
HSMS-280x
COMMON
CATHODE
#4
UNCONNECTED
PAIR
COMMON
ANODE
#3
SERIES
#2
SINGLE
#0
1 2
3
3 4
RING
QUAD
3 4
BRIDGE
QUAD
3 4
1 2
3
1 2
3
1 2
3
COMMON
CATHODE
#4
UNCONNECTED
PAIR
#5
COMMON
ANODE
#3
SERIES
#2
SINGLE
#0
1 2
3
1 2
3 4
BRIDGE
QUAD
#8
1 2
3 4
1 2
3
1 2
3
1 2
3
COMMON
CATHODE QUAD
M
UNCONNECTED
TRIO
L
BRIDGE
QUAD
P
COMMON
ANODE QUAD
N
RING
QUAD
R
1 2 3
6 5 4
HIGH ISOLATION
UNCONNECTED PAIR
K
1 2 3
6 5 4
1 2 3
6 5 4
1 2 3
6 5 4
1 2 3
6 5 4
1 2 3
6 5 4
Surface Mount RF Schottky Barrier Diodes
Data Sheet
Description/Applications
These Schottky diodes are specically designed for both
analog and digital applications. This series oers a wide
Features
• Surface Mount Packages
• High Breakdown Voltage
range of specications and package congurations to
give the designer wide exibility. The HSMS‑280x series
of diodes is optimized for high voltage applications.
Note that Avago’s manufacturing techniques assure that
dice found in pairs and quads are taken from adjacent sites
on the wafer, assuring the highest degree of match.
• Low FIT (Failure in Time) Rate*
• Six‑sigma Quality Level
• Single, Dual and Quad Versions
• Tape and Reel Options Available
• Lead‑free
* For more information see the Surface Mount Schottky Reliability
Data Sheet.
Package Lead Code Identication, SOT-323 (Top View) Package Lead Code Identication, SOT-363 (Top View)
Package Lead Code Identication, SOT-23/SOT-143 (Top View)

Pin Connections and Package Marking, SOT-363
Notes:
1. Package marking provides orientation and identication.
2. See “Electrical Specications” for appropriate package marking.
ESD WARNING:
Handling Precautions Should Be Taken To Avoid Static Discharge.
Absolute Maximum Ratings
[1]
TC = 25°C
Symbol Parameter Unit SOT-23/SOT-143 SOT-323/SOT-363
I
f
P
IV
T
j
T
stg
θ
jc
Notes:
1. Operation in excess of any one of these conditions may result in permanent damage to the device.
2. TC = +25°C, where TC is dened to be the temperature at the package pins where contact is made to the circuit board.
Electrical Specications TA = 25°C, Single Diode
Part
Number
[4]
HSMS
2800 A0 0 Single
2802 A2 2 Series
2803 A3 3 Common Anode
2804 A4 4 Common Cathode
2805 A5 5 Unconnected Pair
2808 A8 8 Bridge Quad
280B A0 B Single
280C A2 C Series
280E A3 E Common Anode
280F A4 F Common Cathode
280K AK K
280L AL L Unconnected Trio
280M H M Common Cathode Quad
280N N N Common Anode Quad
280P AP P Bridge Quad
280R O R Ring Quad
Test Conditions IR = 10 mA IF = 1 mA VF = 0 V
Notes:
1. DVF for diodes in pairs and quads in 15 mV maximum at 1 mA.
2. DCTO for diodes in pairs and quads is 0.2 pF maximum.
3. Eective Carrier Lifetime (t) for all these diodes is 100 ps maximum measured with Krakauer method at 5 mA.
4. See section titled “Quad Capacitance.”
5. RD = RS + 5.2 Ω at 25°C and If = 5 mA.
Forward Current (1 µs Pulse) Amp 1 1
Peak Inverse Voltage V Same as V
BR
Junction Temperature °C 150 150
Storage Temperature °C -65 to 150 -65 to 150
Thermal Resistance
[2]
°C/W 500 150
[3]
Package
Marking
Code
Lead
Code Conguration
High Isolation
Unconnected Pair
Minimum
Breakdown
Voltage
VBR (V)
[4]
70 410 1.0 @ 15 200 @ 50 2.0 35
Maximum
Forward
Voltage
VF (mV)
Maximum
Forward
Voltage
VF (V) @ IF (mA)
Maximum
Reverse
Leakage
IR (nA) @ VR (V)
Same as V
Maximum
Capacitance
CT (pF)
f = 1 MHz
BR
Typical
Dynamic
Resistance
[5]
RD (Ω)
IF = 5 mA
2

Quad Capacitance
C
j
R
j
R
S
Rj =
8.33 X 10-5 nT
Ib + I
s
where
Ib = externally applied bias current in amps
Is = saturation current (see table of SPICE parameters)
T = temperature, °K
n = ideality factor (see table of SPICE parameters)
Note:
To effectively model the packaged HSMS-280x product,
please refer to Application Note AN1124.
RS = series resistance (see Table of SPICE parameters)
Cj = junction capacitance (see Table of SPICE parameters)
Capacitance of Schottky diode quads is measured using
an HP4271 LCR meter. This instrument eectively isolates
individual diode branches from the others, allowing
accurate capacitance measurement of each branch or
each diode. The conditions are: 20 mV R.M.S. voltage at 1
MHz. Avago denes this measurement as “CM”, and it is
equivalent to the capacitance of the diode by itself. The
equivalent diagonal and adjacent capacitances can then
be calculated by the formulas given below.
In a quad, the diagonal capacitance is the capacitance
between points A and B as shown in the gure below.
The diagonal capacitance is calculated using the follow‑
ing formula
C1 x C2 C3 x C
C
DIAGONAL
= _______ + _______
C1 + C2 C3 + C
4
4
The equivalent adjacent capacitance is the capacitance
between points A and C in the gure below. This capaci‑
tance is calculated using the following formula
1
C
ADJACENT
1 1 1
–– + –– + ––
C2 C3 C
= C1 + ____________
4
This information does not apply to cross‑over quad
diodes.
Linear Equivalent Circuit, Diode Chip
SPICE Parameters
Parameter Units HSMS-280x
B
V
C
J0
E
G
I
BV
I
S
N 1.08
R
S
P
B
P
T
M 0.5
V 75
pF 1.6
eV 0.69
A E‑5
A 3.00E‑08
Ω 30
V 0.65
2
3