1.3 Applications
Preamplifiers for AM tuners in car radios.
1.4 Quick reference data
1. Product profile
1.1 General description
N-channel symmetrical junction field effect transistors in a SOT23 package.
Features
- 1.2 Features and benefits
Specifications
BF861A; BF861B; BF861C
N-channel junction FETs
Rev. 5 — 15 September 2011Product data sheet
SOT23
CAUTION
The device is supplied in an antistatic package. The gate-source input must be protected against
static discharge during transport or handling.
MSC895
High transfer admittanceLow input capacitance
Low feedback capacitanceLow noise.
Table 1.Quick reference data
SymbolParameterConditionsMinTypMaxUnit
V
DS
drain-source voltage
(DC)
--25V
I
DSS
drain current
BF861AV
GS
=0V; V
DS
=8V2-6.5mA
BF861BV
GS
=0V; V
DS
=8V6-15mA
BF861CV
GS
=0V; V
DS
=8V12-25mA
P
tot
total power dissipation up to T
amb
=25C--250mW
y
fs
forward transfer
admittance;
BF861AV
GS
=0V; V
DS
=8V12-20mS
BF861BV
GS
=0V; V
DS
=8V16-25mS
BF861CV
GS
=0V; V
DS
=8V20-30mS
C
iss
input capacitancef = 1 MHz--10pF
C
rss
reverse transfer
capacitance
f=1MHz--2.7pF