LESHAN RADIO COMPANY, LTD.
BB187–1/2
SOD523 SC-79
1
2
BB 187
2
ANODE
1
CATHODE
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V R continuous reverse voltage – 32 V
V
RM
peak reverse voltage in series with a 10 kΩ resistor – 35 V
I F continuous forward current – 20 mA
T
stg
storage temperature –55 +150 °C
T j operating junction temperature –55 +125 °C
ELECTRICAL CHARACTERISTICS T j =25°C unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. MAX. TYP. UNIT
I R reverse current V R = 30 V; see Fig.2 – – 10 nA
V
R
= 30 V; T
j
=85°C; see Fig.2 – – 200 nA
r s diode series resistance f = 470 MHz; V R = 5V – – 0.75 Ω
C
d
diode capacitance V
R
= 2 V; f = 1 MHz; see Figs 1and 3 29.3 – 34.2 pF
V R = 25 V; f = 1 MHz; see Figs 1and 3 2.57 – 2.92 pF
C
d(2V)
capacitance ratio f = 1 MHz 11 – –
C d(25V)
∆C
d
capacitance matching
V
R
= 2 to 25 V; in a sequence of 15
––2%
C
d
diodes(gliding)
VHF variable capacitance diode
FEATURES
· High linearity
· Excellent matching to 2% DMA
· Ultra small plastic SMD package
· C25: 2.75 pF; ratio: 11
· Low series resistance.
APPLICATIONS
· Electronic tuning in VHF television tuners.
· Voltage controlled oscillators (VCO).
DESCRIPTION
The BB187 is a planar technology variable capacitance diode, in a SOD523 (SC-79)
package. The excellent matching performance is achieved by gliding matching and a
direct matching assembly procedure.
MARKING CODE:X
X
1
2