Replacement for ST1PS01HJR: Drop-In Alternatives We Stock
Looking for a replacement for the ST1PS01HJR (ST1PS01HJR - STMicroelectronics Switching Voltage Regulators 400 mA nano-quiescent synchronous step-down converter digital volt selection & P)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the ST1PS01HJR
| SKU | ST1PS01HJR |
|---|---|
| Product | ST1PS01HJR - STMicroelectronics Switching Voltage Regulators 400 mA nano-quiescent synchronous step-down converter digital volt selection & P |
| Stock status | In Stock |
| Detail page | View ST1PS01HJR › |
Drop-in replacements for ST1PS01HJR
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
Maxim MAX17644AATE+ Integrated Switching Voltage Regulators 4.5V to 36V, 2.7A, High-Efficiency, Synchronous Step-Down DC-DC Converter
SKU: MAX17644AATE
Price: $54.53
446383-001 - HP 400-Watts Switching Power Supply for ProLiant DL320 G5p
SKU: 446383-001
Price: $128.42
453545-B21 - HP 400-Watts Switching Power Supply with Power Factor Correction for Proliant DL320 G5
SKU: 453545-B21
Price: $128.42
460004-001 - HP 400-Watts Non Hot-Pluggable Switching Power Supply with Power Factor Correction for ProLiant DL320 G5p
SKU: 460004-001
Price: $128.42
J9581-61001 - HP 400-Watts 100-240V AC 12V DC Switching Power Supply for Network Switch
SKU: J9581-61001
Price: $170.53
J9581A - HP 400-Watts 100-240VAC 12 V DC Switching Power Supply for E3800 Switch Series
SKU: J9581A
Price: $170.53
HP J9581A#ABA 400-Watts 100-240VAC 12 V DC Switching Power Supply for E3800 Switch Series
SKU: J9581A-ABA
Price: $189.47
9PA4004302 - Sparkle Power 400-Watts 12V/EPS12V 1U ATX Switching Power Supply
SKU: 9PA4004302
Price: $294.22
6LL0479603GP - Sparkle Power 400-Watts 12V/EPS12V 1U ATX Switching Power Supply
SKU: 6LL0479603GP
Price: $294.22
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.