2N4861 JFETs Datasheet

2N4861 Datasheet, PDF, Equivalent


Part Number

2N4861

Description

N-Channel JFETs

Manufacture

Vishay

Total Page 5 Pages
Datasheet
Download 2N4861 Datasheet


2N4861
2N4856JAN/JANTX/JANTXV Series
Vishay Siliconix
N-Channel JFETs
2N4856JAN
2N4857JAN
2N4858JAN
2N4859JAN
2N4860JAN
2N4861JAN
2N4856JANTX
2N4857JANTX
2N4858JANTX
2N4859JANTX
2N4860JANTX
2N4861JANTX
2N4856JANTXV
2N4857JANTXV
2N4858JANTXV
2N4859JANTXV
2N4860JANTXV
2N4861JANTXV
PRODUCT SUMMARY
Part Number
2N4856
2N4857
2N4858
2N4859
2N4860
2N4861
VGS(off) (V)
–4 to –10
–2 to –6
–0.8 to –4
–4 to –10
–2 to –6
–0.8 to –4
V(BR)GSS Min (V)
–40
–40
–40
–30
–30
–30
rDS(on) Max (W)
25
40
60
25
40
60
ID(off) Max (pA)
250
250
250
250
250
250
tON Typ (ns)
9
10
20
9
10
20
FEATURES
D Low On-Resistance: 2N4856 <25 W
D Fast Switching—tON: 4 ns
D High Off-Isolation—ID(off): 5 pA
D Low Capacitance: 3 pF
D Low Insertion Loss
D N-Channel Majority Carrier FET
BENEFITS
D Low Error Voltage
D High-Speed Analog Circuit Performance
D Negligible “Off-Error,” Excellent Accuracy
D Good Frequency Response, Low Glitches
D Eliminates Additional Buffering
D High Radiation Tolerance
APPLICATIONS
D Analog Switches
D Choppers
D Sample-and-Hold
D Normally “On” Switches
D Current Limiters
DESCRIPTION
The 2N4856JAN/JANTX/JANTXV all-purpose JFET analog
switches offer low on-resistance, low capacitance, good
isolation, and fast switching.
TO-206AA
(TO-18)
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 data sheet.
S
1
Document Number: 70244
S-04028—Rev. C, 04-Jun-01
2
D
3
G and Case
Top View
www.vishay.com
7-1

2N4861
2N4856JAN/JANTX/JANTXV Series
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Gate-Drain, Gate-Source Voltage :
(2N4856-58) . . . . . . . . . . . . . . . . . . . . . . . 40 V
(2N4859-61) . . . . . . . . . . . . . . . . . . . . . . . 30 V
Gate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Lead Temperature (1/16from case for 10 seconds) . . . . . . . . . . . . . . 300 _C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 200_C
Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 200_C
Power Dissipationa . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800 mW
Notes
a. Derate 10.3 mW/_C to TC > 25_C
SPECIFICATIONS FOR 2N4856, 2N4857 AND 2N4858 (TA = 25_C UNLESS NOTED)
Limits
2N4856
2N4857
2N4858
Parameter
Symbol
Test Conditions
Typa Min Max Min Max Min Max Unit
Static
Gate-Source
Breakdown Voltage
Gate-Source Cutoff Voltage
Saturation Drain Currentb
Gate Reverse Current
Gate Operating Currentc
Drain Cutoff Current
Drain-Source On-Voltage
Drain-Source On-Resistancec
Gate-Source
Forward Voltagec
V(BR)GSS
VGS(off)
IDSS
IGSS
IG
ID(off)
VDS(on)
rDS(on)
VGS(F)
IG = 1 mA , VDS = 0 V
VDS = 15 V, ID = 0.5 nA
VDS = 15 V, VGS = 0 V
VGS = 20 V, VDS = 0 V
TA = 150_C
VDG = 15 V, ID = 10 mA
VDS = 15 V, VGS = 10 V
TA = 150_C
ID = 5 mA
VGS = 0 V
ID = 10 mA
ID = 20 mA
VGS = 0 V, ID = 1 mA
IG = 1 mA , VDS = 0 V
55 40 40 40
4 10 2
6 0.8 4
50 175 20 100
8
80
5
250
250
250
13
500
500
500
5
5 250 250 250
13 500 500 500
0.25
0.5
0.35
0.5
0.5 0.75
25 40 60
0.7
V
mA
pA
nA
pA
nA
V
W
V
Dynamic
Common-Source
Forward Transconductancec
gfs
VDG = 20 V, ID = 1 mA
6
Common-Source
Output Conductancec
gos
f = 1 kHz
25
mS
mS
Common-Source
Input Capacitance
Common-Source
Reverse Transfer Capacitance
Ciss
Crss
VDS = 0 V, VGS = 10 V
f = 1 MHz
7
3
18 18
88
18
pF
8
Equivalent Input
Noise Voltagec
en
VDG = 10 V, ID = 10 mA
f = 1 kHz
3
nV
Hz
Switching
Turn-On Time
Turn-Off Time
td(on)
2 6 6 10
tr
VDD = 10 V, VGS(H) = 0 V
See Switching Circuit
2
3
4
10 ns
tOFF
13 25 50 100
www.vishay.com
7-2
Document Number: 70244
S-04028Rev. C, 04-Jun-01


Features 2N4856JAN/JANTX/JANTXV Series Vishay Sil iconix N-Channel JFETs 2N4856JAN 2N485 7JAN 2N4858JAN 2N4859JAN 2N4860JAN 2N48 61JAN 2N4856JANTX 2N4857JANTX 2N4858JA NTX 2N4859JANTX 2N4860JANTX 2N4861JANTX 2N4856JANTXV 2N4857JANTXV 2N4858JANTX V 2N4859JANTXV 2N4860JANTXV 2N4861JANTX V PRODUCT SUMMARY Part Number 2N4856 2N4857 2N4858 2N4859 2N4860 2N4861 VGS (off) (V) –4 to –10 –2 to –6 0.8 to –4 –4 to –10 –2 to –6 –0.8 to –4 V(BR)GSS Min (V) –40 –40 –40 –30 –30 –30 rDS(on) Max (W) 25 40 60 25 40 60 ID(off) Max (pA) 250 250 250 250 250 250 tON Typ (ns) 9 10 20 9 10 20 FEATURES D Low On -Resistance: 2N4856 <25 W D Fast Switch ing—tON: 4 ns D High Off-Isolation— ID(off): 5 pA D Low Capacitance: 3 pF D Low Insertion Loss D N-Channel Majorit y Carrier FET BENEFITS D Low Error Vol tage D High-Speed Analog Circuit Perfor mance D Negligible “Off-Error,” Exc ellent Accuracy D Good Frequency Respon se, Low Glitches D Eliminates Additional Buffering D High Radia.
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