PSMS05
thru
PSMS24C
STANDARD CAPACITANCE TVS ARRAY
105095.R6 3/08 www.protekdevices.com
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)
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
05095
PIN CONFIGURATIONS
SOT-23-6
UNIDIRECTIONAL
16
5
2
34
16
5
2
34
BIDIRECTIONAL
PSMS05
thru
PSMS24C
205095.R6 3/08 www.protekdevices.com
DEVICE CHARACTERISTICS
Note 1: Part numbers with an additional “C” suffix are bidirectional devices, i.e., PSMS05C.
Note 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.
Note 3: Bidirectional Only: Test between pin 5 to 1 or 3 or 4 or 6. Electrical characteristics apply in both directions.
Note 4: Unidirectional Only: Capacitance measured between pins 1, 3, 4, 6, to 2.
PART
NUMBER
(See Notes 1-3)
DEVICE
MARKING
MINIMUM
BREAKDOWN
VOLTAGE
@ 1mA
V(BR)
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@ IP = 1A
VC
VOLTS
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
@8/20μs
VC @ IPP
TYPICAL
CAPACITANCE
(See Note 4)
0V @ 1 MHz
Cj
pF
PSMS05
PSMS05C
PSMS12
PSMS12C
PSMS15
PSMS15C
PSMS24
PSMS24C
PRH
PRL
PRI
PRM
PRJ
PRN
PRK
PRO
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
150
150
80
80
50
50
40
40
MAXIMUM
LEAKAGE
CURRENT
@VWM
I
D
μA
20
20
1
1
1
1
1
1
RATED
STAND-OFF
VOLTAGE
VWM
VOLTS
5.0
5.0
12.0
12.0
15.0
15.0
24.0
24.0
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
Storage Temperature
SYMBOL VALUE
°C-55 to 150
UNITS
TSTG
PARAMETER
Peak Pulse Power (tp = 8/20μs) - See Figure 1 PPP 350 Watts
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
Operating Temperature TL-55 to 150 °C
0 5 10 15 20 25 30
t - Time - μs
0
20
40
60
80
100
120
IPP - Peak Pulse Current - % of IPP
TEST
WAVEFORM
PARAMETERS
tf = 8μs
td = 20μs
tfPeak Value IPP
e-t
td = t IPP/2
FIGURE 2
PULSE W A VE FORM
0.1 1 10 100 1,000 10,000
td - Pulse Duration - μs
350W 8/20μs Waveform
10
100
1,000
10,000
PPP - Peak Pulse Power - Watts
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
PSMS05
thru
PSMS24C
305095.R6 3/08 www.protekdevices.com
GRAPHS
Peak Pulse Power
8/20µs
Average Power
0 25 50 75 100 125 150
TL - Lead Temperature - °C
% Of Rated Power
100
80
60
40
20
0
FIGURE 3
POWER DERA TING CURVE
5 Volts per Division
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSMS05C
ESD Test Pulse: 25 kilovolt, 1/30ns (waveform)
0
10
20
30
40
FIGURE 5
TYPICAL REVERSE VOLT AGE VS CAPACIT ANCE FOR PSMS05
0 1 2 3 4 5
VR - Reverse Voltage - Volts
C - Capacitance - pF
0
40
80
120
160
PSMS05
thru
PSMS24C
405095.R6 3/08 www.protekdevices.com
APPLICATION NOTE
CIRCUIT BOARD LA YOUT RECOMMENDA TIONS
Circuit board layout is critical for Electromagnetic
Compatibility (EMC) protection. The following
guidelines are recommended:
✔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.
✔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.
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 PPP 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.
Figure 1 - Unidirectional Configuration
Common-Mode I/O Port Protection
31
56
2
4
LINE 1
LINE 2
LINE 3
LINE 4
I/O PORT
Figure 2 - Bidirectional Configuration
Common-Mode I/O Port Protection
31
56
2
4
LINE 1
LINE 2
LINE 3
LINE 4
I/O PORT
PSMS05
thru
PSMS24C
505095.R6 3/08 www.protekdevices.com
SOT-23-6 PACKAGE OUTLINE & DIMENSIONS
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.
ProTek Devices
2929 South Fair Lane, T empe, AZ 85282
T el: 602-431-8101 Fax: 602-431-2288
E-Mail: sales@protekdevices.com
Web Site: www.protekdevices.com
T APE & 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
4
3
2
1
5
D
E
K
456
321
A
G
C
L
BM
0° - 8°
J
A
B
C
D
E
G
J
K
L
M
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
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
DIM MIN MAX MIN MAX
MILLIMETERS INCHES
P ACKAGE DIMENSIONS
NOTES
1. Dimensioning and tolerances per ANSI Y14.5M, 1985.
2. Controlling Dimension: Inches
3. Dimensions are exclusive of mold flash and metal burrs.
P ACKAGE OUTLINE SOT-23-6
MOUNTING P AD
0.028
0.074
0.037
0.094
0.039
1
2
3
4
5
0.70
1.90
0.95
2.40
1.00
DIM Millimeters Inches
TYPICAL
Top cover tape
K0
tD
P0
P2
10 Pitches Cumulative
Tolerance on Tape. ± 0.2
A0
B0
P
E
F
W
User Direction of Feed
Pin 1
Indicated
by Dot
Tape & Reel Specifications (Dimensions in millimeters)
DE P0 tmaxFP2W
1.50 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ±0.30 4.00 ±0.10 2.00 ±0.05
P
4.00 ±0.10 0.25
A0 B0 K0Reel Dia. Tape Width
178mm (7”) 8mm 3.20 ± 0.10 3.20 ± 0.10 1.65 ± 0.10