ALPHA SMP1304-001, SMP1304-004, SMP1304-005, SMP1304-007, SMP1304-011 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 1/01A

Low Distortion Attenuator
Plastic Packaged PIN Diodes

Features

■ Low Distortion Design

■ Frequency Range from HF to > 2 GHz

■ Designed for Base Station Applications

■ 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 f or 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 Ωmaximum at 10 mA.A vailab le 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 availab le in a SO T-5 (SMP1304-027)
package as a four diode arra y designed f or insertion in the
commonly used 4 diode PI attenuator circuit.

SMP1304 Series

Characteristic Value

Reverse Voltage (VR) 200 V
Power Dissipation @ 25°C Lead 250 mW

Temperature (PD)
Storage Temperature (TST) -65°C to +150°C
Operating Temperature (TOP) -65°C to +150°C
ESD Human Body Model Class 1C

Absolute Maximum Ratings

♦ Available through distribution.

Single Common Series Pair Low Single PI PI

Cathode Inductance

Marking: PG1 Marking: PG3 Marking: PG2 Marking: PGB Marking: PGJ Marking: PGM

SOT-23 SOT-23 SOT-23 SOT-23 SOD-323 SOT-143 SOT-5

♦ SMP1304-001 ♦ SMP1304-004 ♦ SMP1304-005 ♦ SMP1304-007 ♦ SMP1304-011 ♦ SMP1304-019 ♦ SMP1304-027

LS= 1.5 nH LS= 1.5 nH LS= 1.5 nH LS= 0.4 nH LS= 1.5 nH

♦ Available through distribution.

2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 1/01A

Low Distortion Attenuator Plastic Packaged PIN Diodes SMP1304 Series

Series Resistance vs. Current @ 100 MHz

0.01 0.1 1 10 100

Forward Current (mA)

Series Resistance (Ω)

0.1

1

10

100

1000

10000

01251020 10050

Capacitance vs. Reverse Voltage

0

0.2

0.4

0.6

0.1

0.3

0.5

0.7

0.8

Reverse Voltage (V)

Capacitance (pF)

100 MHz

1 MHz

1 GHz

400 500 600 700 800 900 1000

DC Characteristic

0.01

0.1

1

10

100

Forward Voltage (mV)

Forward Current (mA)

.

0 500 1000 1500 2000

Conductance vs. Frequency

and Reverse Voltage

Frequency (MHz)

Conductance (µS)

0

50

100

150

200

250

300

350

400

0 V
10 V

40 V

Typical Performance Data

Parameter Condition Typ. Max. Unit

Reverse Current (IR)V

R

= 200 V 10 µA
Capacitance (CT) F = 1 MHz, V = 30 V 0.30 pF
Capacitance (CT) F = 1 MHz, V = 30 V 0.45 pF

(SMP1304-018 & SMP1304-019)
Resistance (RS) F = 100 MHz, I = 1 mA 40 50 Ω
Resistance (RS) F = 100 MHz, I = 10 mA 7.0 Ω
Resistance (RS) F = 100 MHz, I = 100 mA 2.0 Ω
Forward Voltage (VF) IF = 10 mA 0.8 V
Carrier Lifetime (TI) IF = 10 mA 1.0 µS
I Region Width 100 µm

Electrical Specifications at 25°C