2N4857A Vishay, 2N4857A Datasheet

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2N4857A

Manufacturer Part Number
2N4857A
Description
Transistor
Manufacturer
Vishay
Datasheet

Specifications of 2N4857A

Breakdown Voltage Vbr
-40V
Gate-source Cutoff Voltage Vgs(off) Max
-6V
Continuous Drain Current Id
20mA
Gate-source Breakdown Voltage
-40V
Mounting Type
Through Hole
Zero Gate Voltage Drain Current Idss Min
20mA
Current Rating
50mA
Gate-source Cutoff Voltage
-6V
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
The 2N4856A/4857A/4858A all-purpose JFET analog
switches offer low on-resistance, low capacitance, good
isolation, and fast switching.
Document Number: 70243
S-04028—Rev. D, 04-Jun-01
D Low On-Resistance: 2N4856A
D Fast Switching—t
D High Off-Isolation—I
D Low Capacitance: 3 pF
D Low Insertion Loss
Number
2N4856A
2N4857A
2N4858A
<25 W
Part
V
–0.8 to –4
–4 to –10
–2 to –6
GS(off)
(V)
ON
: 4 ns
D(off)
: 5 pA
V
Min (V)
(BR)GSS
–40
–40
–40
D Low Error Voltage
D High-Speed Analog Circuit Performance
D Negligible “Off-Error,” Excellent Accuracy
D Good Frequency Response
D Eliminates Additional Buffering
I
DSS
N-Channel JFETs
(mA)
50
20
8
D
Min
S
1
2
TO-206AA
Top View
r
(TO-18)
DS(on)
(W)
25
40
60
Max
Hermetically-sealed TO-206AA (TO-18) packaging allows full
military processing (see Military Information). For similar
products in TO-226AA (TO-92) and SOT-23 packages, see the
J/SST111 series data sheet. For
2N5564/5565/5566 data sheet.
3
G and Case
I
D(off)
(pA)
5
5
5
Typ
2N4856A/4857A/4858A
t
ON
(ns)
4
4
4
Typ
D Analog Switches
D Choppers
D Sample-and-Hold
D Normally “On” Switches
D Current Limiters
Vishay Siliconix
similar duals, see the
www.vishay.com
7-1

Related parts for 2N4857A

2N4857A Summary of contents

Page 1

... Part V V GS(off) (BR)GSS Number (V) Min (V) 2N4856A –4 to –10 –40 2N4857A –2 to –6 –40 2N4858A –0.8 to –4 –40 D Low On-Resistance: 2N4856A < Fast Switching— High Off-Isolation— D(off) D Low Capacitance Low Insertion Loss The 2N4856A/4857A/4858A all-purpose JFET analog switches offer low on-resistance, low capacitance, good isolation, and fast switching ...

Page 2

... MHz kHz GSH 2 See Switching Circuit See Switching Circuit –55 to 200_C > 25_C C Limits 2N4856A 2N4857A 2N4858A a Min Max Min Max Min Max Unit –40 –40 –40 –4 –10 –2 –6 –0 100 8 –250 –250 –250 –500 –500 –500 250 250 250 ...

Page 3

... Document Number: 70243 S-04028—Rev. D, 04-Jun-01 _ 100 200 = 160 80 I DSS 120 –8 – – 105 125 – 2N4856A/4857A/4858A Vishay Siliconix On-Resistance vs. Drain Current T = 25_C –2 V GS(off) –4 V – – Drain Current (mA) D Turn-On Switching t approximately independent –10 V GS( d(on d(on ...

Page 4

... Vishay Siliconix Noise Voltage vs. Frequency 100 100 – Frequency (Hz) Gate Leakage Current 125_C 100 25_C 0 – Drain-Gate Voltage (V) DG Common-Gate Forward Admittance 100 25_C A – 0.1 100 200 f – Frequency (MHz) www.vishay.com 7-4 _ Forward Transconductance and Output Conductance 100 k 100 ...

Page 5

... Frequency (MHz) Output Characteristics –4 V GS(off 0.2 0.4 0.6 V – Drain-Source Voltage (V) DS 2N4856A 2N4857A V –10 V –6 V GS(L) 464 W 953 D(on) *Non-inductive Rise Time < Rise Time 0.4 ns Fall Time < Input Resistance 10 MW Pulse Width 100 ns Input Capacitance 1.5 pF PRF 1 MHz Document Number: 70243 S-04028— ...

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