High Performance 120W DC-DC Converters for Harsh Environments

TDK Corporation announces the introduction of the 12V, 24V and 28V output HQA DC-DC converters, with additional output voltage models to be added in the coming months.  Packaged in a ruggedized quarter brick form factor, the encapsulated HQA120 models can deliver 120W output power and will operate over a 9V to 40V input range (50V for 1 second). These 89% efficient converters are suitable for use in COTS, communications and industrial equipment.

The HQA120 has been qualified using methods consistent with MIL-STD-883 & 202, and offers a two screening and operating temperature options.  The M-Grade has functional testing in cold, hot and room ambient temperatures, and an extended 96 hour burn-in with ten-cycle temperature testing.  The S-Grade has functional testing at room ambient temperature and a standard burn-in period.  The full load operating temperature for the M-Grade is -55 to +115°C and -40 to +115°C for the S-Grade.

Two baseplate mounting versions are available.  All models are fully regulated, have a constant switching frequency for easier system EMC integration and utilise no opto-couplers in the control loop for increased reliability.   Full auto-recovery protection is provided and the output can be adjusted ±10% or turned on or off remotely.

Safety certification includes IEC/EN 60950-1, UL/CSA 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.  Input to output and input to baseplate isolation is 2250Vdc.

About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK';s comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2019, TDK posted total sales of USD 12.5 billion and employed about 105,000 people worldwide.