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Home > Products > Power Supplies > SCD Series

SCD Encapsulated, Industrial DC to DC Converter Power Suppplies

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 difficult factory-floor 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 specifications for use in harsh environments.

scdsil.jpg (30695 bytes)

A printable version of the following sections is available by selecting the pdf file to the left.

Features Top
  • DIN Rail or Chassis Mount (by removing the DIN clip)
  • Rugged, encapsulated design to resist environment
  • IP20 protection
  • Wide 20 VDC to 72 VDC input range
  • Five year warranty
Packaging and Mounting Specifications Top
  • Simple snap-on for DIN Rail TS35/7.5 or TS35/15
  • M3 screw clamp terminations
  • Galvanic isolation
Options and Accessories Top
  • SCP-MDC – Pair of metal DIN clips
  • SCP-PDC – 1 plastic DIN clip with lever for removal from rail.
Standards Top
  • UL1950, C22.2 (CRU), UL508
  • CE and IP20
Applications Top

These easy-to-mount and install power supplies units can be used to regulate voltage for sensitive electronic equipment run from battery power. A good example would be a 24 VDC battery system. 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
Selection Table Top

Low Profile
Catalog
Number
Description Output Voltages

Min
Load
V1
A

V1 V2

VDC

A VDC A
 30 Watts; Switching DC Power Supply
 SCD30S5-DN 5 V 5 5.0 - - 0
 SCD30S12-DN 12 V 12 2.5 - - 0
 SCD30S15-DN 15 V 15 2.0 - - 0
 SCD30S24-DN 24 V 24 1.3 - - 0
 SCD30S48-DN 48 V 48 0.6 - - 0
 SCD30D15-DN Dual O/P±15 V 15 0.8 -15 0.8 0.15

 

Specifications Top

Parameter

Condition

Value

Input

 V:DC Input Voltage

x

 20 ...72 VDC

 Filtering EMI/RFI

xx

 EN 55011/B, 55022/B

 FSW: Switching
 Frequency

x

 Typ. 100 kHz

Output

 DVout: Output 
 Voltage Accuracy

 Vin = 48V, Iout = max, 25°C

 V1 £±1%, V2> £±4%
 DVNF: Ripple

 Vin = min, Iout = max, 25°C

 £±1%, Vout
 DVHF: 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

 Vin = 48 V, 25°C
 Iout = 10...90...10%, 25°C

 £±0.5%, Vout

 IMAX: Overcurrent
 Protection

x

 105...130%, Inom

 tR: Load 
 Regulation Timing

 10...90...10%, 25°C

 <4 ms
 Temperature 
 Coefficient
 TA = -25...+65°C  0.01%/K max
 Overload/
 Short Circuit

Continuous

 Derating  TA > 50oC  5%/K max

General

 tH: Holdup Time  Vin = 48 V  >10 ms
 TA" Operating Temperature

x

 -25...+65°C
 TS" Storage Temperature

 TA = 25°C

 -45...+85°C

 Case Temperature
 Rise at Full Load

x

 45 K max
 MTBF at 25oC
 (input/output)

 acc. MIL-HDBK-217F

 800,000 hrs
 Transient Protection x

 EN61000-4-2, 3, 4, 5

 Cooling

x

 Convection
 Weight

x

 390 g
 Case Material/Potting x  UL94-VO
 Product Level x

 Level 3

 Protection x  IP20

 

Dimensions Top

 

SCDDims.jpg (16381 bytes)

 *Unscrew DIN connector for chassis mounting.

Pin-Out

 SCD 30

1

2

3

6

7

 Single

+V1

-V1

x

+IN

-IN

 Dual

V1

COM

V2

+IN

-IN

 


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