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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

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)

0.1

1

10

100

1000

10000

0125

10

20

100

50

Capacitance vs. Reverse Voltage

0

0.2

0.4

0.6

0.1

0.3

0.5

0.7

0.8

Reverse Voltage (V)

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)

.

0

500

1000

1500

2000

Conductance vs. Frequency

and Reverse Voltage

Frequency (MHz)

0

50

100

150

200

250

300

350

400

0 V

10 V

40 V

Typical Performance Data

Parameter

Condition

Typ.

Max.

Unit

10

µA

F = 1 MHz, V = 30 V

0.30

pF

F = 1 MHz, V = 30 V

0.45

pF

(SMP1304-018 & SMP1304-019)

F = 100 MHz, I = 1 mA

40

50

Ω

F = 100 MHz, I = 10 mA

7.0

Ω

F = 100 MHz, I = 100 mA

2.0

Ω

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