www.MICROSEMI.com
UM4000 / UM4900
HIGH POWER PIN DIODES
RoHS Compliant Versions Available
DESCRIPTION
KEY FEATURES
The UM4000 and UM4900 series features high power PIN diodes with long carrier
lifetimes and thick I-regions. They are especially suitable for use in low distortion
switches and attenuators, in HF through S band frequencies. While both series are
electrically equivalent, the UM4900 series have higher power ratings due to a shorter
thermal path between the chip and package. High charge storage and long carrier
lifetime enable high RF levels to be controlled with relatively low bias current.
Similarly, peak RF voltages can be handled well in excess of applied reverse bias
voltage.
Both series have been fully qualified in high power UHF phase shifters and megawatt
peak-power duplexers, accumulating thousands of hours of proven performance.
Both types have been used in the design of antenna selectors and couplers, where
inductance and capacitance elements are switched in and out of filter or cavity
networks.
. Voltage ratings to 1000 V
. Power dissipation to 37.5 W
. Series resistance rated at 0.5 Ω
. Carrier lifetime greater than 5 µs
. Non cavity design
. RoHS compliant version
available 1
The standard finish for the UM4000 series is Sn/Pb. For RoHS compliant devices,
use the UMX prefix. (IE: UMX4000SM) The UMX series meets RoHS requirements
per EU Directive 2002/95/EC.
. Thermally matched configuration
. Low capacitance at 0 V bias
. Low conductance at 0 V bias
IMPORTANT:
. Compatible with automatic
For the most current data, consult our website: www.MICROSEMI.com
insertion equipment
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
1- RoHS compliant version is
supplied with a matte tin finish.
(Order UMX4000, UMX4900)
Package
Condition
UM4000
UM4900
PD (W) θ (OC/W) PD (W) θ (OC/W)
A
25 OC Pin Temperature
25
6
37.5
4
APPLICATIONS/BENEFITS
. Isolated stud package available
½ in. total length to 25 OC Contact
12
2.5
1.25
12
2.5
37.5
25
12.5
B & E
Free Air
. Surface mount package available
C
D
25 OC Stud Temperature
25 OC Stud Temperature
25 OC End Cap Temperature
25
6
8
7
4
6
18.75
SM
All
20
N/A
1 us pulse (Single)
100 kW
100 kW
VOLTAGE RATINGS
Reverse Voltage @ 10 uA
UM4000
UM4001
UM4002
-
UM4006
UM4010
UM4900
UM4901
UM4902
100
200
400
600
-
UM4906
-
1000
Copyright 2007
Rev: 2009-01-19
Microsemi
Page 1
Microwave Products
75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748