BSS138K Fairchild Semiconductor, BSS138K Datasheet - Page 3

• Manufacturer Part Number: BSS138K
• Description: MOSFET N-CH 50V 220MA SOT-23-3
• Manufacturer: Fairchild Semiconductor

Specifications of BSS138K

• Fet Type: MOSFET N-Channel, Metal Oxide
• Fet Feature: Logic Level Gate
• Rds On (max) @ Id, Vgs: 1.6 Ohm @ 50mA, 5V
• Drain To Source Voltage (vdss): 50V
• Current - Continuous Drain (id) @ 25° C: 220mA
• Vgs(th) (max) @ Id: 1.2V @ 250µA
• Gate Charge (qg) @ Vgs: 2.4nC @ 10V
• Input Capacitance (ciss) @ Vds: 58pF @ 25V
• Power - Max: 350mW
• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Configuration: Single
• Transistor Polarity: N-Channel
• Resistance Drain-source Rds (on): 2.5 Ohms
• Forward Transconductance Gfs (max / Min): 200 mS
• Drain-source Breakdown Voltage: 50 V
• Continuous Drain Current: 0.22 A
• Power Dissipation: 350 mW
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Gate Charge Qg: 2.4 nC
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: BSS138KTR

© 2010 Fairchild Semiconductor Corporation
BSS138K Rev. A2
Typical Performance Characteristics
Figure 1. On-Region Characteristics
Figure 3. On-Resistance Variation with
Figure 5. Transfer Characteristics
3.0
2.5
2.0
1.5
1.0
0.5
2.0
1.5
1.0
0.5
0.0
2.5
2.0
1.5
1.0
0.5
2.0
-50
0
V
V
I
Temperature
D
DS
DS
= 500 mA
= 10V
= 10V
2.5
5V
2
3.0
0
V
V
T
DS
GS
J
. JUNCTION TEMPERATURE(
V
. DRAIN-SOURCE VOLTAGE (V)
. GATE-SOURCE VOLTAGE (V)
GS
3.5
= 10V
T
4
J
= -25(
4.0
50
o
C)
75(
6
o
4.5
C)
25(
4V
125(
o
100
5.0
C)
8
o
C) 150(
o
3V
C)
5.5
2V
o
C)
150
10
6.0
3
Figure 2. On-Resistance Variation with Gate
Figure 4. On-Resistance Variation with
Figure 6. Gate Threshold Variation with
1.5
1.0
0.5
0.0
2.00
1.75
1.50
1.25
1.00
0.75
-50
0.0
Voltage and Drain Current
V
Gate-Source Voltage
GS
Temperature
= 3V
I
D
= 0.25 mA
0.2
0
T
J
I
. JUNCTION TEMPERATURE(
4V
D
. DRAIN-SOURCE CURRENT(A)
0.4
I
4.5V
D
= 1 mA
50
7V
5V
0.6
8V
6V
100
0.8
o
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9V
V
C)
DS
= V
GS
10V
150
1.0