High-Frequency Ring Core Common Mode Choke - China Factory Suppliers with Low Noise and High Impulse Strength
Shape and External Dimensions (mm)
Electronic Specifications
| Core shape | T14*9*5 | T14*8*7 | T16*12*8 | T16*12*8 | Note: Conditions for checking inductance: 1.0 kHz 0.25 V Custom development is available | T16*12*8 | T31*19*13 | T31*19*27 | T36*23*15 | T42*26*16 | Note: Conditions for checking inductance: 1.0 kHz 0.25 V Custom development is available |
| Size mm Max. A | 16.0 | 17.0 | 19.0 | 20.0 | 28.0 | 36.0 | 41.0 | 43.0 | 55.0 | ||
| Max B | 7.0 | 11.5 | 12.0 | 13.0 | 20.3 | 23.0 | 42.0 | 25.0 | 37.0 | ||
| Min. C | 15.0 | 15.0 | 15.0 | 15.0 | |||||||
| ±0.05 CD | 0.3 | 0.4 | 0.3 | 0.6 | |||||||
| Max. C | 25.0 | 36.0 | 38.0 | 40.0 | 54.0 | ||||||
| Min. D | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | ||||||
| +0.5 E | 15.5 | 17.5 | 21.5 | 17.5 | 24.0 | ||||||
| ±0.3 F | 10 | 12.5 | 30.5 | 31.0 | 18.0 | ||||||
| +0.1CG | 1.0 | 1.3 | 2.3 | 1.2 | 2.2 | ||||||
| Rated current A | 0.3 | 0.5 | 0.3 | 1.1 | 3.2 | 6.3 | 16.5 | 5.2 | 16.0 | ||
| Nominal voltage V | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | 250 | ||
| DC Resistance Max.Ω | 0.25 | 0.15 | 0.45 | 0.12 | 90.0 | 20.0 | 5.0 | 7.0 | 6.0 |
Frequently Asked Questions
What are the testing conditions for measuring the inductance of these common chokes?
The standard electrical testing condition for checking the inductance of these common mode chokes is 1.0 kHz at 0.25 V.
Can I request custom specifications for these common mode chokes?
Yes, custom development is fully available. We can design and manufacture common mode chokes tailored to your specific size requirements and electrical properties.
What is the nominal voltage rating for these components?
The nominal voltage rating for all the standard core shapes listed (from T14 to T42 sizes) is 250 V.
What is the range of rated current for these chokes?
Depending on the core dimensions and design, the rated current ranges from a minimum of 0.3 A (for smaller sizes like T14*9*5) up to a maximum of 16.5 A (for larger configurations like T31*19*27).
How does the DC Resistance (DCR) vary across different core models?
The maximum DC Resistance varies significantly based on wire turns and core size, ranging from as low as 0.12 Ω (for T16*12*8) up to 90.0 Ω (for T16*12*8 high-turn specifications).