394 ◆ F IELD -E FFECT T RANSISTORS (FET S )

䊳 FIG URE 8 –1 4
JFET partial datasheet. Copyright
Fairchild Semiconductor
Corporation. Used by permission.
2N5457 MMBF5457
2N5458 MMBF5458
2N5459 MMBF5459

S
G TO-92
S
D SOT-23 D NOTE: Source & Drain
Mark: 6D / 61S / 6L 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 = 25C unless otherwise noted

Symbol Parameter Value Units

VDG Drain-Gate Voltage 25 V
VGS Gate-Source Voltage - 25 V
IGF Forward Gate Current 10 mA
TJ, Tstg Operating and Storage Junction Temperature Range -55 to +150 C

*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
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 = 25C unless otherwise noted

Symbol Characteristic Max Units

2N5457-5459 *MMBF5457-5459
PD Total Device Dissipation 625 350 mW
Derate above 25C 5.0 2.8 mW/ C
RθJC Thermal Resistance, Junction to Case 125 C/W
RθJA Thermal Resistance, Junction to Ambient 357 556 C/W

*Device mounted on FR-4 PCB 1.6" X 1.6" X 0.06."

Electrical Characteristics TA = 25C unless otherwise noted

Symbol Parameter Test Conditions Min Typ Max Units

OFF CHARACTERISTICS
V(BR)GSS Gate-Source Breakdown Voltage IG = 10 A, VDS = 0 - 25 V
IGSS Gate Reverse Current VGS = -15 V, VDS = 0 - 1.0 nA
VGS = -15 V, VDS = 0, TA = 100C - 200 nA
VGS(off) Gate-Source Cutoff Voltage VDS = 15 V, ID = 10 nA 5457 - 0.5 - 6.0 V
5458 - 1.0 - 7.0 V
5459 - 2.0 - 8.0 V
VGS Gate-Source Voltage VDS = 15 V, ID = 100 A 5457 - 2.5 V
VDS = 15 V, ID = 200 A 5458 - 3.5 V
VDS = 15 V, ID = 400 A 5459 - 4.5 V

ON CHARACTERISTICS
IDSS Zero-Gate Voltage Drain Current* VDS = 15 V, VGS = 0 5457 1.0 3.0 5.0 mA
5458 2.0 6.0 9.0 mA
5459 4.0 9.0 16 mA

SMALL SIGNAL CHARACTERISTICS

gfs Forward Transfer Conductance* VDS = 15 V, VGS = 0, f = 1.0 kHz
5457 1000 5000 mhos
5458 1500 5500 mhos
5459 2000 6000 mhos
gos Output Conductance* VDS = 15 V, VGS = 0, f = 1.0 kHz 10 50 mhos
Ciss Input Capacitance VDS = 15 V, VGS = 0, f = 1.0 MHz 4.5 7.0 pF
Crss Reverse Transfer Capacitance VDS = 15 V, VGS = 0, f = 1.0 MHz 1.5 3.0 pF
NF Noise Figure VDS = 15 V, VGS = 0, f = 1.0 kHz, 3.0 dB
RG = 1.0 megohm, BW = 1.0 Hz
*Pulse Test: Pulse Width ≤ 300 ms, Duty Cycle ≤ 2%