Additional CV matching capability:

Zetex recognise that some applications ie filtering in digital audio receiver circuits, require these dual varactors

to be very tightly matched. To meet this requirement devices can be supplied tested into capacitance bands at the

2V condition.

Each ( TA ) reel will contain 3000 devices carrying only diodes tested into a single band and each device will have a

partmark identifying the capacitance band which they meet.

As this is a final test measurement customers will not have the option to specify a capacitance at the time of

ordering and will be obliged to accept the band into which the devices are tested.

- Purchase orders can be placed in multiples of 3000 units / reel for device type FSD270TA

- Samples can be obtained from Zetex Plc quoting device type #FSD270TA

FSD270

ISSUE 1 - AUGUST 2002

2

PARAMETER

SYMBOL

VALUE

UNIT

Forward Current (single diode)

I

F

200

mA

Power Dissipation at T

Linear Derating Factor

P

D

330

3

mW

mW/°C

Operating and Storage Temperature Range

T

-55 to +150

°C

ABSOLUTE MAXIMUM RATINGS.

NOTES

(a) For a device surface mounted on 25mm x 25mm FR4 PCB with high coverage of single sided 1oz copper,

in still air conditions

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

CONDITIONS.

Reverse Breakdown

Voltage

V

BR

25

V

I

Reverse Leakage Current

I

R

0.2

20

nA

V

Temperature Coefficient

η

400

ppm/°C

V

Diode Capacitance

C

d

29.7

33.0

36.3

pF

V

Capacitance Ratio

C

5.0

6.5

V

Figure of Merit

Q

200

V

MIN.

MAX.

UNIT

PART NUMBER

BAND A

29.7

32.1

pF

70A

BAND B

31.9

34.1

pF

70B

BAND C

33.9

36.3

pF

70C