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- CT02 Series
Key Features
- 4.6 mm low-profile SMT current-sense transformer
- Compact 6.5 mm × 6.0 mm PCB footprint
- Supports primary currents up to 18 A
- Supports SMPS switching frequencies up to ~1.5 MHz
- 1,500 VAC Hi-Pot tested primary-to-secondary isolation
- Turns ratios from 1:50 to 1:250
- Operating temperature ranges from –40°C to +130°C
- Reflow-ready SMT design with tape-and-reel packaging
- Suitable for pick-and-place assembly
APPLICATIONS
- DC/DC converters for industrial, telecom, and embedded system
- AC/DC power supplies and front-end conversion stages
- POL (Point-of-Load) regulators requiring precise inductor current sensing
- Feedback and current-mode control loops in switching power supplies
- Overload, short-circuit, and protection monitoring circuits
- Distributed power systems and board-level current measurement
- DC/DC converters for industrial, telecom, and embedded system
- AC/DC power supplies and front-end conversion stages
- POL (Point-of-Load) regulators requiring precise inductor current sensing
- Feedback and current-mode control loops in switching power supplies
- Overload, short-circuit, and protection monitoring circuits
- Distributed power systems and board-level current measurement
Electrical Specifications @ 25°C - Operating Temperature Range1: -40°C to +130°C
Part Number
Turns Ratio
(TR)
Secondary Inductance2 (mH,Min)
Primary
DCR (1-2)
(mΩ,Ref)
Secondary
DCR (4-3)
(Ω,Max)
Current Rating3 (A,Max)
SRF4 (4-3) (MHz,Typ)
ET Product7
(V-μs, Max)
Hi Pot
(VAC)
Mechanical Drawing
Recommended PCB Layout
Schematic
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Operating Temp. Range: The combination of ambient temperature and temperature rise.
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Secondary Inductance: Tested at 10kHz, 0.1VRMS.
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Current Rating: Peak current (50% duty cycle) through primary (1-2) to cause 40°C temperature rise at 25°C ambient.
-
SRF: Values are for reference only.
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Flammability Standard: Meets UL 94V-0.
-
Terminating Resistor (RB): To calculate the value use the formula,
RB = EOTR/IP -
ET Product: The maximum ET is based upon a flux density of 3700 Gauss at 25°C. Suitable for bipolar applications only.
ET = EO/2f
EO = IPRB/TRWhereas,
EO = Output voltage (V)
TR = Turns Ratio
RB = Term. Resistor (Ω)
f = Frequency (Hz)
IP = Primary Current (A) -
PACKAGING
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Reel Diameter: 13”
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Reel Width: 16 mm
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Pieces/Reel: 1000
-
Specifications subject to change without prior notice.