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AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 1 - DESCRIPTION FEATURES 174S-04F is a design which includes ESD rated diode arrays to protect high- speed data interfaces. The 174S-04F has been specifically designed to protect sensitive components which are connected to data and transmission lines from over -voltage caused by Electrostatic Discharging (ESD), Electrical Fast Transients (EFT), Lightning, and Cable Discharge Event (CDE). 174S-04F is a unique design which includes ESD rated, ultra -low capacitance steering diodes and a unique design of clamping cell which is an equivalent TVS diode in a single package. During transient conditions, the steering diodes direct the transient to either the internal ESD line or to ground line. The internal unique design of clamping cell prevents over-voltage on the internal ESD line and on the I/O line, which is protecting any downstream components. 174S-04F may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ± 8kV contact discharge). 174S-04F is available in a DFN10 package.  ESD protection for super speed differential signaling (above 10Gb/s) channels  Protects four I/O lines  Provide transient protection for each line to IEC 61000-4-2 (ESD) ±15kV (air), ±12kV (contact) IEC 61000-4-4 (EFT) 30A (5/50ns) IEC 61000-4-5 (Lightning) 4A (8/20us)  For low operating voltage of 1.5V and below  Ultra-low capacitance: 0.29pF typical  Fast turn-on and ultra-low clamping voltage  Array of ESD rated diodes with internal equivalent TVS (Transient Voltage Suppression) diode  Solid-state silicon-avalanche and active circuit triggering technology  Green part  Available in a DFN10 package. ORDERING INFORMATION APPLICATION Package Type Part Number DFN10 174S-04F Note SPQ: 3,000pcs/Reel AiT provides all RoHS Compliant Products  USB3.1 and USB3.0 interfaces  Thunderbolt interface  DisplayPort interface  SATA and eSATA interface  V-By-One interface  Consumer electronics

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 2 - PIN DESCRIPTION Top View Pin # Symbol Function

1 Line-1 ESD-Protected Channel

2 Line-2 ESD-Protected Channel

3 GND Ground

4 Line-3 ESD-Protected Channel

5 Line-4 ESD-Protected Channel

6 NC No Connection

7 NC No Connection

8 GND Ground

9 NC No Connection

10 NC No Connection

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 3 - ABSOLUTE MAXIMUM RATINGS TA= 25℃, unless otherwise specified IPP, Peak Pulse Current (tp =8/20μs) 4A VDC, Operating Voltage (I/O pin-GND) 1.65V VESD-1, ESD per IEC 61000-4-2 (Air) VESD-2, ESD per IEC 61000-4-2 (Contact) ±15kV ±12kV TSOL, Lead Soldering Temperature 260℃ (10 sec.) TOP, Operating Temperature -55℃ ~ +125℃ TSTO, Storage Temperature -55℃ ~ +150℃ Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

TA = 25℃, unless otherwise noted Parameter Symbol Condition Min Typ Max Unit Reverse Stand-Off Voltage VRWM Pin-1,-2,-4,-5 to pin-3,-8, T=25℃. - - 1.5 V Channel Leakage Current ICH-Leak VPin-1,-2,-4,-5 = 1.5V, VPin-3,-8 = 0V, T=25℃. - - 1 µA Reverse Breakdown Voltage VBV IBV = 1mA, T=25℃, Pin-1,-2,-4,-5 to pin-3,-8. 5 - 8 V Forward Voltage VF IF = 15mA, T=25℃, pin-3,-8 to pin-1,-2,-4,-5. - 0.9 1.1 V ESD Clamping VoltageNOTE1 VCL-ESD IEC 61000-4-2 +8kV (ITLP = 16A), Contact mode, T=25℃, any I/O pin to GND. - 4.3 - V ESD Dynamic Turn-on Resistance Rdynamic Contact mode, any I/O pin to GND. - 0.19 - Ω Channel Input Capacitance CIN Vpin-3,-8 = 0V, VIN = 1.0V, f = 1MHz, T=25℃, any I/O pin to GND. - 0.29 0.34 pF Channel to Channel Input Capacitance CCROSS Vpin-3,-8 = 0V, VIN = 1.0V, f = 1MHz, T=25℃, between I/O pins. - 0.05 0.1 pF NOTE1: ESD Clamping Voltage was measured by Transmission Line Pulsing (TLP) System. TLP conditions: Z0= 50Ω, tp= 100ns, tr= 1ns.

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 4 - TYPICAL CHARACTERISTICS 1. Typical Variation of CIN vs. VIN 2. Typical Variation of CI/O-to-I/O vs. VIN 3. Transmission Line Pulsing (TLP) Measurement 4. Insertion Loss SDD 5. Analog Cross Talk

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 5 - CIRCUIT DIAGRAM

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 6 -

APPLICATION INFORMATION

The 174S-04F is designed to protect four data lines from transient over -voltage (such as ESD stress pulse). The device connection of 174S -04F is shown in the Fig. 1. In Fig. 1, the four protected data lines are connected to the ESD protection pins (pin1, pin2, pin4, and pi n5) of 174S -04F. The ground pins (pin3 and pin8) of 174S-04F are the negative reference pins. These pins should be directly connected to the GND rail of PCB (Printed Circuit Board). To get minimum parasitic inductance, the path length should be kept as short as possible. 174S-04F can provide ESD protection for 4 I/O signal lines simultaneously. If the number of I/O signal lines is less than 4, the unused I/O pins can be simply left as NC pins. Fig. 1 Data lines connection of 174S-04F.

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 7 - Fig. 2 shows the USB3.1 (10 Gb/s) eye diagrams with and without 174S -04F. Due to the ultra- low capacitance, 174S-04F can be used for USB3.1 application. Without 174S-04F With 174S-04F Fig. 2 USB3.1 (10Gb/s) eye diagrams with and without 174S-04F.

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 8 -

PACKAGE INFORMATION

Dimension in DFN10 (Unit: mm) Symbol Min Max A 0.400 0.550 A1 - 0.050 A3 0.152REF D 2.450 2.550 E 0.950 1.050 D1 0.350 0.450 E1 0.350 0.450 b 0.150 0.250 e 0.500 BSC L1 0.075 REF L2 0.050 REF b2 0.200 0.300 L 0.350 0.450

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 9 - LAND LAYOUT Index Millimeter Inches A 0.875 0.034 B 0.20 0.008 C 0.50 0.02 C1 1.00 0.039 D 0.25 0.01 D1 0.4 0.016 E 0.675 0.027 F 1.55 0.061 Notes: This LAND LAYOUT is for reference purposes only. Please consult your manufacturing partners to ensure your company’s PCB design guidelines are met.

AiT Semiconductor Inc. www.ait-ic.com 174S-04F U LT R A-LOW CAPACITANCE ESD PROTECTION ARRAY FOR HIGH-SPEED I/O PORT REV1.0 - DEC 2019 RELEASED - - 10 - IMPORTANT NOTICE AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of death, personal injury, or server property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. AiT Semiconductor Inc . assumes to no liability to customer product design or application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.