BB178LX_2

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 02 — 12 February 2009

2 of 7

NXP Semiconductors

BB178LX

VHF variable capacitance diode

4.

Marking

5.

Limiting values

6.

Characteristics

Table 3.

Marking codes

Type number

Marking code

BB178LX

L3

Table 4.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

reverse voltage

-

32

V

forward current

-

20

mA

storage temperature

−55

+150

°C

junction temperature

−55

+125

°C

Table 5.

Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

reverse current

see Figure 3

-

-

10

nA

-

-

200

nA

diode series resistance

see Figure 2

-

0.7

-

Ω

diode capacitance

f = 1 MHz; see Figure 1 and

Figure 4

34.65

-

42.35

pF

2.36

2.6

2.75

pF

diode capacitance ratio (1 V to 2 V)

f = 1 MHz

-

1.3

-

diode capacitance ratio (1 V to 28 V)

f = 1 MHz

13.5

15

-

-

1.08

-

∆C

diode capacitance matching

5 diodes (gliding)

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