IN Brief:
- QAM60T provides 60W from a 9V to 36VDC input in a quarter-brick package.
- HBM150C raises power to 150W with an 18V to 36VDC input and half-brick format.
- Both ranges target medical equipment with 2 × MOPP, 5kVAC isolation, and low patient leakage.
XP Power has introduced two medical DC-DC converter families for BF- and CF-rated equipment, combining reinforced isolation and low patient leakage with industry-standard brick formats. The 60W QAM60T uses a quarter-brick package, while the 150W HBM150C uses a half-brick format for higher-power systems.
Both ranges are designed around IEC 60601-1 medical safety requirements and provide 2 × MOPP with 5kVAC input-to-output isolation. Applications include patient monitoring, diagnostic and imaging equipment, treatment systems, surgical equipment, and medical robotics, where power conversion has to be considered alongside leakage current, thermal management, isolation, and available board area.
The QAM60T accepts a 9V to 36VDC input, giving it a 4:1 range suited to battery-backed and intermediate-bus designs. Single-output versions provide 5V, 12V, 15V, or 24VDC, while dual-output devices provide ±12V or ±15V. XP Power specifies efficiency up to 93.5%, patient leakage current of 4.5µA, and an operating temperature range from -40°C to +105°C.
Remote on/off and remote sense are included, alongside short-circuit, overload, and overvoltage protection. The quarter-brick module is baseplate cooled, giving designers a defined conduction path into the chassis or a cold plate. That can be useful in sealed or acoustically constrained medical equipment where airflow is limited or undesirable.
The HBM150C raises output power to 150W and uses an 18V to 36VDC input range. It is offered with single 12V, 15V, and 24V outputs, patient leakage below 10µA, and efficiency up to 91.5%. XP Power specifies operation from -40°C to +100°C, with remote control and sensing plus overvoltage, overtemperature, and short-circuit protection.
The two ranges address different points in the same power architecture. A 60W quarter-brick can support distributed conversion near an imaging, sensing, or control subsystem, while a 150W half-brick can feed a larger local load from a nominal 24V-class bus. The practical choice depends on transient demand, required isolation, thermal interface, allowable leakage, and the downstream point-of-load regulators.
Thermal design remains central even at the quoted efficiencies. Conversion losses still become heat inside equipment that may already contain processors, displays, motors, imaging electronics, and batteries. A baseplate can simplify the path from the converter into the mechanical structure, but the finished system still has to demonstrate acceptable component temperatures across its specified ambient range and operating modes.
Medical isolation also has to be assessed at system level. A converter carrying 2 × MOPP can reduce the amount of additional isolation required elsewhere, but the finished product still depends on creepage and clearance, protective earth arrangements, EMC behaviour, applied-part classification, and the way patient-connected circuits are partitioned. The converter provides a qualified building block rather than a substitute for complete equipment compliance.
The QAM60T is also specified for industrial automation, telecommunications infrastructure, distributed power systems, and battery-operated equipment. That allows the same basic converter family to appear in non-medical equipment where the isolation rating, input range, or brick format is attractive, although medical designs place tighter emphasis on leakage and approvals.
Qualification of the surrounding power chain will still shape adoption. Medical equipment often combines mains conversion, batteries, intermediate buses, isolated DC-DC stages, and point-of-load regulation, so efficiency and leakage have to be assessed across the complete architecture. The brick format can simplify one conversion stage, but cabling, connectors, filtering, and downstream converters still contribute losses, emissions, and thermal load.
Availability through established distributors also makes the ranges accessible for prototype and low-volume development before larger production commitments are made. Medical power architecture is normally fixed well before final regulatory submission, leaving limited room to replace an isolation stage late in the design process.
XP Power says both families are available through distributors including DigiKey, Mouser, Newark, and RS, as well as directly from the company, and carry a three-year warranty. The launch extends its medically approved DC-DC range across two established package sizes, giving designers a choice between the wider input flexibility of the 60W QAM60T and the higher output power of the 150W HBM150C.
