Signal Transformer / Bel SCS Current-Sensing Transformers

Signal Transformer / Bel SCS High-Frequency SMD Current-Sensing Transformers detect the current passing directly through an application’s conductor. Bel SCS Transformers can accurately sense current flow in power supply circuits in a non-invasive way, along with safety and control circuits. This current sensor with a 50kHz to 1MHz frequency range can be used in various applications, including feedback control, load drop/shutdown protection, safety/control circuits, and power-supply DC-DC converters/chargers. This series presents a cost-effective, low-loss approach to measuring currents in high-frequency voltage regulators and switch-mode power supplies.

Features

Low DC resistance
Different turns ratios

Designed for automatic pick and place
Surface mount technology

Applications

Switching power supplies
Feedback control
Overload sensing

Motor control
Load drop/shutdown detection

Specifications

400mΩ to 11.5Ω secondary resistance
20:1 to 125:1 turns ratio
30µH to 3000µH inductance
EE Core, 5.0
50kHz to 1MHz frequency range
Up to 10A sensed current primary rating
-40°C to +125°C operating temperature range

Primary current of 10A causes less than +40°C temperature rise above +25°C ambient, higher current causes an increased temperature rise
If the product is preserved for more than 1 year below +35°C and humidity 35-65% RH, the solderability of the terminals may deteriorate

Signal Transformer / Bel SCS Current-Sensing Transformers

Features

Applications

Specifications

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