DDR3 and DDR3L end-of-life: how to source K4B4G0846E and MT41K parts
- DDR3 and DDR3L have largely reached end-of-life at the major manufacturers, so supply comes from remaining stock and the secondary market.
- Samsung K4B4G0846E is a 4Gb DDR3 SDRAM organised x8; Micron MT41K64M16 is a 1Gb DDR3L SDRAM organised x16.
- DDR3 and DDR3L are not interchangeable in every design: check supply voltage and board support.
- Match the full suffix, then verify date codes and test evidence.
Is DDR3 still available?
New DDR3 and DDR3L parts are scarce. The major manufacturers have moved capacity to newer generations and DDR3 is described by market trackers as quietly reaching end-of-life. Demand has not gone away: routers, set-top boxes, printers, medical and industrial equipment and many repair programmes still use it. Buyers therefore rely on remaining distributor stock and on tested refurbished parts.
What do these DDR3 part numbers mean?
- Samsung K4B4G0846E: K4 = Samsung DRAM, B = DDR3 SDRAM, 4G = 4Gb density, 08 = x8 data width, E = die revision. The suffix (for example -BCNB) describes package, temperature and speed options; confirm it against the manufacturer datasheet.
- Micron MT41K64M16: MT41K = DDR3L (1.35V) SDRAM, 64M16 = 64 Meg x 16 = 1Gb. The suffix such as -107 refers to the speed grade (DDR3-1866).
DDR3 vs DDR3L: can you swap them?
DDR3L runs at 1.35V and is often backward compatible with 1.5V DDR3 controllers, but the reverse is not safe in every design. Check your datasheet and board power rails before substituting, and keep the exact original suffix wherever possible.
Checklist for refurbished DDR3
- Full part number including suffix, written on the quote.
- Date code range and lot identifier.
- Electrical test and functional test results.
- Packaging: ESD-safe and moisture-appropriate, labelled by lot.
- Return and exchange terms.
Ask AURCAL about DDR3
If you need K4B4G0846E, MT41K64M16 or similar DDR3 and DDR3L parts, send the full part numbers and quantity. We will tell you if we can supply a refurbished and tested lot.
Frequently asked questions
Is Samsung K4B4G0846E DDR3 or DDR4?
The K4B prefix identifies Samsung DDR3 SDRAM. This part is a 4Gb x8 device.
What is the difference between DDR3 and DDR3L?
DDR3L is the low-voltage version, 1.35V instead of 1.5V. Compatibility depends on your controller and board.
Why is DDR3 hard to find?
Manufacturers have ended or are ending production while installed equipment still needs it.
Sources
Market figures are quoted from the sources above and change quickly. They are not an AURCAL price list.
Sources and further reading
External pages written by the standards bodies and manufacturers named here. AURCAL is not affiliated with them. Links last checked 1 November 2026.
- JEDEC: DDR, DDR2 and DDR3 SDRAM standards (JESD79 family) – Official listing of the standards that define these memory generations.
- JEDEC Solid State Technology Association – The standards body for microelectronics, including DRAM and flash memory.