05095
PSMS05
thru
PSMS24C
STANDARD CAPACITANCE TVS ARRAY
APPLICATIONS
✔
Ethernet - 10 Base T
✔
Cellular Phones
✔
Handheld Electronics
✔
FireWire & USB Interfaces
IEC COMPATIBILITY
(EN61000-4)
✔
61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔
61000-4-4 (EFT): 40A - 5/50ns
✔
61000-4-5 (Surge): 12A, 8/20μs - Level 1(Line-Gnd) & Level 2(Line-Line)
SOT-23-6
FEATURES
✔
350 Watts Peak Pulse Power per Line (tp=8/20μs)
✔
Monolithic Design
✔
Available in Multiple Voltage Types Ranging From 5V to 24V
✔
Protects 4 Lines
✔
ESD Protection > 25 kilovolts
✔
Low Clamping Voltage
✔
Unidirectional & Bidirectional Configurations
✔
Low Leakage Current
✔
RoHS Compliant
MECHANICAL CHARACTERISTICS
✔
✔
✔
✔
Molded JEDEC SOT-23-6 Package
Weight 16 milligrams (Approximate)
Available in Lead-Free Pure-Tin Plating(Annealed)
Solder Reflow Temperature:
Pure-Tin - Sn, 100: 260-270°C
✔
Consult Factory for Leaded Device Availability
✔
Flammability Rating UL 94V-0
✔
8mm Tape and Reel Per EIA Standard 481
✔
Marking: Marking Code & Pin One Defined By DOT on Package
PIN CONFIGURATIONS
UNIDIRECTIONAL
BIDIRECTIONAL
1
2
3
6
5
4
1
2
3
6
5
4
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PSMS24C
DEVICE CHARACTERISTICS
MAXIMUM RATINGS
@ 25°C Unless Otherwise Specified
PARAMETER
Peak Pulse Power (t
p
= 8/20μs) - See Figure 1
Operating Temperature
Storage Temperature
SYMBOL
P
PP
T
L
T
STG
VALUE
350
-55 to 150
-55 to 150
UNITS
Watts
°C
°C
ELECTRICAL CHARACTERISTICS PER LINE
PART
NUMBER
(See Notes 1-3)
DEVICE
MARKING
RATED
STAND-OFF
VOLTAGE
MINIMUM
BREAKDOWN
VOLTAGE
@ 1mA
V
(BR)
VOLTS
@ 25°C Unless Otherwise Specified
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@8/20μs
V
C
@ I
PP
MAXIMUM
LEAKAGE
CURRENT
@V
WM
I
D
μA
TYPICAL
CAPACITANCE
(See Note 4)
0V @ 1 MHz
Cj
pF
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ I
P
= 1A
V
C
VOLTS
V
WM
VOLTS
PSMS05
PSMS05C
PSMS12
PSMS12C
PSMS15
PSMS15C
PSMS24
PSMS24C
Note
Note
Note
Note
PRH
PRL
PRI
PRM
PRJ
PRN
PRK
PRO
5.0
5.0
12.0
12.0
15.0
15.0
24.0
24.0
6.0
6.0
13.3
13.3
16.7
16.7
26.7
26.7
9.8
9.8
19
19
24
24
43
43
21.0V @ 17.0A
21.0V @ 17.0A
29.2V @ 12.0A
29.2V @ 12.0A
34.6V @ 10.0A
34.6V @ 10.0A
58.3V @ 6.0A
58.3V @ 6.0A
20
20
1
1
1
1
1
1
150
150
80
80
50
50
40
40
1:
Part numbers with an additional “C” suffix are bidirectional devices, i.e., PSMS05C.
2:
Unidirectional Only:
Test between pin 1 to 2 or 5, 4 to 2 or 5, 6 to 2 or 5, 3 to 2 or 5.
3:
Bidirectional Only:
Test between pin 5 to 1 or 3 or 4 or 6. Electrical characteristics apply in both directions.
4:
Unidirectional Only:
Capacitance measured between pins 1, 3, 4, 6, to 2.
10,000
P
PP
- Peak Pulse Power - Watts
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
I
PP
- Peak Pulse Current - % of I
PP
120
100
80
60
40
20
0
t
f
FIGURE 2
PULSE WAVE FORM
Peak Value I
PP
TEST
WAVEFORM
PARAMETERS
t
f
= 8μs
t
d
= 20μs
1,000
350W 8/20μs Waveform
e
-t
100
t
d
= t I /2
PP
10
0.1
1
10
100
t
d
- Pulse Duration -
μs
1,000
10,000
0
5
10
15
t - Time -
μs
20
25
30
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PSMS24C
GRAPHS
FIGURE 3
POWER DERATING CURVE
100
Peak Pulse Power
8/20µs
80
% Of Rated Power
60
40
20
Average Power
0
0
25
50
75
100
125
TL - Lead Temperature - °C
150
40
5 Volts per Division
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSMS05C
30
20
10
0
ESD Test Pulse: 25 kilovolt, 1/30ns (waveform)
160
FIGURE 5
TYPICAL REVERSE VOLTAGE VS CAPACITANCE FOR PSMS05
120
C - Capacitance - pF
80
40
0
0
1
2
3
V
R
- Reverse Voltage - Volts
4
5
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APPLICATION NOTE
PSMS24C
The PSMS Series are TVS arrays designed to protect I/O or data lines from the damaging effects of ESD or EFT. This product series provides both
unidirectional and bidirectional protection, with a surge capability of 350 Watts P
PP
per line for an 8/20μs waveform and ESD protection > 25 kilovolts.
UNIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 1)
The PSMS Series provides up to four (4) lines of protection in a common-mode configuration as depicted in Figure 1.
Circuit connectivity is as follows:
✔
Line 1 is connected to Pin 1.
✔
Line 2 is connected to Pin 3.
✔
Line 3 is connected to Pin 4.
✔
Line 4 is connected to Pin 6.
✔
Pin 5 is connected to ground.
✔
Pin 2 is not connected.
BIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 2)
The PSMSxxC Series provides up to four (4) lines of protection in a common-mode
configuration as depicted in Figure 2.
Circuit connectivity is as follows:
✔
Line 1 is connected to Pin 1.
✔
Line 2 is connected to Pin 3.
✔
Line 3 is connected to Pin 4.
✔
Line 4 is connected to Pin 5.
✔
Pin 6 is connected to ground.
✔
Pin 2 is not connected.
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
Circuit board layout is critical for Electromagnetic
Compatibility (EMC) protection. The following
guidelines are recommended:
I/O PORT
Figure 1 - Unidirectional Configuration
Common-Mode I/O Port Protection
LINE 1
LINE 2
3
2
1
4
5
6
LINE 3
LINE 4
✔
The protection device should be placed near the
input terminals or connectors, the device will
divert the transient current immediately before it
can be coupled into the nearby traces.
The path length between the TVS device and
the protected line should be minimized.
Figure 2 - Bidirectional Configuration
Common-Mode I/O Port Protection
LINE 1
LINE 2
✔
✔
✔
3
I/O PORT
2
1
All conductive loops including power and ground
loops should be minimized.
The transient current return path to ground
should be kept as short as possible to reduce
parasitic inductance.
Ground planes should be used whenever
possible. For multilayer PCBs, use ground vias.
✔
4
5
6
LINE 3
LINE 4
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PSMS24C
SOT-23-6 PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
D
E
SOT-23-6
4
5
6
K
0° - 8°
PACKAGE DIMENSIONS
DIM
MILLIMETERS
MIN
MAX
2.80
1.50
0.90
0.30
0.85
0.90
0.09
2.60
0.0
0.30
3.05
1.75
1.30
0.40
1.05
1.45
0.20
3.00
0.15
0.60
3
2
1
L
B
M
J
INCHES
MIN
MAX
0.110
0.059
0.036
0.012
0.033
0.036
0.003
0.102
0.0
0.012
0.120
0.070
0.051
0.016
0.040
0.057
0.008
0.118
0.006
0.024
A
G
A
B
C
D
E
G
J
K
L
M
NOTES
C
MOUNTING PAD
TYPICAL
DIM Millimeters Inches
1
2
3
4
5
0.70
1.90
0.95
2.40
1.00
0.028
0.074
0.037
0.094
0.039
4
1. Dimensioning and tolerances per ANSI Y14.5M, 1985.
2. Controlling Dimension: Inches
3. Dimensions are exclusive of mold flash and metal burrs.
3
2
1
5
TAPE & REEL/BULK ORDERING NOMENCLATURE
1. Surface mount product is taped and reeled in accordance with EIA-481.
2. Suffix -T7 = 7 Inch Reel - 3,000 pieces per 8mm tape,
i.e.,
PSMS-T7
3. Suffix - LF = Lead-Free, Pure-Tin Plating,
i.e.,
PSMS-LF-T7.
Outline & Dimensions: Rev 3 - 3/08, 06013
Tape & Reel Specifications (Dimensions in millimeters)
Reel Dia.
178mm (7”)
Tape Width
8mm
A0
B0
K0
D
E
F
W
P0
P2
P
tmax
0.25
3.20 ± 0.10 3.20 ± 0.10 1.65 ± 0.10 1.50 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ±0.30 4.00 ±0.10 2.00 ±0.05 4.00 ±0.10
P0
t
D
P2
10 Pitches Cumulative
Tolerance on Tape. ± 0.2
E
Top cover tape
A0
K0
B0
Pin 1
Indicated
by Dot
F
W
P
User Direction of Feed
ProTek Devices
2929 South Fair Lane, Tempe, AZ 85282
Tel: 602-431-8101 Fax: 602-431-2288
E-Mail: sales@protekdevices.com
Web Site: www.protekdevices.com
www.protekdevices.com
COPYRIGHT © ProTek Devices 2007
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC).
DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is
the buyer’s and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or specifications of such
products.
05095.R6 3/08
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