The ASA01BB12-M from Artesyn Embedded Power is an isolated DC-DC converter module with 2 outputs (12 V, -12 V) rated 250 mA each and a 9 V to 18 V input.
The ASA01BB48-M from Artesyn Embedded Power is an isolated DC-DC converter module with 2 outputs at 12 V and -12 V, 250 mA each, accepting 36 to 75 V input.
The ASA01BB24-M from Artesyn Embedded Power is a 5 W isolated DC-DC converter module with 2 outputs (12 V and -12 V) rated 250 mA each, accepting an 18 V to 36 V input.