NCS6S4812C Murata Power Solutions Inc, NCS6S4812C Datasheet - Page 3

• Manufacturer Part Number: NCS6S4812C
• Description: CONVERT DC/DC 6W 48IN-12VOUT T/H
• Manufacturer: Murata Power Solutions Inc
• Series: NCS6r
• Type: Isolatedr

Specifications of NCS6S4812C

• Number Of Outputs: 1
• Output: 12V
• Power (watts): 6W
• Mounting Type: Through Hole
• Voltage - Input: 18 ~ 75V
• Package / Case: 24-DIP Module (600 mil, 7 Leads)
• 1st Output: 12 VDC @ 500mA
• Size / Dimension: 1.26" L x 0.79" W x 0.39" H (32mm x 20.1mm x 9.9mm)
• Power (watts) - Rated: 6W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 84%
• Approvals: UL
• Output Power: 6 W
• Input Voltage Range: 18 V to 75 V
• Input Voltage (nominal): 48 V
• Output Voltage (channel 1): 12 V
• Output Current (channel 1): 0.5 A
• Isolation Voltage: 1.5 KV
• Output Voltage: 12 V
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 811-2113

CHARACTERISATION TEST METHODS
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specifi ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NCS6 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1.5kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
For a part holding no specifi c agency approvals, such as the NCS6 series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or
60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part
could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must
be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to
safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NCS6 series has an ER ferrite core, with no additional insulation between primary and secondary windings of enameled wire. While parts can be
expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane)
is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly
advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specifi ed test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
RoHS COMPLIANCE INFORMATION
www.murata-ps.com
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test confi guration.
Differential Mode Noise Test Schematic
C1
C2
C3
R1
R2
T1
RLOAD
Measured values are multiplied by 10 to obtain the specifi ed values.
1μF X7R m ultilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100mΩ at 100 kHz
100nF multilayer ceramic capacitor, general purpose
450Ω resistor, carbon fi lm, ±1% tolerance
50Ω BNC termination
3T of the coax cable through a ferrite toroid
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination fi nish
on this product series is a Gold fl ash (0.05-0.10 micron) over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
SUPPLY
DC/DC Converter
Input
+
-
Output
+
-
C1 C2 C3
R LOAD
Isolated 6W 4:1 Input Single & Dual Output DC/DC Converters
R1
T1
Technical enquiries email: [e-mail], tel: [phone]
R2
OSCILLOSCOPE
Y INPUT
2010-07-21 KDC_NCS6C.C03 Page 3 of 10
NCS6 Series