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PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
Rev. 01 -- 11 May 2005 Product data sheet
1. Product profile
1.1 General description
Ultra low capacitance ElectroStatic Discharge (ESD) protection diode in a SOT23 (TO-236AB) small SMD plastic package designed to protect one high-speed data line from the damage caused by ESD and other transients.
1.2 Features
s s s s Unidirectional ESD protection of one line Ultra low diode capacitance: Cd = 0.6 pF Max. peak pulse power: PPP up to 200 W Low clamping voltage s ESD protection > 23 kV s IEC 61000-4-2; level 4 (ESD) s IEC 61000-4-5; (surge)
1.3 Applications
s 10/100/1000 Ethernet s FireWire s Communication systems s Local Area Network (LAN) equipment s Computers and peripherals s High-speed datalines
1.4 Quick reference data
Table 1: Symbol VRWM Quick reference data Parameter reverse stand-off voltage PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT Cd
[1]
Conditions
Min -
Typ 0.6
Max 3.3 5.0 12 15 24 1.5
Unit V V V V V pF
diode capacitance
Measured from pin 1 to 2
f = 1 MHz; VR = 0 V
[1]
-
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
2. Pinning information
Table 2: Pin 1 2 3 Pinning Description cathode ESD protection diode cathode compensation diode common anode
1 2 1 2
006aaa441
Simplified outline
3
Symbol
3
3. Ordering information
Table 3: Ordering information Package Name PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT Description plastic surface mounted package; 3 leads Version SOT23 Type number
4. Marking
Table 4: Marking codes Marking code [1] *AP *AQ *AR *AS *AT Type number PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT
[1] * = -: made in Hong Kong * = p: made in Hong Kong * = t: made in Malaysia * = W: made in China
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
2 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
5. Limiting values
Table 5: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol PPP Parameter peak pulse power PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT IPP peak pulse current PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT Tj Tamb Tstg
[1]
Conditions 8/20 s
[1]
Min -
Max 80 80 200 200 200 5 5 5 5 3 150 +150 +150
Unit W W W W W A A A A A C C C
8/20 s
[1]
-65 -65
junction temperature ambient temperature storage temperature
Non-repetitive current pulse 8/20 s exponential decay waveform according to IEC 61000-4-5.
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
3 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
ESD maximum ratings Parameter electrostatic discharge voltage PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT PESDxU1UT HBM MIL-STD-883 Conditions IEC 61000-4-2 (contact discharge)
[1] [2]
Table 6: Symbol VESD
Min
Max
Unit
-
30 30 30 30 23 10
kV kV kV kV kV kV
[1] [2]
Device stressed with ten non-repetitive ESD pulses. Measured from pin 1 to 2
Table 7: Standard
ESD standards compliance Conditions > 15 kV (air); > 8 kV (contact) > 4 kV
IEC 61000-4-2; level 4 (ESD) HBM MIL-STD-883; class 3
001aaa631
120 IPP (%) 80 100 % IPP; 8 s
001aaa630
IPP 100 % 90 %
e-t 50 % IPP; 20 s
40
10 % tr = 0.7 ns to 1 ns 0 10 20 30 t (s) 40 30 ns 60 ns t
0
Fig 1. 8/20 s pulse waveform according to IEC 61000-4-5
Fig 2. ESD pulse waveform according to IEC 61000-4-2
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
4 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
6. Characteristics
Table 8: Characteristics Tamb = 25 C unless otherwise specified. Symbol VRWM Parameter reverse stand-off voltage PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT IRM reverse leakage current PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT VBR breakdown voltage PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT Cd VCL diode capacitance clamping voltage PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT rdif differential resistance PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT
[1] [2]
Conditions
Min -
Typ 0.25 0.03 <1 <1 <1 6.4 7.6 15.0 18.9 27.8 0.6 -
Max 3.3 5.0 12 15 24 2 1 50 50 50 6.9 8.2 16.7 20.3 30.3 1.5 9 20 12 21 23 39 28 53 40 76 400 80 200 225 300
Unit V V V V V A A nA nA nA V V V V V pF V V V V V V V V V V
VRWM = 3.3 V VRWM = 5.0 V VRWM = 12 V VRWM = 15 V VRWM = 24 V IR = 5 mA
[2]
5.8 7.0 14.2 17.1 25.4
f = 1 MHz; VR = 0 V IPP = 1 A IPP = 5 A IPP = 1 A IPP = 5 A IPP = 1 A IPP = 5 A IPP = 1 A IPP = 5 A IPP = 1 A IPP = 3 A IR = 1 mA
[2] [1] [2]
-
Non-repetitive current pulse 8/20 s exponential decay waveform according to IEC 61000-4-5. Measured from pin 1 to 2
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
9397 750 14912
Product data sheet
Rev. 01 -- 11 May 2005
5 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
I 10
006aaa442
IR IR(25C) VCL VBR VRWM IRM IR - P-N + V 1
IPP
006aaa407
10-1 -100
-50
0
50
100 Tj (C)
150
PESD3V3U1UT; PESD5V0U1UT IR is less than 10 nA at 150 C for: PESD12VU1UT; PESD15VU1UT; PESD24VU1UT
Fig 3. V-I characteristics
Fig 4. Relative variation of reverse leakage current as a function of junction temperature; typical values
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
6 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
7. Application information
The PESDxU1UT series is designed for protection of high-speed datalines from damage caused by ESD and surge pulses. PESDxU1UT devices combine an ESD protection diode and an ultra low capacitance compensation diode to ensure an effective device capacitance as low as 0.6 pF. The PESDxU1UT series provides a surge capability of up to 200 W per line for an 8/20 s waveform.
protected data line 2 n.c. 3 1 2 1 3 n.c. ground PESDxU1UT PESDxU1UT
006aaa443
Two PESDxU1UT devices in anti-parallel configuration provide ESD protection in a common-mode application. The two PESDxU1UT devices should be connected as follows: protected data line is connected to device 1 / pin 2 device 2 / pin 1 Ground is connected to device 1 / pin 1 device 2 / pin 2 pin 3 is not connected for both devices
Fig 5. Bi-directional ESD protection of one line, common mode
I/O 1 2 ETHERNET TRANSCEIVER n.c. 3 1 2 1 3 n.c.
I/O 2 PESDxU1UT PESDxU1UT
006aaa444
Two PESDxU1UT devices in anti-parallel configuration provide ESD protection in a differential-mode configuration as e.g. for Ethernet applications. The two PESDxU1UT should be connected as follows: I/O line 1 is connected to device 1 / pin 2 device 2 / pin 1 I/O line 2 is connected to device 1 / pin 1 device 2 / pin 2 pin 3 is not connected for both devices
Fig 6. Differential mode Ethernet protection
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
7 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
Circuit board layout and protection device placement Circuit board layout is critical for the suppression of ESD, Electrical Fast Transient (EFT) and surge transients. The following guidelines are recommended: 1. Place the PESDxU1UT as close to the input terminal or connector as possible. 2. The path length between the PESDxU1UT and the protected line should be minimized. 3. Keep parallel signal paths to a minimum. 4. Avoid running protected conductors in parallel with unprotected conductors. 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.
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
8 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
8. Test information
ESD TESTER RZ CZ D.U.T. (Device Under Test)
450
RG 223/U 50 coax
4 GHz DIGITAL OSCILLOSCOPE 10x ATTENUATOR
50
IEC 61000-4-2 network CZ = 150 pF; RZ = 330
vertical scale = 200 V/div horizontal scale = 50 ns/div
vertical scale = 20 V/div; horizontal scale = 50 ns/div PESD24VU1UT GND PESD15VU1UT GND PESD12VU1UT GND PESD5V0U1UT GND
GND GND unclamped +1 kV ESD voltage waveform (IEC 61000-4-2 network)
PESD3V3U1UT
clamped +1 kV ESD voltage waveform (IEC 61000-4-2 network)
GND
GND
vertical scale = 200 V/div horizontal scale = 50 ns/div unclamped -1 kV ESD voltage waveform (IEC 61000-4-2 network)
vertical scale = 20 V/div horizontal scale = 50 ns/div clamped -1 kV ESD voltage waveform (IEC 61000-4-2 network)
006aaa445
Fig 7. ESD clamping test set-up and waveforms
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
9 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
9. Package outline
3.0 2.8
3
1.1 0.9
0.45 0.15 2.5 1.4 2.1 1.2
1
2
1.9 Dimensions in mm
0.48 0.38
0.15 0.09 04-11-04
Fig 8. Package outline SOT23 (TO-236AB)
10. Packing information
Table 9: Packing methods The -xxx numbers are the last three digits of the 12NC ordering code. [1] Type number PESD3V3U1UT PESD5V0U1UT PESD12VU1UT PESD15VU1UT PESD24VU1UT
[1] For further information and the availability of packing methods, see Section 16.
Package SOT23
Description 4 mm pitch, 8 mm tape and reel
Packing quantity 3000 -215 10000 -235
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
10 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
11. Revision history
Table 10: Revision history Release date 20050511 Data sheet status Product data sheet Change notice Doc. number 9397 750 14912 Supersedes Document ID PESDXU1UT_SER_1
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
11 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
12. Data sheet status
Level I II Data sheet status [1] Objective data Preliminary data Product status [2] [3] Development Qualification Definition 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. 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. 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).
III
Product data
Production
[1] [2] [3]
Please consult the most recently issued data sheet before initiating or completing a design. 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. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
13. 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.
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.
15. Trademarks
Notice -- All referenced brands, product names, service names and trademarks are the property of their respective owners.
14. 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
16. 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
9397 750 14912
(c) Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 -- 11 May 2005
12 of 13
Philips Semiconductors
PESDxU1UT series
Ultra low capacitance ESD protection diode in SOT23 package
17. Contents
1 1.1 1.2 1.3 1.4 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General description. . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data. . . . . . . . . . . . . . . . . . . . . 1 Pinning information . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Application information. . . . . . . . . . . . . . . . . . . 7 Test information . . . . . . . . . . . . . . . . . . . . . . . . . 9 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10 Packing information. . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 11 Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 12 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Contact information . . . . . . . . . . . . . . . . . . . . 12
(c) Koninklijke Philips Electronics N.V. 2005
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: 11 May 2005 Document number: 9397 750 14912
Published in The Netherlands

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