UM4300 データシートの表示（PDF） - Microsemi Corporation
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UM4300 Datasheet PDF : 5 Pages
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UM4300 / UM7300
SWITCHING / ATTENUATOR PIN DIODES
DESCRIPTION
The UM4300 and UM7300 series combine a diode chip of extremely thick intrinsic
region with a low thermal resistance construction. This results in diodes uniquely
applicable to very low distortion linear attenuators and specialized functions. The
UM4300 series, with large cross-sectional chip area offers the highest power
capability, of the two series. The UM7300 series offers lower capacitance. Both
diode series are intended for use in linear attenuators operating from HF to
beyond 1 GHz. Low distortion is a result of transit time frequencies below 5 MHz.
Operated as RF switches, either diode series can be operated at low dc reverse
bias voltages, to hold off much higher RF voltage levels.
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
UM4300
Pkg
Condition
PD θ
(W) (°C/W)
A
25 °C Pin Temperature
20
7.5
B&E
C
D
½ in. total length to 25 °C
Contact Free Air
25 °C Stud Temperature
25 °C Stud Temperature
10
2.5
15
20
7.5
15
10
SM 25 °C End Cap Temperature
15
20
ALL 1 us pulse (Single)
500 kW
UM7300
PD
θ
(W)
(°C/W)
7.5
20
4
37.5
7.5
20
6
25
5.5
18
100 kW
KEY FEATURES
Extremely low distortion performance
Useful frequency range extends below
500 kHz
Power dissipation to 20 W (UM4300)
Capacitance as low as 0.7 pF
(UM7300)
Voltage ratings to 1000V
Non cavity design
Thermally matched
Isolated stud package available
APPLICATIONS / BENEFITS
RF Switching
RF Attenuators
Pick and Place compatible
Surface Mount Versions
1RoHS compliant packaging available:
use UMX4301SM, etc
VOLTAGE RATINGS
Reverse Voltage @ 10uA
Part Number
100
UM4301
UM7301
200
UM4302
UM7302
600
UM4306
UM7306
1000
UM4310
UM7310
IMPORTANT:
For the most current data consult MICROSEMI’s website:
www.MICROSEMI.com
1 - RoHS compliant versions of the UM4300 and
UM7300 are available. Specify UMX4300 or UMX7300
for RoHS version. Consult factory for details.
Copyright 2005
Rev: 3/30/2009
Microsemi
Microwave Products
75 Technology Drive, Lowell MA 01851 Tel: (978) 442-5600
Page 1
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