Hyperabrupt Tuning Varactors
Features
I High Capacitance Ratio,
C0.3 V/C4.7 V = 12 Typ.
I Multiple Packages SOT-23, SOD-323,
SC-70 and SC-79
I Designed for High Volume Commercial
Applications
I SPICE Models are Available
SMV1247–SMV1255
Description
The SMV1247–SMV1255 series of silicon hyperabrupt
junction varactor diodes are designed for use in VCOs with
low tuning voltage operation. This family of varactors is
characterized for capacitance and resistance over
temperature. SPICE models are provided.
Absolute Maximum Ratings
Characteristic
Reverse Voltage (VR)
Forward Current (IF)
Power Dissipation (PD)
Storage Temperature (TST)
Operating Temperature (TOP)
Value
15 V
20 mA
250 mW
-55°C to +150°C
-55°C to +125°C
Single
Single
Single
SC-79
SOD-323
SOT-23
o SMV1247-079
o SMV1248-001
o SMV1249-079 o SMV1249-011 o SMV1249-001
o SMV1251-079 o SMV1251-011 o SMV1251-001
o SMV1253-079
o SMV1255-079 o SMV1255-011 o SMV1255-001
LS = 0.7 nH
LS = 1.5 nH
LS = 1.5 nH
o Available through distribution.
For other packages or configurations, please contact the factory.
Common Anode Common Cathode
SOT-23
SOT-23
Common Anode
SC-70
o SMV1249-003
o SMV1255-003
LS = 1.5 nH
o SMV1251-004
o SMV1253-004
o SMV1255-004
LS = 1.5 nH
o SMV1249-073
o SMV1255-073
LS = 1.4 nH
Common Cathode
SC-70
o SMV1247-074
o SMV1251-074
LS = 1.4 nH
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/00A
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