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It's a bit of a shame that the long-term "wow" factor has been somewhat negated by the new tourist cards that expire after four weeks ("Welcome Suica" and "Passmo Passport"). It looks like you can get the regular cards everywhere again if you want now, but when I visited in early 2024, there was a months-long shortage of regular cards going on,* so the airports only had those temporary cards available, meaning a whole lot of people came and left only ever getting a temporary one. (I went out of my way to get "real" permanent cards from a couple of other regions, although I regret not collecting more of them at some places I passed through.)

* I have no idea how a shortage of hardware would make it better to give out temporary, expiring cards than permanent cards, since I assume they use the same technology (and the temporary ones would cause more churn, if anything). But that was the story at the time.

by clifdweller11 hours ago|

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The joys of single supplier most likely. Probably contracted to provide 1 mil a year or something then if tourism greater than that have the "disposable" ones... doesn't need to be any hardware difference though a simple time limited cards get activated with expiration date and server auto permanent inactivates them.

by numpad010 hours ago|

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Could be because of some payment regulation. IIUC prepaid payment method in Japan has to maintain a large sum of deposit to cover cost of refunds in case of insolvency situation. Balances on expired cards probably aren't used for that deposit calculation.

Also IIRC, relationship between Sony and JRE had soured few years ago and the fab in Japan that manufactured Suica cards was shut down. The contract went to Panasonic, but looks like Panasonic then sold off the smartcard unit to Nuvoton, and likely some security/nationalistic issues around that was the cause of the card supply issue.

There are really subtle cues to tell the model number(smartcards have model numbers!) and manufacturer of cards, most simply in tiny dent created by the cavity to hold the chip. Sony ones were circular and current cards are racetrack shaped.