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onsemi ESD5B5.0ST5G
- Part No.:
- ESD5B5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
ESD5B5.0ST5G.pdf
- Description:
- TVS DIODE 5VWM SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:70,341
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Product details
Overview
ESD5B5.0ST5G from onsemi is a bi-directional ESD protection diode in SOD-523 package, rated for 5.0 V reverse stand-off voltage, 32 pF capacitance, <1 ns response time, and 16 kV HBM ESD rating. It protects audio lines and high-speed data interfaces in portable electronics against transient overvoltage events.
For engineers reviewing the ESD5B5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under 8/20 µs pulse, IEC 61000-4-2 Level 4 compliance, low leakage (<1.0 µA), and compatibility with space-constrained PCB layouts requiring 1.6 mm × 0.8 mm footprint.
Technical Context
This device operates as a voltage-clamped transient suppressor, leveraging silicon avalanche structure to conduct during ESD events while maintaining high impedance below 5.0 V working voltage. Its bi-directional symmetry enables protection of AC-coupled signal paths without polarity constraints.
Clamping performance is characterized per IEC 61000-4-2 contact discharge (±30 kV) and HBM (16 kV), with peak pulse current capability up to 50 W at 8 × 20 µs waveform. Junction temperature range spans −55 °C to +150 °C, supporting operation in consumer and automotive ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 5.0 V - Maximum continuous DC voltage before conduction begins; sets protection threshold for 3.3 V/5 V logic rails. |
| Clamping Voltage @ IPP | 7.8 V max @ 1 A - Peak voltage seen by protected IC during 8/20 µs surge; limits stress on downstream components. |
| Capacitance @ 0 V | 32 pF - Signal integrity impact on high-speed lines (e.g., USB 2.0, audio codecs); compatible with ≤10 MHz analog paths. |
| ESD Rating (HBM) | Class 3 (>16 kV) - Meets IEC 61000-4-2 Level 4 for robust system-level ESD immunity in handheld devices. |
| Response Time | <1 ns - Ensures suppression initiates before transient energy couples into sensitive circuitry. |
| Leakage Current | <1.0 µA @ 5.0 V - Minimizes quiescent power loss and avoids loading of high-impedance sensor or bias networks. |
| Package | SOD-523 - 1.6 mm × 0.8 mm × 0.6 mm footprint; supports fine-pitch routing and automated placement in compact assemblies. |
Pinout & Package
Package: SOD-523 - ultra-small surface-mount plastic case (1.6 mm × 0.8 mm body, 0.6 mm height), void-free epoxy meeting UL 94 V-0, matte tin lead finish, MSL 1 rated, reflow-compatible up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during positive transients | Connects to line under protection; conducts when voltage exceeds VRWM + VBR in forward direction. |
| Cathode | Current entry during negative transients | Connects to line under protection; conducts when voltage falls below −VRWM − VBR in reverse direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled signals (e.g., stereo audio, differential data) without external polarity management. |
| Low 32 pF capacitance | Maintains signal fidelity on 10–20 MHz analog audio paths and preserves rise/fall times on low-speed digital lines. |
| IEC 61000-4-2 Level 4 compliance | Guarantees survivability against ±8 kV contact and ±15 kV air discharge, satisfying end-equipment certification requirements. |
| AEC-Q101 qualified (SZ variant) | Validated for automotive infotainment and body electronics where reliability under thermal cycling and vibration is mandatory. |
| Pb-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile, enabling lead-free assembly. |
Applications
| Smartphone Audio Jack Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting 3.5 mm TRRS headset interface from user-hand ESD during plug insertion/removal. IC Role / Device Role / Timing Role: Bi-directional transient voltage suppressor placed between jack contacts and codec input pins. Use Value: Limits clamped voltage to ≤7.8 V during ±8 kV IEC contact discharge, preventing latch-up or oxide damage in audio codec ICs. | Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports in portable media players against cable-induced ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted adjacent to connector to minimize stub length. Use Value: 32 pF capacitance avoids signal integrity degradation at 480 Mbps, while sub-1 ns response ensures suppression precedes data eye closure. |
| Automotive Infotainment Display Touch Lines | Industrial Handheld Scanner Button Interface |
Use Scenario: Shielding capacitive touch overlay signal traces from ESD events during user interaction with center console displays. IC Role / Device Role / Timing Role: AEC-Q101-qualified ESD clamp on I²C or GPIO lines connecting touch controller to overlay. Use Value: Withstands repeated ±15 kV air discharge per IEC 61000-4-2, ensuring long-term reliability in vehicle cabin thermal cycles. | Use Scenario: Protecting momentary push-button inputs on ruggedized barcode scanners exposed to field ESD in warehouse environments. IC Role / Device Role / Timing Role: Standoff-rated suppressor on microcontroller GPIO lines tied to mechanical switches. Use Value: 5.0 V VRWM matches 3.3 V MCU I/O rail; <1 µA leakage prevents false triggering in battery-powered sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Unidirectional, 12 pF capacitance, 5.5 V VRWM, 12 kV HBM rating | Requires separate devices per polarity; better suited for low-capacitance USB 2.0 or HDMI lines | Select when lower capacitance is critical and unidirectional topology aligns with signal path grounding. |
| ESD9X5.0ST5G | Same SOD-523 package, 5.0 V VRWM, but 15 pF capacitance and 30 W peak power rating | Higher clamping voltage (8.5 V max) and reduced surge handling vs. ESD5B5.0ST5G | Choose for cost-sensitive designs where 32 pF is acceptable and 50 W pulse handling is not required. |
Compared with TPD2E001DRYR and ESD9X5.0ST5G, ESD5B5.0ST5G delivers superior bi-directional clamping (7.8 V), higher surge robustness (50 W), and full IEC 61000-4-2 Level 4 compliance-making it optimal for space-constrained, dual-rail audio and data interfaces demanding proven field reliability.
Availability
ESD5B5.0ST5G is available at Aetrix Electronics and suitable for smartphone audio jack protection, USB 2.0 data line safeguarding, and automotive infotainment display touch line shielding requiring stable component supply across high-volume production runs.
Supply support for ESD5B5.0ST5G 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, high-performance silicon solutions for automotive, industrial, cloud, medical, and edge applications.
The ESD5B Series belongs to onsemi's transient protection product line, engineered specifically for board-level ESD hardening of high-speed and analog interfaces in portable and automotive electronics.
FAQ
What is the maximum clamping voltage of ESD5B5.0ST5G under IEC 61000-4-2 testing?
The ESD5B5.0ST5G exhibits a maximum clamping voltage of 7.8 V when subjected to a 1 A peak pulse current per the IEC 61000-4-2 8/20 µs waveform. This value is measured across the device terminals during standardized ESD surge events and ensures downstream ICs remain within safe operating voltage margins. The clamping behavior is consistent for both polarities due to its bi-directional design, and the 7.8 V specification applies directly to the ESD5B5.0ST5G under the conditions defined in the official onsemi datasheet Rev. 8.
Is ESD5B5.0ST5G suitable for protecting USB 2.0 differential pairs?
Yes, ESD5B5.0ST5G is suitable for USB 2.0 data line protection due to its 32 pF capacitance, which introduces negligible signal distortion at 480 Mbps data rates, and its <1 ns response time, which ensures suppression occurs before transient energy propagates into the transceiver. Its 5.0 V VRWM aligns with standard 3.3 V USB I/O rails, and bi-directional operation eliminates polarity concerns on D+ and D− lines. The ESD5B5.0ST5G must be placed as close as possible to the USB connector to maintain effectiveness.
Does ESD5B5.0ST5G meet automotive qualification standards?
The base ESD5B5.0ST5G is not AEC-Q101 qualified; however, the SZESD5B5.0ST5G variant-identical in electrical and mechanical specifications-is fully AEC-Q101 qualified and PPAP capable. For automotive infotainment or body electronics applications requiring certified reliability, designers should specify the SZ-prefix version. The ESD5B5.0ST5G remains appropriate for consumer-grade portable devices where AEC-Q101 is not mandated.
What is the thermal performance limit of ESD5B5.0ST5G during surge events?
ESD5B5.0ST5G is rated for a junction temperature range of −55 °C to +150 °C and can dissipate up to 50 W peak power under an 8 × 20 µs pulse per Figure 1 in the datasheet. Its thermal resistance (junction-to-ambient) is optimized for SOD-523 mounting on FR-5 boards, with total power dissipation limited to 200 mW under steady-state conditions at TA = 25 °C. Transient thermal performance is validated via IEC 61000-4-2 Level 4 testing, confirming no parametric shift or failure after repeated ±8 kV contact discharges.
How does the 32 pF capacitance of ESD5B5.0ST5G affect audio signal integrity?
The 32 pF capacitance of ESD5B5.0ST5G results in minimal attenuation for audio band frequencies (20 Hz–20 kHz), introducing less than 0.1 dB loss at 20 kHz when used with typical 10 kΩ source impedances. It is well-suited for stereo headphone outputs, microphone inputs, and line-level interconnects in smartphones and MP3 players. While not recommended for RF or >100 MHz digital paths, this capacitance level strikes a balance between ESD robustness and analog fidelity-confirmed by onsemi's application note AND8308/D for ESD device parameter interpretation.
ESD5B5.0ST5G 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 50W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 32pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
ESD5B5.0ST5G FAQ
1.How can I place an order for ESD5B5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD5B5.0ST5G 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 ESD5B5.0ST5G reliable?
The price and inventory of ESD5B5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD5B5.0ST5G is usually 5 days.
3.What payment methods are accepted for ESD5B5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD5B5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD5B5.0ST5G?
ESD5B5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD5B5.0ST5G 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 ESD5B5.0ST5G?
For technical support, including ESD5B5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD5B5.0ST5G requirements.
6.How does Aetrix verify that ESD5B5.0ST5G is sourced from the original manufacturer or authorized distributors?
All ESD5B5.0ST5G 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 ESD5B5.0ST5G meets industry standards.
7.What is the process for return or replacement of ESD5B5.0ST5G?
All ESD5B5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD5B5.0ST5G, 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 ESD5B5.0ST5G part is unused and in its original packaging.
Return procedure for ESD5B5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD5B5.0ST5G Tags
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