PH300S280-48 Isolated DC-DC converter module from TDK-Lambda with 200-400V input, 48V 6.3A output (300W). Through-hole mounting, 3000VAC isolation.
Mfr Part #:

PH300S280-48

Available from 1 distributors
Mfr Name: TDK Corporation
TDK Corporation
Isolated DC-DC converter module from TDK-Lambda with 200-400V input, 48V 6.3A output (300W). Through-hole mounting, 3000VAC isolation.
Total Stock: 5 pcs

PH300S280-48 Available from 1 distributor

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5 pcs
5 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

PH300S280-48 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Control Features
Current
Features
Height
Length
Line Regulation
Load Regulation
Mounting Type
Number of Outputs
Operating Temperature
Over Voltage Protection
Overload Protection
Power (Watts)
Remote On/Off
Remote Sensing
Ripple & Noise
Storage Temperature
Temperature Coefficient
Thermal Protection
Type
Voltage
Voltage - Input (Max)
Voltage - Isolation
Voltage - Output
Width

PH300S280-48 Description

Short technical summary and product information.

The TDK-Lambda PH300S280-48 is an isolated DC-DC converter module from the PH-S series, delivering 300W of output power from a single 48V output at up to 6.3A. It accepts a wide input voltage range of 200-400V DC (280V nominal) and provides 3000VAC input-to-output isolation for reliable system isolation.

 

Key electrical features include line regulation of 0.4% or 20mV, load regulation of 0.8% or 40mV, and ripple and noise of 480mV pk-pk. The module includes comprehensive protection features: overvoltage protection (150-180%), overload protection (105-140% with automatic recovery), thermal protection (internal sensing, self-resetting), and remote on/off control (low=ON, open=OFF). Remote sensing is supported on the PH300S model.

 

The module is housed in a compact through-hole module package measuring 86.0mm x 41.0mm x 12.7mm. It operates over a baseplate temperature range of -20°C to +85°C (with extended range up to 100°C for PH300 models) and offers a storage temperature range of -40°C to +85°C. The temperature coefficient is 0.02%/°C. Designed for ITE (commercial) applications, it is suitable for distributed power architectures and industrial/telecom equipment.

PH300S280-48 Quick Information

Product Type: Isolated DC-DC Converter
Series: PH-S
Canonical Name: TDK-Lambda PH300S280-48 Isolated DC-DC Converter
Subcategory: Isolated Module

PH300S280-48 Compliance

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

PH300S280-48 Features

  • Isolated DC-DC converter with 3000VAC isolation.
  • Wide input range 200-400V DC.
  • Single 48V output at 6.3A (300W).
  • Through-hole mounting in a compact module package.
  • Includes remote on/off and overvoltage protection.

PH300S280-48 Applications

  • Designed for ITE (commercial) applications.
  • Suitable for distributed power architectures.
  • Ideal for industrial and telecom equipment.
  • Used in systems requiring high-density isolated power.

PH300S280-48 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the PH300S280-48?

The input voltage range is 200-400V DC (280V nominal).

What are the output voltage and current ratings?

Output voltage is 48V DC with a maximum output current of 6.3A, providing 300W of power.

What is the operating temperature range?

The module operates over a baseplate temperature range of -20°C to +85°C.

What is the isolation voltage?

Input-to-output isolation is rated at 3000VAC.

Is the module RoHS compliant?

The module is marked as RoHS3 compliant, but this is unverified and should be confirmed with the manufacturer.

What package type does the PH300S280-48 use?

It uses a through-hole module package with dimensions 86.0mm x 41.0mm x 12.7mm.

Does the PH300S280-48 support remote on/off?

Yes, it features remote on/off control with active low logic (low = ON, open = OFF).

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