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Polytron TWA3 Series DC-DC Converters, 3 Watt Single & Dual Output, 24 Pin DIP Package


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Daburn Part Number:


With no external components, our 3 watt single output model of DC-DC converter has short circuit protection, a 2:1 wide input range and new 3.3 Vdc outputs.  Dual output models are also available.

  • 3 Watt
  • Single and Dual Output
  • Regulated 24 Pin DIP Package
  • 2:1 Wide Input Range 
  • 500 Vdc Input/Output Isolation
  • Efficiency to 76% @ FL 
  • Short Circuit Protection
  • No External Components
  • New 3.3 Vdc Outputs 

Dimensions: 1.25” x 0.80” x 0.50”

TWA3 Series Specification Sheet PDF

 

      Input Current (mA)  
Daburn Part
Number
Input Voltage
(Vdc)
Output Voltage
(Vdc)
Output Current 
(mA)
No Load Full Load Case
Single Output
TWA3-5S33 5 3.3 600 14.1 649 B
TWA3-5S5 5 500 60 720 B
TWA3-5S12 12 250 170 930 B
TWA3-5S15 15 200 140 880 B
TWA3-12S33 12 3.3 600 15.9 266 B
TWA3-12S5 5 500 30 300 B
TWA3-12S12 12 250 30 340 B
TWA3-12S15 15 200 35 375 B
TWA3-24S33 24 3.3 600 10 126 B
TWA3-24S5 5 500 15 165 B
TWA3-24S12 12 250 15 165 B
TWA3-24S15 15 200 20 170 B
TWA3-48S33 48 3.3 600 3.2 61 B
TWA3-48S5 5 500 15 80 B
TWA3-48S12 12 250 15 85 B
TWA3-48S15 15 200 10 95 B
Dual Output
TWA3-5-5 5 ±5 ±250 140 810 B
TWA3-5-12 ±12 ±125 180 900 B
TWA3-S-15 ±15 ±100  180 1000 B
TWA3-12-5 12 ±5 ±250 100 300 B
TWA3-12-12 ±12 ±125 75 360 B
TWA3-12-15 ±15 ±100 60 350 B
TWA3-24-5 24 ±5 ±250 30 150 B
TWA3-24-12 ±12 ±125 30 180 B
TWA3-24-15 ±15 ±100 30 120 B
TWA3-48-5 48 ±5 ±250 20 80 B
TWA3-48-12 ±12 ±125 20 85 B
TWA3-48-15 ±15 ±100 20 90 B



Input and Output Specifications:

INPUT

Input Voltages:

  • 5 Vdc: 4.5 - 6.0 Vdc
  • 12 Vdc: 9 - 18 and 9 - 36 Vdc
  • 24 Vdc: 18 - 36 and 18 - 72 Vdc
  • 48 Vdc: 36 - 72 Vdc

OUTPUT

  • Voltage Accuracy: ±3% max.
  • Voltage Stability: 0.5% max.
  • Line Regulation: 1% max.
  • Load Regulation: 1% max.
  • Ripple Noise of 20MHz Bw: 0.5 - 1% p-p max.
  • Temperature Coefficient (at FL): 0.02% °C max.
  • Short Circuit Protection: Continuous
  • Stability: 0.5% max.


More Specifications:


GENERAL

  • Efficiency: 76% max. at FL
  • Isolation Voltage: 500 Vdc min.
  • Isolation Resistance: 1000 MOhms
  • Switching Frequency: 25 KHz min.

ENVIRONMENTAL

  • Operating Temperature Range: -25 to 71°C
  • Storage Temperature Range: -55 to 105°C
  • Derating: None
  • Cooling: Free Air Convection
  • Humidity: 25 - 95% RH Non-Condensing

PHYSICAL

  • Case Material: Non-Conductive Black Plastic
  • Weight: 0.5 oz. (14.3 g)
  • Dimensions: 1.25” x 0.80” x 0.50”

 

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