ~3900 nH * turn^2. Definitely designed for the not super high frequency range, which is fine, but be awear that over ~100 kHz you may run into issues, as the number of turns you'll need to avoid saturation will also give you a pretty high inductance/impedance. The cross sectional area of the core is massive, so as long as you're not switching more than a couple hundred volts, it should still be possible to work as needed. Could also just tape over the spot where the two core pieces touch to give yourself a little air gap as well. Tons of options with a beast like this.

### ⭐⭐⭐⭐⭐ This thing is the largest core I've ever seen!
*by A***R on July 1, 2021*

I'm planning on building my own flyback transformer with this beast and I'm very excited to try it out!

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-25*