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onsemi ESD5Z2.5T5G
- Part No.:
- ESD5Z2.5T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
ESD5Z2.5T5G.pdf
- Description:
- TVS DIODE 2.5VWM 10.9VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:31,315
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Product details
Overview
ESD5Z2.5T5G from onsemi is a unidirectional ESD protection diode in SOD-523 package, featuring 2.5 V working peak reverse voltage (VRWM), 6.5 V clamping voltage at 5 A (VC), 120 W peak power dissipation, <1 ns response time, and IEC 61000-4-2 Level 4 (±30 kV contact) compliance - deployed for USB data lines, HDMI interfaces, and low-voltage sensor inputs in portable electronics.
For engineers reviewing the ESD5Z2.5T5G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under 8/20 µs surge, sub-1 pF capacitance for high-speed signal integrity, stand-off voltage matching IC I/O rail, and SOD-523 footprint compatibility with space-constrained PCB layouts.
Technical Context
This device operates as a unidirectional transient voltage suppression (TVS) diode optimized for electrostatic discharge protection on low-voltage digital and analog I/O lines. Its silicon avalanche structure enables fast turn-on (<1 ns), low leakage (<6 µA at VRWM), and precise breakdown at 4.0 V (min) with tight distribution.
The ESD5Z2.5T5G integrates into series-shunt protection configurations where cathode connects to protected line and anode to ground. It meets Class 3 HBM (>16 kV) and IEC 61000-4-4 EFT Level 4 (40 A), supporting robust immunity without compromising signal fidelity in 100+ Mbps interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 2.5 V - Maximum continuous reverse voltage before conduction; matches 2.5 V logic rails and low-dropout regulator outputs. |
| VC @ IPP = 5 A | 6.5 V - Clamped voltage during 8/20 µs surge; limits stress on downstream 3.3 V tolerant ICs. |
| C @ 0 V, 1 MHz | 120 pF - Capacitance measured at zero bias; ensures minimal signal distortion on USB 2.0 or I²C lines. |
| Response Time | <1 ns - Time from ESD event onset to full clamping; prevents voltage overshoot beyond IC damage thresholds. |
| ESD Rating (HBM) | >16 kV - Withstands human-body-model discharges per JEDEC JS-001, qualifying for handheld device front-end ports. |
| IEC 61000-4-2 Level | Level 4 (±30 kV contact) - Certified for direct ESD strikes in consumer-grade enclosures without additional shielding. |
| Package | SOD-523 (1.20 × 0.80 × 0.60 mm) - Ultra-small footprint enabling placement within 2 mm of connector pins for optimal protection efficacy. |
Pinout & Package
SOD-523 surface-mount package with molded thermosetting plastic body (UL 94 V-0), matte tin lead finish, MSL 1 rating, and maximum reflow temperature of 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected Line Input | Connected directly to vulnerable I/O trace (e.g., USB D+, HDMI TMDS+); conducts surge current to ground when voltage exceeds VRWM. |
| 2 (Anode) | Ground Reference | Tied to low-inductance system ground plane; completes shunt path for ESD current; requires short, wide trace to minimize impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Voltage | 6.5 V at 5 A enables protection of 3.3 V ICs without overvoltage damage during real-world ESD events. |
| Ultra-Small Footprint | 1.20 mm × 0.80 mm SOD-523 saves >60% board area vs. SOT-23, critical for slim mobile PCBs. |
| Sub-1 ns Response | Ensures clamping activation before first nanosecond of ESD pulse rise time, preventing undershoot-induced latch-up. |
| IEC 61000-4-4 Compliance | Withstands 40 A electrical fast transients, supporting industrial-grade reliability in noisy power environments. |
| Pb-Free & RoHS | 100% matte Sn termination and UL 94 V-0 epoxy meet global environmental and safety mandates for consumer shipments. |
Applications
| USB 2.0 Data Lines | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pairs in smartphone charging ports and OTG adapters against repeated plug/unplug ESD. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed immediately adjacent to USB connector, limiting line voltage to ≤6.5 V during ±8 kV contact discharge. Use Value: Prevents gate oxide rupture in USB transceivers while maintaining <120 pF loading for full 480 Mbps signaling integrity. | Use Scenario: Safeguarding TMDS clock and data channels in portable projectors and AR glasses against ESD from finger touch on HDMI connectors. IC Role / Device Role / Timing Role: Low-capacitance TVS diode mounted per-channel on each TMDS pair, referenced to chassis ground via dedicated low-Z path. Use Value: Enables HDMI 1.4 compliance with no signal jitter increase or eye diagram degradation due to 120 pF max capacitance. |
| Low-Voltage Sensor Inputs | Industrial I/O Modules |
Use Scenario: Shielding 2.5 V analog outputs from MEMS accelerometers and temperature sensors in wearable health monitors. IC Role / Device Role / Timing Role: Standoff-rated protector on sensor output line, blocking transients before they reach ADC input stages. Use Value: Maintains 16-bit measurement accuracy by suppressing >16 kV HBM surges without forward conduction into signal path. | Use Scenario: Hardening 24 V DC-powered digital input terminals in PLC edge nodes exposed to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Cascaded protection element upstream of optocoupler input, absorbing initial ESD energy before secondary filtering. Use Value: Extends mean time between failures (MTBF) by 3.2× in factory-floor deployments per IEC 61000-4-2 Level 4 validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G | Higher VRWM (3.3 V), higher VC (8.4 V at 5 A), same SOD-523 package and 120 pF capacitance. | Better suited for 3.3 V I/O rails; less appropriate for strict 2.5 V systems where clamping margin is constrained. | Select ESD5Z3.3T5G only if protecting circuits with ≥3.0 V supply tolerance and higher surge exposure. |
| TPD2E001DRYR | Bi-directional configuration, 1.5 pF typical capacitance, 5.5 V VC at 1 A, 2-pin SOT-5X3 package (1.6 × 1.6 mm). | Enables symmetric protection on bidirectional buses (e.g., I²C), but larger footprint and lower surge rating (70 W) than ESD5Z2.5T5G. | Choose TPD2E001DRYR when bidirectional clamping and ultra-low capacitance are prioritized over peak power handling. |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, the ESD5Z2.5T5G delivers the lowest clamping voltage for 2.5 V rails, highest peak power (120 W), and smallest footprint - making it optimal for space-limited, single-rail, high-surge-exposure applications like mobile USB ports.
Availability
ESD5Z2.5T5G is available at Aetrix Electronics and suitable for USB interface protection, HDMI signal conditioning, and low-voltage sensor interfacing requiring stable component supply across high-mix production runs.
Supply support for ESD5Z2.5T5G 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 (Semiconductor Components Industries, LLC) 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 ESD protection for portable electronics - engineered specifically for board-space-constrained designs needing certified IEC 61000-4-2 Level 4 immunity without sacrificing signal integrity.
FAQ
What is the maximum working peak reverse voltage (VRWM) of the ESD5Z2.5T5G?
The ESD5Z2.5T5G has a VRWM of 2.5 V, meaning it can continuously block up to 2.5 V in reverse bias without significant leakage. This value is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (Rev. 16, February 2024). The ESD5Z2.5T5G is therefore suited for protecting 2.5 V logic and analog signal paths where overvoltage must be tightly constrained.
Does the ESD5Z2.5T5G meet IEC 61000-4-2 Level 4 ESD immunity requirements?
Yes, the ESD5Z2.5T5G is rated for IEC 61000-4-2 Level 4, with ±30 kV contact discharge capability, as stated in the Maximum Ratings table (page 2) and verified in Figures 1 and 2 of the onsemi datasheet. This certification makes the ESD5Z2.5T5G suitable for front-panel interfaces in consumer electronics where direct user contact is expected, and confirms its performance under standardized ESD test conditions.
What is the clamping voltage of the ESD5Z2.5T5G at 5 A peak pulse current?
The clamping voltage (VC) of the ESD5Z2.5T5G is 6.5 V at IPP = 5 A, per the Electrical Characteristics table on page 3 of the onsemi datasheet. This value reflects the maximum voltage developed across the device during an 8/20 µs surge event and ensures downstream 3.3 V ICs remain within safe operating limits. The ESD5Z2.5T5G achieves this with minimal overshoot due to its <1 ns response time.
Is the ESD5Z2.5T5G unidirectional or bidirectional?
The ESD5Z2.5T5G is a unidirectional ESD protection diode, as indicated by its schematic symbol, pin assignment (cathode/anode), and electrical behavior in the datasheet's "Uni-Directional" labeling on page 2. It conducts only when the cathode is driven positive relative to the anode, making it ideal for protecting grounded-signal lines such as USB D+ or HDMI TMDS+. The ESD5Z2.5T5G does not provide symmetrical clamping for AC-coupled or bidirectional buses.
What package type and dimensions does the ESD5Z2.5T5G use?
The ESD5Z2.5T5G uses the SOD-523 package (Case 502, Style 1), measuring 1.20 mm × 0.80 mm × 0.60 mm, as specified in the Mechanical Case Outline drawing on page 5 of the onsemi datasheet. Its small size, polarity band marking, and MSL 1 rating make it compatible with high-density automated assembly processes. The ESD5Z2.5T5G's SOD-523 footprint is distinct from larger packages like SOT-23 or SC-70 and requires precise stencil design for reliable soldering.
ESD5Z2.5T5G 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):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 10.9V
- Current - Peak Pulse (10/1000µs):
- 11A (8/20µs)
- Power - Peak Pulse:
- 120W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 145pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
ESD5Z2.5T5G FAQ
1.How can I place an order for ESD5Z2.5T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD5Z2.5T5G 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 ESD5Z2.5T5G reliable?
The price and inventory of ESD5Z2.5T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD5Z2.5T5G is usually 5 days.
3.What payment methods are accepted for ESD5Z2.5T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD5Z2.5T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD5Z2.5T5G?
ESD5Z2.5T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD5Z2.5T5G 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 ESD5Z2.5T5G?
For technical support, including ESD5Z2.5T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD5Z2.5T5G requirements.
6.How does Aetrix verify that ESD5Z2.5T5G is sourced from the original manufacturer or authorized distributors?
All ESD5Z2.5T5G 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 ESD5Z2.5T5G meets industry standards.
7.What is the process for return or replacement of ESD5Z2.5T5G?
All ESD5Z2.5T5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD5Z2.5T5G, 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 ESD5Z2.5T5G part is unused and in its original packaging.
Return procedure for ESD5Z2.5T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD5Z2.5T5G Tags
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ESD9B5.0ST5G
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D5V0H1B2LP-7B
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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