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PH50S280-28 The PH50S280-28 is a 50W isolated DC-DC converter from TDK-Lambda with a 28V output at 1.8A. It features a wide 200-400V input range and through-hole mounting.
Mfr Part #:

PH50S280-28

Available from 1 distributors
Mfr Name: TDK Corporation
TDK Corporation
The PH50S280-28 is a 50W isolated DC-DC converter from TDK-Lambda with a 28V output at 1.8A. It features a wide 200-400V input range and through-hole mounting.
Total Stock: 56 pcs

PH50S280-28 Available from 1 distributor

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PH50S280-28 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Control Features
Cooling
Current
Features
Height
Isolation Resistance
Length
Line Regulation
Load Regulation
Mounting Type
Number of Outputs
Operating Temperature
Output Voltage Adjustment Range
Over Voltage Protection
Overload Protection
Power (Watts)
Remote On/Off
Ripple & Noise
Safety Agency Certifications
Storage Temperature
Temperature Coefficient
Thermal Protection
Type
Voltage
Voltage - Input (Max)
Voltage - Isolation (Minimum @ Input to Baseplate)
Voltage - Isolation (Minimum @ Input to Output)
Voltage - Output 1
Warranty
Width

PH50S280-28 Description

Short technical summary and product information.

The TDK-Lambda PH50S280-28 is an isolated DC-DC converter module from the PH-S series. It provides a single regulated output of 28V at up to 1.8A, delivering 50W of power. The converter accepts a wide input voltage range of 200V to 400V DC, making it suitable for high-voltage bus applications in industrial and commercial equipment.

 

Key electrical specifications include line regulation of 0.4% or 20mV and load regulation of 0.8% or 40mV. Ripple and noise are limited to 280mV pk-pk. The module includes protection features such as overcurrent (105-140% with auto recovery), overvoltage (125-145%), and overtemperature protection with internal sensing and self-resetting. Remote on/off control is provided (active low).

 

The converter is housed in a through-hole module package measuring 86.0mm x 41.0mm x 12.7mm. It is designed for conduction or forced air cooling. The operating baseplate temperature range is -20°C to +85°C. Safety certifications include UL60950-1, CSA60950-1, EN60950-1, and CE Mark. The product is RoHS3 compliant and has an MSL of 1 (unlimited).

PH50S280-28 Quick Information

Product Type: DC DC Converter
Series: PH-S
Canonical Name: TDK-Lambda PH50S280-28 Isolated DC-DC Converter, 28V Output, 50W
Subcategory: Board Mount Power Supplies

PH50S280-28 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PH50S280-28 Features

  • Isolated DC-DC converter with 50W output power.
  • Wide input voltage range of 200V to 400V DC.
  • Single 28V output at 1.8A current.
  • Includes remote on/off and comprehensive protection features.
  • Through-hole module package with conduction cooling.

PH50S280-28 Applications

  • Suitable for industrial and commercial ITE equipment.
  • Ideal for high-voltage DC bus applications.
  • Use in distributed power architectures requiring isolation.
  • Can be used in telecom and datacom systems with 200-400V input.

PH50S280-28 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the PH50S280-28?

200V to 400V DC.

What is the output voltage and current?

28V at 1.8A (50W).

What is the operating temperature range?

-20°C to +85°C baseplate temperature.

Is the PH50S280-28 RoHS compliant?

Yes, RoHS3 compliant.

What protection features does it have?

Overcurrent protection (105-140% auto recovery), overvoltage protection (125-145%), and overtemperature protection (self-resetting).

What is the isolation voltage?

3000VAC input to output, 2500VAC input to baseplate.

What package type is it?

Through-hole module.

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