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ALD 35W Series


35 W Sixteenth-Brick Isolated DC-DC Converters

Get comprehensive protection against overvoltage, overcurrent, and overtemperature conditions with our ALD series of sixteenth-brick isolated DC-DC converters. The series is composed of seven single-output models offering fully regulated voltages of 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V, or 12.0 V. Suited for use with standard 48 V telecommunications equipment supplies, these 35 W DC-DC converters have a wide 2:1 input range of 36 to 75 VDC.

These converters employ an open-frame construction and use fixed-frequency switching to minimize the need for EMI filtering while operating at an ambient temperature of -40 to 85˚C. Providing up to 91% efficiency at full load, the converters have an installed height of just 0.34 inch–making them ideal for systems with demanding inter-board spacing requirements.

Standard features include output trim, remote enable, undervoltage lockout, and differential remote sense.


  • EU Directive 2002/95/EC Compliant for RoHS
  • Input Surge 100 V / 100 ms
  • Efficiency 90.5% @ 12 V (typ)
  • Input Voltage 36 - 75 VDC
  • Overvoltage Protection 125% Vo typ (autorestart)
  • Remote Sense Up to 10% of Vo
  • Transient Response 3%Vo (typ) deviation, 50% to 75% Load Change
  • Over Current Protection 115% Io typ (autorestart)
  • Over Temperature 115°C average PCB temperature (autorestart)
  • Noise/Ripple 40mVp-p typ
  • Load Regulation ±0.1%Vo typ
  • Line Regulation ±0.1%Vo typ
  • Isolation Voltage 1500 Vdc


  • Basic Insulation
  • Fixed frequency switching
  • High capacitive load limit on startup
  • High Density
  • High Efficiency
  • Regulation to zero load
  • Through Hole or Surface Mount Termination
  • Switching Frequency Fixed Frequency
  • Enable Logic Negative (N suffix) or Positive


Output Power (W): 35
Length (Inches): 1.3
Width (Inches): 0.9
Height (Inches): 0.35
Mounting Type: BMP; Through Hole
Minimum Output Current (A): 2.75
Maximum Output Current (A): 15
Output Voltage Range (V): 1.2V to 12V
All Specifications Collapse Specifications

Stock Check

Model Number
Min. Voltage (V) Max. Voltage (V) Current (A) Nominal Voltage (V) Number of Outputs Samples Buy
ALD03B48N-L Active, Contact Us 12 12 2.75 12 1 Contact Us Buy
ALD07A48N-L Active, In Stock 5 5 7 5 1 Request Buy
ALD10F48N-L Active, In Stock 3.3 3.3 10 3.3 1 Request Buy
ALD11G48N-L Active, Contact Us 2.5 2.5 11 2.5 1 Contact Us Buy
ALD13Y48N-L Active, Contact Us 1.8 1.8 13 1.8 1 Contact Us Buy
ALD15K48N-L Active, In Stock 1.2 1.2 15 1.2 1 Request Buy

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