Low Distortion Attenuator
Plastic Packaged PIN Diodes
SMP1304 Series
Features
s
Low Distortion Design
s
Frequency Range from HF to > 2 GHz
s
Designed for Base Station Applications
s
Configured for PI and TEE Attenuators
Description
The SMP1304 series of plastic packaged, surface
mountable, low capacitance (0.3 pF) silicon PIN diodes
are designed for use in attenuator applications from 5 MHz
to beyond 2 GHz. The thick 100
µm
I region of these PIN
diodes makes them very attractive for use in low distortion
PI and TEE attenuators commonly used in TV distribution
applications. The 1
µS
typical carrier lifetime of these
diodes results in resistance of 20
Ω
maximum at 1 mA and
7
Ω
maximum at 10 mA. Available in a selection of plastic
packages: as a single diode in the small footprint
SOD-323 package and in a variety of configurations in the
SOT-23 package, including a low inductance (0.4 nH)
SMP1304-007 package. Also available in the SOT-143
package are three diode junctions designed for insertion
in TEE attenuators (SMP1304-018) and PI attenuators
(SMP1304-019). Also available in a SOT-5 (SMP1304-027)
package as a four diode array designed for insertion in the
commonly used 4 diode PI attenuator circuit.
Absolute Maximum Ratings
Characteristic
Reverse Voltage (V
R
)
Power Dissipation @ 25°C Lead
Temperature (P
D
)
Storage Temperature (T
ST
)
Operating Temperature (T
OP
)
ESD Human Body Model
Value
200 V
250 mW
-65°C to +150°C
-65°C to +150°C
Class 1C
Single
Marking: PG1
SOT-23
o
SMP1304-001
Common
Cathode
Marking: PG3
SOT-23
o
SMP1304-004
Series Pair
Marking: PG2
SOT-23
o
SMP1304-005
Low
Inductance
Marking: PGB
SOT-23
o
SMP1304-007
Single
PI
Marking: PGJ
PI
Marking: PGM
SOT-5
o
SMP1304-027
SOD-323
o
SMP1304-011
SOT-143
o
SMP1304-019
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 1.5 nH
L
S
= 0.4 nH
L
S
= 1.5 nH
o
Available through distribution.
Alpha Industries, Inc.
[781] 935-5150
•
Fax
[617] 824-4579
•
Email
sales@alphaind.com
•
www.alphaind.com
Specifications subject to change without notice. 1/01A
1
o
Available through distribution.
ALPHA [ ALPHA INDUSTRIES ]
