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
•Active 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 ΩDSF200LV,
0.018 ΩDSF500, 0.013 ΩFS0461
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-810F method 509.4
Humidity • MIL-STD-810F 507.4
Altitude • MIL-STD-810F 500.4
Shock • MIL-STD-810F 516.5 function test for
ground equipment 40 g in 3 axes
Vibration • MIL-STD-810F 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
(CS101, CS114, CS115 & CS116)
MIL-STD-704A, DEF-STAN 61-5 part 6 issue 5
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
CE102 & DEF STAN 59-411 DCE01/DCE02
is achieved when used in conjuction
with FS0461. See longform datasheet for
more information.
28-May-13
DCDC
Mechanical Details
DSF/FSO
Models & Ratings
2.41 (61.2)
0.51
(13.0)
Customer mounting holes
ø3.2mm - 4 places
0.20
(5.0)
0.43
(10.9)
1.02
(25.9)
1.25
(31.8)
0.82
(20.9)
0.20
(5.1)
2.21 (56.1)
0.63
(15.9)
-VIN -VOUT
INH
DIS
+VOUT
+VIN
0.24 (6.2) ±0.04 (1.0)
0.75
(19.20)
1.45
(36.8)
0.15
(3.9)
0.75
(18.9)
1.06
(26.9)
0.19
(4.9)
Ø 0.13 (3.2)
in 2 places
1.37 (34.9)
0.19
(4.9)
0.51
(12.9)
0.71
(17.9)
0.90
(22.9)
1.10
(27.9)
DIS
+VOUT
-VIN
+VIN
INH
-VOUT
1.25
(31.9)
1.57 (39.9)
0.75
(19.2)
0.52
(13.2)
-VIN
-VIN
-VOUT
-VOUT
INH
DIS
+VOUT
+VOUT
+VIN
+VIN
0.18
(4.7)
0.65
(16.4)
0.84
(21.4)
2.09
(53.2)
0.18
(4.7)
Ø 0.13 (3.2) in 4 places
2.09 (53.2)
+VOUT
+VOUT
-VIN
-VIN
+VIN
+VIN
-VOUT
-VOUT
0.45
(11.4)
1.43
(36.4)
1.63
(41.4)
0.65
(16.4)
1.04
(26.4)
1.24
(31.4)
1.63
(41.4)
1.83
(46.4)
0.19
(4.7)
2.09
(53.2)
0.19
(4.7) 2.09
(53.2)
Mounting holes 0.126 (3.2)
4 places
2.28
(57.9)
2.28 (57.9)
0.45
(11.4)
1.63
(41.4)
1.83
(46.4)
0.64
(16.4)
2.28
(57.9)
0.75
(19.2)
0.51
(13.0)
2.28 (57.9)
0.75
(19.2)
0.51
(13.0)
DSF200LV Surge protection and filter
DSF100 Surge protection and filter
DSF500 Surge protection FSO461 Filter
Notes
Notes
1. For input voltages above 18 V, maximum load is 500 W.
2. FSO461 has filter circuitry only. To be used with DSF500 for conducted
immunity compliance.
3. DSF500 has surge protection only. To meet stated EMC performance it must
be used with FSO461.
4. For models without overtemperature protection, add suffix ‘-H’ e.g. DSF500-H.
Contact sales for further information.
Output Power Input Voltage Output Typical Efficiency Model Number(4)
Voltage Max Current
100 W 10-33 VDC <36 VDC 3.7 A 98% DSF100
30 - 54 W 10-18 VDC <36 VDC 3.0 A 92% DSF200 LV
126 - 230 W 18-33 VDC <36 VDC 7.0 A 93%
280 - 500 W 10-33 VDC <36 VDC 28.0 A(1) 98% DSF500(3)
500 W 0-100 VDC Vin - Iin x 0.013 28.0 A 99% FSO461(2)
1. All dimensions in inches (mm).
2. Weights: DSF100: 0.11 lbs (50 g)
DSF200LV: 0.18 lbs (80 g)
DSF500: 0.36 lbs (160 g)
FSO461: 0.36 lbs (160 g)
3. Tolerance ±0.011 (±0.3)
4. Pin diameter 0.04 (1.0)