HV250 vs NC48 features

Tech Note: TN0223
Product: HV250, NC48
Version: All
Date Added: 2006-10-11

Issue

TDT often recommends the NC48 due to its longer battery life. Investigators who use silicon probes, such as the NeuroNexus probes, find that the impedances of the probes drop in the range of 100 kOhms when the probes are activated for stimulation. As a result, a compliance voltage of ±24 Volts work fine in most cases.

Spec	HV250	NC48
Battery life	130 mAmp (27 hr continuous stimulation)	1000 mA (240 hr of continuous stimulation)
Rechargeable	No	Yes
Compliance Voltage	±135 V	±24 V
Max impedance for 100 uA stim	1 MOhm	200 kOhm
Usable in 1 mA mode	No	Yes

If you have an HV250 battery pack and think you might benefit from switching to the NC48, contact TDT for more information.