Datasheet

UNISONIC TECHNOLOGIES CO., LTD
2SK545
Preliminary
JFET
IMPEDANCE CONVERTER
APPLICATIONS
3

DESCRIPTION
The UTC 2SK545 is an N-channel Junction field effect transistor.
It uses UTC’s advanced technology to provide customers low CISS
and low IGSS.
The UTC 2SK545 is suitable for infrared sensor and impedance
converter applications.

2
1
SOT-23
(JEDEC TO-236)
FEATURES
* Low Input Capacitance
* Low Gate-Source Leakage Current

ORDERING INFORMATION
Ordering Number
2SK545G-xx-AE3-R
Note: Pin Assignment: D: Drain
S: Source

Package
SOT-23
Pin Assignment
1
2
3
D
S
G
Packing
Tape Reel
G: Gate
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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2SK545

Preliminary
JFET
ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Drain-Source Voltage
VDSS
40
V
Gate-Drain Voltage
VGDS
-40
V
Gate Current
IG
10
mA
Drain Current
ID
1
mA
Power Dissipation
PD
125
mW
Junction Temperature
TJ
150
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS (TA =25°C, unless otherwise specified)
PARAMETER
Gate-to-Drain Breakdown Voltage
Gate-to-Source Leakage Current
Zero-Gate Voltage Drain Current
Cutoff Voltage
Forward Transfer Admittance
Input Capacitance
Reverse Transfer Capacitance

SYMBOL
V(BR)GDS
IGSS
IDSS
VGS(OFF)
|yfs|
CISS
CRSS
TEST CONDITIONS
ID=-10µA, VDS=0V
VGS=-20V, VDS=0V
VDS=10V, VGS=0V
VDS=10V, ID=1µA
VGS=0V, VDS=10V, f=1.0KHz
VGS=0V, VDS=10V, f=1.0MHz
MIN TYP MAX UNIT
-40
V
-500 pA
30
300 µA
-1.5 -4.0
V
0.05 0.13
mS
1.7
pF
0.7
pF
CLASSIFICATION OF IDSS
RANK
RANGE
B10
30~80
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
B11
60~180
B12
150~300
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2SK545
Preliminary
JFET
UTC 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 UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R206-102.b
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