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High Performance Schottky
Diode for Transient Suppression
Technical Data
Features
Ultra-low Series Resistance
for Higher Current Handling
Picosecond Switching
Low Capacitance
Lead-free Option Available
Applications
RF and computer designs that
require circuit protection, high-
speed switching, and voltage
clamping.
Package Lead Code
Identification
(Top View)
Description
The HSMS-2700 series of Schottky
diodes, commonly referred to as
clipping /clamping diodes, are
optimal for circuit and waveshape
preservation applications with
high speed switching. Ultra-low
series resistance, R
S
, makes them
ideal for protecting sensitive
circuit elements against higher
current transients carried on data
lines. With picosecond switching,
the HSMS-270x can respond to
noise spikes with rise times as fast
as 1 ns. Low capacitance mini-
mizes waveshape loss that causes
signal degradation.
HSMS-2700/-2702
-270B/-270C
SERIES
2, C
SINGLE
0, B
1
2
3
1
2
3
HSMS-270x DC Electrical Specifications, T
A
= +25
C
[1]
Maximum
Minimum
Typical
Maximum
Part
Package
Forward Breakdown
Typical
Series
Eff. Carrier
Number Marking Lead
Voltage
Voltage
Capacitance Resistance
Lifetime
HSMS-
Code
[2]
Code Configuration
Package
V
F
(mV)
V
BR
(V)
C
T
(pF)
R
S
(
)
(ps)
-2700
J0
0
Single
SOT-23
-270B
B
SOT-323
(3-lead SC-70)
-2702
2
SOT-23
-270C
J2
C
Series
SOT-323
(3-lead SC-70)
550
[3]
15
[4]
6.7
[5]
0.65
100
[6]
Notes:
1.
T
A
= +25
C, where T
A
is defined to be the temperature at the package pins where contact is made to the circuit board.
2.
Package marking code is laser marked.
3.
I
F
= 100 mA; 100% tested
4.
I
F
= 100
A; 100% tested
5.
V
F
= 0; f =1 MHz
6.
Measured with Karkauer method at 20 mA; guaranteed by design.
2
Absolute Maximum Ratings, T
A
= 25C
Symbol
Parameter
Unit
Absolute Maximum
[1]
HSMS-2700/-2702
HSMS-270B/-270C
I
F
DC Forward Current
mA
350
750
I
F- peak
Peak Surge Current (1
s pulse)
A
1.0
1.0
P
T
Total Power Dissipation
mW
250
825
P
INV
Peak Inverse Voltage
V
15
15
T
J
Junction Temperature
C
150
150
T
STG
Storage Temperature
C
-65 to 150
-65 to 150
JC
Thermal Resistance, junction to lead
C/W
500
150
Note:
1. Operation in excess of any one of these conditions may result in permanent damage to the device.
R
S
0.08 pF
SPICE model
2 nH
Linear and Non-linear SPICE Model SPICE Parameters
Parameter
Unit
Value
B V
V
25
CJO
pF
6.7
EG
eV
0.55
IBV
A
10E-4
IS
A
1.4E-7
N
1.04
R S
0.65
PB
V
0.6
PT
2
M
0.5
3
Typical Performance
Figure 2. Forward Current vs.
Forward Voltage at Temperature for
HSMS-270B and HSMS-270C.
0
0.1
0.3
0.2
0.5
0.4
0.6
I
F
FORWARD CURRENT (mA)
V
F
FORWARD VOLTAGE (V)
Figure 1. Forward Current vs.
Forward Voltage at Temperature for
HSMS-2700 and HSMS-2702.
0.01
10
100
1
0.1
300
T
A
= +75
C
T
A
= +25
C
T
A
= 25
C
Figure 3. Junction Temperature vs.
Forward Current as a Function of
Heat Sink Temperature for the
HSMS-2700 and HSMS-2702.
Note: Data is calculated from SPICE
parameters.
Figure 5. Total Capacitance vs.
Reverse Voltage.
0
5
10
20
C
T
TOTAL CAPACITANCE (pF)
V
F
REVERSE VOLTAGE (V)
15
1
3
2
7
4
6
5
T
A
= +75
C
T
A
= +25
C
T
A
= 25
C
0
50
150
100
300
250
200
350
T
J
JUNCTION TEMPERATURE (
C)
I
F
FORWARD CURRENT (mA)
0
140
120
100
80
60
40
20
160
Max. safe junction temp.
Figure 4. Junction Temperature vs.
Current as a Function of Heat Sink
Temperature for HSMS-270B and
HSMS-270C.
Note: Data is calculated from SPICE
parameters.
T
A
= +75
C
T
A
= +25
C
T
A
= 25
C
0
150
450
300
600
750
T
J
JUNCTION TEMPERATURE (
C)
I
F
FORWARD CURRENT (mA)
0
140
120
100
80
60
40
20
160
Max. safe junction temp.
0
0.1
0.3
0.2
0.5
0.4
0.8
0.7
0.6
I
F
FORWARD CURRENT (mA)
V
F
FORWARD VOLTAGE (V)
0.01
10
100
1
0.1
500
T
A
= +75
C
T
A
= +25
C
T
A
= 25
C
4
Package Dimensions
Outline SOT-23
Tape Dimensions and Product Orientation
For Outline SOT-23
3
1
2
SIDE VIEW
TOP VIEW
END VIEW
DIMENSIONS ARE IN MILLIMETERS (INCHES)
1.02 (0.040)
0.89 (0.035)
0.60 (0.024)
0.45 (0.018)
1.40 (0.055)
1.20 (0.047)
2.65 (0.104)
2.10 (0.083)
3.06 (0.120)
2.80 (0.110)
2.04 (0.080)
1.78 (0.070)
1.02 (0.041)
0.85 (0.033)
0.152 (0.006)
0.066 (0.003)
0.10 (0.004)
0.013 (0.0005)
0.69 (0.027)
0.45 (0.018)
0.54 (0.021)
0.37 (0.015)
X X X
PACKAGE
MARKING
CODE (XX)
DATE CODE (X)
Device Orientation
For Outlines SOT-23/323
Note: "AB" represents package marking code.
"C" represents date code.
END VIEW
8 mm
4 mm
TOP VIEW
ABC
ABC
ABC
ABC
USER
FEED
DIRECTION
COVER TAPE
CARRIER
TAPE
REEL
9
MAX
A
0
P
P
0
D
P
2
E
F
W
D
1
Ko
8
MAX
B
0
13.5
MAX
t1
DESCRIPTION
SYMBOL
SIZE (mm)
SIZE (INCHES)
LENGTH
WIDTH
DEPTH
PITCH
BOTTOM HOLE DIAMETER
A
0
B
0
K
0
P
D
1
3.15
0.10
2.77
0.10
1.22
0.10
4.00
0.10
1.00 + 0.05
0.124
0.004
0.109
0.004
0.048
0.004
0.157
0.004
0.039
0.002
CAVITY
DIAMETER
PITCH
POSITION
D
P
0
E
1.50 + 0.10
4.00
0.10
1.75
0.10
0.059 + 0.004
0.157
0.004
0.069
0.004
PERFORATION
WIDTH
THICKNESS
W
t1
8.00 + 0.30 0.10
0.229
0.013
0.315 + 0.012 0.004
0.009
0.0005
CARRIER TAPE
CAVITY TO PERFORATION
(WIDTH DIRECTION)
CAVITY TO PERFORATION
(LENGTH DIRECTION)
F
P
2
3.50
0.05
2.00
0.05
0.138
0.002
0.079
0.002
DISTANCE
BETWEEN
CENTERLINE
5
Package Dimensions
Outline SOT-323 (SC-70 3 Lead)
Tape Dimensions and Product Orientation
For Outline SOT-323 (SC-70 3 Lead)
2.20 (0.087)
2.00 (0.079)
1.35 (0.053)
1.15 (0.045)
1.30 (0.051)
REF.
0.650 BSC (0.025)
2.20 (0.087)
1.80 (0.071)
0.10 (0.004)
0.00 (0.00)
0.25 (0.010)
0.15 (0.006)
1.00 (0.039)
0.80 (0.031)
0.20 (0.008)
0.10 (0.004)
0.30 (0.012)
0.10 (0.004)
0.30 REF.
10
0.425 (0.017)
TYP.
DIMENSIONS ARE IN MILLIMETERS (INCHES)
PACKAGE
MARKING
CODE (XX)
X X X
DATE CODE (X)
P
P
0
P
2
F
W
C
D
1
D
E
A
0
8
MAX.
t
1
(CARRIER TAPE THICKNESS)
T
t
(COVER TAPE THICKNESS)
8
MAX.
B
0
K
0
DESCRIPTION
SYMBOL
SIZE (mm)
SIZE (INCHES)
LENGTH
WIDTH
DEPTH
PITCH
BOTTOM HOLE DIAMETER
A
0
B
0
K
0
P
D
1
2.40
0.10
2.40
0.10
1.20
0.10
4.00
0.10
1.00 + 0.25
0.094
0.004
0.094
0.004
0.047
0.004
0.157
0.004
0.039 + 0.010
CAVITY
DIAMETER
PITCH
POSITION
D
P
0
E
1.55
0.05
4.00
0.10
1.75
0.10
0.061
0.002
0.157
0.004
0.069
0.004
PERFORATION
WIDTH
THICKNESS
W
t
1
8.00
0.30
0.254
0.02
0.315
0.012
0.0100
0.0008
CARRIER TAPE
CAVITY TO PERFORATION
(WIDTH DIRECTION)
CAVITY TO PERFORATION
(LENGTH DIRECTION)
F
P
2
3.50
0.05
2.00
0.05
0.138
0.002
0.079
0.002
DISTANCE
WIDTH
TAPE THICKNESS
C
T
t
5.4
0.10
0.062
0.001
0.205
0.004
0.0025
0.00004
COVER TAPE
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