I sent Bitcoin to a Bitcoin Cash/Bitcoin SV address (or vice versa). Is it possible to retrieve my funds? Tokenview FAQ

If you sent Bitcoin Cash or Bitcoin SV to a Bitcoin Segwit-address (an address starting with a 3), it's not possible to recover the funds. Otherwise, the answer depends on who is the recipient of the transaction:

• You: your private keys (and passphrases) for Bitcoin wallets are valid for Bitcoin Cash and Bitcoin SV wallets and vice versa, so you just need to export and import your keys (passphrases). Please contact your wallet if you need help with this.
• An exchange (Bittrex, Huobi, Binance, etc.): in this case, you should contact the exchange support.
• Your friend or colleague: you could ask the recipient to install the second wallet and explain that he has to import his private key into that wallet. Please contact your wallet if you need help with this.