Phison PSS5A324-X28 Replacement - Loongtion Pin-to-Pin Compatible
Pin-to-Pin Compatible Replacement for Phison PSS5A324-X28 — parameter alignment for BOM review, why evaluate Loongtion, FAQs, and datasheet and quote paths. Qualify on your board before swap.
PSS5A324-X28
Also listed as
PSS5A324
YIDN128SKT-S
Pin-to-Pin Compatible · Replacement
Summary
128 GB SATA BGA SSD (uSSD), FBGA156, TLC, −40°C to +85°C industrial — handbook replacement model for YIDN128SKT-S.
Parameter alignment
Key handbook fields side by side — confirm package, grade, and firmware against the datasheet for your build.
| Parameter | Loongtion | Phison |
|---|---|---|
| Capacity | 128 GB | 128 GB |
| Package | FBGA156 (16×20×1.7 mm) | BGA uSSD (verify) |
| Interface | SATA III 6 Gb/s | SATA III |
| Flash | TLC | TLC (verify) |
| Temperature | −40°C to +85°C | Industrial (verify) |
Why evaluate Loongtion for this PN
Cross-reference is not only for discontinued parts — many OEMs qualify a Loongtion path as a second source next to Phison, then use it for dual-sourcing, allocation relief, or future EOL coverage.
- Second source — not only an EOL story Use this mapping to dual-source alongside Phison. Qualify Loongtion once so allocation, long lead times, or a future EOL on PSS5A324-X28 does not stop your line.
- Pin-to-Pin Compatible path for BOM review This page documents the Loongtion PN, key parameter alignment, and compatibility type. Treat it as engineering guidance — confirm package, speed/firmware, and temperature on your host before production.
- Industrial temperature grades where listed Loongtion lists −40°C to +85°C for this line. Match the ordering PN to your environmental requirement (commercial, wide-temp, or Extreme-temp / GJB where offered).
- Endurance / grade options for write-heavy duty Where the product line offers pSLC or higher-endurance grades, evaluate them for logging, boot, and always-on industrial workloads — not every incumbent SKU ships the same endurance class.
- Direct engineering and small-batch pilots Request the datasheet with your incumbent PN, board, and temperature grade. Typical engineering reply is within one business day on China business days — useful for pilots before you lock an AVL dual-source.
Typical applications
Common equipment contexts where engineers search for this part family or a compatible alternative.
- Embedded uSSD / SATA BGA hosts
- Industrial SBC boot / data storage
FAQs for this cross-reference
Is PSS5A324-X28 a pin-to-pin replacement available from Loongtion?
Yes — this page documents a Pin-to-Pin Compatible path from Phison PSS5A324-X28 to Loongtion YIDN128SKT-S. Treat it as engineering guidance for BOM shortlisting; qualify package, speed bin, voltage, and temperature on your board before production swap.
Is this only for discontinued parts?
No. Many engineers use this as a current-generation second source alongside Phison — qualify once so you can switch or dual-source if lead times, pricing, or EOL risk change later.
Do I need to redesign the PCB or update BIOS/firmware?
For documented pin-to-pin mappings, the ball / pin map is intended to match the incumbent. Still verify speed grade, voltage (e.g. DDR3 vs DDR3L), timing, and any controller training or BIOS memory tables on your specific host before volume release.
What temperature grades can I order?
Loongtion lists −40°C to +85°C for this line. Confirm the exact ordering PN (industrial vs Extreme-temp / GJB where offered) against your environmental requirement and datasheet.
Can I request the datasheet?
Yes. Use Contact engineering on this page with the incumbent PN (PSS5A324-X28), target board, temperature grade, and quantity. We typically reply within one business day on China business days.
Related Loongtion products
Open a product page for specs, documents, and inquiry.
Related technical resources
Guides and notes that help qualify replacement, layout, and temperature choices.
Related cross-references
Other published mappings in the same product family.
| Vendor | Vendor PN | Loongtion PN |
|---|---|---|
| Phison |
Phison uSSD series
|
YIDN*SKT/SKS series
|
Source: 2026 product handbook §9 SATA BGA — replacement model column (128 GB).
All manufacturer names, logos, and part numbers (such as Micron, Samsung, SK hynix, Phison, Kontron, Silicon Motion, and others) used on this website are for cross-reference and identification purposes only. These trademarks remain the property of their respective owners. Loongtion is not an authorized distributor or affiliate of these manufacturers.
Need help qualifying this pin-to-pin replacement?
Share the incumbent PN, target board, and temperature grade — we respond within one business day on China business days (Mon–Fri, UTC+8; excl. public holidays).