BB187 Datasheet, PDF (2/2 Pages) NXP Semiconductors – VHF variable capacitance diode

FEATURES
• High linearity
• Excellent matching to 2% DMA
• Ultra small plastic SMD package
• C25: 2.75 pF; ratio: 12
• Low series resistance.
APPLICATIONS
• Electronic tuning in VHF television
tuners
• Voltage controlled oscillators
(VCO).
Product specification
BB187
DESCRIPTION
The BB187 is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package. The
excellent matching performance is

^{handboo1k, 2 columns}
2
achieved by gliding matching and a
direct matching assembly procedure.
MBK441
PINNING
PIN
DESCRIPTION
1
cathode
2
anode
Marking code: X.
Orientation of marking code as shown.
Cathode side indicated by a bar.
Fig.1 Simplified outline
(SOD523; SC-79) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
V_R
continuous reverse voltage
V_RM
peak reverse voltage
in series with a 10 kΩ resistor
I_F
continuous forward current
T_stg
storage temperature
T_j
operating junction temperature
MIN.
−
−
−
−55
−55
MAX.
32
35
20
+150
+150
UNIT
V
V
mA
°C
°C
ELECTRICAL CHARACTERISTICS
T_j = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
I_R
reverse current
r_s
diode series resistance
C_d
diode capacitance
C--C---_d^-d--₍^-(-₂^-2-₅^--V-_V^--)-₎
∆_{--C--C---d--d-}
capacitance ratio
capacitance matching
CONDITIONS
MIN.
V_R = 30 V; see Fig.3
−
V_R = 30 V; T_j = 85 °C; see Fig.3
−
f = 470 MHz; V_R = 5 V
−
V_R = 2 V; f = 1 MHz; see Figs 2 and 4 29.3
V_R = 25 V; f = 1 MHz; see Figs 2 and 4 2.57
f = 1 MHz
11
TYP.
−
−
−
−
−
−
MAX.
10
200
0.75
34.2
2.92
−
UNIT
nA
nA
Ω
pF
pF
V_R = 2 to 25 V; in a sequence of 15 −
−
2
%
diodes (gliding)
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