2N4857JAN

Features:

 Low On-Resistance: 2N4856 <25
Fast Switching-t_ON: 4 _ns
High Off-Isolation-ID_(off)^: 5 _pA
Low Capacitance:   3 _pF
Low Insertion Loss
N-Channel Majority Carrier FET


Application

 Analog Switches
Choppers
Sample-and-Hold
Normally "On" Switches
Current Limiters


Specifications

Gate-Drain, Gate-Source Voltage :
(2N4856-58) . . . . . . . . . . . . . . . . . . . . . . . 40 V
(2N4859-61) . . . . . . . . . . . . . . . . . . . . . . . 30 V
Gate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 mA
Lead Temperature (1/16^" from case for 10 seconds) . . . . . . . . . . . . .. .300
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .  . .65 to 200
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 200
Power Dissipationa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1800 mW

Notes
a. Derate 10.3 mW/to TC > 25

Description

The 2N4857JAN/JANTX/JANTXV all-purpose JFET analog switches offer low on-resistance, low capacitance, good isolation, and fast switching.
Hermetically-sealed TO-206AA (TO-18) packaging allows full military processing (see Military Information). For similar products in TO-226AA (TO-92) and TO-236 (SOT-23) packages, see the J/SST111 series data sheet. For similar duals, see the 2N5564/5565/5566/2N4857JAN data sheet.