1. Product profile
1.1 General description
Unidirectional ESD protection diode in a SOD523 plastic package designed to protect one
transmission or data line from the damage caused by ESD (Electro Static Discharge) and
other transients.
1.2 Features
■Unidirectional ESD protection of one line
■Max. peak pulse power: PPP = 330 W at tp = 8/20 µs
■Low clamping voltage: VCL = 20 V at IPP = 18 A
■Ultra low leakage current: IRM < 700 nA
■ESD protection > 23 kV
■IEC 61000-4-2, level 4 (ESD)
■IEC 61000-4-5 (surge); IPP = 18 A at tp = 8/20 µs.
1.3 Applications
■Computers and peripherals
■Communication systems
■Audio and video equipment
■Data lines
■CAN bus protection.
1.4 Quick reference data
PESDxS1UB series
ESD protection diodes in SOD 523 package
Rev. 01 — 14 June 2004 Product data sheet
Table 1: Quick reference data
Symbol Parameter Conditions Value Unit
VRWM reverse standoff voltage
PESD3V3S1UB 3.3 V
PESD5V0S1UB 5 V
PESD12VS1UB 12 V
PESD15VS1UB 15 V
PESD24VS1UB 24 V
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 2 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
2. Pinning information
[1] The marking bar indicates the cathode.
3. Ordering information
4. Marking
Cddiode capacitance VR = 0 V; f = 1 MHz
PESD3V3S1UB 207 pF
PESD5V0S1UB 152 pF
PESD12VS1UB 38 pF
PESD15VS1UB 32 pF
PESD24VS1UB 23 pF
number of protected
lines 1
Table 1: Quick reference data
…continued
Symbol Parameter Conditions Value Unit
Table 2: Discrete pinning
Pin Description Simplified outline Symbol
1 cathode [1]
2 anode 12
Top view
sym035
12
Table 3: Ordering information
Type number Package
Name Description Version
PESDxS1UB SC -79 plastic surface mounted package; 2 leads SOD523
Table 4: Marking
Type number Marking code
PESD3V3S1UB N1
PESD5V0S1UB N2
PESD12VS1UB N3
PESD15VS1UB N4
PESD24VS1UB N5
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 3 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
5. Limiting values
[1] Non-repetitive current pulse 8/20 µs exponentially decay waveform; see Figure 1.
[1] Device stressed with ten non-repetitive Electro Static Discharge (ESD) pulses; see Figure 2.
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
PPP peak pulse power 8/20 µs[1]
PESD3V3S1UB - 330 W
PESD5V0S1UB - 260 W
PESD12VS1UB - 180 W
PESD15VS1UB - 160 W
PESD24VS1UB - 160 W
IPP peak pulse current 8/20 µs[1]
PESD3V3S1UB - 18 A
PESD5V0S1UB - 15 A
PESD12VS1UB - 5 A
PESD15VS1UB - 5 A
PESD24VS1UB - 3 A
Tjjunction temperature - 150 °C
Tamb operating ambient
temperature −65 +150 °C
Tstg storage temperature −65 +150 °C
Table 6: ESD maximum ratings
Symbol Parameter Conditions Min Max Unit
ESD electrostatic discharge
capability IEC 61000-4-2
(contact discharge) [1]
PESD3V3S1UB - 30 kV
PESD5V0S1UB - 30 kV
PESD12VS1UB - 30 kV
PESD15VS1UB - 30 kV
PESD24VS1UB - 23 kV
PESDxS1UB series HBM MIL-STD883 - 10 kV
Table 7: ESD standards compliance
ESD Standard Conditions
IEC 61000-4-2, level 4 (ESD) > 15 kV (air); > 8 kV (contact)
HBM MIL-STD883, class 3 > 4 kV
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 4 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
Fig 1. 8/20 µs pulse waveform according to
IEC 61000-4-5. Fig 2. Electro Static Discharge (ESD) pulse waveform
according to IEC 61000-4-2.
t (µs)
0403010 20
001aaa630
40
80
120
Ipp
(%)
0
e−t
100 % Ipp; 8 µs
50 % Ipp; 20 µs
001aaa631
Ipp
100 %
90 %
t
30 ns 60 ns
10 %
tr = 0.7 to 1 ns
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 5 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
6. Characteristics
Table 8: Characteristics
T
amb
= 25
°
C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
VRWM reverse standoff voltage
PESD3V3S1UB - - 3.3 V
PESD5V0S1UB - - 5 V
PESD12VS1UB - - 12 V
PESD15VS1UB - - 15 V
PESD24VS1UB - - 24 V
IRM reverse leakage current see Figure 7
PESD3V3S1UB VRWM = 3.3 V - 0.7 2 µA
PESD5V0S1UB VRWM = 5 V - 0.1 1 µA
PESD12VS1UB VRWM = 12 V - < 1 50 nA
PESD15VS1UB VRWM = 15 V - < 1 50 nA
PESD24VS1UB VRWM = 24 V - < 1 50 nA
VBR breakdown voltage IR = 5 mA
PESD3V3S1UB 5.2 5.6 6.0 V
PESD5V0S1UB 6.4 6.8 7.2 V
PESD12VS1UB 14.7 15.0 15.3 V
PESD15VS1UB 17.6 18.0 18.4 V
PESD24VS1UB 26.5 27.0 27.5 V
Cddiode capacitance VR = 0 V; f = 1 MHz;
see Figure 5 and 6
PESD3V3S1UB - 207 300 pF
PESD5V0S1UB - 152 200 pF
PESD12VS1UB - 38 75 pF
PESD15VS1UB - 32 70 pF
PESD24VS1UB - 23 50 pF
V(CL)R clamping voltage [1]
PESD3V3S1UB IPP = 1 A - - 7 V
IPP = 18 A - - 20 V
PESD5V0S1UB IPP = 1 A - - 9 V
IPP = 15 A - - 20 V
PESD12VS1UB IPP = 1 A - - 19 V
IPP = 5A - - 35 V
PESD15VS1UB IPP = 1 A - - 23 V
IPP = 5 A - - 40 V
PESD24VS1UB IPP = 1 A - - 36 V
IPP = 3 A - - 70 V
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 6 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
[1] Non-repetitive current pulse 8/20 µs exponentially decay waveform; see Figure 1.
Rdiff differential resistance
PESD3V3S1UB IR = 1 mA - - 400 Ω
PESD5V0S1UB IR = 1 mA - - 80 Ω
PESD12VS1UB IR = 1 mA - - 200 Ω
PESD15VS1UB IR = 1 mA - - 225 Ω
PESD24VS1UB IR = 0.5 mA - - 300 Ω
Table 8: Characteristics
…continued
T
amb
= 25
°
C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 7 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
Tamb = 25 °C
tp = 8/20 µs exponentially decay waveform,
see Figure 1.
(1) PESD3V3S1UB and PESD5V0S1UB.
(2) PESD12VS1UB, PESD15VS1UB; PESD24VS1UB.
Fig 3. Peak pulse power dissipation as a function of
pulse time; typical values. Fig 4. Relative variation of peak pulse power as a
function of junction temperature; typical
values.
f = 1 MHz; Tamb = 25 °C
(1) PESD3V3S1UB.
(2) PESD5V0S1UB.
f = 1 MHz; Tamb = 25 °C
(1) PESD12VS1UB.
(2) PESD15VS1UB.
(3) PESD24VS1UB.
Fig 5. Diode capacitance as a function of reverse
voltage; typical values. Fig 6. Diode capacitance as a function of reverse
voltage; typical values.
001aaa147
103
102
104
Ppp
(W)
10
tp (µs)
110
4
103
10 102
(1)
(2)
Tj (°C)
0 20015050 100
001aaa193
0.4
0.8
1.2
Ppp
0
Ppp(25˚C)
VR (V)
054231
001aaa148
120
160
80
200
240
Cd
(pF)
40
(1)
(2)
VR (V)
0252010 155
001aaa149
20
30
10
40
50
Cd
(pF)
0
(1)
(3)
(2)
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 8 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
(1) PESD3V3S1UB; VRWM = 3.3 V.
PESD5V0S1UB; VRWM = 5 V.
IR is less than 10 nA at 150 °C for:
PESD12VS1UB; VRWM = 12 V.
PESD15VS1UB; VRWM = 15 V.
PESD24VS1UB; VRWM = 24 V.
Fig 7. Relative variation of reverse leakage current as a function of junction temperature; typical values.
001aaa270
1
10
10−1
Tj (°C)
−100 150100050−50
IR
IR(25˚C)
(1)
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 9 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
Fig 8. ESD clamping test set-up and waveforms.
006aaa001
50 Ω
RZ
CZ1
2
D.U.T.: PESDxS1UB
vertical scale = 200 V/div
horizontal scale = 50 ns/div
unclamped +1 kV ESD voltage waveform
(IEC61000-4-2 network) clamped +1 kV ESD voltage waveform
(IEC61000-4-2 network)
unclamped −1 kV ESD voltage waveform
(IEC61000-4-2 network) clamped −1 kV ESD voltage waveform
(IEC61000-4-2 network)
vertical scale = 20 V/div
horizontal scale = 50 ns/div
vertical scale = 200 V/div
horizontal scale = 50 ns/div vertical scale = 10 V/div
horizontal scale = 50 ns/div
GND
GND
GND
GND
450 ΩRG 223/U
50 Ω coax
ESD TESTER
IEC 61000-4-2 network
CZ = 150 pF; RZ = 330 Ω
4 GHz DIGITAL
OSCILLOSCOPE
10×
ATTENUATOR
GND
GND
GND
GND
PESD24VS1UB
PESD15VS1UB
PESD12VS1UB
PESD5V0S1UB
PESD3V3S1UB
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 10 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
7. Application information
The PESDxS1UB series is designed for unidirectional protection of one single data line
from the damage caused by ESD (Electro Static Discharge) and Surge Pulses. The
PESDxS1UB series may be used on lines where the signal polarity is above or below
ground. The PESDxS1UB series provides a surge capability of up to 330 Watts per line for
a 8/20 µs waveform.
Circuit board layout and protection device placement:
Circuit board layout is critical for the suppression of ESD, EFT and Surge transients.
The following guidelines are recommended:
1. Place the protection device as close to the input terminal or connector as possible.
2. The path length between the protection device and the protected line should be
minimized.
3. Keep parallel signal paths to a minimum.
4. Avoid running protection conductors in parallel with unprotected conductor.
5. Minimize all printed-circuit board conductive loops including power and ground loops.
6. Minimize the length of the transient return path to ground.
7. Avoid using shared transient return paths to a common ground point.
8. Ground planes should be used whenever possible. For multilayer printed-circuit
boards, use ground vias.
Fig 9. Unidirectional protection of one line.
006aaa002
ground
line to be protected
(positive signal polarity)
PESDxS1UB
uni-directional protection of one line
ground
line to be protected
(negative signal polarity)
PESDxS1UB
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 11 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
8. Package outline
Fig 10. Package outline.
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
SOD523 SC-79 98-11-25
02-12-13
Plastic surface mounted package; 2 leads SOD523
0 0.5 1 mm
scale
D
12
HE
Ebp
A
c
vMA
A
UNIT bpcDEv
mm
AH
E
DIMENSIONS (mm are the original dimensions)
Note
1. The marking bar indicates the cathode.
(1) 0.34
0.26 0.17
0.11 0.1
0.85
0.75
1.25
1.15
0.65
0.58 1.65
1.55
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 12 of 15
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
9. Packing information
[1] For further information see Section 14.
Table 9: Possible packing methods
The indicated -xxx are the last three digits of the 12 NC ordering code.
[1]
Type number Package Description Packing quantity
3000 10000
PESD3V3S1UB SOD523 4 mm pitch, 8 mm tape and reel −115 −135
PESD5V0S1UB SOD523 4 mm pitch, 8 mm tape and reel −115 −135
PESD12VS1UB SOD523 4 mm pitch, 8 mm tape and reel −115 −135
PESD15VS1UB SOD523 4 mm pitch, 8 mm tape and reel −115 −135
PESD24VS1UB SOD523 4 mm pitch, 8 mm tape and reel −115 −135
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 13 of 15
10. Revision history
Table 10: Revision history
Document ID Release date Data sheet status Change notice Order number Supersedes
PESDxS1UB_series_1 20040614 Product data - 9397 750 13313 -
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
9397 750 13313 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 01 — 14 June 2004 14 of 15
11. Data sheet status
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at
URL http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
12. Definitions
Short-form specification — The data in a short-form specification is
extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with
the Absolute Maximum Rating System (IEC 60134). Stress above one or
more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any
other conditions above those given in the Characteristics sections of the
specification is not implied. Exposure to limiting values for extended periods
may affect device reliability.
Application information — Applications that are described herein for any
of these products are for illustrative purposes only. Philips Semiconductors
make no representation or warranty that such applications will be suitable for
the specified use without further testing or modification.
13. Disclaimers
Life support — These products are not designed for use in life support
appliances, devices, or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors
customers using or selling these products for use in such applications do so
at their own risk and agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to
make changes in the products - including circuits, standard cells, and/or
software - described or contained herein in order to improve design and/or
performance. When the product is in full production (status ‘Production’),
relevant changes will be communicated via a Customer Product/Process
Change Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no
license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are
free from patent, copyright, or mask work right infringement, unless otherwise
specified.
14. Contact information
For additional information, please visit: http://www.semiconductors.philips.com
For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
Level Data sheet status[1] Product status[2] [3] Definition
I Objective data Development This data sheet contains data from the objective specification for product development. Philips
Semiconductors reserves the right to change the specification in any manner without notice.
II Preliminary data Qualification This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III Product data Production This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
© Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights. Date of release: 14 June 2004
Document order number: 9397 750 13313
Published in The Netherlands
Philips Semiconductors PESDxS1UB series
ESD protection diodes in SOD 523 package
15. Contents
1 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 General description. . . . . . . . . . . . . . . . . . . . . . 1
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.4 Quick reference data. . . . . . . . . . . . . . . . . . . . . 1
2 Pinning information. . . . . . . . . . . . . . . . . . . . . . 2
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4 Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 5
7 Application information. . . . . . . . . . . . . . . . . . 10
8 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Packing information. . . . . . . . . . . . . . . . . . . . . 12
10 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 13
11 Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 14
12 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
14 Contact information . . . . . . . . . . . . . . . . . . . . 14
