NDY Series
Isolated 3W Wide Input DC-DC Converters
KDC_NDY.I01 Page 1 of 5
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SELECTION GUIDE
Order code
Input
voltage
Rated output
voltage
Output current
Input
current
full load
Efficiency 2
(Min.)
Isolation
capacitance
MTTF 3
Min.
Load 1Full load
V (Nom.) V mA mA mA % pF kHrs
NDY0505C 5 5 100-150 400-600 615 66 40 1939
NDY0509C 5 9 55-83 222-333 563 72 52 1926
NDY0512C 5 12 42-62 166-250 548 71 43 1907
NDY0515C 5 15 33-50 133-200 533 73 44 1924
NDY1205C 12 5 150 600 362 71 36 1928
NDY1209C 12 9 83 333 320 78 52 1916
NDY1212C 12 12 62 250 316 78 44 1897
NDY1215C 12 15 50 200 308 79 47 1914
NDY2405C 24 5 150 600 174 70 36 1673
NDY2409C 24 9 83 333 156 78 52 1663
NDY2412C 24 12 62 250 154 80 44 1644
NDY2415C 24 15 50 200 150 82 54 1657
NDY4805C 48 5 150 600 87 73 35 1668
NDY2403C 24 3.3 227 909 178 70 30 1671
Recommended
Alternative
NDY4803C 48 3.3 227 909 87 71 30 1676 NCS3S4803SC
NDY4809C 48 9 83 333 78 80 52 1663 Contact Murata
NDY4812C 48 12 62 250 77 81 44 1648 NCS3S4812SC
NDY4815C 48 15 50 200 76 81 53 1661 NCS3S4815SC
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
All NDY05XX 4.5 5 9
VDC
All NDY12XX 9 12 18
All NDY24XX 18 24 36
All NDY48XX 36 48 72
Reflected ripple current 2
NDY2403 180 360
mA p-p
NDY4803 140 290
All NDY05XX 400 500
All NDY12XX 150 170
All other NDY24XX 290 360
All other NDY48XX 100 127
1. Refer to power derating graph.
2. Measured at full load with external input/output capacitors, refer to filter circuit 1.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
UL 60950 recognised
Industry standard footprint
Efficiency to 82%
1kVDC Isolation ‘Hi Pot Test’
2:1 wide input range
Single isolated output
Short circuit protection
Low profile 24 pin case
Operating temperature range -40ºC to 85ºC
5V, 12V, 24V & 48V input
3.3V, 5V, 9V, 12V & 15V output
Internal SMD construction
Fully encapsulated
DESCRIPTION
The NDY series is a range of low profile DC-DC
converters offering a single regulated output over a
2:1 input voltage range. All parts deliver 3W output
power up to 85ºC without heatsinking, except the
4.5V to 9V input voltage range which should be
derated to 2W at the lower input voltage. A flyback
oscillator design with isolated feedback is used to
give regulation over the full operating range of 25%
to 100% of full load. It is strongly recommended
that external capacitors be used on input and
output to guarantee performance over full load and
input voltage range.