Pico UACHV300S 85–265VAC to 300VDC 250W PFC Power Supply

The Pico UACHV300S is a compact isolated AC-DC power module designed for applications requiring a 300VDC regulated output from a universal 85–265VAC input.

As part of Pico Electronics' UAC Series, it combines power factor correction, AC-DC conversion and isolation in one module, reducing the need for a separate front-end PFC stage and DC-DC converter.

Key Specifications

Pico lists the UACHV300S as a regulated, isolated switching power supply with integrated PFC.

Why Choose the UACHV300S?

Universal 85–265VAC Input

The wide AC input range allows one power module to support common mains voltages used in different regions.

This is useful for equipment that must operate from both:

• 115VAC systems

• 220–240VAC systems

The UAC Series also supports input frequencies from 47Hz to 440Hz, making it suitable for applications beyond standard commercial mains.

300VDC / 250W High-Voltage Output

The UACHV300S provides:

300VDC × 0.833A ≈ 250W

This makes it suitable where a relatively high DC bus voltage is required but designers want to avoid building a separate AC-DC front end.

Typical applications may include:

• industrial high-voltage electronics;

• aerospace and defense equipment;

• test and measurement systems;

• high-voltage control circuits;

• capacitor charging and DC bus applications.

Integrated Power Factor Correction

A major advantage of the UACHV300S is its integrated PFC stage.

Pico specifies the UAC Series with a power factor of up to 0.99 and states that the family is designed to meet EN/IEC 61000-3-2 harmonic requirements.

For system designers, this can simplify the power architecture compared with using:

AC input → separate PFC module → isolated DC-DC converter

The UACHV300S combines these functions into one module.

UACHV300S vs Other UAC High-Voltage Models

The UAC family includes several 250W high-voltage output options.

All are part of the same UAC high-voltage family, so engineers can select the output voltage according to the actual DC bus requirement rather than choosing the highest available model.

For other Pico power products, see our Pico Electronics product page.

What Should Engineers Check Before Selecting UACHV300S?

Before using the UACHV300S, confirm:

• whether 300VDC is the required nominal bus voltage;

• whether the load stays below 0.833A / 250W;

• whether conduction cooling is available;

• whether the 4.6 × 2.5 in full-brick footprint fits the PCB;

• whether the application requires the standard 0°C to +85°C baseplate range or an expanded-temperature option;

• whether the 500mVp-p ripple specification is acceptable for the load.

Pico also lists options for expanded operating temperature and MIL-STD-883 screening within the UAC Series.

Need Pico UACHV300S Pricing or Availability?

If you are sourcing Pico UACHV300S, send us your required quantity and delivery requirement.

Data Storage Technology can help check:

• UACHV300S availability;

• factory lead time;

• datasheet and technical specifications;

• compatible Pico UAC models;

• alternative output voltages within the UACHV Series.

FAQ

What is the output of Pico UACHV300S?
It provides a regulated 300VDC output with up to 250W maximum output power.

What input voltage does UACHV300S support?
It supports a universal 85–265VAC input range and 47–440Hz input frequency.

Does UACHV300S include PFC?
Yes. It is part of Pico's UAC Series and includes integrated power factor correction.

How much current can UACHV300S provide at 300V?
The rated maximum load current is approximately 0.833A.