Replacement for 300-1103-03: Drop-In Alternatives We Stock
Looking for a replacement for the 300-1103-03 (300-1103-03 - Sun 650-Watts AC Power Supply for SparcCenter 1000)? 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 300-1103-03
| SKU | 300-1103-03 |
|---|---|
| Product | 300-1103-03 - Sun 650-Watts AC Power Supply for SparcCenter 1000 |
| Current price | $683.88 |
| Stock status | In Stock |
| Detail page | View 300-1103-03 › |
Drop-in replacements for 300-1103-03
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.
300-1945-03 - Sun 500-Watts Redundant AC-Input Single Power Supply for Sun Fire V215/V245/V445/T1000/T2000 & NETRA T2000
SKU: 300-1945-03
Price: $182.37
482513-003 - HP 650-Watts 100-240V 80 Plus Bronze Power Supply with Power Factor Correction for Z600 WorkStation
SKU: 482513-003
Price: $205.26
300-2030 - Sun 750-Watts AC Power Supply for SPARC Enterprise T5220 Server
SKU: 300-2030
Price: $110.53
300-1340-03 - Sun 360-Watts AC Power Supply for StorEdge D1000 / A1000
SKU: 300-1340-03
Price: $113.68
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.