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onsemi ESD5Z3.3T5G
- Part No.:
- ESD5Z3.3T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
ESD5Z3.3T5G.pdf
- Description:
- TVS DIODE 3.3VWM 14.1VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:63,418
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Product details
Overview
ESD5Z3.3T5G from onsemi is a unidirectional ESD protection diode in SOD-523 package, designed to safeguard I/O lines against ±30 kV IEC 61000-4-2 contact ESD events, with 3.3 V working peak reverse voltage, 8.4 V minimum breakdown voltage, and clamping voltage of 14.1 V at 5 A pulse current. It serves as primary board-level transient suppression for high-speed data interfaces in space-constrained portable electronics.
For engineers reviewing the ESD5Z3.3T5G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping performance under 8/20 µs surge, sub-1 ns response time, <50 pA leakage at 3.3 V, IEC 61000-4-2 Level 4 compliance, and compatibility with automated SMT assembly at 260 °C reflow.
Technical Context
The ESD5Z3.3T5G operates as a unidirectional avalanche diode, conducting only during negative transients relative to cathode, with precise 3.3 V stand-off enabling direct placement on 3.3 V logic rails without false triggering. Its low 105 pF capacitance and fast <1 ns response preserve signal integrity on USB 2.0, HDMI, and SDIO lines.
It meets AEC-Q101 stress requirements when marked with SZ prefix, though ESD5Z3.3T5G itself is industrial-grade; clamping is characterized per IEC 61000-4-2 waveform using oscilloscope-based voltage-time capture, not DC approximation methods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage | 3.3 V - Matches standard 3.3 V I/O supply rails without forward conduction during normal operation |
| Clamping Voltage @ 5 A | 14.1 V - Limits transient overvoltage to safe level for downstream 16 V tolerant ICs |
| Breakdown Voltage Min | 5.0 V - Ensures reliable turn-on before damage threshold of protected circuitry |
| Capacitance @ 0 V | 105 pF - Low enough for <100 Mbps digital interfaces without signal degradation |
| ESD Rating (HBM) | ±16 kV - Exceeds Class 3 requirement, enabling robust handling in manufacturing environments |
| Leakage Current Max | 50 nA @ 3.3 V - Prevents measurable power drain on battery-powered sensor nodes |
| Response Time | <1 ns - Activates before most CMOS input structures experience gate oxide rupture |
Pinout & Package
SOD-523 package: 1.20 mm × 0.80 mm × 0.60 mm body, 0.7 mm max height, matte tin lead finish, MSL 1 rated, compatible with standard 260 °C Pb-free reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient Sink Terminal | Connected to protected I/O line; conducts ESD current to ground path during negative excursions |
| 2 (Anode) | Reference Terminal | Connected to system ground or low-impedance return plane; completes conduction path for clamping |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 Level 4 Compliance | Guarantees survivability against ±8 kV contact and ±15 kV air discharge in final system validation |
| Low Clamping Voltage | 14.1 V at 5 A enables protection of 15 V-rated interface transceivers without derating |
| Ultra-Small Footprint | 0.96 mm² area allows placement directly at connector or IC pad, minimizing trace inductance |
| Pb-Free & RoHS Compliant | Meets global environmental regulations and supports lead-free manufacturing processes |
Applications
| USB 2.0 Data Lines | HDMI DDC Channel |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+ and D− lines in smartphone docking stations against user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed within 2 mm of USB connector, sinking negative transients to ground. Use Value: 105 pF capacitance avoids signal rise-time degradation; 14.1 V clamping prevents PHY latch-up during ±8 kV contact discharge. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) I²C bus lines in set-top boxes exposed to frequent cable insertion/removal. IC Role / Device Role / Timing Role: Standoff-limited shunt device on 3.3 V DDC lines, activated only during ESD events above 5 V. Use Value: 50 nA leakage preserves I²C pull-up bias; 3.3 V VRWM ensures no DC loading on 3.3 V open-drain bus. |
| SD Card Interface | Industrial Sensor Node I/O |
Use Scenario: Shielding SDIO command and data lines in handheld medical imaging devices from electrostatic discharge during card swaps. IC Role / Device Role / Timing Role: Per-line ESD suppressor mounted adjacent to SD card slot, referenced to shared ground plane. Use Value: Sub-1 ns response prevents bit errors during hot-swap; 1.2 × 0.8 mm footprint fits tight PCB real estate near edge connector. | Use Scenario: Securing analog and digital I/O pins of low-power wireless sensor nodes deployed in factory-floor environments. IC Role / Device Role / Timing Role: Point-of-entry protection on 3.3 V GPIO and ADC input traces before ESD-sensitive front-end amplifiers. Use Value: 14.1 V clamping aligns with 16 V absolute maximum rating of op-amps; 0.7 mm height avoids mechanical interference with enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T1G | Same electrical specs; differs only in tape-and-reel quantity (3000 vs. 8000 units) | Identical use cases; T1G preferred for lower-volume prototyping or small-batch builds | Select ESD5Z3.3T1G when smaller reel size reduces inventory overhead or matches existing feeder setup |
| TPD2E001DRYR | Bi-directional configuration; 12 pF capacitance; 3.6 V standoff; 12 V clamping @ 1 A | Better suited for bidirectional signal lines like USB D+/D− where polarity reversal occurs | Choose TPD2E001DRYR only when protecting symmetric differential pairs requiring dual-polarity clamping |
Compared with ESD5Z3.3T5G, ESD5Z3.3T1G offers identical protection performance in a smaller reel format, while TPD2E001DRYR provides lower capacitance and bidirectional behavior at the cost of higher clamping voltage and reduced surge handling-making ESD5Z3.3T5G optimal for unidirectional 3.3 V rail protection where peak pulse current up to 11.2 A must be absorbed.
Availability
ESD5Z3.3T5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line safeguarding, and SDIO-based memory card interfaces requiring stable component supply across high-mix consumer electronics production.
Supply support for ESD5Z3.3T5G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The ESD5Z Series targets compact, high-reliability board-level ESD suppression for portable and battery-powered systems, emphasizing minimal capacitance, precise voltage thresholds, and full IEC 61000-4-2 Level 4 compliance in micro-packages.
FAQ
What is the maximum clamping voltage of ESD5Z3.3T5G under IEC 61000-4-2 testing?
The ESD5Z3.3T5G exhibits a clamping voltage of 14.1 V at 5 A peak pulse current, measured per the IEC 61000-4-2 8/20 µs waveform. This value is confirmed in the Electrical Characteristics table on page 3 of the official datasheet and represents the maximum voltage seen across the device during standardized ESD events. ESD5Z3.3T5G maintains this performance across its qualified operating temperature range.
Is ESD5Z3.3T5G suitable for protecting bidirectional data lines like USB D+ and D−?
No-ESD5Z3.3T5G is a unidirectional diode optimized for clamping negative transients on positive-rail I/O lines. For bidirectional signals such as USB 2.0 differential pairs, a bi-directional ESD suppressor like TPD2E001DRYR is required. Using ESD5Z3.3T5G on bidirectional lines risks incomplete protection during positive ESD events, as it does not conduct above its 3.3 V standoff in the forward direction.
What is the package type and dimensions of ESD5Z3.3T5G?
ESD5Z3.3T5G uses the SOD-523 package (Case 502), measuring 1.20 mm × 0.80 mm × 0.60 mm with a maximum height of 0.7 mm. It features a cathode band marking on pin 1 and matte tin lead finish. The device meets MSL 1 moisture sensitivity and is rated for 260 °C Pb-free reflow, as documented in the Mechanical Characteristics section of the onsemi datasheet.
Does ESD5Z3.3T5G meet automotive qualification standards?
ESD5Z3.3T5G is an industrial-grade part and is not AEC-Q101 qualified. However, the SZESD5Z3.3T5G variant-identical electrically but with enhanced process controls and PPAP documentation-is certified for automotive applications. Engineers requiring automotive compliance must specify the SZ-prefix version; ESD5Z3.3T5G itself is intended for commercial and industrial portable electronics.
How does the 105 pF capacitance of ESD5Z3.3T5G affect high-speed signal integrity?
The 105 pF capacitance of ESD5Z3.3T5G is measured at 0 V and 1 MHz, and is appropriate for interfaces up to ~100 Mbps, including SDIO, UART, and I²C. For USB 2.0 (480 Mbps) or HDMI TMDS lines, this capacitance may cause measurable rise-time degradation; in such cases, lower-capacitance alternatives like ESD5Z3.3T1G (same specs) or specialized ultra-low-C devices should be evaluated. ESD5Z3.3T5G remains valid for non-high-speed 3.3 V I/O protection.
ESD5Z3.3T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 14.1V
- Current - Peak Pulse (10/1000µs):
- 11.2A (8/20µs)
- Power - Peak Pulse:
- 158W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 105pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
ESD5Z3.3T5G FAQ
1.How can I place an order for ESD5Z3.3T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD5Z3.3T5G 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 ESD5Z3.3T5G reliable?
The price and inventory of ESD5Z3.3T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD5Z3.3T5G is usually 5 days.
3.What payment methods are accepted for ESD5Z3.3T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD5Z3.3T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD5Z3.3T5G?
ESD5Z3.3T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD5Z3.3T5G 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 ESD5Z3.3T5G?
For technical support, including ESD5Z3.3T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD5Z3.3T5G requirements.
6.How does Aetrix verify that ESD5Z3.3T5G is sourced from the original manufacturer or authorized distributors?
All ESD5Z3.3T5G 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 ESD5Z3.3T5G meets industry standards.
7.What is the process for return or replacement of ESD5Z3.3T5G?
All ESD5Z3.3T5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD5Z3.3T5G, 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 ESD5Z3.3T5G part is unused and in its original packaging.
Return procedure for ESD5Z3.3T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD5Z3.3T5G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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