NEW DC/DC CONVERTER 25% LOWER COST, WITH MEDICAL SAFETY APPROVAL

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20W isolated 2:1 DC-DC converters with 2 x MOPP reinforced insulation for medical applications

We announce XP POWER has released the new JHM20 series of PCB mount regulated single and dual output converters featuring a reinforced insulation system with International medical safety approvals for healthcare applications.

Its benefits compared to the JMM20 are: around 25% reduction in price, a reduced 2.5μA patient leakage current and a ±10% output voltage trim capability, in a lower profile housing.

The 20 Watt JHM20 is available in three input ranges: 9.0 to 18VDC for 12VDC; 18 to 36VDC for 24VDC; 36 to 75VDC for 48VDC. There are three single regulated output voltages: 5; 12 & 15VDC, trimmable ±10% using an external resistor; and three fixed dual output voltages: ±5; ±12 & ±15VDC. This combination of models allows single outputs up to 30VDC along with the three dual output options.

The units offer isolation of 4.0kVAC input/output with reinforced insulation, 2 x MOPP (Means of Patient Protection) at 250VAC working voltage, and a low 2.5µA patient leakage current. Standards include: CB IEC60601-1 including risk management (medical); UL ANSI/AAMI ES60601-1 & CSA C22.2 No. 60601-1 (medical); EN55011 Class A standard for conducted EMC emissions with no external components; IEC60601-1-2, EN61000-4-2,3,4,5,6,8 for EMC (with external components). 

The efficiency of the JHM20 series is 89%, with a no-load input current  between 3 and 11mA depending on model. Short circuit, overload & overvoltage protection is provided, together with under voltage lockout. Operating altitude is 3048m (10,000 ft). The MTBF is greater than one million hours (MIL-HDBK-217F, +25°C GB).

Packaged in non-conductive UL94V-0 black plastic PCB mount case which measures 2.00” x 1.00” x 0.40” (50.8 x 25.4 x 10.2mm). The convection cooled converters have a wide operating temperature range of -40°C to +80°C, with full power available to +60°C (see datasheet for derating curve).

The JHM20 adds a lower cost, 20W PCB mount capability to the range of DC-DC converters for medical applications. They are suitable for low power medical applications where there is a requirement for a DC-DC converter to provide a reinforced isolation barrier in patient contact or patient vicinity applications.  

•    Regulated single & dual outputs from 5 to 30VDC
•    Single outputs trimmable ±10%
•    2:1 Input range
•    Input ranges 9 to 18, 18 to 36, 36 to 75VDC
•    2” x 1” footprint PCB mount
•    International medical approvals 
•    4kVAC reinforced isolation
•    2 x MOPP @ 250VAC working voltage
•    2.5μA Patient leakage current
•    Medical approval, IEC60601-1, 3rd Edition including risk management
•    EN 55011 Class A with no external components
•    -40°C to +80°C operating temperature
•    Full power to +60°C
•    MTBF >1 Mhrs (MIL-HDBK-217F, +25°C GB)
•    3 year warranty

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