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PESD12VS1UB

ESD protection diode in SOD523 package

29 November 2018 Product data sheet

1. General description

Unidirectional ElectroStatic Discharge (ESD) protection diode in a SOD523 plastic package

designed to protect one transmission or data line from the damage caused by ESD and other

transients.

2. Features and benefits

•Unidirectional ESD protection of one line

•Low clamping voltage: VCL = 35 V at IPPM = 5 A

•ESD protection > 30 kV

•IEC 61000-4-5 (surge); IPPM = 5 A at tp = 8/20 µs

3. Application information

•Computers and peripherals

•Communication systems

•Audio and video equipment

•Data lines

•CAN bus protection

4. Quick reference data

Table 1. Quick reference data

Symbol Parameter Conditions Min Typ Max Unit

VRWM reverse standoff

voltage

Tamb = 25 °C - - 12 V

Cddiode capacitance f = 1 MHz; VR = 0 V; Tamb = 25 °C - 38 75 pF

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

5. Pinning information

Table 2. Pinning information

Pin Symbol Description Simplified outline Graphic symbol

1 K cathode[1]

2 A anode

SOD523

sym035

1 2

[1] The marking bar indicates pin 1.

6. Ordering information

Table 3. Ordering information

PackageType number

Name Description Version

PESD12VS1UB SOD523 plastic, surface-mounted package; 2 leads; 1.2 mm x 0.8 mm x

0.6 mm body

SOD523

7. Marking

Table 4. Marking codes

Type number Marking code

PESD12VS1UB N3

Product data sheet 29 November 2018 2 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

8. Limiting values

Table 5. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol Parameter Conditions Min Max Unit

PPPM rated peak pulse power tp = 8/20 µs [1] - 180 W

IPPM rated peak pulse current tp = 8/20 µs [1] - 5 A

Tjjunction temperature - 150 °C

Tamb ambient temperature -55 150 °C

Tstg storage temperature -65 150 °C

ESD maximum ratings

IEC 61000-4-2 (contact discharge) [2] - 30 kVVESD electrostatic discharge

voltage HBM MIL-STD883 - 10 kV

[1] Non-repetitive current pulse 8/20 µs exponentially decay waveform.

[2] Device stressed with ten non-repetitive ESD pulses.

t (µs)

0 403010 20

001aaa630

120

IPP

(%)

e-t

100 % IPP; 8 µs

50 % IPP; 20 µs

Fig. 1. 8/20 µs pulse waveform according to

IEC 61000-4-5

001aaa631

IPP

100 %

90 %

30 ns

60 ns

10 %

tr = 0.6 ns to 1 ns

Fig. 2. ESD pulse waveform according to IEC

61000-4-2

Product data sheet 29 November 2018 3 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

9. Characteristics

Table 6. Characteristics

Symbol Parameter Conditions Min Typ Max Unit

VRWM reverse standoff

voltage

Tamb = 25 °C - - 12 V

VBR breakdown voltage IR = 5 mA; Tamb = 25 °C 14.7 15 15.3 V

IRM reverse leakage current VRWM = 12 V; Tamb = 25 °C - 1 50 nA

Cddiode capacitance f = 1 MHz; VR = 0 V; Tamb = 25 °C - 38 75 pF

IPPM = 1 A; Tamb = 25 °C [1] - - 19 VVCL clamping voltage

IPPM = 5 A; Tamb = 25 °C [1] - - 35 V

rdif differential resistance IR = 1 mA; Tamb = 25 °C - - 200 Ω

[1] Non-repetitive current pulse 8/20 µs exponentially decay waveform.

aaa-028901

103

102

104

Ppp

(W)

tp (ms)

1 104

103

10 102

Tamb = 25 °C

tp = 8/20 µs exponentially decay waveform.

Fig. 3. Peak pulse power dissipation as a function of

pulse time; typical values

Tj (°C)

0 20015050 100

001aaa193

0.4

0.8

1.2

PPP

PPP(25°C)

Fig. 4. Relative variation of peak pulse power as a

function of junction temperature; typical values

Product data sheet 29 November 2018 4 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

VR (V)

0 252010 155

aaa-028904

(pF)

f = 1 MHz; Tamb= 25 °C

Fig. 5. Diode capacitance as a function of reverse

voltage; typical values

aaa-029083

10-1

Tj (°C)

-100 1501000 50-50

IR(25°C)

IR is less than 10 nA at 150 °C

VRWM = 12 V

Fig. 6. Relative variation of reverse leakage current

as a function of junction temperature; typical

values

Product data sheet 29 November 2018 5 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

aaa-029002

50 Ω

DUT: PESD12VS1UB

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 = 200 V/div

horizontal scale = 50 ns/div vertical scale = 10 V/div

horizontal scale = 50 ns/div

GND

RG 223/U

50 Ω coax

ESD TESTER

IEC 61000-4-2 network

CZ = 150 pF; RZ = 330 Ω

4 GHz DIGITAL

OSCILLOSCOPE

40 dB

ATTENUATOR

GND

vertical scale = 20 V/div

horizontal scale = 50 ns/div

Fig. 7. ESD clamping test setup and waveforms

Product data sheet 29 November 2018 6 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

10. Application information

The device is designed for unidirectional protection of one single data line from the damage caused

by ESD and surge pulses. The device may be used on lines where the signal polarity is above or

below ground. It provides a surge capability of up to 180 W per line for a 8/20 µs waveform.

aaa-002440

GND

line to be protected

(positive signal polarity)

ESD protection diode

unidirectional protection of one line

GND

line to be protected

(negative signal polarity)

ESD protection diode

Fig. 8. Unidirectional protection of one line

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 device as close to the input terminal or connector as possible.

2. Minimize the path length between the device and the protected line.

3. Keep parallel signal paths to a minimum.

4. Avoid running protected conductors in parallel with unprotected conductors.

5. Minimize all Printed-Circuit Board (PCB) 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. Use ground planes whenever possible. For multilayer PCBs, use ground vias.

11. Package outline

02-12-13Dimensions in mm

1.65

1.55

1.25

1.15

0.17

0.11

0.34

0.26

0.65

0.58

0.85

0.75

Fig. 9. Package outline SOD523

Product data sheet 29 November 2018 7 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

12. Soldering

0.6

(2×)

0.5

(2×)

2.15

1.4

0.4

(2×)

0.5

(2×)

1.2

solder lands

solder resist

occupied area

solder paste

sod523_fr

Dimensions in mm

Fig. 10. Reflow soldering footprint for SOD523

Product data sheet 29 November 2018 8 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

13. Revision history

Table 7. Revision history

Data sheet ID Release date Data sheet status Change notice Supersedes

PESD12VS1UB v.1 20181129 Product data sheet - PESDXS1UB_SERIES_2

Modifications: •The format of this data sheet has been redesigned to comply with the identity guidelines of

Nexperia.

•Legal texts have been adapted to the new company name where appropriate.

•Soldering section added.

•Application information: updated.

•Figure 9: updated.

•Tamb value updated from -65℃ to -55℃

PESDXS1UB_SERIES_2 20090824 Product data sheet - PESDXS1UB_SERIES_1

PESDXS1UB_SERIES_1 20040614 Product data sheet - -

Product data sheet 29 November 2018 9 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

14. Legal information

Data sheet status

Document status

[1][2]

Product

status [3]

Definition

Objective [short]

data sheet

Development This document contains data from

the objective specification for

product development.

Preliminary [short]

data sheet

Qualification This document contains data from

the preliminary specification.

Product [short]

data sheet

Production This document contains the product

specification.

[1] Please consult the most recently issued document before initiating or

completing a design.

[2] The term 'short data sheet' is explained in section "Definitions".

[3] The product status of device(s) described in this document may have

changed since this document was published and may differ in case of

multiple devices. The latest product status information is available on

the internet at https://www.nexperia.com.

Definitions

Draft — The document is a draft version only. The content is still under

internal review and subject to formal approval, which may result in

modifications or additions. Nexperia does not give any representations or

warranties as to the accuracy or completeness of information included herein

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Short data sheet — A short data sheet is an extract from a full data sheet

with the same product type number(s) and title. A short data sheet is

intended for quick reference only and should not be relied upon to contain

detailed and full information. For detailed and full information see the relevant

full data sheet, which is available on request via the local Nexperia sales

office. In case of any inconsistency or conflict with the short data sheet, the

full data sheet shall prevail.

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Limited warranty and liability — Information in this document is believed

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Quick reference data — The Quick reference data is an extract of the

product data given in the Limiting values and Characteristics sections of this

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products are for illustrative purposes only. Nexperia makes no representation

or warranty that such applications will be suitable for the specified use

without further testing or modification.

Customers are responsible for the design and operation of their applications

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Limiting values — Stress above one or more limiting values (as defined in

the Absolute Maximum Ratings System of IEC 60134) will cause permanent

damage to the device. Limiting values are stress ratings only and (proper)

operation of the device at these or any other conditions above those

given in the Recommended operating conditions section (if present) or the

Characteristics sections of this document is not warranted. Constant or

repeated exposure to limiting values will permanently and irreversibly affect

the quality and reliability of the device.

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In the event that customer uses the product for design-in and use in

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Notice: All referenced brands, product names, service names and

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Product data sheet 29 November 2018 10 / 11

Nexperia PESD12VS1UB

ESD protection diode in SOD523 package

Contents

1. General description...................................................... 1

2. Features and benefits.................................................. 1

3. Application information............................................... 1

4. Quick reference data.................................................... 1

5. Pinning information......................................................2

6. Ordering information....................................................2

7. Marking.......................................................................... 2

8. Limiting values............................................................. 3

9. Characteristics.............................................................. 4

10. Application information............................................. 7

11. Package outline.......................................................... 7

12. Soldering..................................................................... 8

13. Revision history..........................................................9

14. Legal information......................................................10

For more information, please visit: http://www.nexperia.com

For sales office addresses, please send an email to: salesaddresses@nexperia.com

Date of release: 29 November 2018

Product data sheet 29 November 2018 11 / 11