Surface Mount Zero Bias
Schottky Detector Diodes
Technical Data
HSMS-285x Series
Features
• Surface Mount SOT-23/
SOT-143 Packages
SOT-23/SOT-143 Package Description
Agilent’s HSMS-285x family of
zero bias Schottky detector
Lead Code Identification
(top view)
diodes has been designed and
optimized for use in small signal
(Pin <-20 dBm) applications at
frequencies below 1.5 GHz. They
are ideal for RF/ID and RF Tag
applications where primary (DC
bias) power is not available.
• Miniature SOT-323 and
SOT-363 Packages
SINGLE
3
SERIES
3
• High Detection Sensitivity:
up to 50 mV/µW at 915 MHz
1
2
1
2
• Low Flicker Noise:
#0
#2
-162 dBV/Hz at 100 Hz
UNCONNECTED
PAIR
• Low FIT (Failure in Time)
Rate*
Important Note: For detector
applications with input power
levels greater than –20 dBm, use
the HSMS-282x series at frequen-
cies below 4.0 GHz, and the
HSMS-286x series at frequencies
above 4.0 GHz. The HSMS-285x
series IS NOT RECOMMENDED
for these higher power level
applications.
3
4
• Tape and Reel Options
Available
1
2
#5
• Matched Diodes for
Consistent Performance
SOT-323 Package Lead
Code Identification
(top view)
• Better Thermal
Conductivity for Higher
Power Dissipation
• Lead-free Option Available
SINGLE
3
SERIES
3
*
For more information see the Surface
Mount Schottky Reliability Data Sheet.
Available in various package
configurations, these detector
diodes provide low cost solutions
to a wide variety of design prob-
lems. Agilent’s manufacturing
techniques assure that when two
diodes are mounted into a single
package, they are taken from
adjacent sites on the wafer,
assuring the highest possible
degree of match.
Pin Connections and
Package Marking
1
2
1
2
B
C
SOT-363 Package Lead
Code Identification
(top view)
UNCONNECTED
TRIO
1
2
3
6
5
4
BRIDGE
QUAD
6
5
4
6
5
4
Notes:
1. Package marking provides orienta-
tion and identification.
1
2
3
1
2
3
L
P
2. See “Electrical Specifications” for
appropriate package marking.