High-Performance Common Mode Choke SLFE8.3 Series for Industrial and Telecom EMI Filtering
Designed for robust EMI suppression in space-constrained applications, the SLFE8.3 Series Common Mode Choke delivers exceptional noise filtering across a wide temperature range. Engineered with a wire-wound construction, this compact choke provides high impedance to common mode noise while maintaining high current ratings and low DCR. With a high isolation voltage of 1500 Vdc and an extended operating temperature range of -40°C to +105°C, it ensures reliable performance in industrial, telecom, and automotive environments.
Key Features
- Wide Inductance Range: Available from 1 mH to 50 mH to meet diverse filtering requirements
- High Isolation Voltage: Hi-Pot tested at 1500 Vdc for 3 seconds, ensuring superior safety and system protection
- Extended Temperature Range: Rated for operation from -40°C to +105°C, making it suitable for harsh environments
- Compact Footprint: Max dimensions of 10×9.5×10.5 mm for high-density PCB layouts
- Excellent EMI Suppression: Wire-wound construction provides high impedance to effectively suppress common mode noise in power and signal lines
- RoHS Compliant: Meets environmental standards for global markets
Electrical Specifications
@25°C
| Part Number |
Inductance (mH) +50%/-30% N1=N2 |
Test Frequency |
DCR (Ω) Max |
IDC (A) Max |
| SLFE8.3-102Y |
1.0 |
1.0 kHz / 0.3V |
0.32 |
0.3 |
| SLFE8.3-502Y |
5.0 |
1.0 kHz / 0.3V |
0.58 |
0.3 |
| SLFE8.3-103Y |
10 |
1.0 kHz / 0.3V |
0.77 |
0.2 |
| SLFE8.3-153Y |
15 |
1.0 kHz / 0.3V |
0.82 |
0.2 |
| SLFE8.3-203Y |
20 |
1.0 kHz / 0.3V |
1.36 |
0.18 |
| SLFE8.3-253Y |
25 |
1.0 kHz / 0.3V |
1.54 |
0.18 |
| SLFE8.3-303Y |
30 |
1.0 kHz / 0.3V |
2.40 |
0.14 |
| SLFE8.3-353Y |
35 |
1.0 kHz / 0.3V |
2.60 |
0.14 |
| SLFE8.3-403Y |
40 |
1.0 kHz / 0.3V |
3.40 |
0.10 |
| SLFE8.3-503Y |
50 |
1.0 kHz / 0.3V |
4.80 |
0.06 |
Applications
- Industrial Equipment: Noise suppression for DC power lines and control systems
- Telecommunications Infrastructure: EMI filtering for base stations and network devices
- Automotive Electronics: Common mode noise filtering in infotainment and control units
- Power Supply Units: Designed for use in power converters and DC-DC converters requiring reliable common mode choke performance
- Data Communication Systems: Effective noise filtering to ensure signal integrity