DC-DC
Input
Input Voltage Range • See Models & Ratings table
Input Transient • ±250 V for 50 µs 15 mJ,
100 V for 50 ms 0.5 Ω
per MIL-STD-1275A/B/C/D
Input Reverse Voltage • Continuous
Protection
Fuse Protection • None
Output
Output Voltage • Tracks input voltage & clamps <36 VDC
Output Power • See Models & Ratings table
Output Module Inhibit • Open collector transistor rated
(INH) 70 VDC with 5 mA sink current referenced
to -Vin/-Vout.
When the output current is:
>4 A: DSF100, >7.77 A : DSF200LV
>28 A: DSF500 then the INH pin is pulled
logic low.
This can be used to inhibit downstream
DC-DC converters and reduce the load on
the filter. When the output current is lower
than above the INH pin is logic high.
Overtemperature • Shuts down output by pulling disable pin
Protection low when baseplate >100 °C. Typical
hysteresis 5 °C auto recovery (not fitted to
‘-H’ models)
Specification
Filter & Surge Protection
• Up to 28 A Output Current
• Up to 500 W Output Power
• A
ctive Surge Protection
• MIL-STD 461 and DEF-STAN 59-411
• MIL-STD 1275 and DEF-STAN 61-5
• MIL-STD 810
• 3 Year Warranty
DSF/FSO Series
xppower.com
General
Efficiency • See Table
Isolation Voltage • 500 VDC Input & Output to Case
Series Resistance • 0.07 Ω DSF100, 0.26 Ω DSF200LV,
0.018 Ω DSF500, 0.013 Ω FS0461
Disabled Input Current • 25 mA
Disable (DIS) • On = Logic high or open circuit
Off = Logic low or short circuit
No Load Current • 75 mA
Package Style • Photo-etched nickel-silver case &
aluminium cooling baseplate
MTBF • DSF100: 2496 kHrs,
DSF200LV: 2218 kHrs,
DSF500: 573 kHrs,
FSO461: 8737 kHrs,
to MIL-HDBK-217F at 40 °C, GB
Environmental
Operating Temperature • -40 °C to +100 °C baseplate
Storage Temperature • -55 °C to +100 °C
Salt Atmosphere • MIL-STD-810G method 509.4
Humidity • MIL-STD-810G 507.4
Altitude • MIL-STD-810G 500.4
Shock • MIL-STD-810G 516.5 function test for
ground equipment 40 g in 3 axes
Vibration • MIL-STD-810G method 514.5C-17.
Minimum integrity test for military
equipment (1 Hr/axis, 3 axes).
Vibration 5-33 Hz, 0.5 mm displacement
EMC & Safety
Safety Approvals • CE marked LVD
Immunity • MIL-STD-1275A-D , MIL-STD-461E/F/G
(CS101, CS114, CS115 & CS116)
MIL-STD-704A, DEF-STAN 61-5 part 6 issue 5
Contact Sales when DEF-STAN-51-5 part 6
issue 6 is required
EMC Performance • DSF100 & DSF200LV: MIL-STD 461E/F
CE102 & DEF STAN 59-411 DCE01/DCE02
is achieved with external components.
DSF500: Compliance to MIL-STD 461E/F/G
CE102 & DEF STAN 59-411 DCE01/DCE02
is achieved when used in conjuction
with FS0461. See longform datasheet for
more information.
