onsemi ESD5Z3.3T1G
- Part No.:
- ESD5Z3.3T1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
ESD5Z3.3T1G.pdf
- Description:
- TVS DIODE 3.3VWM 14.1VC SOD523
- Quantity:
- Payment:

- Shipping:

Inventory:223,098
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Product details
Overview
ESD5Z3.3T1G from onsemi is a low-capacitance transient voltage suppression (TVS) diode designed for ESD protection of sensitive electronic interfaces and low-voltage communication lines. The device provides fast response time, low leakage current, and compact PCB integration, making it suitable for portable electronics, industrial control systems, communication interfaces, consumer devices, and embedded electronics requiring IEC-compliant ESD protection.
As a compact ESD protection solution, ESD5Z3.3T1G helps protect sensitive ICs and communication interfaces against electrostatic discharge and transient overvoltage events without significantly impacting signal integrity. For engineers reviewing the ESD5Z3.3T1G datasheet, ESD5Z3.3T1G pinout, ESD5Z3.3T1G application, or ESD5Z3.3T1G equivalent, this device is widely used in embedded signal-line and interface-protection architectures.
Technical Context
In electronic systems, ESD5Z3.3T1G is typically connected between signal lines and ground to clamp high-voltage transient events before they reach sensitive ICs or communication transceivers. During normal operation, the device remains in a high-impedance state with minimal leakage current and low signal loading.
When ESD or surge events occur, the TVS diode rapidly conducts transient current to ground, limiting voltage stress on downstream components. Its low capacitance characteristic supports use in high-speed communication interfaces and embedded digital systems where signal integrity is important.
ESD5Z3.3T1G is commonly used in USB interfaces, embedded I/O protection, sensor interfaces, industrial communication nodes, portable electronics, and low-voltage digital systems requiring compact transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3 V working voltage supports protection for low-voltage embedded and digital interfaces. |
| ESD Protection Function | Designed to suppress electrostatic discharge and transient overvoltage events on signal lines. |
| Low Capacitance | Low junction capacitance helps maintain signal integrity in communication interfaces. |
| Fast Response Time | Rapid transient response helps protect sensitive ICs during ESD surge conditions. |
| Low Leakage Current | Minimized standby leakage improves energy efficiency in portable and embedded electronics. |
| Compact Package | Small SOD-523 package supports dense PCB layouts and compact embedded designs. |
| IEC ESD Compatibility | Supports IEC61000-4-2 ESD protection requirements for industrial and consumer electronics. |
Pinout & Package
The ESD5Z3.3T1G pinout is optimized for compact transient suppression layouts and includes signal protection and ground discharge terminals within a miniature SOD-523 package.
For PCB design, the device should be placed close to external connectors or vulnerable IC interfaces to minimize parasitic inductance in the transient discharge path. Ground connections should remain short and low impedance to improve ESD energy dissipation efficiency.
| Pin / Function | PCB Design and Circuit Role |
|---|---|
| Cathode | Protected signal-line connection supporting transient voltage clamping functionality. |
| Anode | Ground-side discharge terminal supporting ESD current dissipation. |
Key Features
- Low-capacitance TVS architecture supports signal-line ESD protection with minimal signal distortion.
- Fast transient response improves protection reliability for sensitive embedded IC interfaces.
- 3.3 V working voltage supports low-voltage digital and communication systems.
- Compact SOD-523 package enables space-efficient PCB integration.
- Low leakage current improves standby power efficiency in portable electronics.
- IEC-compatible ESD suppression supports industrial and consumer electronic system protection.
Applications
| USB and Communication Interfaces | Portable Consumer Electronics |
|---|---|
|
Use Scenario: Used in USB ports, embedded communication lines, and digital interface protection systems. IC Role: ESD5Z3.3T1G suppresses ESD and transient events before they reach sensitive communication ICs. Use Value: Helps improve communication reliability and interface durability. |
Use Scenario: Used in smartphones, handheld devices, wearable electronics, and portable embedded systems. IC Role: Provides low-voltage transient suppression for sensitive digital interfaces. Use Value: Supports compact system protection with low standby power impact. |
| Industrial Embedded Systems | Sensor and I/O Protection |
|
Use Scenario: Used in industrial communication nodes, automation controllers, and embedded electronic platforms. IC Role: Protects communication and signal interfaces from ESD and transient disturbances. Use Value: Improves long-term embedded system reliability in harsh electrical environments. |
Use Scenario: Used in sensor interfaces, GPIO protection circuits, and low-voltage digital I/O systems. IC Role: Performs transient suppression on exposed signal and control lines. Use Value: Helps reduce IC failure risk caused by electrostatic discharge events. |
Equivalent & Alternatives
When evaluating an ESD5Z3.3T1G equivalent, engineers should compare reverse working voltage, capacitance characteristics, surge clamping performance, package size, and ESD protection capability.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PESD3V3S1UL | Nexperia PESD3V3S1UL provides low-capacitance ESD protection with similar signal-line protection functionality. | Widely used in portable and communication interface protection systems. | Choose ESD5Z3.3T1G for onsemi ecosystem compatibility and compact embedded designs. |
| ESDALC3V3-1BT2 | STMicroelectronics ESDALC3V3-1BT2 offers transient suppression with different clamping and capacitance characteristics. | Commonly used in industrial and consumer interface protection applications. | Choose ESD5Z3.3T1G for low leakage current and compact PCB implementation. |
Compared with PESD3V3S1UL, ESD5Z3.3T1G is optimized for compact embedded interface protection with low standby leakage. ESD5Z3.3T1G vs ESDALC3V3-1BT2 selection depends on capacitance targets, package constraints, interface speed, and transient protection requirements.
Quality
ESD5Z3.3T1G should be sourced as original onsemi components through traceable and controlled supply channels. Quality verification procedures may include package inspection, marking validation, solderability testing, ESD characterization, and electrical verification according to production requirements.
Because the device protects sensitive signal interfaces, ESD-safe handling, optimized PCB grounding, and controlled assembly practices help maintain long-term transient suppression reliability. Traceable sourcing supports industrial and embedded manufacturing quality.
Availability
ESD5Z3.3T1G available at Aetrix Electronics and is suitable for embedded interface and transient protection platforms requiring stable component availability and repeatable production support.
Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial embedded systems, portable electronics, and communication interface production programs.
For production builds, confirming package type, ESD requirements, lead time, and sourcing continuity helps improve procurement stability and reduce manufacturing interruption risk.
Manufacturer
onsemi is a semiconductor manufacturer specializing in power management devices, protection components, sensors, analog ICs, and automotive semiconductor technologies for industrial, automotive, communication, and consumer electronic applications.
For interface protection applications, onsemi provides compact ESD suppression devices and transient protection technologies optimized for embedded electronics reliability and high-volume manufacturing integration.
FAQ
What is ESD5Z3.3T1G used for?
ESD5Z3.3T1G is used for signal-line ESD protection, USB interface protection, embedded communication systems, sensor interfaces, and low-voltage transient suppression applications.
Where can I find the ESD5Z3.3T1G datasheet download?
The ESD5Z3.3T1G datasheet download is available from onsemi. The datasheet includes ESD ratings, clamping characteristics, electrical specifications, package information, and PCB layout guidance.
What should be considered in ESD5Z3.3T1G pinout design?
ESD5Z3.3T1G pinout design should prioritize short discharge paths, low-impedance grounding, close placement to connectors, minimized trace inductance, and optimized transient current routing.
Does ESD5Z3.3T1G support low-capacitance interface protection?
Yes. ESD5Z3.3T1G is optimized for low-capacitance transient suppression in sensitive communication and embedded digital interfaces.
What are common ESD5Z3.3T1G equivalent solutions?
Common ESD5Z3.3T1G equivalent alternatives include PESD3V3S1UL and ESDALC3V3-1BT2 depending on interface speed, capacitance requirements, package preference, and transient protection performance.
ESD5Z3.3T1G 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
ESD5Z3.3T1G FAQ
1.How can I place an order for ESD5Z3.3T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD5Z3.3T1G 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 ESD5Z3.3T1G reliable?
The price and inventory of ESD5Z3.3T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD5Z3.3T1G is usually 5 days.
3.What payment methods are accepted for ESD5Z3.3T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD5Z3.3T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD5Z3.3T1G?
ESD5Z3.3T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD5Z3.3T1G 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 ESD5Z3.3T1G?
For technical support, including ESD5Z3.3T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD5Z3.3T1G requirements.
6.How does Aetrix verify that ESD5Z3.3T1G is sourced from the original manufacturer or authorized distributors?
All ESD5Z3.3T1G 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 ESD5Z3.3T1G meets industry standards.
7.What is the process for return or replacement of ESD5Z3.3T1G?
All ESD5Z3.3T1G units undergo pre-shipment inspection (PSI). If there is an issue with ESD5Z3.3T1G, 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 ESD5Z3.3T1G part is unused and in its original packaging.
Return procedure for ESD5Z3.3T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD5Z3.3T1G 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

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D12V0L1B2LP-7B
Diodes Incorporated

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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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