Setpoint Accuracy ±1%
Line Regulation VinMin. - VinMax., I
out
Rated ±0.1% V
out
Load Regulation I
out
Min. - I
out
Max., VinNom ±0.2% V
out
Minimum Output Current 10 % I
out
Rated
Dynamic Regulation, Loadstep 25% I
out
Pk Deviation 4% V
out
Settling Time 500 ms
Short Circuit / Overcurrent Protection Shutdown / Hiccup
Current Limit Threshold Range, % of I
out
Rated 110 - 130%
TECHNICAL SPECIFICATIONS
Voltage Range
24 VDC Nominal 18 - 36 VDC
48 VDC Nominal 36 - 72 VDC
Reflected Ripple 25 mA
Input Reverse Voltage Protection Shunt Diode
SMS surface-mountable DC/DC converters feature up to
12 Watts of output power. The SMS is a fully isolated
converter with 1500 VDC isolation, short circuit, and
undervoltage lockout protection. The SMS is available with
remote shutdown, as well as an optional active current
share, to allow for high power distributed operation.
Available in 24 or 48 VDC input versions, the SMS is well
suited to telecom and networking applications.
• Industry Standard
Package
• Industry Standard Pinout
• 85°C Case Operation
• Short Circuit Protection
• 6-Sided Shielding
• 24V and 48V Input
Versions
• Input Pi Filter
• Regulated Outputs
• 1500V Isolation
Input
Output
Turn-On Time 10 ms
Remote Shutdown Positive Logic
Switching Frequency 400 kHz
Isolation
Input - Output 1500 VDC
Temperature Coefficient ±0.03%/°C
Operating Temperature
Ambient Operating Range 100 LFM -40 To +85°C
Ambient Operating Range Convection -40 To +70°C
Storage Range -40 To +100°C
Humidity Max., Non-Condensing 95%
Vibration, 3 Axes, 5 Min Each 5 g, 10 - 55 Hz
MTBF†(Bellcore TR-NWT-000332) Consult Factory
Safety Consult Factory
Weight (approx.) 0.4 oz
General
DESCRIPTION
FEATURES
Efficiency vs. Load (48V Input)
Efficiency vs. Load (24V Input)
SMS SERIES
12 WATT
Notes
†
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load, unless
otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model.
Please consult factory for specific model information.Units are
water-washable and fully compatible with commercial spray or
immersion post wave-solder washing equipment.