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onsemi SZESD7002WTT1G
- Part No.:
- SZESD7002WTT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
SZESD7002WTT1G.pdf
- Description:
- LOW CAPACITANCE ESD PROTECTION F
- Quantity:
- Payment:
- Shipping:
Inventory:1,425
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Product details
Overview
SZESD7002WTT1G from onsemi is a unidirectional ESD protection diode designed for high-speed differential data lines including USB 3.0 and HDMI. It delivers 0.3 pF typical capacitance (I/O to GND), 16 V working peak reverse voltage, and clamps ±8 kV IEC 61000-4-2 contact ESD events at ≤33.9 V (TLP, +16 A). Its SC-70 package enables matched trace routing for impedance control.
For engineers reviewing the SZESD7002WTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance matching (<10% mismatch), sub-34 V clamping under 16 A TLP stress, AEC-Q101 qualification for automotive use, and flow-through layout compatibility with high-speed differential pairs.
Technical Context
The SZESD7002WTT1G implements a single-channel unidirectional TVS structure optimized for signal integrity preservation. Its low 0.3–0.5 pF junction capacitance between I/O pins and GND minimizes loading on 5 Gb/s interfaces, while its 5 GHz 3dB bandwidth and <0.5 dB insertion loss at 5 GHz support full USB 3.0 compliance.
Clamping behavior is characterized using both IEC 61000-4-2 contact discharge and TLP methods, with verified clamping voltages of 31.2 V at +8 A and −10.8 V at −16 A. The device meets IEC 61000-4-2 Level 4 (±8 kV contact) and is rated for operation from −55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (I/O to GND) | 0.3 pF typical - preserves signal integrity on 5 Gb/s USB 3.0 links |
| Working Peak Reverse Voltage | 16 V - supports common 3.3 V and 5 V I/O rails without leakage |
| Clamping Voltage (+16 A TLP) | 33.9 V - limits transient overvoltage to protect downstream PHYs |
| IEC 61000-4-2 Rating | ±8 kV contact - meets industrial and automotive Level 4 immunity requirements |
| Junction Temp Range | −55 °C to +150 °C - qualified for under-hood automotive environments |
| 3dB Bandwidth | 5 GHz - maintains eye diagram integrity in high-speed serial links |
| Insertion Loss @ 5 GHz | 0.5 dB - negligible attenuation in HDMI 1.4/USB 3.0 channel paths |
Pinout & Package
Package: SC-70 (SOT-323), 3-pin surface-mount, flow-through configuration with cathode-cathode-anode pinout per Style 4 marking diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected I/O line 1; forms anode-cathode junction with Pin 3 |
| Pin 2 | Cathode | Connected to protected I/O line 2; enables matched dual-line protection in one package |
| Pin 3 | Anode | Common ground connection; completes ESD current path during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Capacitance matching | ≤10% mismatch between I/O1–GND and I/O2–GND - ensures balanced differential signaling |
| AEC-Q101 qualification | Automotive-grade reliability with PPAP capability - suitable for infotainment and ADAS data links |
| Flow-through layout | Linear pin arrangement (C-C-A) - enables straight PCB trace routing to minimize stubs and impedance discontinuities |
| Low clamping asymmetry | +33.9 V / −10.8 V clamping at ±16 A TLP - provides robust bidirectional transient suppression |
| Pb-free & RoHS | Halogen-free, lead-free SC-70 package - compliant with global environmental regulations |
Applications
| USB 3.0 Interface Protection | HDMI 1.4 Differential Pair Protection |
|---|---|
Use Scenario: Protecting SuperSpeed TX/RX differential lanes in laptop docking stations against ESD during hot-plug events. IC Role / Device Role / Timing Role: Unidirectional ESD clamp placed directly at connector, shunting transients before they reach the USB 3.0 controller PHY. Use Value: 0.3 pF capacitance and 5 GHz bandwidth preserve 5 Gb/s eye opening; ±8 kV IEC 61000-4-2 rating ensures system-level ESD compliance. | Use Scenario: Safeguarding HDMI source (GPU) and sink (display) ports in automotive head units exposed to user-handling ESD. IC Role / Device Role / Timing Role: Dual-line ESD suppressor mounted adjacent to HDMI Type A receptacle, with matched I/O capacitance preserving differential impedance. Use Value: Cathode-cathode-anode pinout allows symmetric PCB layout; AEC-Q101 qualification validates operation at 125 °C junction temperature. |
| LVDS Camera Link Protection | Automotive Infotainment Data Bus |
Use Scenario: Shielding 65 MHz LVDS clock and data pairs in rear-view camera modules from assembly-line ESD and field handling. IC Role / Device Role / Timing Role: Low-capacitance transient absorber placed at board edge, minimizing added jitter on timing-critical clock lines. Use Value: 0.5 dB insertion loss at 1 GHz ensures <1 ps RMS jitter contribution; −55 °C to +150 °C rating covers full automotive ambient range. | Use Scenario: Protecting MIPI D-PHY lanes between telematics control unit and touchscreen display in connected vehicles. IC Role / Device Role / Timing Role: High-speed ESD guard on differential data lanes operating up to 1.5 Gb/s, integrated into compact infotainment PCB stack-up. Use Value: SC-70 footprint saves space vs. discrete dual-diode solutions; matched capacitance prevents skew between D+ and D− signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7002WTT1G | Same die, non-automotive grade; no AEC-Q101 qualification | Targeted for industrial/commercial USB/HDMI designs without automotive certification | Select when AEC-Q101 is not required and cost sensitivity is higher |
| TPD2EUSB30DRYR | 0.5 pF typical capacitance; dual-channel unidirectional; 3.6 V VRWM | Better suited for 3.3 V systems; lower clamping but narrower voltage margin | Prefer for low-voltage USB 3.0 receivers where 16 V VRWM exceeds rail requirements |
Compared with ESD7002WTT1G and TPD2EUSB30DRYR, the SZESD7002WTT1G offers higher working voltage margin (16 V vs. 3.6 V), tighter capacitance matching (<10% vs. unspecified), and automotive qualification-making it optimal for 5 V automotive data buses requiring long-term reliability under thermal stress.
Availability
SZESD7002WTT1G is available at Aetrix Electronics and suitable for USB 3.0 interface protection, HDMI 1.4 differential pair safeguarding, and automotive infotainment data bus shielding requiring stable component supply across production lifecycles.
Supply support for SZESD7002WTT1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The SZESD7002WTT1G belongs to onsemi's high-speed ESD protection portfolio, engineered specifically for preserving signal integrity on >3 Gb/s differential interfaces while meeting stringent automotive reliability standards.
FAQ
What is the primary circuit role of the SZESD7002WTT1G in a USB 3.0 design?
The SZESD7002WTT1G serves as a unidirectional ESD transient voltage suppressor placed directly at the USB 3.0 connector. It clamps electrostatic discharges up to ±8 kV (IEC 61000-4-2 contact) to below 34 V, protecting the USB 3.0 PHY from damage while adding only 0.3 pF capacitance to each differential line-ensuring minimal impact on 5 Gb/s signal integrity. Its cathode-cathode-anode pinout supports matched layout for differential pair routing.
Does the SZESD7002WTT1G support bidirectional ESD protection?
No-the SZESD7002WTT1G is a unidirectional ESD protection diode. It conducts during positive transients (I/O-to-GND) but blocks negative transients beyond its reverse breakdown voltage. For full bidirectional protection, external circuitry or complementary devices are required. The datasheet specifies clamping only for positive TLP currents (+8 A, +16 A) and negative currents (−8 A, −16 A) with asymmetric voltage limits (e.g., −10.8 V at −16 A), confirming its unidirectional architecture with controlled reverse conduction.
How does the SC-70 package of the SZESD7002WTT1G improve high-speed PCB layout?
The SC-70 package of the SZESD7002WTT1G uses a flow-through pinout (cathode–cathode–anode) that enables straight, symmetric trace routing for differential pairs. This eliminates stubs and vias, maintaining consistent 90 Ω differential impedance across USB 3.0 or HDMI lanes. Its 2.2 mm × 1.35 mm footprint and low profile (0.95 mm max height) allow placement directly at connectors without compromising RF performance or board space-critical for dense automotive infotainment PCBs.
Is the SZESD7002WTT1G qualified for automotive applications?
Yes-the SZESD7002WTT1G is AEC-Q101 qualified and PPAP capable. It operates across −55 °C to +150 °C junction temperature, supports reflow soldering up to 260 °C (10 s), and is built in onsemi's automotive-certified manufacturing sites. The "SZ" prefix explicitly denotes compliance with automotive change control and site-specific requirements, making it suitable for ESD protection in ADAS camera links, infotainment displays, and telematics data buses.
What is the measured capacitance mismatch between the two I/O channels of the SZESD7002WTT1G?
The SZESD7002WTT1G guarantees ≤10% junction capacitance mismatch between I/O1-to-GND and I/O2-to-GND, measured at VR = 0 V and f = 1 MHz. This tight matching-verified in production test-is critical for maintaining common-mode rejection and minimizing skew in high-speed differential interfaces like USB 3.0 and HDMI. Typical mismatch is less than 5%, supporting robust eye diagram performance even at 5 Gb/s data rates.
SZESD7002WTT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V (Max)
- Voltage - Breakdown (Min):
- 16.5V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V (Typ)
- Current - Peak Pulse (10/1000µs):
- 16A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3 (SOT323)
SZESD7002WTT1G FAQ
1.How can I place an order for SZESD7002WTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD7002WTT1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SZESD7002WTT1G reliable?
The price and inventory of SZESD7002WTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD7002WTT1G is usually 5 days.
3.What payment methods are accepted for SZESD7002WTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD7002WTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD7002WTT1G?
SZESD7002WTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD7002WTT1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SZESD7002WTT1G?
For technical support, including SZESD7002WTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD7002WTT1G requirements.
6.How does Aetrix verify that SZESD7002WTT1G is sourced from the original manufacturer or authorized distributors?
All SZESD7002WTT1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SZESD7002WTT1G meets industry standards.
7.What is the process for return or replacement of SZESD7002WTT1G?
All SZESD7002WTT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD7002WTT1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SZESD7002WTT1G part is unused and in its original packaging.
Return procedure for SZESD7002WTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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