Today's amplifiers are tiny, efficient and everywhere — in soundbars, car audio, powered speakers and professional rigs. Behind that efficiency sits an unglamorous hero: the Class D output-filter inductor. Shenzhen Zhixiangyuan Electronics Co., LTD (ZXY), a national high-tech enterprise with 26 years of magnetics engineering and 220 million components shipped annually to partners in 79+ countries, designs and manufactures the inductors that make modern amplification clean, cool and dependable.
Why the Inductor Decides How an Amplifier Sounds
A Class D amplifier switches at high frequency and relies on a low-pass output filter — a precision inductor and capacitor — to reconstruct the audio signal. If that inductor saturates or runs hot, distortion climbs and switching noise leaks through. ZXY Class D amplifier inductors use low-loss magnetic cores and high-temperature oxygen-free copper wire to deliver high linearity, low DC resistance (DCR) and strong EMI suppression — the difference between an amplifier that sounds flat and one that sounds effortless
| Fig. 1 — Class D amplifier inductor 3R3: flat-wire, shielded, SMD. |
Fig. 2 — 1R5 flat-copper shielded inductor for digital amplifiers. |
|
Series (official) |
Key parameters (official) |
Application |
|
Class D 3R3 |
3.3 µH, flat-wire, shielded SMD |
Home theater, car audio, pro amps, active speakers |
|
Class D 1R5 |
1.5 µH, flat-copper, magnetic shielding |
Compact digital amplifiers |
|
Drum core choke 122 |
1200 µH, DCR 3.5 Ω, Isat 0.32 A, SRF 1.6 MHz, −40…+125 °C |
DC-DC converters, SMPS |
|
DR10*16 |
10% tolerance, −20…+140 °C |
Chargers, switching power supplies |
|
T25 ring |
5.6 mH ring choke |
High-frequency SMPS filtering |
Beyond Class D, ZXY's power inductor line covers molded SMD chips, flat-wire types, ferrite rods, ring cores, I-shaped and drum structures — engineered for low core loss, high saturation current and excellent thermal stability in DC-DC converters, automotive electronics, industrial control, LED drivers and renewable energy equipment.
| Fig. 3 — 22 µH shielded molded SMD power inductor. | Fig. 4 — 2R2 flat-wire iron-core inductor for DC power. |
| Fig. 5 — SMRH ready-stock SMD series (6.8–680 µH). | Fig.6 — 6R8 SMD molded inductor, 6.5 A. |
| Fig. 7 — 100 µH anti-EMI shielded SMD inductor. | Fig. 8 — DR10*16 vertical plug-in inductor for chargers. |
| Fig. 9 — 470 µH I-shaped vertical inductor for compact PCB. | Fig. 10 — Drum choke plug-in inductor family. |
| Fig. 11 — High-current ferrite rod through-hole choke. | Fig. 12 — T25 ring ferrite choke, 5.6 mH. |
|
Fig. 13 — T31 white-shell filter ring inductor. |
Fig. 14 — 1 mH / 60 A large toroidal power inductor. |
From 60 A toroidal power inductors to iron-silicon flat-wire chokes for photovoltaic inverters, ZXY builds high-current magnetics for the energy and industrial markets — with custom inductance, current ratings and package configurations to match any bill of materials.
| Fig. 15 — Iron-silicon flat-wire inductor for photovoltaic inverters. |
Fig. 16 — T1515-30MH flat-wire common-mode inductor. |
|
Application |
ZXY inductor solution |
Key benefit |
|
Class D audio amplifiers |
3R3 / 1R5 flat-wire shielded |
Low distortion, clean switching noise |
|
DC-DC converters |
Drum core, molded SMD |
High saturation, stable inductance |
|
SMPS / chargers |
DR10*16, T25 ring |
Wide temperature, high reliability |
|
LED drivers |
EE8.3 common mode |
EMI suppression |
|
Renewable energy |
500G iron-silicon, 1mH/60A |
High current, low loss |
Every ZXY inductor is 100% tested before shipment — electrical parameters, insulation reliability and safety screening — with a 90–180 day quality warranty. Samples ship in 5–10 working days, bulk orders in 15–30 days, and low MOQs support early-stage prototypes. Key materials comply with RoHS and REACH, 2D/3D drawings are provided before production, and FOB, EXW and CIF terms are all supported.
Contact: Shenzhen Zhixiangyuan Electronics Co., LTD — www.zxyaudio.com | www.inductor-transformers.com | Alibaba: zhixiangyuan.en.alibaba.com | rhea@zxycoil.com | +86 135-5472-3725 (Tel/WhatsApp).
Today's amplifiers are tiny, efficient and everywhere — in soundbars, car audio, powered speakers and professional rigs. Behind that efficiency sits an unglamorous hero: the Class D output-filter inductor. Shenzhen Zhixiangyuan Electronics Co., LTD (ZXY), a national high-tech enterprise with 26 years of magnetics engineering and 220 million components shipped annually to partners in 79+ countries, designs and manufactures the inductors that make modern amplification clean, cool and dependable.
Why the Inductor Decides How an Amplifier Sounds
A Class D amplifier switches at high frequency and relies on a low-pass output filter — a precision inductor and capacitor — to reconstruct the audio signal. If that inductor saturates or runs hot, distortion climbs and switching noise leaks through. ZXY Class D amplifier inductors use low-loss magnetic cores and high-temperature oxygen-free copper wire to deliver high linearity, low DC resistance (DCR) and strong EMI suppression — the difference between an amplifier that sounds flat and one that sounds effortless
| Fig. 1 — Class D amplifier inductor 3R3: flat-wire, shielded, SMD. |
Fig. 2 — 1R5 flat-copper shielded inductor for digital amplifiers. |
|
Series (official) |
Key parameters (official) |
Application |
|
Class D 3R3 |
3.3 µH, flat-wire, shielded SMD |
Home theater, car audio, pro amps, active speakers |
|
Class D 1R5 |
1.5 µH, flat-copper, magnetic shielding |
Compact digital amplifiers |
|
Drum core choke 122 |
1200 µH, DCR 3.5 Ω, Isat 0.32 A, SRF 1.6 MHz, −40…+125 °C |
DC-DC converters, SMPS |
|
DR10*16 |
10% tolerance, −20…+140 °C |
Chargers, switching power supplies |
|
T25 ring |
5.6 mH ring choke |
High-frequency SMPS filtering |
Beyond Class D, ZXY's power inductor line covers molded SMD chips, flat-wire types, ferrite rods, ring cores, I-shaped and drum structures — engineered for low core loss, high saturation current and excellent thermal stability in DC-DC converters, automotive electronics, industrial control, LED drivers and renewable energy equipment.
| Fig. 3 — 22 µH shielded molded SMD power inductor. | Fig. 4 — 2R2 flat-wire iron-core inductor for DC power. |
| Fig. 5 — SMRH ready-stock SMD series (6.8–680 µH). | Fig.6 — 6R8 SMD molded inductor, 6.5 A. |
| Fig. 7 — 100 µH anti-EMI shielded SMD inductor. | Fig. 8 — DR10*16 vertical plug-in inductor for chargers. |
| Fig. 9 — 470 µH I-shaped vertical inductor for compact PCB. | Fig. 10 — Drum choke plug-in inductor family. |
| Fig. 11 — High-current ferrite rod through-hole choke. | Fig. 12 — T25 ring ferrite choke, 5.6 mH. |
|
Fig. 13 — T31 white-shell filter ring inductor. |
Fig. 14 — 1 mH / 60 A large toroidal power inductor. |
From 60 A toroidal power inductors to iron-silicon flat-wire chokes for photovoltaic inverters, ZXY builds high-current magnetics for the energy and industrial markets — with custom inductance, current ratings and package configurations to match any bill of materials.
| Fig. 15 — Iron-silicon flat-wire inductor for photovoltaic inverters. |
Fig. 16 — T1515-30MH flat-wire common-mode inductor. |
|
Application |
ZXY inductor solution |
Key benefit |
|
Class D audio amplifiers |
3R3 / 1R5 flat-wire shielded |
Low distortion, clean switching noise |
|
DC-DC converters |
Drum core, molded SMD |
High saturation, stable inductance |
|
SMPS / chargers |
DR10*16, T25 ring |
Wide temperature, high reliability |
|
LED drivers |
EE8.3 common mode |
EMI suppression |
|
Renewable energy |
500G iron-silicon, 1mH/60A |
High current, low loss |
Every ZXY inductor is 100% tested before shipment — electrical parameters, insulation reliability and safety screening — with a 90–180 day quality warranty. Samples ship in 5–10 working days, bulk orders in 15–30 days, and low MOQs support early-stage prototypes. Key materials comply with RoHS and REACH, 2D/3D drawings are provided before production, and FOB, EXW and CIF terms are all supported.
Contact: Shenzhen Zhixiangyuan Electronics Co., LTD — www.zxyaudio.com | www.inductor-transformers.com | Alibaba: zhixiangyuan.en.alibaba.com | rhea@zxycoil.com | +86 135-5472-3725 (Tel/WhatsApp).