Audio Transformer
ZXY is a leading audio transformer manufacturer, delivering high-performance audio transformer solutions designed for high-quality audio signal transmission, impedance matching, electrical isolation, and noise reduction. Utilizing advanced magnetic core materials and precision winding processes, each audio transformer delivers excellent frequency response, low distortion, and superior signal integrity. Our products are widely used in microphones, amplifiers, mixers, recording equipment, broadcasting systems, and communication devices. They help improve sound clarity while minimizing electromagnetic interference, making them an ideal choice for demanding pro-audio applications. Customized impedance ratios and frequency specifications are also available to meet diverse customer requirements.
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1:1 audio isolation transformer, type ED8X10-2.0H, laminated E-I core, glue-dispensed bobbin, four gull-wing terminals. Outline 0.555 by 0.313 by 0.197 in, that is 14.1 by 7.95 by 5.0 mm. Turns ratio 1:1 within plus or minus 2 percent. DCR 105 ohm on 1-2 and 105 ohm on 3-4, both within plus or minus 15 percent at 25 degrees C. Inductance 2.0 H minimum in parallel at 250 Hz, 0.5 V. Impedance 600 ohm on 1-2 with 400 ohm on 3-4 at 1 kHz, 0 dBm. Frequency response plus or minus 0.12 dB from 300 Hz to 4 kHz; insertion loss 2.3 dB maximum; return loss 28 dB minimum at 300 Hz and 35 dB minimum at 1 kHz and 4 kHz. Hi-pot 1250 V AC, 1 mA, 2 s. RoHS compliant.
Permalloy audio isolation transformer in a sealed cylindrical metal case, 31.0 mm diameter by 22.0 mm, DIP through-hole on 3.8 mm pin pitch and 19.0 mm row spacing. Five turns ratios in one footprint: 1:1, 1.5:1, 3.5:1, 8:1 and 12:1, each within plus or minus 2 percent, with its own DC resistance on pins 1-4 and pins 5-8. Response 20 Hz to 20 kHz within plus or minus 0.03 dB at 12:1 and no worse than plus or minus 0.25 dB across the set. Maximum 20 Hz input at 1 percent distortion from +2 dBu at 1.5:1 to +21.5 dBu at 12:1. Hi-pot 1250 V, 1 mA, 60 s on every variant, all figures at 25 degrees C.
Shielded chassis-mount audio isolation transformer with a 75 ohm primary and a tapped secondary at 75, 300 and 600 ohm. Turns ratio 1:1, 1:2 and 1:3 within plus or minus 0.5 percent; impedance within plus or minus 10 percent into a 75 ohm load. Response 30 Hz to 20 kHz within plus or minus 0.4 dB at 2 Vrms. THD 0.07 percent at 1 kHz and +4 dB; maximum 30 Hz input 30 dBu at 1 percent THD. Hi-pot 1000 V AC, 50 Hz, 5 mA, 60 s between windings. Separate shield pin and metal case pin. Moulded case 63.3 by 48.5 by 56.5 mm, mounting ears at 59 mm centres with 3.8 mm holes, twelve pins on a 35.5 mm row pitch.
MYT-66-80W: 80 W audio power transformer with a 220 V 50 Hz primary on red leads and a centre tapped 12 V-0-12 V secondary rated 3.3 A on blue, black and blue leads. High permeability EI silicon steel core, full metal shielding case, galvanized chassis brackets with slotted holes, pre-wired colour coded leads with Faston crimp terminals on the primary. Model, input, output and rated power are printed on the case label. Regulation, efficiency, temperature rise, insulation class, dielectric test voltage, dimensions, weight and certificate numbers are not published and are left open.
600 ohm to 600 ohm SMD audio isolation transformer, 1:1, six gull-wing pins on a 10.5 mm by 4.7 mm body, plus an 8.5 mm callout beside the pin ends. Inductance 2.0 H or more at 250 Hz and 0.5 V, DC resistance 66 ohm and 81 ohm at plus or minus 15 percent, hi-pot 1250 V AC at 1 mA for 2 seconds, all at 25 degrees C. Laminated high permeability core, multi-layer enamelled copper wire, amber thermal wrap, tape and reel supply. No model number, pinout, land pattern or frequency response is published, and the four certification marks carry no certificate numbers.
PQ3220 high frequency transformer for SMPS work, 12-pin PCB through-hole mount on a low-loss ferrite core. Maximum outline 34.5 mm by 36.0 mm by 23.0 mm, pin length 3.5 mm, row distance 30.5 mm, pins numbered 1 to 12 in two rows of six. Operating frequency given as 100 kHz to 500 kHz, efficiency up to 95 percent. The supplier declares RoHS, a UL94V-0 bobbin and 100 percent high-pot testing at 3.75 kV AC. Windings are made to order, so no voltage, ratio, inductance or power rating is published and none is stated here.
EI48 potted transformer for through-hole mounting on a control board: 220 V AC primary, 12 V AC secondary, 10 VA. The winding is cast in black epoxy inside a blue flame-retardant case with a stepped lid, pinned out for soldering and held by four corner screw lugs on the same footprint. The outline is 50.7 mm by 38.3 mm by 43 mm with the pin rows 28.8 mm apart, and the series is quoted from 1 W to 12 W. Class B, 40 °C ambient. Weight, winding data and dielectric figures are not published, and the source carries three dimensional conflicts that are listed rather than smoothed over.
EI laminated power transformer for 110 V or 220 V AC mains, rated 10 W to 30 W and built to order with a 12 V, 24 V or 48 V AC secondary. EI lamination core, vacuum impregnated winding on a flame-retardant V-0 bobbin, Class B/F insulation system, sheet metal case for EMI shielding, two-flange bracket and a lead harness with a white multi-way plug. Declared efficiency 92 % or more at 45 °C or less temperature rise, dielectric strength 2.5 kV AC or more and insulation resistance 100 MΩ or more at 500 V DC. No model number, no dimensions and no weight are given in the material; those are set with the order.
Rectangular hollow air core induction coil, 86 x 30.5 mm outer with a 14 mm side height, wound from multi-strand round copper wire and finished with high temperature resistant tape rated by the supplier to 180 °C.
Supplied either with two male tab terminals on a white terminal block, each fitted with a yellow insulating sleeve, or with red and black insulated lead wires crimped to insulated female quick-disconnect receptacles. Wire gauge, lead length, terminal type and coil size can be customized.
Inductance, DC resistance and current rating are not published in the source material. They are quoted against the value and the operating frequency you specify.
Supplied either with two male tab terminals on a white terminal block, each fitted with a yellow insulating sleeve, or with red and black insulated lead wires crimped to insulated female quick-disconnect receptacles. Wire gauge, lead length, terminal type and coil size can be customized.
Inductance, DC resistance and current rating are not published in the source material. They are quoted against the value and the operating frequency you specify.
ZXY-EI25 Flying Lead Audio Isolation Transformer, 1:4 Turns Ratio, 50 Hz-20 kHz, EI25 Laminated Core
ZXY-EI25 is a flying-lead audio isolation transformer built on an EI25 laminated core. Its two windings are isolated and wound to a 1:4 turns ratio. At 1 kHz and 0.3 V the primary measures 56 mH min and the secondary 800 mH min, and DC resistance at 25 °C is 1.6 Ω on the primary and 17 Ω on the secondary, ±15 %. The part covers 50 Hz to 20 kHz and is designed for low distortion across that band. Because the windings are separated it breaks the ground path between equipment, which removes AC hum from system grounding, and it reduces external interference on balanced and unbalanced lines. Flying leads with tinned ends suit a wide range of wiring layouts; customized designs are available. Supplied by ZXY, Shenzhen Zhixiangyuan Electronics Co., Ltd.
ZXY-ED8 is a miniature shielded permalloy audio isolation transformer for low-power audio and communication circuits, rated 0.1 W to 5 W. A permalloy core gives low loss and efficiency of 92 % or higher; the metal shielding shell suppresses EMI/RFI and keeps dust and moisture out of the winding. Standard ratios of 600:600 and 10K:600 cover the usual matching jobs, and custom ratios are wound to order. The V-0 flame-retardant bobbin carries a 130 °C insulation rating, the part withstands 2.0 kV AC for one minute between windings, and insulation resistance is 100 MΩ or more at 500 VDC. SMD solder pads suit automatic SMT assembly. Supplied by ZXY, Shenzhen Zhixiangyuan Electronics Co., Ltd.
ZXY-DU18 is a wideband audio isolation transformer in a sealed permalloy alloy housing with DIP through-hole mounting. Two winding variants are available, 1+1:1+1 and 1+1:3.5+3.5. Frequency response is ±0.5 dB from 10 Hz to 100 kHz at 1 % THD against a −6 dB 1 kHz reference, the maximum 50 Hz input level is +13 dBu, and the hi-pot rating is 1,250 V tested at 1 mA for 60 s. The part couples voice and data signals while breaking the ground path between equipment. Outline 38.5 mm by 24.5 mm, 22.0 mm high, on 8 pins in two rows of four at 5.0 mm pitch.
Huizhou Company Address
Zhixiangyuan Technology Co., Ltd., 5th Floor, Building 4, Xinghe Industrial Park, Zhongkai High tech Zone, Huicheng District, Huizhou City, Guangdong Province
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Room 202, Yingfei Haocheng Science and Technology Park, Guansheng 5th Road, Luhu Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, China