• No input-to-output isolation
• Low input-to-output differential voltage
• Very good dynamic properties
• Input undervoltage lockout
• Output voltage adjustment and inhibit function
• Continuously no-load and short-circuit proof

Article number	PSA123-2IRY
Available stock	10
Manufacturer	Bel Power
Type	DC/DC
Input Voltage	15 – 40VDC
Output voltage	12V
Output current	3A
Total power	36W
Op. temperature	-10 / +50°C
Size	70.2×50.2×25.2mm
Weight	100g
Efficiency	89%
Formfactor	THT mountable
Application	Railway
Specials	EN50155, EN50121

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