Try to contact zeusbtc if they have available capacitors and resistors or try to check this link below

- https://www.zeusbtc.com/ASIC-Miner-Repair/Antminer-Parts/Capacitor/

Why don't you just check the model name of the capacitor? you can use it to search on Google to find where you can buy them. However, you can try ZeusBTC and I think they have parts that you need for s17 units.