Fairchild 2N5457, 2N5458, 2N5459, MMBF5457, MMBF5458 service manual
...
2N5457 / 5458 / 5459 / MMBF5457 / 5458 / 5459
2N5457
2N5458
2N5459
G
S
D
TO-92
MMBF5457
MMBF5458
MMBF5459
G
SOT-23
Mark: 6D / 61S / 6L
D
S
NOTE: Source & Drain
are interchangeable
N-Channel General Purpose Amplifier
This device is a low level audio amplifier and switching transistors,
and can be used for analog switching applications. Sourced from
Process 55.
Absolute Maximum Ratings* TA = 25°C unless otherwise noted
Symbol Parameter Value Units
V
DG
V
GS
I
GF
TJ, T
stg
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Drain-Gate Voltage 25 V
Gate-Source Voltage - 25 V
Forward Gate Current 10 mA
Operating and Stora ge Junction Temperature Range -55 to +150
°
C
NOTES:
1) These ratings are based on a maximum junction temperature of 150 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Thermal Characteristics TA = 25°C unless otherwise noted
Symbol Characteristic Max Units
2N5457-5459 *MMBF5457-5459
P
D
R
JC
θ
R
JA
θ
*Device mounted on FR-4 PCB 1.6" X 1.6" X 0.06."
1997 Fairchild Semiconductor Corporation
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Case 125
Thermal Resistance, Junction to Ambient 357 556
625
5.0
350
2.8
mW
mW/°C
C/W
°
C/W
°
µ
µ
µ
N-Channel General Purpose Amplifier
(continued)
Electrical Characteristics TA = 25°C unless otherwise noted
Symbol Parameter Test Conditions Min Typ Max Units
OFF CHARACTERISTICS
V
(BR)GSS
I
GSS
V
GS(off)
V
GS
Gate-Source Breakdown Voltage
Gate Reverse Current VGS = -15 V, VDS = 0
Gate-Source Cutoff Voltage
Gate-Source Voltage
ON CHARACTERISTICS
I
DSS
Zero-Gate Voltage Drain Current*
= 10 µA, VDS = 0
I
G
= -15 V, VDS = 0, TA = 100°C
V
GS
V
= 15 V, ID = 10 nA
DS
= 15 V, ID = 100 µA
V
DS
V
= 15 V, ID = 200 µA
DS
= 15 V, ID = 400 µA
V
DS
= 15 V, VGS = 0
V
DS
5457
5458
5459
5457
5458
5459
5457
5458
5459
- 25 V
- 1.0
- 200nAnA
- 0.5
- 1.0
- 2.0
1.0
2.0
4.0
- 2.5
- 3.5
- 4.5
3.0
6.0
9.0
- 6.0
- 7.0
- 8.0
5.0
9.0
16
V
V
V
V
V
V
mA
mA
mA
2N5457 / 5458 / 5459 / MMBF5457 / 5458 / 5459
SMALL SIGNAL CHARACTERISTICS
g
fs
g
os
C
iss
C
rss
NF Noise Figure VDS = 15 V, VGS = 0, f = 1.0 kHz,
Forward Transfer Conductance* VDS = 15 V, VGS = 0, f = 1.0 kHz
5457
5458
5459
Output Conductance* VDS = 15 V, VGS = 0, f = 1.0 kHz 10 50
Input Capacitance VDS = 15 V, VGS = 0, f = 1.0 MHz 4.5 7.0 pF
Reverse Transfer Capacitance VDS = 15 V, VGS = 0, f = 1.0 MHz 1.5 3.0 pF
= 1.0 megohm, BW = 1.0 Hz
R
G
*Pulse T est: Pulse Width ≤ 300 ms, Duty Cycle ≤ 2%
T ypical Characteristics
Transfer Characteristics
Transfer Characteristics
1000
1500
2000
5000
5500
µ
6000
3.0 dB
mhos
mhos
mhos
mhos
5
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