
	ON Semiconductor Electronic Components Datasheet

2N5638 Datasheet

JFET Chopper Transistors

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2N5638, 2N5639

2N5638 is a Preferred Device

JFET Chopper Transistors

N–Channel – Depletion

N–Channel Junction Field Effect Transistors, depletion mode (Type

A) designed for chopper and high–speed switching applications.

• Low Drain–Source “ON” Resistance:

RDS(on) = 30Ω for 2N5638

RDS(on) = 60Ω for 2N5639

• Low Reverse Transfer Capacitance

Crss = 4.0 pF (Max) @ f = 1.0 MHz

• Fast Switching Characteristics

tr = 5.0 ns (Max) (2N5638)

MAXIMUM RATINGS

Rating

Symbol

Drain–Source Voltage

Drain–Gate Voltage

Reverse Gate–Source Voltage

Forward Gate Current

Total Device Dissipation

@ TA = 25°C

Derate above 25°C

VDS

VDG

VGSR

IGF

Storage Temperature Range

Operating Junction Temp Range

Tstg

Value

Unit

Vdc

mAdc

310

2.82

–65 to +150

–65 to +135

mW/°C

°C

VDD

(RDS(on)

)

50)

VDD = 10 Vdc

0.1 mF

INPUT

(SCOPE A)

10%

90%

td(off)

td(on)

90%

10%

OUTPUT

(SCOPE B)

PULSE

GENERATOR

VGS(on)

+ – 50 OHM

0.001 mF SCOPE B

VGS(off)

1.0 k

50 Ohms

50 TO

50 OHM

SCOPE A

50 SCOPE

TEKTRONIX 567A

OR EQUIVALENT

Figure 1. Switching Times Test Circuit

http://onsemi.com

1 DRAIN

GATE

2 SOURCE

TO–92

CASE 29

1 STYLE 5

MARKING DIAGRAMS

5638

YWW

5639

YWW

Y = Year

WW = Work Week

ORDERING INFORMATION

Device

Package

Shipping

2N5638RLRA

TO–92 2000/Tape & Reel

2N5639

TO–92

5000/Box

2N5369RLRA

TO–92 2000/Tape & Reel

Preferred devices are recommended choices for future use

and best overall value.

September, 2001 – Rev. 3

Publication Order Number:

2N5638/D


	ON Semiconductor Electronic Components Datasheet

2N5638 Datasheet

JFET Chopper Transistors

No Preview Available !

2N5638, 2N5639

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)

Characteristic

Symbol Min Max

Unit

OFF CHARACTERISTICS

Gate–Source Breakdown Voltage

(IG = –1.0 µAdc, VDS = 0) V(BR)GSS

–

Vdc

Gate Reverse Current

(VGS = –15 Vdc, VDS = 0)

(VGS = –15 Vdc, VDS = 0, TA = 100°C)

IGSS

– ā1.0 nAdc

1.0 µAdc

Drain–Cutoff Current

(VDS = 15 Vdc, VGS = –12 Vdc)

(VDS = 15 Vdc, VGS = –12 Vdc, TA = 100°C)

(VDS = 15 Vdc, VGS = –8.0 Vdc)

(VDS = 15 Vdc, VGS = –8.0 Vdc, TA = 100°C)

2N5638

2N5639

ID(off)

– µAdc

1.0

ON CHARACTERISTICS

Zero–Gate–Voltage Drain Current (Note 1.)

(VDS = 20 Vdc, VGS = 0)

Drain–Source “ON” Voltage

(ID = 12 mAdc, VGS = 0)

(ID = 6.0 mAdc, VGS = 0)

Static Drain–Source “ON” Resistance

(ID = 1.0 mAdc, VGS = 0)

2N5638

IDSS

– mAdc

2N5639

25 –

VDS(on)

Vdc

2N5638

– 0.5

2N5639

– 0.5

2N5638

2N5639

RDS(on)

–

Ω

SMALL–SIGNAL CHARACTERISTICS

Static Drain–Source “ON” Resistance

(VGS = 0, ID = 0, f = 1.0 kHz)

2N5638

2N5639

RDS(on)

–

Ω

Input Capacitance

(VDS = 0, VGS = –12 Vdc, f = 1.0 MHz)

Ciss

– 10

Reverse Transfer Capacitance (VDS = 0, VGS = –12 Vdc, f = 1.0 MHz)

Crss

– 4.0

SWITCHING CHARACTERISTICS (VDD = 10 Vdc, VGS(on) = 0, VGS(off) = –10 Vdc, RG’ = 50 Ω. See Figure 1 on page 1)

Turn–On Delay Time

ID(on) = 12 mAdc, 2N5638

ID(on) = 6.0 mAdc, 2N5639

td(on)

– 4.0

– 6.0

Rise Time

ID(on) = 12 mAdc, 2N5638

ID(on) = 6.0 mAdc, 2N5639

– 5.0

– 8.0

Turn–Off Delay Time

Fall Time

ID(on) = 12 mAdc, 2N5638

ID(on) = 6.0 mAdc, 2N5639

ID(on) = 12 mAdc, 2N5638

ID(on) = 6.0 mAdc, 2N5639

td(off)

– 5.0

– 10

– 20

1. Pulse Width ≤ 300 µs, Duty Cycle ≤ 3.0%.

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2N5638 Datasheet

JFET Chopper Transistors

2N5638 Datasheet

JFET Chopper Transistors

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