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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, 8/20s - Level 1(Line-Gnd) & Level 2(Line-Line)
SOT-23-6
FEATURES
350 Watts Peak Pulse Power per Line (tp=8/20s) 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: 260-270C 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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DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25C Unless Otherwise Specified
PARAMETER
Peak Pulse Power (tp = 8/20s) - See Figure 1 Operating Temperature Storage Temperature
SYMBOL
PPP TL TSTG
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
@ 25C Unless Otherwise Specified MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM LEAKAGE CURRENT TYPICAL CAPACITANCE (See Note 4)
MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ IP = 1A VC VOLTS
V WM VOLTS
@ 1mA V(BR) VOLTS
@8/20s VC @ IPP
@VWM ID A
0V @ 1 MHz Cj pF
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
PPP - Peak Pulse Power - Watts
FIGURE 1 PEAK PULSE POWER VS PULSE TIME
IPP - Peak Pulse Current - % of IPP
120 100 80 60 40 20 0 tf
FIGURE 2 PULSE WAVE FORM
Peak Value IPP TEST WAVEFORM PARAMETERS tf = 8s td = 20s
1,000 350W 8/20s Waveform
e-t
100
td = t I /2 PP
10 0.1
1
10 100 td - Pulse Duration - s
1,000
10,000
0
5
10
15 t - Time - s
20
25
30
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PSMS24C
GRAPHS
FIGURE 3 POWER DERATING CURVE
100 Peak Pulse Power 8/20s 80
% Of Rated Power
60
40
20 Average Power 0 0 25 50 75 100 125 TL - Lead Temperature - C 150
FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR PSMS05C
40
5 Volts per Division
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 VR - Reverse Voltage - Volts 4 5
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PSMS24C
APPLICATION NOTE
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 8/20s 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
6
5
4 K 0 - 8
PACKAGE DIMENSIONS DIM MILLIMETERS MIN MAX
2.80 1.50 0.90 0.35 0.85 1.70 0.90 0.09 2.60 0.20 TYP 0.35 3.05 1.75 1.30 0.50 1.05 2.10 1.45 0.20 3.00 0.20 TYP 0.55
3
2
1 L J B M
INCHES MIN MAX
0.110 0.059 0.036 0.014 0.033 0.067 0.036 0.003 0.102 0.007 TYP 0.014 0.120 0.070 0.051 0.020 0.040 0.083 0.057 0.008 0.118 0.007 TYP 0.022
F A
G
C
A B C D E F G J K L M
NOTES
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 2 - 10/05, 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
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COPYRIGHT (c) 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.
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