PS-4241-9HA is a 240W desktop power supply unit (PSU) manufactured by
specifically for their Small Form Factor (SFF) desktop series. While a full component-level schematic is rarely released to the public, the technical specifications and identification details for this part are well-documented. Core Specifications Manufacturer HP (Hewlett Packard) Model Number : PS-4241-9HA Part Numbers : 503376-001, 508152-001 Form Factor : Custom SFF (Small Form Factor) Maximum Power Output : 240 Watts Efficiency
: 80 PLUS certified, with a typical efficiency of ~90.51% at 50% load Input Voltage : 100–240 Volts AC (50–60 Hz) Compatibility
This power supply is designed for use in several HP desktop models, including: HP Compaq 6000 Pro HP Compaq 6200 Pro HP Elite 8000, 8100, and 8200 SFF Service & Troubleshooting Replacement Guide
: Official HP support suggests replacing the entire unit rather than attempting internal repairs.
: If you need to verify its performance without a schematic, you can check the 12V rails (12V1, 12V2) for stable DC terminal voltage during load. Safety Warning
: High-voltage capacitors inside the PSU can hold a dangerous charge even after being unplugged. CLEAResult Where to Find the Unit ps42419ha schematic top
If you are looking for a replacement or a physical "top-view" layout, you can find listings and photos on:
: Lists used and tested units with detailed photos of the sticker and connectors. : Often carries SFF parts for older HP workstations.
: Contains official 80 PLUS efficiency reports which include some electrical performance graphs. replacement part HP Inc Ps42419ha 9244 | PDF | Power Supply - Scribd
PS-4241-9HA is a 240W Desktop Power Supply Unit (PSU) manufactured for HP (Hewlett Packard)
. It is commonly found in small form factor (SFF) desktop systems such as the HP Compaq Elite 8000, 8100, 8200 Pro 6000/6005
While a full proprietary board-level circuit schematic is not publicly released by HP, technical specifications and testing data are available from official certification reports: Technical Specifications Form Factor: Small Power / SFF Max Output Power: Efficiency: PS-4241-9HA is a 240W desktop power supply unit
80 PLUS certified with a typical efficiency of ~90.51% at 50% load. Input Voltage: 100–240V AC Input Frequency: 50–60 Hz CLEAResult Electrical Output Data (Reference) According to the 80 PLUS Verification Report , the unit provides the following DC terminal voltages: ~12.2V to 12.3V depending on load ~11.8V to 11.9V 12VSB (Standby): ~12.2V to 12.3V Resources for Troubleshooting
If you are looking for a schematic to perform repairs, you may find these alternatives useful: Verification Reports: Detailed efficiency and power waveform data can be found on 80 PLUS site Replacement Parts: The unit is identified by HP spare part numbers 503376-001 508152-001 Repair Discussions: Forums like
often host discussions on HP power supply troubleshooting when specific diagrams are unavailable. specific failure on this board? HP Inc Ps42419ha 9244 | PDF | Power Supply - Scribd
Once I have a better understanding of your requirements, I'll do my best to assist you in preparing a paper on the topic.
If you are looking for a technical document, here is some general information:
The PS42419HA is a power management IC (PMIC) designed for various applications. What is PS42419HA
Let’s walk through a real-world design: A 500W universal motor drive.
The heart of the schematic is six switching devices arranged in three legs:
Each switch is typically an IGBT (Insulated Gate Bipolar Transistor) with an antiparallel fast recovery diode (FRD). The emitter of the high-side IGBT and the collector of the low-side IGBT connect to form the output phase node (U, V, W). These outputs drive the motor windings or transformer primary.
Top schematic clues: Look for small "snubber" capacitors drawn across each IGBT—these are parasitic or optional external components that suppress voltage spikes during turn-off.
For each phase (U, V, W), connect a 22µF/25V capacitor between VBx and VSx. Also, add a 10Ω resistor in series with the bootstrap diode if the schematic shows one—this limits inrush current.
