Power Supplies
3
Contact Technical Services at (800) 377-4384 with any questions.
Visit our website at www.solahd.com.
142
SCD Series, Encapsulated, Industrial DC to DC Converter
These compact, rugged DC to DC converters are power
supplies designed to power industrial control instrumentation
devices and equipment where AC power is not convenient
or accessible. With high reliability and wide input range,
these units can operate through the most difcult factory
oor conditions around the globe. “User friendly” applies to
these unique power supplies that feature easy-to-install DIN
Rail and chassis mounting. Terminations are also easy to
access and simple to wire. Encapsulated design meets IP20
specications for use in harsh environments.
Applications
These units regulate voltage for sensitive electronic
equipment run from battery power. For example, a 24 Vdc
battery system where the battery voltage can be 30 volts,
sometimes higher during charging, and dip below 22 volts
under heavy load. The SCD can be used to stabilize the
voltage for those devices not designed to handle wider
voltage swings.
They are also a convenient and inexpensive alternative to
running AC power through a large industrial machine. The
SCD can use 24 Vdc commonly available on many parts
of the machine to create other voltages needed to run
sensors, transducers and other devices that the machine
requires to work properly.
• Industrial
- Encoders, special sensors, communications
and instrumentation
• Telecommunications systems
• Remote Site/Harsh Environment
Features
• DIN Rail or Chassis mount by removing DIN clips
• Rugged, encapsulated design to resist environment
• IP20 protection
• Wide 20 to 72 Vdc input range
• M3 screw clamp terminations
• Simple snap-on for DIN Rail TS35/7.5 or TS35/15
• Galvanic isolation
• Five year limited warranty
Options and Accessories
• SCP-MDC – Pair of metal DIN clips
• SCP-PDC – 1 plastic DIN clip with lever for
removal from rail
Certifications and Compliances
• Listed, Ind. Control Equip., E61379
- UL 508/CSA C22.2 No. 107.1
•
UL 60950
E137632
CUL/CSA-C22.2
No. 234-M90
Recognized Component, ITE, E137632
- UL 60950/CSA C22.2 No. 234-M90
• -IEC/EN60950-1
• IP20
E61379 E137632
Power Supplies 3
Contact Technical Services at (800) 377-4384 with any questions.
Visit our website at www.solahd.com.
143
SCD Series, Encapsulated, Industrial DC to DC Converter
Selection Table
Low Profile
Catalog
Number
Description
Output Voltages Min
Load
V1 A
V1 V2
Vdc A Vdc A
30 Watts; Switching DC Power Supply
SCD 30S5-DN 5 V 5 5 - - 0
SCD 30S12-DN 12 V 12 2.5 - - 0
SCD 30S15-DN 15 V 15 2 - - 0
SCD 30S24-DN 24 V 24 1.3 - - 0
SCD 30S48-DN 48 V 48 0.6 - - 0
SCD 30D15-DN Dual O/P+15 V 15 0.8 -15 0.8 0.15
Dimensions - in (mm)
4.16 (106.0)
4.51 (115.0)
2.26 (57.5)
1.29 (33.0)
D= .16 (4.2)
(4.5)
2.08 (53.0)
(6.0)
2.55 (65.0)
4.71 (120.0)
.24
.18
Pin-Out
SCD 30 1 2 3 6 7
Single +V1 -V1 +IN -IN
Dual V1 COM V2 +IN -IN
Specifications
Parameter Condition Value
Input
Input Voltage 20 - 72 Vdc
Filtering EMI/RFI EN 55011/B, 55022/B
Switching Frequency Typ. 100 kHz
Output
Output Voltage
Accuracy
Vin = 48V,
Iout = max, 25°C V1 ≤ ±1%, V2 ≤ ±4%
Ripple Vin= min,
Iout=max, 25°C ≤1%, Vout
Noise Vin= min,
Iout= max, 25°C ≤2%, Vout
Line Regulation Vin=min/max 25°C
Iout = max, 25°C ≤+0.5%, Vout
Load Regulation Iout = 10 to 90 to 10%,
25°C, Vin = 48 V, 25°C ≤+0.5%, Vout
Overcurrent Protection 105 to 130% Inom
Load Regulation Timing 10 to 90 to 10%, 25°C <4 ms
Temperature Coefficient TA = -25 to +65°C 0.01%/K
Overload/Short Circuit Continuous
Derating Single/Dual/
Triple TA >50°C 5%/K max
General
Holdup Time Vin = 48 V >10 ms
Operating Temperature -25 to +65°C
Storage Temperature TA = 25°C 45 to +85°C
Case Temperature Rise at
Full Load 45 K max
MTBF at 25°C
(input/output) acc. MIL-STD-217F 800,000 hrs
Transient Protection EN61000-4-2, 3, 4, 5
Cooling Convection
Weight - lbs (kg) 0.8 lbs (.39 kg)
Case Material/Potting UL94-VO
Protection IP20
Note: No input protection against reverse voltage.