Panasonic CF-AA6412AJS AC Adapter for Panasonic Let's note SV / FV
- Part Type:
- AC Adapter
- Laptop Family:
- Panasonic Let's note SV / FV
Quick facts
CF-AA6412AJS is a AC adapter that fits 2 laptop models: Panasonic Let's note CF-SV1E, Panasonic Let's note CF-FV4.
| Part number | CF-AA6412AJS |
|---|---|
| Part type | AC Adapter |
| Fitment confidence | OEM confirmed |
| Last checked | 2026-10-06 |
Compatible models (2)
- Panasonic Let's note CF-SV1E
- Panasonic Let's note CF-FV4
Laptops compatible with CF-AA6412AJS
Fits 2 laptops: 2 OEM confirmed, 0 seller listed, 0 reported by users.
- Panasonic Let's note CF-FV4OEM confirmedMatched on: part number CF-AA6412AJS
- Panasonic Let's note CF-SV1EOEM confirmedMatched on: part number CF-AA6412AJS
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Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Panasonic Last updated: 2026-10-06
Where to buy
- Amazon JapanGo to store
Panasonic CF-AA6412AJS AC Adapter for Panasonic Let's note SV / FV Review
Panasonic CF-AA6412AJS 16V 4.06A AC adapter for the Let's note CF-SV1E and CF-FV4.
CF-AA6412AJS is Panasonic's 16V 4.06A (about 65W) barrel adapter, about 0.22kg. The Let's note manual lists it for the CF-SV1E series, and the CF-FV4CDTCR spec page shows a 16V 4.06A adapter. That FV4 page does not name the part number, so the FV4 match rests on the matching rating. Most SV7 to SV2 and FV1, FV3 models ship with the 16V 5.3A CF-AA65D2AJS. Check the rating on your current adapter before you buy.
Fitment answer
OEM confirmed for the Let's note CF-SV1E series, per the Let's note manual. Output is DC 16V 4.06A, about 65W, and the unit weighs about 0.22kg.
FV4: Panasonic's CF-FV4CDTCR spec page shows a 16V 4.06A adapter but does not name the part number. That match is inferred from the rating.
Which laptops this fits
Let's note CF-SV1E series (manual), and CF-FV4 (rating match on the FV4CDTCR spec page).
Panasonic's option table lists this adapter for the FC, SC, QR, SR, FV and QV lines but not the SV, which is why we lean on the manual for the SV1E.
Connector and wattage checks
Rating: 16V 4.06A. Many SV and FV models ship with the 16V 5.3A CF-AA65D2AJS instead. Same voltage, more current. Using the 5.3A unit on a 4.06A machine is fine. Using this 4.06A unit on a 5.3A machine can leave it slow or unable to charge under load.
Which FV sub-models ship with 4.06A and which with 5.3A is not fully mapped. Read your current adapter's label.
Connector tip size is not published on the pages we read.
Genuine vs third party
CF-AA6412AJS is a genuine Panasonic adapter. Panasonic does not publish its plug size or whether it carries an ID signal, so a third party 16V unit's behaviour is unknown.
We recommend genuine Panasonic for Let's note. Third party 16V adapters are rarer than 19V and 20V ones, and the tip is the part we cannot confirm.
If this is not yours
Read the part number printed on the adapter you are replacing and the model code on your laptop's label. If neither appears on this page, this is not your part.
Own an SV7 to SV2, FV1 or FV3 with a 5.3A adapter? Look at CF-AA65D2AJS. Want USB-C for an FV? Look at CF-AAP102HJS. For everything else, browse our full laptop parts catalog at /laptop-parts.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Let's note CF-SV1E owners
- Let's note CF-FV4 owners whose original adapter reads 16V 4.06A
Not for
- Let's note models that shipped with a 16V 5.3A adapter
Specifications
| Part Type | AC Adapter |
|---|---|
| Brand | Panasonic |
| Part Number | CF-AA6412AJS |
| Compatible Models | Panasonic Let's note CF-SV1E, Panasonic Let's note CF-FV4 |
| Fitment Confidence | OEM confirmed |
| Description | AC adapter 16V 4.06A (about 65W) |
| Output | DC 16V, 4.06A |
| Mass | about 0.22kg |
| Market | Japan |
FAQs
Can I use the higher wattage CF-AA65D2AJS instead?
Yes. Both are 16V Panasonic adapters, and the 5.3A unit simply has more headroom. Panasonic's option table lists both for the FV line.
Why does my Let's note say plugged in, not charging?
If the machine shipped with a 5.3A adapter and you are using this 4.06A one, that is the likely cause under load. Check the rating printed on your original adapter.
Can I charge my FV4 over USB-C instead?
Yes. Panasonic lists the 100W USB-C PD adapter CF-AAP102HJS for the FV4, and the FV has USB-C with PD.