2SK3720
No.8173-1/4
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Ordering number : ENN8173A
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
62005AD MS IM / 31005AD TS IM TA-3941
2SK3720
N-Channel Silicon MOSFET
FM Tuner, VHF-Band Amplifier
Applications
Features
Low noise.
High power gain.
Small reverse transfer capacitance.
Specifications
Absolute Maximum Ratings
at Ta=25
C
Parameter
Symbol
Conditions
Ratings
Unit
Drain-to-Source Voltage
VDS
15
V
Gate-to-Source Voltage
VGS
5
V
Drain Current
ID
30
mA
Allowable Power Dissipation
PD
200
mW
Channel Temperature
Tch
150
C
Storage Temperature
Tstg
--55 to +150
C
Electrical Characteristics
at Ta=25
C
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Drain-to-Source Voltage
VDSX
VGS=--4V, ID=100
A
15
V
Gate-to-Source Leakage Current
IGSS
VDS=0V, VGS=
5V
10
nA
Zero-Gate Voltage Drain Current
IDSS
VDS=10V, VGS=0V
6.0*
12*
mA
Cutoff Voltage
VGS(off)
VDS=10V, ID=100
A
--2.2
V
Forward Transfer Admittance
yfs
VDS=10V, VGS=0V, f=1kHz
11
16
mS
Input Capacitance
Ciss
VDS=10V, VGS=0V, f=1MHz
2.4
pF
Reverse Transfer Capacitance
Crss
VDS=10V, VGS=0V, f=1MHz
0.035
pF
Power Gain
PG
VDS=10V, VGS=0V, f=100MHz
35
dB
See specified Test Circuit.
Noise Figure
NF
VDS=10V, VGS=0V, f=100MHz
2.0
dB
See specified Test Circuit.
Marking : KA
*
: The 2SK3720 is classified by IDSS as follows (unit : mA).
Rank
5
6
IDSS
6 to 10
8 to 12
2SK3720
No.8173-2/4
Package Dimensions
PG, NF Specified Test Circuit
unit : mm
7013-012
1
2
3
1.5
1.1
0.8
1.9
2.9
0.95
0.95
0.4
0.16
0 to 0.1
0.5
2.5
0.5
1 : Drain
2 : Gate
3 : Source
SANYO : CP
L1 : 1.0mm
copper wire 10mm
6T, tap : 2.5T from H side
L2 : 1.0mm
copper wire 10mm
7T, tap : 4T from H side
VG
VD
L2
L1
IN
to 20pF
to 30pF
to 20pF
to 30pF
OUT
ID -- VDS
ID -- VGS
y
fs
-- ID
Drain-to-Source Voltage, VDS -- V
Drain Current, I
D
-
-
mA
Gate-to-Source Voltage, VGS -- V
Drain Current, I
D
-
-
mA
Forward T
ransfer
Admittance,
y
fs
-
-
mS
Drain Current, ID -- mA
IT08679
5
3
2
1.0
2
7
5
7
10
Gate-to-Source Voltage, VGS
-- V
Forward T
ransfer
Admittance,
y
fs
-
-
mS
y
fs
-- VGS
10
5
7
3
3
2
2
IT08945
IT08946
I DSS
=10mA
8mA
IT08947
VDS=10V
VDS=10V
0.5
1.0
0
--
0.5
--
1.0
--
1.5
1.5
20
16
12
8
4
0
0
2
4
6
8
10
12
0
4
8
12
16
20
28
24
--1.5
--1.0
--0.5
0
0.5
1.0
1.5
0
4
8
12
16
20
28
24
I DSS
=10mA
8mA
VDS=10V
0.2V
0V
1.0V
0.8V
0.4V
--0.4V
--0.2V
VGS= --0.8V
2SK3720
No.8173-3/4
PD -- Ta
PG, NF -- ID
Drain Current, ID -- mA
V
oltage Gain, PG
-
-
dB
Noise Figure, NF
-
-
dB
Ambient Temperature, Ta --
C
Allowable Power Dissipation, P
D
-
-
mW
Ciss, Crss -- VDS
Drain-to-Source Voltage, VDS -- V
Input Capacitance, Ciss -
-
pF
Reverse transfer Capacitance, Crss -
-
pF
IT08683
1.0
5
7
10
7
2
2
3
3
5
0
2
4
20
24
28
32
36
40
PG
NF
VDS=10V
f=100MHz
20
0
40
60
80
100
120
140
160
0
40
80
120
160
240
200
IT08977
Cutof
f V
oltage, V
GS
(of
f)
--
V
IT08680
VGS(off) -- IDSS
Drain Current, IDSS -- mA
5
7
3
10
2
7
--
1.0
--
0.1
5
3
3
2
2
1.0
10
0.1
5
5
3
3
2
2
5
3
2
VDS=10V
IT08681
Drain-to-Source Voltage, VDS
-- V
VGS=0V
Forward T
ransfer
Admittance,
y
fs
-
-
mS
8
6
4
2
0
12
10
16
18
14
12
10
8
6
0
y
fs
-- VDS
IT08682
Drain Current, IDSS -- mA
VDS=10V
VGS=0V
Forward T
ransfer
Admittance,
y
fs
-
-
mS
5
2
7
3
10
16
18
14
12
8
10
20
y
fs
-- IDSS
Ciss
ITR00807
f=1MHz
VGS=0V
16
20
12
8
4
0
24
Crss
2SK3720
No.8173-4/4
PS
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of June, 2005. Specifications and information herein are subject
to change without notice.
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