I believe the concern is the maximum current, which can vary with the servo type. Even the smallest servos, however, can draw well over 100 mA when working against a resistance.
When you said earlier that the servo worked fine for about 10 minutes, what was it doing then? Was it moving someting or just sitting in a fixed position? When the problem started, had you tried to move somehting?
What specific servo do you have, as there are differences. Is it digital or analog, plastic or metal geared? What is maximum torque and manufacturer? The model number would help. John