Datasheet BB145B Datasheet (Philips)

DISCRETE SEMICONDUCTORS

DATA SH EET

M3D319

BB145B

Low-voltage variable capacitance
diode

Product specification 1999 Dec 15

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

FEATURES

• Ultra small plastic SMD package

• C4: 2.75 pF; ratio: 2.4

• Low series resistance.

APPLICATIONS

• Voltage controlled oscillators
(VCO).

DESCRIPTION

The BB145B is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package.

PINNING

PIN DESCRIPTION

1 cathode
2 anode

handbook, 2 columns

12

Z

Marking code: Z.
Orientation of marking code as shown.
Cathode side indicated by a bar.

MBK441

Fig.1 Simplified outline

(SOD523; SC-79) and symbol.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

R

V

RM

I

F

T

stg

T

j

continuous reverse voltage − 6V
peak reverse voltage in series with a 10 kΩ resistor − 8V
continuous forward current − 20 mA
storage temperature −55 +150 °C
operating junction temperature −55 +150 °C

ELECTRICAL CHARACTERISTICS

Tj=25°C unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

I

R

r

s

C

d

C

d1V()

---------------­C

d4V()

reverse current VR= 6 V; see Fig.3 − 10 nA

V

=6V; Tj=85°C; see Fig.3 − 200 nA

R

diode series resistance f = 470 MHz; VR=1V − 0.6 Ω
diode capacitance VR= 1 V; f = 1 MHz; see Figs 2 and 4 6.4 7.2 pF

= 4 V; f = 1 MHz; see Figs 2 and 4 2.55 2.95 pF

V

R

capacitance ratio f = 1 MHz 2.2 −

1999 Dec 15 2

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

GRAPHICAL DATA

10

handbook, full pagewidth

C

d

(pF)

8

6

4

2

0

−1

10

f =1 MHz; Tj=25°C.

1

VR (V)

Fig.2 Diode capacitance as a function of reverse voltage; typical values.

MCD782

10

3

10

handbook, halfpage

I

R

(nA)

2

10

10

50

o

T ( C)

j

Fig.3 Reversecurrent asa functionofjunction

temperature; maximum values.

MLC816

−3

10

handbook, halfpage

TC

d

−1

(K

)

−4

10

−1

1000

10

110

MGS352

VR (V)

Fig.4 Temperature coefficient of diode

capacitance as a function of
reverse voltage; typical values.

1999 Dec 15 3

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

PACKAGE OUTLINE

Plastic surface mounted package; 2 leads SOD523

A

c

vM

H

E

A

D

12

b

E

p

(1)

OUTLINE
VERSION

SOD523 SC-79

IEC JEDEC EIAJ

A

REFERENCES

0 0.5 1 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT b

mm

Note

1. The marking bar indicates the cathode.

0.7

0.5

A

0.35

0.25

p

PROJECTION

cD

0.2

1.3

0.1

1.1

EUROPEAN

E

0.9

0.7

H

E

1.7

0.15

1.5

ISSUE DATE

98-11-25

v

DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in suchapplications do so at their ownrisk and agree to fullyindemnify Philips for any damages resultingfrom such
improper use or sale.

1999 Dec 15 4

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

NOTES

1999 Dec 15 5

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

NOTES

1999 Dec 15 6

Philips Semiconductors Product specification

Low-voltage variable capacitance diode BB145B

NOTES

1999 Dec 15 7

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68

Printed in The Netherlands 125004/01/pp8 Date of release: 1999 Dec 15 Document order number: 9397 750 06462