High-Frequency Ring Core Inductor Suppliers in China - Low Leakage, Impulse Strength, and RoHS Compliant Factory
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 mmMax. 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 (FAQ)
What are the standard testing conditions for these common chokes?
The standard testing conditions for checking the inductance parameters of these common chokes are 1.0 kHz at 0.25 V.
Is custom development available for specific core shapes or specifications?
Yes, custom development is fully available to accommodate your unique technical requirements, design shapes, and electronic specifications.
What is the nominal voltage rating for these models?
All standard models listed in the specifications table feature a nominal voltage rating of 250 V.
How wide is the rated current range across the different core shapes?
The rated current ranges from 0.3 A for compact cores (like T14*9*5) up to 16.5 A for larger core shapes (like T31*19*27).
What is the maximum DC resistance (DCR) for these chokes?
The maximum DC resistance varies significantly by model, ranging from 0.12 Ω for the T16*12*8 core up to 90.0 Ω for the larger T16*12*8 high-turns configuration.