HBU250 / HEU250 series is a power supply with medical and ITE safety
approvals that provides 250 Watts output power and is available in
12V-48V output with options for open-frame (2”x4”x1.28”) and cover
with fan. The series features a wide operating temperature of -40°C to
+70°C. All units pass burn-in test at full load condition.

SPECIFICATION NOTE :
1. HEU250A-F and HEU250B-F series support a peak load 3 sec. max of 300 W for 3 seconds in every 13 seconds.(Refer FIG 3.)
2. HBU250 and HEU250 series support a peak load 3 sec. max of 300 W for 3 seconds in every 30 seconds.(Refer FIG 4.)
3. At factory, in 60% rated load condition, each output is checked to be within voltage accuracy.
4. Line regulation is defined by changing ±10% of input voltage from nominal line at rated load.
5. Load regulation is defined by changing ±40% of measured output load from 60% rated load.
6. The ripple is measured from peak to peak with a bandwidth-limit of 20MHz
(Measured at the output connector with a 0.1uF ceramic capacitor and a 47uF electrolytic capacitor).
7. Hold up time is measured from the end of the last charging pulse to the time which the main
output drops down to low limit of main output at rated load and nominal line.
8. Efficiency is measured at rated load, and nominal line.
9. Compliance with the requirement of EMC (Class II equipment) shall be insert appropriate ferrite core,
please contact us for more information.

OUTPUT CABLE REMARK :
1. Input connector mates with JST housing VHR-5N and JST SVH series crimp terminal.
2. Output connector mates with JST housing VHR-6N and JST SVH series crimp terminal.
3. Fan connector mates with JOINT_TECH housing A2501H-02P-N and JOINT A2501-XX-A series crimp terminal.
4. Fan comes with a 1-year warranty. The specifications of the fan are: (1) DC FAN, YEN_SUN,
#FD124010EB (2) DC FAN, SUNON, MF40101V1-10000-A99