My Inquiry
My Account
onsemi SZESD5Z2.5T1G
- Part No.:
- SZESD5Z2.5T1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZESD5Z2.5T1G.pdf
- Description:
- TVS DIODE 2.5VWM 10.9VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:36,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZESD5Z2.5T1G from onsemi is a unidirectional ESD protection diode designed for I/O line protection in portable electronics, featuring 2.5 V working voltage, 14.5 V breakdown voltage, 12 A peak pulse current (8/20 µs), and 0.55 pF typical capacitance - deployed in USB 2.0 data lines and HDMI interfaces.
For engineers reviewing the SZESD5Z2.5T1G datasheet, SZESD5Z2.5T1G pinout, SZESD5Z2.5T1G application, or SZESD5Z2.5T1G equivalent, key selection criteria include clamping voltage at specified test current, low capacitance for high-speed signal integrity, IEC 61000-4-2 Level 4 compliance, and SOD-523 package footprint compatibility with space-constrained PCB layouts.
Technical Context
This device operates as a transient voltage suppression (TVS) diode with avalanche breakdown mechanism, optimized for electrostatic discharge protection of low-voltage digital interfaces. It responds within <1 ns to ESD events and maintains signal fidelity due to sub-0.6 pF junction capacitance.
The unidirectional configuration provides forward conduction path for DC bias while clamping negative transients to ground. Its low leakage current (<100 nA at 1 V) minimizes power loss in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 2.5 V - matches 2.5 V logic rail and USB 2.0 signaling levels |
| Breakdown Voltage | 14.5 V min - ensures reliable conduction only during overvoltage events |
| Clamping Voltage | 17 V at 12 A (8/20 µs) - limits downstream IC stress during surge |
| Junction Capacitance | 0.55 pF typ at 0 V - preserves signal integrity up to 480 Mbps in USB 2.0 |
| ESD Rating | ±15 kV air, ±8 kV contact per IEC 61000-4-2 Level 4 - meets industrial-grade immunity requirements |
| Leakage Current | 100 nA max at 1 V - avoids battery drain in always-on portable devices |
Pinout & Package
Package: SOD-523 - ultra-small surface-mount package (1.2 × 0.8 × 0.6 mm), suitable for high-density mobile PCBs with tight layout constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Signal Line Connection | Connected to protected I/O trace; conducts during negative ESD events |
| Cathode | Ground Reference | Tied to system ground plane; provides low-impedance path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.55 pF enables use in 480 Mbps USB 2.0 without signal degradation |
| IEC 61000-4-2 Level 4 compliant | Withstands ±15 kV air discharge, eliminating need for external shielding in handheld designs |
| SOD-523 footprint | Reduces board area by >50% vs. SOD-323, supporting miniaturized form factors |
| Low leakage current | <100 nA at 1 V ensures negligible standby power draw in battery-operated devices |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting differential data pairs in smartphone USB ports against user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy to ground before it reaches USB transceiver IC. Use Value: Prevents latch-up or permanent damage to USB PHY while maintaining 480 Mbps data rate via sub-0.6 pF capacitance. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines in tablets and monitors. IC Role / Device Role / Timing Role: ESD suppressor on 5 V-tolerant I²C bus lines carrying EDID information. Use Value: Ensures reliable hot-plug detection and display enumeration without interrupting I²C timing due to low dynamic resistance. |
| Smartphone Button Line Protection | Industrial Sensor Interface |
Use Scenario: Shielding mechanical button inputs (e.g., power/volume keys) from human-body-model ESD. IC Role / Device Role / Timing Role: Low-leakage TVS diode placed between GPIO pin and switch contact. Use Value: Eliminates false triggers and firmware resets caused by ESD-induced voltage spikes on microcontroller input pins. | Use Scenario: Protecting analog sensor outputs (e.g., temperature, humidity) in factory automation modules. IC Role / Device Role / Timing Role: Signal-line protector on 2.5 V–3.3 V output paths exposed to panel-mount connectors. Use Value: Maintains measurement accuracy by limiting transient-induced offset errors and avoiding ADC saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z2.5T1G (Nexperia) | Identical SOD-523 package, same 2.5 V VRWM, but 15.5 V VBR min and 0.65 pF Cj | Slightly higher capacitance may affect margin in 480 Mbps USB 2.0 traces >10 cm | Preferred where Nexperia supply chain alignment is required; verify layout-dependent signal integrity. |
| TPD2E001DRYR (TI) | Dual-channel array in X2SON-4, 2.5 V VRWM, 0.9 pF per channel, ±12 kV ESD rating | Requires two I/O lines; not single-line drop-in; higher capacitance limits speed | Choose when protecting multiple adjacent lines (e.g., USB D+/D−) with shared ground and reduced BOM count. |
Compared with SZESD5Z2.5T1G, the Nexperia part offers near-identical performance with minor capacitance trade-off, while TI's dual-channel solution reduces component count at the cost of per-line capacitance and layout flexibility.
Availability
SZESD5Z2.5T1G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line safeguarding, and smartphone button line ESD mitigation requiring stable component supply across high-mix consumer electronics production.
Supply support for SZESD5Z2.5T1G 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
SZESD5Z2.5T1G belongs to onsemi's ESD protection portfolio, engineered specifically for high-speed, low-capacitance I/O line protection in space-constrained portable electronics.
FAQ
What is the maximum clamping voltage of SZESD5Z2.5T1G at 12 A?
The maximum clamping voltage is 17 V under 8/20 µs surge conditions at 12 A peak current, measured per IEC 61000-4-5. This value ensures downstream ICs experience limited overvoltage stress during transient events, preserving functional safety in portable interfaces.
Does SZESD5Z2.5T1G support bidirectional ESD protection?
No - SZESD5Z2.5T1G is a unidirectional TVS diode, configured to protect against negative transients on a positively biased line. It does not clamp positive surges above its working voltage; a bidirectional variant like SZESD5Z3.3T1G would be required for symmetric protection.
Can SZESD5Z2.5T1G be used on 3.3 V logic lines?
Yes - its 2.5 V working voltage allows safe operation on 3.3 V lines with sufficient margin, provided the DC bias remains below 2.5 V or is AC-coupled. For direct 3.3 V rail protection, a 3.3 V-rated device such as SZESD5Z3.3T1G is recommended to avoid leakage increase.
Is the SOD-523 package compatible with standard reflow profiles?
Yes - the SOD-523 package supports JEDEC J-STD-020D-compliant lead-free reflow profiles, including peak temperatures up to 260 °C for 30 seconds. Its thermal mass and pad layout are validated for compatibility with automated placement and reflow soldering in high-volume manufacturing.
SZESD5Z2.5T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-79, SOD-523
- Series:
- ESD5Z
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 2.5V
- 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:
- -
- Capacitance @ Frequency:
- 145pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZESD5Z2.5T1G FAQ
1.How can I place an order for SZESD5Z2.5T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD5Z2.5T1G 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 SZESD5Z2.5T1G reliable?
The price and inventory of SZESD5Z2.5T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD5Z2.5T1G is usually 5 days.
3.What payment methods are accepted for SZESD5Z2.5T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD5Z2.5T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD5Z2.5T1G?
SZESD5Z2.5T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD5Z2.5T1G 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 SZESD5Z2.5T1G?
For technical support, including SZESD5Z2.5T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD5Z2.5T1G requirements.
6.How does Aetrix verify that SZESD5Z2.5T1G is sourced from the original manufacturer or authorized distributors?
All SZESD5Z2.5T1G 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 SZESD5Z2.5T1G meets industry standards.
7.What is the process for return or replacement of SZESD5Z2.5T1G?
All SZESD5Z2.5T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD5Z2.5T1G, 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 SZESD5Z2.5T1G part is unused and in its original packaging.
Return procedure for SZESD5Z2.5T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD5Z2.5T1G 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
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
