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onsemi ESD5B5.0ST1G
- Part No.:
- ESD5B5.0ST1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
ESD5B5.0ST1G.pdf
- Description:
- TVS DIODE 5VWM SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:96,103
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Product details
Overview
ESD5B5.0ST1G 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, and clamping voltage ≤7.8 V at 1 A peak pulse current. It delivers Class 3 HBM ESD immunity (>16 kV) and IEC 61000-4-2 Level 4 (±30 kV contact/air) protection for high-speed audio/data lines in portable consumer electronics.
For engineers reviewing the ESD5B5.0ST1G datasheet, pinout, applications, or equivalent options, key selection criteria include low-capacitance line protection, sub-1 ns response time, AEC-Q101 qualification status, and compatibility with space-constrained PCB layouts requiring 1.6 mm × 0.8 mm footprints.
Technical Context
This device operates as a transient voltage suppression (TVS) diode with bi-directional conduction, enabling symmetric clamping of positive and negative ESD transients without polarity constraints. Its silicon avalanche structure ensures fast turn-on (<1 ns) and stable clamping across IEC 61000-4-2 8/20 µs and 10/1000 µs waveforms.
Designed for signal integrity preservation, the 32 pF capacitance minimizes insertion loss on high-frequency interfaces such as USB 2.0, HDMI DDC, and analog audio paths. The 5.0 V VRWM aligns with 3.3 V and 5 V logic rail protection requirements while maintaining margin against normal operating voltage excursions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 5.0 V - Ensures no conduction during normal 3.3 V/5 V system operation, preserving signal integrity |
| Clamping Voltage @ 1 A | ≤7.8 V - Limits downstream IC voltage exposure to safe levels during ±8 kV IEC 61000-4-2 events |
| Capacitance @ 0 V | 32 pF - Enables use on 480 Mbps USB 2.0 data lines without signal degradation |
| ESD Rating (HBM) | >16 kV - Meets Class 3 requirement for handheld device reliability testing |
| Response Time | <1 ns - Activates before sensitive CMOS inputs experience overstress |
| Peak Pulse Power | 50 W @ 8×20 µs - Handles full IEC 61000-4-2 Level 4 surge energy without failure |
| Leakage Current @ VRWM | ≤1.0 µA - Prevents battery drain in always-on portable circuits |
Pinout & Package
Package: SOD-523 (Case 502), dimensions 1.6 mm × 0.8 mm × 0.6 mm, Pb-free matte tin lead finish, MSL 1, reflow-compatible up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input/Output Line Terminal | Connects to protected signal line; forms one side of bi-directional clamping path |
| Cathode (Pin 2) | Input/Output Line Terminal | Connects to same protected signal line; completes symmetrical ESD shunt path to ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping architecture | Protects AC-coupled or differential signals (e.g., stereo headphone L/R) without polarity sensitivity |
| 32 pF low capacitance | Maintains <0.1 dB insertion loss at 100 MHz, critical for audio fidelity and USB 2.0 eye diagram compliance |
| IEC 61000-4-2 Level 4 rating | Guarantees survivability against ±30 kV contact discharge in final product validation |
| AEC-Q101 qualified (SZ variant) | Validated for automotive infotainment audio ports where ESD robustness and temperature cycling are mandatory |
| SOD-523 ultra-small footprint | Enables placement directly at connector entry points with minimal trace inductance, maximizing protection efficacy |
Applications
| Smartphone Audio Jack Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting 3.5 mm TRRS headset interface from user-hand ESD events during plug insertion/removal. IC Role / Device Role / Timing Role: Bi-directional TVS diode placed inline between codec output and jack contacts. Use Value: 32 pF capacitance prevents high-frequency attenuation; 7.8 V clamping prevents codec input latch-up during ±15 kV HBM events. | Use Scenario: Safeguarding D+ and D− lines of USB 2.0 peripherals against ESD coupling from cables or enclosures. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp mounted adjacent to USB connector. Use Value: Sub-1 ns response ensures clamping occurs before USB transceiver internal ESD structures fail; 5.0 V VRWM avoids false triggering during 480 Mbps data signaling. |
| Portable Media Player Line-Out | Automotive Infotainment Headphone Port |
Use Scenario: Shielding analog line-out signals driving external speakers or headphones in MP3 players. IC Role / Device Role / Timing Role: Signal-line ESD suppressor placed between audio amplifier output and output jack. Use Value: 5.0 V stand-off accommodates typical 3.3 V amplifier rails; low leakage (<1 µA) eliminates audible pop during power-up sequencing. | Use Scenario: Hardening 3.5 mm headphone jacks in vehicle dashboards exposed to dry-climate ESD. IC Role / Device Role / Timing Role: AEC-Q101-qualified bi-directional protector integrated into head unit PCB near jack. Use Value: Validated operation from −40 °C to +125 °C ambient; ±30 kV IEC 61000-4-2 performance meets OEM EMC test plans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z5.0T1G | Same 5.0 V VRWM, but SOD-323 package (2.7 mm × 1.2 mm); 45 pF capacitance | Larger footprint increases trace inductance; higher capacitance limits use to <10 MHz analog lines | Select when board layout allows larger pad spacing and signal bandwidth <10 MHz |
| TPD2E001DRYR | 2-channel array in SOT-553; 15 pF per channel; 5.5 V VRWM; integrated 100 Ω series resistors | Provides dual-line protection in single package; resistors add signal damping unsuitable for high-speed data | Prefer for space-constrained dual-line protection where 100 Ω series impedance is acceptable |
Compared with ESD5B5.0ST1G, ESD5Z5.0T1G trades compactness for easier handling and soldering, while TPD2E001DRYR offers multi-line integration at the cost of added series resistance-making ESD5B5.0ST1G optimal for single-line, high-bandwidth, ultra-miniature placements.
Availability
ESD5B5.0ST1G is available at Aetrix Electronics and suitable for smartphone audio jack protection, USB 2.0 data line safeguarding, and portable media player line-out circuits requiring stable component supply and consistent ESD performance across production batches.
Supply support for ESD5B5.0ST1G 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 consumer applications.
The ESD5B Series targets ultra-compact, high-fidelity ESD protection for portable electronics-specifically engineered to preserve signal integrity on audio, USB, and sensor interfaces while meeting stringent IEC and AEC reliability standards.
FAQ
What is the maximum clamping voltage of ESD5B5.0ST1G under IEC 61000-4-2 stress?
The ESD5B5.0ST1G exhibits a maximum clamping voltage of 7.8 V when subjected to a 1 A peak pulse current, as defined by the IEC 61000-4-2 waveform. This value is measured across the device terminals during standardized ESD testing and ensures downstream ICs remain within safe operating voltage limits. The clamping behavior is verified per Figures 1 and 2 in the official onsemi datasheet ESD5B5.0ST1/D.
Is ESD5B5.0ST1G suitable for protecting USB 2.0 high-speed data lines?
Yes, ESD5B5.0ST1G is suitable for USB 2.0 data line protection due to its 32 pF capacitance, which maintains signal integrity at 480 Mbps without violating USB eye diagram masks. Its 5.0 V VRWM provides adequate margin above the 3.3 V nominal signaling level, and its <1 ns response time ensures clamping activation prior to transceiver damage. Layout best practices-such as placing ESD5B5.0ST1G within 3 mm of the USB connector-are essential for optimal performance.
Does ESD5B5.0ST1G meet automotive qualification standards?
The base ESD5B5.0ST1G is not AEC-Q101 qualified; however, its automotive-grade variant SZESD5B5.0ST1G is fully AEC-Q101 qualified and PPAP capable. Both share identical electrical specifications and SOD-523 packaging, differing only in traceability, lot control, and extended temperature validation. For automotive infotainment audio ports, SZESD5B5.0ST1G must be specified to satisfy OEM requirements.
What is the thermal limit for reflow soldering of ESD5B5.0ST1G?
ESD5B5.0ST1G supports lead-free reflow soldering with a maximum peak temperature of 260 °C for 10 seconds, complying with IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) 1. The device's thermosetting plastic package and matte tin lead finish ensure robust thermal performance during standard SMT processes. Pre-baking is unnecessary for MSL 1 devices, but humidity exposure time should still be controlled per JEDEC guidelines.
How does the bi-directional design of ESD5B5.0ST1G benefit audio line protection?
The bi-directional design of ESD5B5.0ST1G enables symmetrical clamping of both positive and negative ESD transients on AC-coupled audio paths-such as stereo headphone left/right channels-without requiring polarity-aware placement. This eliminates orientation errors during assembly and ensures consistent protection regardless of signal swing direction. In practice, this simplifies layout, reduces BOM count, and improves yield in high-volume portable audio products using ESD5B5.0ST1G.
ESD5B5.0ST1G 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
ESD5B5.0ST1G FAQ
1.How can I place an order for ESD5B5.0ST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD5B5.0ST1G 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 ESD5B5.0ST1G reliable?
The price and inventory of ESD5B5.0ST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD5B5.0ST1G is usually 5 days.
3.What payment methods are accepted for ESD5B5.0ST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD5B5.0ST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD5B5.0ST1G?
ESD5B5.0ST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD5B5.0ST1G 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 ESD5B5.0ST1G?
For technical support, including ESD5B5.0ST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD5B5.0ST1G requirements.
6.How does Aetrix verify that ESD5B5.0ST1G is sourced from the original manufacturer or authorized distributors?
All ESD5B5.0ST1G 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 ESD5B5.0ST1G meets industry standards.
7.What is the process for return or replacement of ESD5B5.0ST1G?
All ESD5B5.0ST1G units undergo pre-shipment inspection (PSI). If there is an issue with ESD5B5.0ST1G, 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 ESD5B5.0ST1G part is unused and in its original packaging.
Return procedure for ESD5B5.0ST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD5B5.0ST1G 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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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