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Part No.	HCTR
Manufacturer	API
Size	4Mb
Pages	2 pages
Description	High Current Toroidal Inductors

Datasheet Summary with AI

1. Overview:

️· Product: HCTR/HCT Series High Current Toroidal Inductors
️· Manufacturer: API Delevan
️· Purpose: Designed for applications requiring high current capacity.

2. Physical Dimensions (in inches):

Model A B C D E F

HCT-37x 0.615 0.600 0.370 0.500 0.440 0.500

HCT-44x 0.665 0.665 0.400 0.560 0.490 0.560

HCT-50x 0.740 0.740 0.400 0.630 0.560 0.630

HCT-68x 0.945 0.940 0.400 0.820 0.700 0.820

️· Tolerance: All dimensions are within a tolerance of ±0.010 inches.

3. Mechanical & Electrical Characteristics:

️· Mounting: Surface mount, low profile, self-leaded.
️· Frequency Range: 1 kHz to 1 MHz
️· Operating Temperature: -30°C to +130°C
️· Lead Finish: Solder Tinned
️· Material Compliance: Meets UL94V-0 fire safety standard.
️· Marking: The marking includes "API" and the part number (e.g., HCT-504).
️· Packaging: Available in bulk; tape & reel options are available upon request.

4. Electrical Performance (Important Notes & Formulas):

️· Core Loss Formulas:
- ≤ 10 kHz: Core Loss = 1.47 x 10-8 * f0.971 * B2.11 (Units not explicitly provided, likely mW/cm3)
- ≥ 10 kHz: Core Loss = 9.07 x 10-10 * f1.26 * B2.11 (Units not explicitly provided, likely mW/cm3)
️· Gauss Limitations: Specific Gauss limits are provided for different models:
- HCT-37x: 50 Gauss
- HCT-44x: 25 Gauss
- HCT-50x: 15 Gauss
- HCT-68x: 10 Gauss

️· Bpk: (Value not provided but implied to be a characteristic of core)
️· RMS Flux Density (Erms): 108
️· Air Gap (A): 4.44 Anf

5. Important Disclaimers/Caveats:

️· The data provided is a guideline. The actual performance may vary depending on the application and environmental conditions.
️· Exceeding the specified DC current levels (resulting in a 55°C rise from a 25°C ambient) is for reference only and not intended for continuous use.
️· AC or ripple flux significantly impacts performance.

In essence, this documentation is for engineers and designers looking to select the appropriate HCTR/HCT inductor for their specific application, while taking into account limitations and factors that can influence performance.

Model	A	B	C	D	E	F
HCT-37x	0.615	0.600	0.370	0.500	0.440	0.500
HCT-44x	0.665	0.665	0.400	0.560	0.490	0.560
HCT-50x	0.740	0.740	0.400	0.630	0.560	0.630
HCT-68x	0.945	0.940	0.400	0.820	0.700	0.820