N-Channel JFET
J109, MMBFJ108
Features
• This Device is Designed for Digital Switching Applications where
Very Low On Resistance is Mandatory
• Sourced from Process 58
• These are Pb−Free Devices
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MAXIMUM RATINGS (TA = 25°C unless otherwise specified) (Notes 1, 2)
Symbol
Parameter
Value
Unit
VDG
Drain−Gate Voltage
25
V
VGS
Gate−Source Voltage
−25
V
10
mA
−55 to 150
°C
IGF
TJ, TSTG
Forward Gate Current
Operating and Storage Junction
Temperature Range
1
TO−92 3 4.825x4.76
CASE 135AN
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. These ratings are based on a maximum junction temperature of 150°C.
2. These are steady−state limits. ON Semiconductor should be consulted on
applications involving pulsed or low−duty−cycle operations.
1
THERMAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
TO−92 3 4.83x4.76
LEADFORMED
CASE 135AR
Max
Symbol
PD
Parameter
J109
(Note 3)
MMBFJ108
(Note 4)
Unit
Total Device Dissipation
625
350
mW
Derate Above 25°C
5.0
2.8
mW/°C
RqJC
Thermal Resistance,
Junction−to−Case
125
−
°C/W
RqJA
Thermal Resistance,
Junction−to−Ambient
200
357
°C/W
3
1
2
SOT−23/SUPERSOTt−23,
3 LEAD, 1.4x2.9
CASE 527AG
3. PCB size: FR−4, 76 mm x 114 mm x 1.57 mm (3.0 inch x 4.5 inch x 0.062 inch)
with minimum land pattern size.
4. Device mounted on FR−4 PCB 36 mm x 18 mm x 1.5 mm; mounting pad for
the collector lead minimum 6 cm2.
1. Drain, 2. Source, 3. Gate
MARKING DIAGRAM
$Y&Z&3&K
J109
$Y&Z&3
J109
J109
J109−D26Z
J109, I8
$Y
&Y
&G
&Z
&3
&K
&Y
I8 &G
MMBFJ108
= Specific Device Code
= ON Semiconductor Logo
= Year Coding
= Weekly Date Code
= Assembly Plant Code
= Date Code Format
= Lot Run Traceability Code
ORDERING INFORMATION
See detailed ordering and shipping information on page 5 of
this data sheet.
© Semiconductor Components Industries, LLC, 2002
December, 2020 − Rev. 4
1
Publication Order Number:
J109/D
J109, MMBFJ108
ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise noted)
Symbol
Parameter
Test Condition
Min
Max
Unit
OFF CHARACTERISTICS
V(BR)GSS
IGSS
VGS(off)
Gate−Source Breakdown Voltage
IG = −10 mA, VDS = 0
−25
−
V
Gate Reverse Current
VGS = −15 V, VDS = 0
−
−3.0
nA
VGS = −15 V, VDS = 0, TA = 100°C
−
−200
MMBFJ108
−3.0
−10.0
J109
−2.0
−6.0
MMBFJ108
80
−
J109
40
−
MMBFJ108
−
8.0
J109
−
12
Gate−Source Cut−Off Voltage
VDS = 15 V, ID = 10 nA
V
ON CHARACTERISTICS
IDSS
rDS(on)
Zero−Gate Voltage Drain Current (Note 5)
VDS = 15 V, VGS = 0
Drain−Source On Resistance
VDS ≤ 0.1 V, VGS = 0
mA
W
SMALL SIGNAL CHARACTERISTICS
Cdg(on)
Csg(off)
Drain−Gate & Source−Gate On Capacitance
VDS = 0, VGS = 0, f = 1.0 MHz
−
85
pF
Cdg(off)
Drain−Gate Off Capacitance
VDS = 0, VGS = −10 V, f = 1.0 MHz
−
15
pF
Csg(off)
Source−Gate Off Capacitance
VDS = 0, VGS = −10 V, f = 1.0 MHz
−
15
pF
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
5. Pulse test: pulse width ≤ 300 ms, duty cycle ≤ 2%.
TYPICAL PERFORMANCE CHARACTERISTICS
300
VGS = 10 mV
Unit with Typical
VGS (off) = −7.8 V
TA = 25°C
VGS = 500 mV
VGS = 1.0 V
250
VGS = 1.5 V
ID, DRAIN CURRENT (mA)
VGS = 2.0 V
VGS = 2.5 V
200
VGS = 3.0 V
VGS = 3.5 V
VGS = 4.0 V
150
VGS = 4.5 V
100
VGS = 5.0 V
VGS = 5.5 V
50
VGS = 6.5 V
VGS = 6.0 V
VGS = 7.0 V
0
0
1
2
3
4
5
6
7
8
9
10
VDS, DRAIN SOURCE VOLTAGE (V)
Figure 1. Common Drain−Source, MMBFJ108
www.onsemi.com
2
11
12
13
14
15
J109, MMBFJ108
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
200
VGS = −0.01 V
−0.5 V
180
−1.0 V
ID, DRAIN CURRENT (mA)
160
−1.5 V
140
120
−2.0 V
100
80
−2.5 V
60
40
−3.5 V
Unit with Typical
VGS(off) = −4.8 V
TA = 25°C
20
0
0
2
4
6
8
10
12
14
16
VDS, DRAIN SOURCE VOLTAGE (V)
Figure 2. Common Drain−Source,MMBFJ108, J109
250
Unit with Typical
VGS(off) = −2.9 V
TA = 25°C
ID, DRAIN CURRENT (mA)
200
VGS = −0.1 V
150
−0.5 V
100
−1.0 V
50
−1.5 V
−2.0 V
0
0
1
2
3
4
5
6
7
8
9
10
VDS, DRAIN SOURCE VOLTAGE (V)
Figure 3. Common Drain−Source, J109
www.onsemi.com
3
11
12
13
14
15
J109, MMBFJ108
100
1000
VGS = 100 mV
ID = 100 mA
VGS(off) @ VDS = 15 V, ID = 10 nA
IDSS − DRAIN CURRENT (mA)
rDS − DRAIN “ON” RESISTANCE (W)
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
10
1
−1
VGS = 0 PULSED
VDS = 5 V
VGS(off) @ VDS = 15 V, ID = 10 nA
100
10
−1
−10
Figure 5. Drain Current vs.
Gate−Source Cut−Off Voltage
100
10
tON − TURN−ON TIME (ns)
VDG = 10 V
BW = 6.0 Hz @ f = 10 Hz, 100 Hz
= 0.21 @ f ≥ 1.0 kHz
10
5
ID = 1.0 mA
ID = 10 mA
1
0.01
0.03
ON
en − NOISE VOLTAGE (nV / √Hz)
Figure 4. Drain ON Resistance
50
0.1
0.5
1
2
10
8
6
ID = 30 mA
4
ID = 10 mA
2
0
100
TA = 25°C
VDD = 1.5 V
VGS = −12 V
0
f, FREQUENCY (Hz)
rDS− DRAIN “ON” RESISTANCE (W)
tOFF − TURN−OFF TIME (ns)
VGS(off) = −8.5 V
VGS(off) = −5.5 V
VGS(off) = −3.5 V
20
10
TA = 25°C
VDD = 1.5 V
VGS = −12 V
0
0
5
10
15
−4
−6
−8
−10
Figure 7. Switching Turn−On Time vs.
Gate−Source Cut−Off Voltage
50
30
−2
VGS(off), GATE CUTOFF VOLTAGE (V)
Figure 6. Noise Voltage vs. Frequency
40
−10
VGS(off), GATE CUTOFF VOLTAGE (V)
VGS(off), GATE CUTOFF VOLTAGE (V)
20
100
VGS = 0 V
10
25°C
−55°C
VGS(off) = −4.0 V
1
1
25
TA = 125°C
VGS(off) = −2.9 V
10
ID, DRAIN CURRENT (mA)
ID, DRAIN CURRENT (mA)
Figure 8. Switching Turn−On Time vs. Drain Current
Figure 9. On Resistance vs. Drain Current
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4
100
J109, MMBFJ108
1000
gfs, TRANSCONDUCTANCE (mmhos)
gos, TRANSCONDUCTANCE (mmhos)
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = 25°C
f = 1.0 kHz
VGS(off) = −4.0 V
100
10
1
0,1
1
10
100
TA = 25°C
f = 1.0 kHz
VGS = 10 V
VGS(off) = −3.0 V @ VDS = 15 V, ID = 10 nA
10
1
0,1
0,1
1
ID, DRAIN CURRENT (mA)
10
ID, DRAIN CURRENT (mA)
Figure 10. Output Conductance vs. Drain Current
Figure 11. Output Conductance vs. Drain Current
POWER DISSSIPATION, (mW)
700
600
TO−92
500
400
SUPERSOT−3
300
200
100
0
0
20
40
60
80
100
120
140
160
T, AMBIENT TEMPERATURE (°C)
Figure 12. Power Dissipation vs. Ambient Temperature
ORDERING INFORMATION
Top Mark
Package
Shipping†
J109
J109
TO−92 3L
(Pb−Free)
10000 Units / Bulk
J109−D26Z
J109
TO−92 3L
(Pb−Free)
2000 / Tape & Reel
MMBFJ108
I8
SSOT 3L
(Pb−Free)
3000 / Tape & Reel
Part Number
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
SUPERSOT is trademark of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
www.onsemi.com
5
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
TO−92 3 4.825x4.76
CASE 135AN
ISSUE O
DOCUMENT NUMBER:
DESCRIPTION:
98AON13880G
TO−92 3 4.825X4.76
DATE 31 JUL 2016
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2019
www.onsemi.com
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
TO−92 3 4.83x4.76 LEADFORMED
CASE 135AR
ISSUE O
DOCUMENT NUMBER:
DESCRIPTION:
98AON13879G
DATE 30 SEP 2016
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
TO−92 3 4.83X4.76 LEADFORMED
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2019
www.onsemi.com
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SOT−23/SUPERSOTt−23, 3 LEAD, 1.4x2.9
CASE 527AG
ISSUE A
GENERIC
MARKING DIAGRAM*
XXXMG
G
DOCUMENT NUMBER:
DESCRIPTION:
XXX = Specific Device Code
M
= Month Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
98AON34319E
DATE 09 DEC 2019
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “G”, may
or may not be present. Some products may
not follow the Generic Marking.
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
SOT−23/SUPERSOT−23, 3 LEAD, 1.4X2.9
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2019
www.onsemi.com
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
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Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
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