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ET3542
INF
As a through-hole common-mode choke focusing on noise filtering, the ET3542 features high impedance in the target frequency band through precision sectional winding technology, which can effectively block EMI/RFI interference in power supply lines, avoid operational abnormalities of electronic equipment caused by interference, and ensure stable operation of equipment.
In terms of electrical performance, this series has a rated voltage of 250VAC, a dielectric withstanding voltage of 2000VAC, and a minimum insulation resistance of 100MΩ, providing excellent electrical isolation reliability. The operating temperature range is from -20℃ to 105℃, and the maximum temperature rise under normal working conditions is controlled within 45℃, enabling long-term continuous operation in complex industrial temperature and humidity environments. Each unit weighs approximately 2.60 oz, offering multiple specification options with inductance values ranging from 4.7mH to 22mH and current carrying capacity from 1.8A to 4.0A, with different models corresponding to differentiated DC resistance (DCR) to meet the filtering needs of various industrial and electronic equipment.
With complete compliance and stable performance, this series can be widely used as a general-purpose filtering component in various industrial equipment and electronic systems. Currently, it is conveniently available through well-known global distributors such as DigiKey and Mouser, meeting the needs of bulk and sample procurement.
Electrical Specifications (@20°C)
| Order Code | Max.DC(Ω) Resistance | Min. Inductance* (mH) | Maximum DC Current(A) | Inductance Difference (μH) Max | Amps RMS | Rated Current (VAC) |
| INF-ET3542-051 | 0.50 | 33.00 | 1.5 | 1000 | 1.50 | 1.50 |
| INF-ET3542-052 | 0.40 | 22.00 | 1.8 | 700 | 1.80 | 1.80 |
| INF-ET3542-053 | 0.30 | 18.00 | 2.0 | 500 | 2.00 | 2.00 |
| INF-ET3542-054 | 0.20 | 12.00 | 2.5 | 350 | 2.50 | 2.50 |
| INF-ET3542-055 | 0.15 | 10.00 | 2.7 | 300 | 2.70 | 2.70 |
| INF-ET3542-056 | 0.12 | 8.10 | 3 | 250 | 3.00 | 3.00 |
| INF-ET3542-057 | 0.10 | 6.00 | 3.5 | 200 | 3.50 | 3.50 |
| INF-ET3542-058 | 0.08 | 4.70 | 4 | 150 | 4.00 | 4.00 |
Technical Specifications
| Item | Details |
|---|---|
| Brand | Triad Magnetics |
| Core Certifications | UL, CSA, IEC; RoHS compliant (since Feb 2016) |
| Product Type | High-performance through-hole common-mode choke |
| Core Function | EMI/RFI suppression, noise filtering in power supply lines |
| Key Specifications | Rated Voltage: 250VAC; Dielectric Withstanding Voltage: 2000VAC; Insulation Resistance: ≥100MΩ; Operating Temp.: -20℃~105℃; Max. Temp. Rise: ≤45℃; Weight: ~2.60 oz |
| Specifications Range | Inductance: 4.7mH~22mH; Current Carrying Capacity: 1.8A~4.0A; DCR: 0.2Ω~400mΩ (varies by model) |
| Core Structure & Features | Sectional winding; low leakage flux, high self-resonant frequency, low stray capacitance, high impedance at applicable frequency |
| Mounting Type | Through-hole (THT) |
| Application Scenarios | Industrial equipment, electronic systems, power supply filtering equipment |
| Distribution Channels | DigiKey, Mouser and other global distributors |
| Common Part Numbers | ET3542-052, ET3542-053, ET3542-054, ET3542-055, ET3542-057, ET3542-058 |
