NPH10S Series
Isolated 10W Single Output DC/DC Converters
KDC_NPH10SC.J03 Page 1 of 8
www.murata-ps.com
www.murata-ps.com/suppor t
For full details go to
www.murata-ps.com/rohs
SELECTION GUIDE
Order Code
1
Nominal
Input
Voltage
Output
Voltage
Output
Current
Current
Limit
2
(Typ.)
Efficiency
Max. Load
Capaci-
tance
MTTF
3
V V A A % μF kHrs
NPH10S2403EiC 24 3.4 2.94 4.3 79 470 279
NPH10S2403iC 24 3.4 2.94 4.3 79 470 279
NPH10S2405EiC 24 5.1 1.96 3.1 83 470 275
NPH10S2405iC 24 5.1 1.96 3.1 83 470 275
NPH10S2412EiC 24 12.1 0.83 1.2 86 100 259
NPH10S2412iC 24 12.1 0.83 1.2 86 100 259
NPH10S2415EiC 24 15.1 0.67 1.1 86 47 243
NPH10S2415iC 24 15.1 0.67 1.1 86 47 243
NPH10S4803EiC 48 3.4 2.94 4.1 80 470 317
NPH10S4803iC 48 3.4 2.94 4.1 80 470 317
NPH10S4805EiC 48 5.1 1.96 2.8 83 470 312
NPH10S4805iC 48 5.1 1.96 2.8 83 470 312
Obsolete
Recommended
Alternative
NPH10S4812EiC 48 12.1 0.83 1.3 86 56 291 UEI15-120-Q48P-C
NPH10S4812iC 48 12.1 0.83 1.3 86 56 291 UEI15-120-Q48P-C
NPH10S4815EiC 48 15.1 0.67 1.0 87 22 272 UEI15-150-Q48P-C
NPH10S4815iC 48 15.1 0.67 1.0 87 22 272 UEI15-150-Q48P-C
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 24V input types 18 24 36
V
Continuous operation, 48V input types
4
36 48 75
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage set point error
50% load after 30 mins at nominal sup-
ply voltage
0.5 %
Overall voltage error
Case temperature -40ºC to 110ºC
Load 0% - 100%
Input specified range
1 2.5 %
Temperature coefficient of
output voltage (slope)
Over any 10ºC span within the specified
temperature range
50 250 ppmºC
Deviation of output voltage Specified over temperature MIN-MAX 0.5 1 %
Line regulation Operating voltage range, 50% load 0.05 0.1 %
Load Regulation 0% - 100% rated load
5
0.5 %
Ripple rms 70 mV
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types -0.5V to 40V
6
Input voltage, 48V input types -0.5V to 80V
6
Output voltage -0.3V to controlled output voltage (operating or non-operating)
Output trim control -1V to +30V
Synchronisation/shutdown control ±15V relative to input return
1. Parts ending with EiC have optional TRIM and SS pins fitted.
2. Current is quoted when output is 95% of regulated voltage.
3. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
4. For applications requiring UL 1950 recognition, input voltage must not exceed 60VDC.
5. A minimum load of 10% of rating is recommended for typical applications.
6. Absolute maximum value for 30 seconds. Prolonged application may damage the product.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
RoHS compliant
High efficiency to 87%
Power density up to 1.5Wcm
3
UL1950 recognized
Industry standard pinout
Surge rating to 12W
Non latching current limit
1.5kV input to output isolation
Versatile control options
Continuous rating to 10W at 72ºC without
heatsink
Operation to zero load
Protected against load faults
Internal over temperature protection
Uses no electrolytic capacitors
Fixed frequency
No external components required
DESCRIPTION
The NPH10S series of DC/DC converters combines
ease of application with versatility. The pin pattern
is based on the popular industry standard, but two
additional pins may optionally be fitted to provide
a variety of features not commonly found on units
of this type. High efficiency enables full rating to
be achieved in a small package without heat-
sinking. Thermally protected against sustained
overload. The copper case achieves efficient heat
transfer and screening. The product range has
been recognised by Underwriters Laboratory (UL)
to UL 1950 for operational insulation, file number
E151252 applies.
