A Type J plug in North Korea?

Not directly — pack an adapter.

your Type J
🇰🇵 Type C socket
🇰🇵 Type F socket
🇰🇵 Type A socket

North Korea's Type C / Type F / Type A sockets don't take a Type J plug. A plug adapter solves the shape problem — it changes pins, not electricity. The wall delivers 220/110 V at 50/60 Hz (198–242 or 99–121 V within tolerance) — if your device isn't rated for that (look for "100–240 V" on the brick), an adapter won't save it.

Grid facts verified against IEC World Plugs — North Korea. Physical-fit verdicts derive from pin geometry and each socket standard's acceptance list — not safety advice.