Analytic Systems VTC315-48-12 Isolated DC to DC Voltage Converter

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Analytic Systems VTC315-48-12 Isolated DC to DC Voltage Converter

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Analytic Systems VTC315-48-12 Isolated DC to DC Voltage Converter

VTC315-24-24 VTC315 Isolated Series DC to DC Voltage Converter

The model VTC315 Voltage Converter supplies either 12V, 24V, or 48 VDC from a 24V or 48VDC power source. All new Current Mode switching design offers increased power and reliability in a compact package. Extra input and output filtering reduce EMI to extremely low levels. Reliability features include an input fuse, thermal shutdown, current limiting, reverse battery hookup protection and output short circuit shutdown with automatic recovery. The output voltage is easily adjusted 1.0 volts above or below the standard output voltage. Devices connected to the converter are protected by an output overvoltage crowbar circuit. Available options include a Remote Control and/or a Digital Volt Ammeter to monitor output current and voltage.


  • Ultra-Quiet
  • Power sensitive electronics without interference
  • Rugged & Reliable
  • Ensure years of safe and trouble free operation


  • Telecom Power Plants
  • Marine & other Rugged Environments
  • Electric Utilities and Substations
  • Base Station Power
  • Solar / Alternative Power Systems
  • Emergency Power Backup (UPS)
  • Military Applications (COTS)
  • Industrial Controls
  • Solar / Alternative Power Systems
  • Fuel Cells

Features of the Analytic Systems VTC315-48-12 Isolated DC to DC Voltage Converter:

  • Adjustable output voltage
  • Audible & visual indicators for constant current, low input voltage, low output voltage & over-temperature
  • Over-temperature shutdown
  • Short circuit protection
  • Output overvoltage crowbar
  • Cycle by cycle current limiting
  • Reverse input protection
  • Transient Voltage Suppression
  • Ultra-quiet low EMI operation
  • Dry contact output fail relay
  • Custom input / output voltages from 8 to 55 VDC
  • Remote control option
  • Digital Volt/Ammeter option
  • Wide-Temperature operation Available
  • Conformal Coating and/or Harsh Environment Ruggedization Available

Also Known As:
VTC315 48 12

Electrical (Input) VTC315

Input Volts (ip)
24 48 72
Actual (Vdc) 20 - 35 40 - 60 65 - 90
Input Amps (max) 22 9.6 6.5
Input Fuse (MDA) MDA25 MDA15 MDA10
Noise on Input < 25 mV

* 30 - 45 Vdc input range for a 24Vdc output


Electrical (Output)
Output Nominal (op) 12 24 48
Output Volts (DC) 13.6 ± 0.05 27.2 ± 0.05 54.4 ± 0.05
Output Amps 20 cont. / 22.5 peak 10 cont. / 12.5 peak 5.0 cont. / 6.0 peak
Output Crowbar 16.0 ± 0.5V 32.0 ± 1.0V 63.9 ± 2.0V
Output Adjustment ± 1.0
Switching Frequency 60 ± 2KHz
Idle Power < 10 Watts
Output Ripple & Noise < 25 mV
Transient Response < 2V for 50% Surge
Regulation (Line & Load) < +/-0.5%
Duty Cycle Peak 20% for 10 min maximum
Continuous 100% for 24 hours per day
Efficiency > 80% @ Maximum Output

Environmental Specification
Operating Temp.Range -20° to +40°C @ maximum output
Derate Linearly 2.5% per °C from 40°C
(Optional -40°C extra wide temp. operation avail.)
Humidity 0 - 95°C Relative Humidity
(non-condensing) with optional conformal coating
Audible Noise NONE Ødb @ 3 ft
Typical Service Life > 10 yrs. (87,600 hrs)
Isolation Input-Case & Input-Output 1500VDC (500V @ 24V I/P)
Output-Case 500VDC (1500VDC @ 48V O/P)

Mechanical Specification
Length 9.6 in / 24.4 cm
Width 8.2 in / 20.8 cm
Height 3.5 in / 6.4 cm
Clearance 1 inch (2.5 cm) all around
Material Marine Grade Aluminium
Finish Black Anodize / Powder Epoxy Coat
Fastenings All 18-8 Stainless Steel
Weight 7.5 lb / 3.4 kg
Connections Four contact output terminals
Warranty 3 years
Safety Approval to cETLus standards
ABS 11-HS794404B-PDA


Note: Specifications and pricing of the Analytic Systems VTC315-48-12 Isolated DC to DC Voltage Converter subject to change without notice. Illustrations and descriptions of the Analytic Systems VTC315-48-12 do not claim to be complete or exhaustive.
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Analytic Systems
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