BF494A datasheet, PDF - EEWORLD Datasheet

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BF494A: DescriptionRF SMALL SIGNAL TRANSISTOR; Categorysemiconductor Discrete semiconductor; File Size65KB，4 Pages; ManufacturerCDIL; Websitehttp://www.cdilsemi.com

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BF494A Overview

RF SMALL SIGNAL TRANSISTOR

BF494A Parametric

Parameter Name	Attribute value
state	ACTIVE
Transistor type	RF SMALL SIGNAL

BF494A Preview

Continental Device India Limited

An IS/ISO 9002 and IECQ Certified Manufacturer

IS/ISO 9002

Lic# QSC/L- 000019.2

NPN SILICON PLANAR EPITAXIAL RF TRANSISTORS

BF494

BF495

TO-92

Plastic Package

High Voltage Video Transistors

ABSOLUTE MAXIMUM RATINGS(Ta=25ºC unless specified otherwise)

DESCRIPTION

SYMBOL

Collector Emitter Voltage

Collector Base Voltage

Emitter Base Voltage

Collector Current (DC)

Collector Current(peak value)

Total Power dissipation up to

Tamb = 25ºC

Operating And Storage Junction

Temperature Range

THERMAL RESISTANCE

Junction to ambient

CEO

CBO

EBO

tot

, T

stg

Value

300

-55 to +150

UNITS

mW/ºC

ºC

th(j-a)

420

K/W

ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Otherwise Specified)

DESCRIPTION

SYMBOL TEST CONDITION

Min

CBO

=20V,I

Collector Cut- off Current

Collector Cut - off Current

EmitterCut off Current

Base Emitter Voltage

DC Current Gain

BF494

BF494A

BF494B

BF 495

BF 495C

BF 495D

CBO

EBO

BE(ON)

FE *

=20V,I

Ta =150 ºC

=4V, I

=10V,I

=1mA

=1mA,V

=10V

0.65

200

110

Max

500

4.0

500

0.74

221

500

215

125

135

UNITS

µA

Continental Device India Limited

Data Sheet

Page 1 of 4

NPN SILICON PLANAR EPITAXIAL RF TRANSISTORS

BF494

BF495

TO-92

Plastic Package

ELECTRICAL CHARACTERISTICS (Ta=25ºC Unless Specified Otherwise)

DESCRIPTION

SYMBOL TEST CONDITION

Min

DYNAMIC CHARACTERISTICS

Transition Frequency

Feedback Capacitance

Max

UNITS

=1mA, V

=10V

120

1.0

MHz

=10V, I

=1mA

f=4.5MHz

decreases by about 1.7mV/K with increasing temperature.

Continental Device India Limited

Data Sheet

Page 2 of 4

BF494

BF495

TO-92

Plastic Package

TO-92 Plastic Package

TO-92 Transistors on Tape and Ammo Pack

Dimension With 'L'

Uncontrolled

Ammo Pack Style

MECHANICAL DATA

(p)

Adhesive Tape on Top Side

FEE

Carrier

Strip

183

LABEL

FLAT SIDE

Solderability Ensured

331m

Beyond 'L'

A A

Flat Side of Transistor and

Adhesive Tape Visible

2000 pcs./Ammo Pack

All dimensions in mm unless specified otherwise

ITEM

BODY WIDTH

BODY HEIGHT

BODY THICKNESS

PITCH OF COMPONENT

FEED HOLE PITCH

FEED HOLE CENTRE TO

COMPONENT CENTRE

DISTANCE BETWEEN OUTER

LEADS

COMPONENT ALIGNMENT

TAPE WIDTH

HOLD-DOWN TAPE WIDTH

HOLE POSITION

HOLD-DOWN TAPE POSITION

LEAD WIRE CLINCH HEIGHT

COMPONENT HEIGHT

LENGTH OF SNIPPED LEADS

FEED HOLE DIAMETER

TOTAL TAPE THICKNESS

LEAD - TO - LEAD DISTANCEF1,

CLINCH HEIGHT

PULL - OUT FORCE

SYMBOL

(P)

SEC AA

DIM

MIN.

4.32

4.45

3.18

0.41

MAX.

5.33

5.20

4.19

0.55

3 2 1

PIN CONFIGURATION

1. BASE

2. EMITTER

3. COLLECTOR

0.35

0.50

5 DEG

1.14

1.40

1.14

1.53

12.70

1.982

—

2.082

REMARKS

MIN. NOM. MAX. TOL .

4.0

4.8

5.2

4.8

4.2

3.9

12.7

±1

12.7

±0.3 CUMULATIVE PITCH

ERROR 1.0 mm/20

PITCH

6.35

±0.4 TO BE MEASURED AT

BOTTOM OF CLINCH

+0.6

5.08

-0.2

AT TOP OF BODY

±0.5

±0.2

+0.7

-0.5

0.5

±0.2

±0.5

23.25

11.0

±0.2

1.2

t1 0.3 - 0.6

2.54

+0.4

-0.1

SPECIFICATION

All diminsions in mm.

NOTES

1. MAXIMUM ALIGNMENT DEVIATION BETWEEN LEADS NOT TO BE GREATER THAN 0.2 mm.

2. MAXIMUM NON-CUMULATIVE VARIATION BETWEEN TAPE FEED HOLES SHALL NOT EXCEED 1 mm IN 20

PITCHES.

3. HOLDDOWN TAPE NOT TO EXCEED BEYOND THE EDGE(S) OF CARRIER TAPE AND THERE SHALL BE NO

EXPOSURE OF ADHESIVE.

4. NO MORE THAN 3 CONSECUTIVE MISSING COMPONENTS ARE PERMITTED.

5. A TAPE TRAILER, HAVING AT LEAST THREE FEED HOLES ARE REQUIRED AFTER THE LAST COMPONENT.

6. SPLICES SHALL NOT INTERFERE WITH THE SPROCKET FEED HOLES.

Packing Detail

PACKAGE

TO-92 Bulk

TO-92 T&A

STANDARD PACK

Details

Net Weight/Qty

1K/polybag

200 gm/1K pcs

2K/ammo box

645 gm/2K pcs

INNER CARTON BOX

Size

Qty

3" x 7.5" x 7.5"

12.5" x 8" x 1.8"

Data Sheet

OUTER CARTON BOX

Size

Qty

Gr Wt

17" x 15" x 13.5"

80K

23 kgs

17" x 15" x 13.5"

32K

12.5 kgs

Page 3 of 4

Continental Device India Limited

Notes

BF494

BF495

TO-92

Plastic Package

Disclaimer

The product information and the selection guides facilitate selection of the CDIL's Discrete Semiconductor Device(s) best suited

for application in your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as

to confirm that the Device(s) meet functionality parameters for your application. The information furnished in the Data Sheet and

on the CDIL Web Site/CD is believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies

or incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any

CDIL product; neither does it convey any license under its patent rights nor rights of others. These products are not designed for

use in life saving/support appliances or systems. CDIL customers selling these products (either as individual Discrete

Semiconductor Devices or incorporated in their end products), in any life saving/support appliances or systems or applications do

so at their own risk and CDIL will not be responsible for any damages resulting from such sale(s).

CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.

CDIL is a registered Trademark of

Continental Device India Limited

C-120 Naraina Industrial Area, New Delhi 110 028, India.

Telephone + 91-11-579 6150 Fax + 91-11-579 9569, 579 5290

www.cdil.com

e-mail sales@cdil.com

Continental Device India Limited

Data Sheet

Page 4 of 4

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BF494A Related Products

	BF494A	BF494	BF494B	BF495	BF495D	BF495C
Description	RF SMALL SIGNAL TRANSISTOR	30 mA, 20 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92	RF SMALL SIGNAL TRANSISTOR	30 mA, 20 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92	30 mA, 20 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92	30 mA, 20 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Transistor type	RF SMALL SIGNAL	GENERAL PURPOSE SMALL SIGNAL	RF SMALL SIGNAL	GENERAL PURPOSE SMALL SIGNAL	GENERAL PURPOSE SMALL SIGNAL	GENERAL PURPOSE SMALL SIGNAL
Number of terminals	-	3	-	3	3	3
Transistor polarity	-	NPN	-	NPN	NPN	NPN
Maximum collector current	-	0.0300 A	-	0.0300 A	0.0300 A	0.0300 A
Maximum Collector-Emitter Voltage	-	20 V	-	20 V	20 V	20 V
Processing package description	-	TO-92E, 3 PIN	-	TO-92E, 3 PIN	TO-92E, 3 PIN	TO-92E, 3 PIN
packaging shape	-	ROUND	-	ROUND	ROUND	ROUND
Package Size	-	CYLINDRICAL	-	CYLINDRICAL	CYLINDRICAL	CYLINDRICAL
Terminal form	-	THROUGH-HOLE	-	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal location	-	BOTTOM	-	BOTTOM	BOTTOM	BOTTOM
Packaging Materials	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
structure	-	SINGLE	-	SINGLE	SINGLE	SINGLE
Number of components	-	1	-	1	1	1
Transistor component materials	-	SILICON	-	SILICON	SILICON	SILICON
Maximum ambient power consumption	-	0.3000 W	-	0.3000 W	0.3000 W	0.3000 W
Minimum DC amplification factor	-	67	-	67	67	67
Rated crossover frequency	-	260 MHz	-	260 MHz	260 MHz	260 MHz

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