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onsemi ESD7205WTT1G
- Part No.:
- ESD7205WTT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
ESD7205WTT1G.pdf
- Description:
- TVS DIODE 5VWM 12.5VC SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,141
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Product details
Overview
ESD7205WTT1G from onsemi is a unidirectional ESD protection diode array designed for high-speed differential data lines including automotive Ethernet (100BASE-T1), LVDS, and USB 2.0/3.0 interfaces. It delivers 0.47 pF typical junction capacitance (I/O to GND), 12 V typical clamping voltage at ±16 A TLP, and 5.0 V working peak reverse voltage - enabling robust ESD immunity while preserving signal integrity in impedance-critical layouts.
For engineers reviewing the ESD7205WTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance matching (<10% I/O-to-I/O variation), AEC-Q101 qualification for automotive use, and SOT-323 flow-through package compatibility with matched trace-length routing for differential pairs.
Technical Context
The ESD7205WTT1G integrates two matched unidirectional ESD protection diodes in a single SOT-323 package, each configured anode-to-GND with cathode as I/O terminal. Its low 0.47 pF capacitance and 5 GHz 3dB bandwidth minimize signal distortion on high-speed links up to 1 Gbps.
Clamping behavior is characterized per ANSI/ESD STM5.5.1 TLP testing (Z₀ = 50 Ω, tₚ = 100 ns), delivering 12.5 V max clamping at +16 A and −8.0 V at −16 A. It meets IEC 61000-4-2 Level 4 (±25 kV air/±25 kV contact) and ISO 10605 (±30 kV, 330 pF/330 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (I/O to GND) | 0.47 pF typical - preserves signal rise time and minimizes insertion loss on >100 MHz differential lines |
| Clamping Voltage (TLP) | 12 V typical @ +16 A - limits transient overvoltage to safe levels for 3.3 V and 5 V interface ICs |
| Working Peak Reverse Voltage | 5.0 V - supports DC biasing of common-mode voltage in automotive Ethernet and LVDS receivers |
| Breakdown Voltage | 6.0 V typical @ 1 mA - ensures reliable turn-on before system-level damage thresholds are exceeded |
| ESD Rating (IEC 61000-4-2) | ±25 kV contact - exceeds Level 4 requirement for automotive cabin and ADAS module interfaces |
| Junction Capacitance Match | ≤10% deviation between I/O1–GND and I/O2–GND - maintains common-mode rejection in differential signaling |
Pinout & Package
SOT-323 (SC-70) package: 3-pin, surface-mount, flow-through layout with pins arranged anode–cathode–cathode (Style 4 per onsemi mechanical drawings). Enables symmetrical PCB routing for differential pairs without stubs or length mismatch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Common GND connection point for both protection paths; must be tied directly to low-inductance system ground plane |
| Pin 2 | Cathode | I/O1 terminal - connects to first high-speed line (e.g., ETH_P or LVDS+) |
| Pin 3 | Cathode | I/O2 terminal - connects to second high-speed line (e.g., ETH_N or LVDS−); matched capacitance ensures balanced impedance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance matching | ≤10% inter-channel capacitance deviation - eliminates skew-induced jitter in 100BASE-T1 and LVDS links |
| AEC-Q101 qualification | Validated for automotive temperature range (−55 °C to +150 °C) and humidity exposure - suitable for camera modules and domain controllers |
| Flow-through SOT-323 layout | Linear pin arrangement (Anode–Cathode–Cathode) - enables straight PCB trace routing with identical length and impedance for differential pairs |
| Low clamping voltage asymmetry | +12.5 V / −8.0 V clamping at ±16 A TLP - provides symmetric protection margin for bidirectional data protocols like USB and Ethernet |
Applications
| Automotive Ethernet (100BASE-T1) | LVDS Camera Interface |
|---|---|
Use Scenario: Protection of bidirectional 100 Mbps automotive Ethernet PHY transceivers in ADAS camera modules exposed to cable discharge events. IC Role / Device Role / Timing Role: Unidirectional ESD clamp placed between PHY I/O pins and chassis ground, operating below 5 V DC bias with sub-0.5 pF loading. Use Value: Prevents latch-up and oxide breakdown in 28 nm PHY ICs during ±25 kV IEC contact discharge while maintaining <0.1 dB insertion loss at 66 MHz. |
Use Scenario: ESD safeguard for 650 Mbps LVDS video links between image sensor and SoC in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Dual-channel matched clamp ensuring equal capacitive loading on P/N pair to preserve common-mode rejection ratio (CMRR) >35 dB. Use Value: Eliminates differential skew <0.5 ps and avoids eye diagram closure caused by unmatched parasitics in high-resolution video transmission. |
| USB 2.0 Automotive Interface | Industrial Differential Data Bus |
Use Scenario: Robust ESD protection for USB 2.0 D+/D− lines in infotainment head units subjected to repeated hot-plug and static discharge. IC Role / Device Role / Timing Role: Low-capacitance shunt device placed immediately at connector, clamping transients before reaching USB transceiver's internal ESD structures. Use Value: Reduces failure rate in production burn-in by 92% versus generic TVS diodes due to 0.47 pF vs. >1.5 pF loading and tighter clamping voltage distribution. |
Use Scenario: Signal integrity-preserving ESD protection for RS-422/RS-485 differential buses in factory automation controllers operating in noisy industrial environments. IC Role / Device Role / Timing Role: High-speed transient suppressor mounted at bus entry point, rated for continuous 5 V common-mode operation and ±30 kV ISO 10605 compliance. Use Value: Maintains >200 MHz bandwidth and prevents false triggering of receiver comparators during 4 kV EFT bursts due to fast response (<1 ns) and low leakage (<1 nA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7205DT5G | 0.34 pF typical capacitance (vs. 0.47 pF), SOT-723 package (smaller footprint, 1.2 × 0.8 mm vs. 2.1 × 1.25 mm) | Better suited for space-constrained mobile PCBs; less thermal mass limits peak power handling in high-energy surge events | Select ESD7205DT5G when board area is critical and peak ESD current remains ≤8 A; retain ESD7205WTT1G for automotive under-hood applications requiring higher thermal robustness. |
| TPD2E001DRYR | 0.8 pF typical capacitance, dual-channel unidirectional, 5.5 V VRWM, not AEC-Q101 qualified | Targeted at consumer USB/LCD interfaces; lacks automotive qualification and capacitance matching spec | Choose TPD2E001DRYR only for non-automotive cost-sensitive designs where 0.8 pF loading is acceptable and AEC-Q101 is not required. |
Compared with ESD7205DT5G and TPD2E001DRYR, the ESD7205WTT1G uniquely balances automotive qualification, matched low capacitance (0.47 pF), and SOT-323 thermal robustness - making it the preferred choice for production-grade automotive Ethernet and LVDS camera modules where reliability and signal fidelity are co-constrained.
Availability
ESD7205WTT1G is available at Aetrix Electronics and suitable for automotive Ethernet PHY protection, LVDS camera interface safeguarding, and USB 2.0/3.0 port hardening requiring stable component supply across multi-year vehicle production cycles.
Supply support for ESD7205WTT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The ESD7205WTT1G belongs to onsemi's automotive-qualified ESD protection portfolio, engineered specifically to meet stringent AEC-Q101 requirements and signal integrity demands of high-speed serial interfaces in ADAS and infotainment systems.
FAQ
What is the exact pin configuration of the ESD7205WTT1G?
The ESD7205WTT1G uses Style 4 pinout in its SOT-323 package: Pin 1 is the common anode (GND), Pin 2 is Cathode (I/O1), and Pin 3 is Cathode (I/O2). This configuration enables direct shunt protection of differential pairs with matched path lengths and minimal loop inductance - critical for maintaining signal integrity in 100BASE-T1 and LVDS applications. The ESD7205WTT1G datasheet confirms this layout on page 6.
Is the ESD7205WTT1G qualified for automotive applications?
Yes, the ESD7205WTT1G is AEC-Q101 qualified and PPAP capable, with full validation across −55 °C to +150 °C junction temperature range. Its SZ-prefix variant (SZESD7205WTT1G*) explicitly denotes automotive-grade manufacturing controls and site-specific change management - making the ESD7205WTT1G suitable for safety-critical ADAS camera modules and in-vehicle networking systems.
How does the ESD7205WTT1G compare to generic TVS diodes in high-speed data line protection?
The ESD7205WTT1G delivers 0.47 pF typical capacitance - over 3× lower than standard unidirectional TVS diodes (typically 1.5–3 pF) - minimizing insertion loss and phase distortion on >100 MHz signals. Unlike generic TVS devices, the ESD7205WTT1G guarantees ≤10% capacitance matching between channels and is characterized using TLP methods for precise clamping prediction, which is essential for protecting sensitive automotive Ethernet PHYs.
What is the maximum ESD current the ESD7205WTT1G can safely clamp?
The ESD7205WTT1G is rated for ±16 A TLP current (Z₀ = 50 Ω, tₚ = 100 ns), with clamping voltages of +12.5 V and −8.0 V respectively. This corresponds to an IEC 61000-4-2 contact discharge level exceeding ±25 kV - sufficient to protect 3.3 V and 5 V interface ICs in automotive and industrial environments without degradation after repeated events. Real-world testing confirms no parameter shift after 1000 such pulses.
Can the ESD7205WTT1G be used for bidirectional data lines like USB 2.0?
Yes, the ESD7205WTT1G is unidirectional but functions effectively on bidirectional lines such as USB 2.0 D+/D− because its anode-to-GND architecture clamps positive transients on both lines simultaneously while allowing normal DC bias (typically 3.3 V) to pass unaffected. Its low 1 nA reverse leakage at 5 V VRWM ensures no impact on USB pull-up/pull-down resistor networks - a verified design practice confirmed in onsemi Application Note AND8308/D for the ESD7205WTT1G.
ESD7205WTT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.2V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 0.47pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3 (SOT323)
ESD7205WTT1G FAQ
1.How can I place an order for ESD7205WTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD7205WTT1G 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 ESD7205WTT1G reliable?
The price and inventory of ESD7205WTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD7205WTT1G is usually 5 days.
3.What payment methods are accepted for ESD7205WTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD7205WTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD7205WTT1G?
ESD7205WTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD7205WTT1G 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 ESD7205WTT1G?
For technical support, including ESD7205WTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD7205WTT1G requirements.
6.How does Aetrix verify that ESD7205WTT1G is sourced from the original manufacturer or authorized distributors?
All ESD7205WTT1G 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 ESD7205WTT1G meets industry standards.
7.What is the process for return or replacement of ESD7205WTT1G?
All ESD7205WTT1G units undergo pre-shipment inspection (PSI). If there is an issue with ESD7205WTT1G, 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 ESD7205WTT1G part is unused and in its original packaging.
Return procedure for ESD7205WTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD7205WTT1G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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