A proximal end of an implantable lead may include a unitary connector pin having a socket end, a conductor end, and a necked-down portion arranged therebetween, where the conductor end includes a crimp cavity with an inner surface and a proximal end of the conductor is arranged in the crimp cavity, and a pin sleeve sleevably engaging the proximal end of the conductor and crimping the proximal end of the conductor against the inner surface, the proximal end may also include a unitary ring connector having a band portion, a notch portion, and a crimp portion where the crimp portion includes a crimp cavity with an inner surface and a proximal end of the conductor is arranged in the crimp cavity, and a ring sleeve sleevably engaging the proximal end of the conductor and crimping the proximal end of the conductor against the inner surface creating a crimp connection.