Products / Energy Storage Chokes (CSHP)
Energy Storage Chokes (CSHP)
Series: CSHP – 10, 14, 15, 18, 20, 22, 23, 28, 33
Chokes in vertical and Horizontal version enable very space economising, compact printed circuit board assembly.
Storage chokes are used in switching power supplies (switch mode regulators) as intermediate energy storage.
These modern supply units offer fundamental advantages compared with older linear regulators: small construction size, low power losses, good efficiency and best no load operation behaviour.
In order to achieve these advantages, only high quality materials must be used as toroidal core.
CALTRON storage chokes achieve their super qualities above all through the use of the special material Molypermalloy, an 80% nickel-iron compound. Compared with the iron powder core material the thermal behaviour at high switching frequencies (<200kHz) is excellent.
The chokes have an almost constant inductance even with high alternating field modulation and high DC pre-magnetising current.
The simple construction enables high performance parameters with low heat development and an optimum price-performance ratio. Four closed housings are complemented by one version in open structure.
Specification Sheet
| Nominal current | : 0.63 ÷ 4A |
| HF current ripple | : ΔI = 20% IN |
| Inductance at IN = 0 | : 15 ÷ 470 μH |
| Inductance drop at IN | : max. 20% |
| Max. operating voltage | : UR 600 VDC |
| Operating frequency | : up to 200 kHz |
| Test voltage | : 2 kVAc /2s, wdg. to ambient |
| Climatic class | : 40/125/21 as per IEC 60068-1 |
| Inflammability | : UL 94 V-0 |
DEFINITIONS
Definitions
| N | turn ratio or voltage ratio between primary and secondary windings. |
| ∫Udt | voltage-time area (Vμs)
This is the product of impulse height and pulse width measured at half impulse height. |
| tr | Pulse rise time (μs)
This time is measured from 10% ÷ 90% of the pulse height. |
| If | Firing current (A) Max. available pulse current. |
| LP | Primary inductance (mH) Measured as per EN 60938 ( signal 0.1mA, tolerance -30 +50%). |
| CC | Coupling capacity (pF) Measured between primary and secondary winding. Is heavily dependent on the winding structure. |
| UR | Maximum operating voltage (V) |
| UP | Test voltage (kV) Measured between primary and secondary winding Also dependent on the winding structure. Measurement 100% in the final test (up to 3.5 kV AC for 2 seconds). |
| UG | Glow discharge voltage (V) Determines the life expectancy of the IT's in operation with excessive operating voltage. At least 50% higher than the max. operating voltage. |
| Pd | Maximum power loss at 50°C ambient temperature. |
Filter by:
Version
IN [A]
(@ ϑa 70°C)LN [μH]
±15%
SMD
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