Common Mode Choke
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)
TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)

TCB60405-252H | 40A 3-Phase Nanocrystalline Common Mode Choke (VAC T60405-S6123-X140 Replacement)

Need VAC T60405-S6123-X140? TCB60405-252H is the Pin-Compatible 40A 3-Phase Alternative
TCB60405-252H is a 40 A three-phase nanocrystalline common mode choke, engineered as a pin-to-pin drop-in replacement for the VAC T60405-S6123-X140. It is designed for EMC filtering in three-phase inverters, motor drives (VFDs), UPS systems and energy storage (PCS) applications.

Built on a high-permeability nanocrystalline core, TCB60405-252H delivers stable common mode attenuation from 10 kHz to over 100 MHz while keeping DCR low and temperature performance reliable (–40 °C to +125 °C). The component matches the footprint, pin configuration and impedance behavior of the original VAC part, allowing a direct swap with minimal redesign.

Key specifications
- Rated current: 40 A (three-phase)
- Common mode impedance: 175 Ω @ 10 kHz, 600 Ω @ 100 kHz
- Inductance: 2.50 mH @ 10 kHz, 0.60 mH @ 100 kHz
- High-permeability nanocrystalline core for wideband attenuation
- Flammability rated to UL94V-0
- Vertical round package, Ø52.0 mm max, 32.0 mm max height
- Pin-compatible with VAC T60405-S6123-X140

Typical applications
- Three-phase photovoltaic & energy storage inverters (PCS)
- Motor drives / VFDs and frequency converters
- Online UPS and industrial power supplies
- Grid-tied and energy storage EMC filtering

Why Yetcoil
With VAC common mode chokes facing long lead times across Europe and the US, TCB60405-252H offers a dependable alternative with a 4–6 week lead time, competitive pricing, and full datasheet & impedance curve support.

Request a datasheet or sample below.
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Custom Magnetics

YET focus in custom development and low volume methodology allow us to be one of the most flexible and agile manufacturers in the industry.


Our engineering staff has a vast wealth of professional knowledge.YET can deliver custom magnetics products on time to any country.


YET can design and build magnetics from customer design prints, re-engineer to enhance magnetics products to support customer needs, and reverse engineer magnetics products.

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