Nanocrystalline Cores for Amplifiers

Nanocrystalline Cores for Amplifiers and Switched Mode Power Supplies

Adapter - Power Supply

Precision control for switched-mode power supplies and high-end voltage regulation

TI-Electronic’s nanocrystalline Mag-Amp cores are specially designed for magnetic amplifiers in SMPS systems, enabling precise voltage regulation and high-efficiency performance. These cores undergo longitudinal magnetic field heat treatment for optimal switching behavior and stability under load.

Compact and robust, they support tight tolerance regulation, making them ideal for desktop, server, and advanced industrial power supplies.

✨ Key Features

  • High saturation flux density (1.25 T): Supports compact design with reduced coil turns

  • High rectangle ratio (Br/Bm ≥ 94%): Ensures minimal dead-angle voltage in high-current switching

  • Low coercivity (Hc ≤ 36 A/m): Fast reset current, improving dynamic response and efficiency

  • High Curie temperature: Stable operation in thermally demanding environments

  • Optimized for secondary-side regulation in modern SMPS architectures

🌋 Typical Applications

  • Switched-mode power supplies (SMPS)

  • Voltage regulation in desktop and server PSUs

  • Magnetic amplifier circuits for controlled output regulation

  • High-performance, high-efficiency power conversion systems

🔧 Technical Overview

  • Heat-treated nanocrystalline ribbon core

  • Saturation flux (Bs): 1.25 Tesla

  • Coercivity: ≤ 36 A/m (typ.) @ 100kHz, 80A/m

  • High rectangle ratio for accurate switching and reduced ripple

  • Available in compact formats optimized for PCB integration

Optional: Co-based amorphous versions available for ultra-low coercivity and enhanced magnetic precision, ideal for high-end or mission-critical power supplies.

Nanocrystalline Cores for Magnetic Amplifiers (Mag-Amp) - Product Range Specification Table

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Part Nr.

Core dimension (mm)

Finished dimension (mm)

Eff.
cross
area
(cm2)

Mean
path
length
(cm)

Saturation
Flux
(μWb)

od

id

h

OD

ID

H

Ae

Lm

2Φm

TIE-CORE-MAG-AMP-100705Z

10

7

4.5

12

5

6.8

0.053

2.67

12.4

TIE-CORE-MAG-AMP-120803Z

12

8.4

3.2

14.7

5.9

5.4

0.045

3.20

10.6

TIE-CORE-MAG-AMP-120804Z

11.8

8.7

4.2

13.9

6.8

6.0

0.051

3.22

11.9

TIE-CORE-MAG-AMP-120805Z

12

8

4.5

14.7

6.2

6.8

0.070

3.14

16.5

TIE-CORE-MAG-AMP-151005Z

15

10

4.5

17

8

7.1

0.088

3.93

20.6

TIE-CORE-MAG-AMP-191505Z

19

15

5

21

13

6.6

0.078

5.34

18.3

🚚 Customization & Delivery

TI-Electronic offers:

  • ISO 9001:2015 certified manufacturing

  • Fast shipping from EU warehouse

  • Custom geometries available on request

  • Technical support for optimized mag-amp design

📧 Reach out to our engineers for selection help, datasheets, or custom requests.