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PSA481 Datasheet Positive Switching Regulator

Manufacturer: Bel Fuse

Overview: 25 1.0" 50 2.0" 70 2.8" PSA/PSR Series Positive Switching Regulator The PSA/PSR Series of positive switching regulators are designed as power supplies for electronic systems when no input-to-output isolation is required. Their major advantages include a high level of efficiency, high reliability, low output ripple, and excellent dynamic response. Models with input voltages up to 144 V are especially designed for secondary-switched and battery-driven mobile applications. The regulators are suitable for railway applications according to EN 50155 and EN 50121. The case design allows for operation up to 71 °C. The PSA/PSR Series are designed for wall or chassis mounting with faston connections or with solder pins for insertion into a PCB. Various options are available to adapt the regulators to different applications.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number PSA481
Manufacturer Bel Fuse
File Size 1.97 MB
Description Positive Switching Regulator
Datasheet PSA481 PSA55 Datasheet (PDF)

General Description

........................................................................................1 Model Selection.................................................................................2 Functional Description.......................................................................3 Electrical Input Data..........................................................................4 Electrical Output Data................................................................

Key Features

  • RoHS lead-free-solder and lead-solder-exempted products are available.
  • 5 year warranty for RoHS compliant products with an extended temperature range.
  • Input voltage up to 144 VDC.
  • Single output of 5 to 48 VDC.
  • No input-to-output isolation.
  • High efficiency up to 95%.
  • Extremely wide input voltage range.
  • Low input-to-output differential voltage.
  • Very good dynamic properties.
  • Input undervoltage lockout.

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PSA481 Distributor