My Inquiry
My Account
onsemi SZESD5B5.0ST5G
- Part No.:
- SZESD5B5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZESD5B5.0ST5G.pdf
- Description:
- TVS DIODE 5VWM SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:45,858
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZESD5B5.0ST5G from onsemi is a bi-directional ESD protection diode designed for audio line and high-speed data interface protection in portable electronics. It features a 5.0 V reverse working voltage, 32 pF capacitance, <1 ns response time, 7.8 V max clamping voltage at 1 A, and IEC 61000-4-2 Level 4 (±30 kV contact) compliance - enabling robust transient suppression in space-constrained USB, headset, and SIM card interfaces.
For engineers reviewing the SZESD5B5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include low-capacitance signal integrity preservation, automotive-grade AEC-Q101 qualification, SOD-523 footprint compatibility, and Class 3 HBM ESD rating (>16 kV) for handheld device front-end protection.
Technical Context
This device operates as a bi-directional TVS diode with symmetrical clamping behavior across both polarities, optimized for I/O line protection where signal fidelity and fast transient response are critical. Its 32 pF capacitance at 0 V ensures minimal distortion on audio and low-speed digital lines, while the 5.0 V VRWM aligns with 3.3 V and 5 V logic rail systems.
The SOD-523 package enables placement directly at connector entry points to minimize trace inductance, and its AEC-Q101 qualification confirms suitability for automotive infotainment and telematics modules requiring validated reliability under thermal cycling and humidity stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 5.0 V - matches 3.3 V/5 V system rails without leakage-induced bias shift |
| Clamping Voltage | 7.8 V max @ 1 A - limits transient overvoltage to safe levels for downstream ICs |
| Capacitance | 32 pF @ 0 V, 1 MHz - preserves signal integrity on audio and low-speed data lines |
| ESD Rating | ±30 kV contact per IEC 61000-4-2 Level 4 - exceeds industrial and automotive immunity requirements |
| Response Time | <1 ns - engages before sensitive circuitry sustains damage during ESD events |
| HBM ESD Class | Class 3 (>16 kV) - qualifies for high-reliability consumer and automotive end equipment |
| Peak Pulse Power | 50 W @ 8 × 20 μs - handles multiple ESD strikes without degradation |
Pinout & Package
Package: SOD-523 (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 terminal (bi-directional) | Connects to protected line; conducts during negative transients |
| Cathode (Pin 2) | Input/Output terminal (bi-directional) | Connects to protected line; conducts during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Protects AC-coupled lines (e.g., stereo audio, USB D+/D−) without polarity constraints |
| AEC-Q101 qualification | Validated for automotive infotainment, telematics, and ADAS sensor interfaces |
| Low 32 pF capacitance | Enables use on 20 kHz–10 MHz signals without attenuation or phase shift |
| Small 1.6 × 0.8 mm footprint | Allows placement within 2 mm of connectors to minimize PCB inductance path |
| ±30 kV IEC 61000-4-2 rating | Meets stringent EMC requirements for CE/FCC certification of portable devices |
Applications
| Smartphone Audio Jack Protection | Automotive Infotainment Headset Interface |
|---|---|
Use Scenario: Protecting 3.5 mm TRRS headset jack from user-hand ESD during plug insertion/removal. IC Role / Device Role / Timing Role: Bi-directional transient voltage suppressor placed directly at jack solder pad. Use Value: 32 pF capacitance avoids audio band attenuation; ±30 kV contact rating prevents latch-up in codec ICs. | Use Scenario: Shielding analog audio inputs in vehicle head units from ESD induced by passenger interaction. IC Role / Device Role / Timing Role: Front-end ESD clamp on differential audio lines between amplifier and connector. Use Value: AEC-Q101 qualification ensures operation across −40 °C to +125 °C ambient; 5.0 V VRWM matches supply rail. |
| USB 2.0 Data Line Protection | SIM Card Slot ESD Suppression |
Use Scenario: Guarding D+ and D− lines against ESD during cable hot-plug in portable accessories. IC Role / Device Role / Timing Role: Dual-channel discrete ESD diode (one per line) with matched capacitance. Use Value: 32 pF ensures <1% signal rise-time degradation at 480 Mbps; SOD-523 allows dual placement near USB connector. | Use Scenario: Preventing ESD damage to SIM controller pins during card insertion in mobile hotspots and telematics modules. IC Role / Device Role / Timing Role: Point-of-entry protection on VCC, I/O, and CLK lines of SIM socket. Use Value: 50 W peak power rating withstands repeated contact discharges; low leakage (<1 μA) avoids battery drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5B5.0ST5G | Same electrical specs, non-automotive grade, standard onsemi marking | Lacks AEC-Q101 qualification; suitable for consumer-only designs | Select when automotive qualification is not required and cost sensitivity is higher |
| TPD2E001DRYR | Lower capacitance (13 pF), higher VRWM (5.5 V), dual-channel in SOT-553 | Better for high-speed USB 2.0; requires different layout due to 5-pin package | Choose for tighter signal integrity budgets where board space permits larger footprint |
Compared with ESD5B5.0ST5G and TPD2E001DRYR, SZESD5B5.0ST5G uniquely combines AEC-Q101 qualification, ultra-small SOD-523 size, and proven 32 pF/5.0 V performance for cost-sensitive automotive and premium consumer audio interfaces - making it optimal where footprint, qualification, and balanced capacitance are jointly constrained.
Availability
SZESD5B5.0ST5G is available at Aetrix Electronics and suitable for smartphone audio jack protection, automotive infotainment headset interfaces, and USB 2.0 data line protection requiring stable component supply across high-volume production cycles.
Supply support for SZESD5B5.0ST5G 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 is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
SZESD5B5.0ST5G belongs to the ESD5B Series - a family of micro-packaged bi-directional ESD protection diodes engineered specifically for high-density portable electronics requiring minimal capacitance and maximum transient immunity.
FAQ
What is the clamping voltage of SZESD5B5.0ST5G under IEC 61000-4-2 ESD stress?
The SZESD5B5.0ST5G exhibits a maximum clamping voltage of 7.8 V at 1 A peak pulse current, measured per IEC 61000-4-2 waveform conditions. This value is confirmed in the Electrical Characteristics table of the official onsemi datasheet (Rev. 8, Feb 2024) and ensures downstream ICs remain below absolute maximum ratings during ±8 kV contact discharge events. The SZESD5B5.0ST5G maintains consistent clamping performance across both polarities due to its bi-directional architecture.
Is SZESD5B5.0ST5G qualified for automotive applications?
Yes, SZESD5B5.0ST5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the onsemi datasheet. The "SZ" prefix denotes automotive-grade manufacturing controls and site-specific change management. It meets temperature cycling, humidity resistance, and ESD survivability requirements defined in AEC-Q101, making SZESD5B5.0ST5G suitable for infotainment, telematics, and body control modules where reliability under extended thermal and mechanical stress is mandatory.
What package type does SZESD5.0ST5G use, and what are its dimensions?
SZESD5B5.0ST5G uses the SOD-523 package (Case 502), with nominal dimensions of 1.6 mm × 0.8 mm × 0.6 mm. This ultra-compact outline is specified in the Mechanical Characteristics section of the onsemi datasheet and supports high-density PCB layouts. The package features void-free transfer-molded thermosetting plastic meeting UL 94 V-0, 100% matte tin lead finish, and MSL 1 moisture sensitivity rating - all verified in the official documentation for SZESD5B5.0ST5G.
How does the capacitance of SZESD5B5.0ST5G affect audio signal integrity?
SZESD5B5.0ST5G's 32 pF capacitance (measured at 0 V, 1 MHz) introduces negligible loading on audio-band signals up to 20 kHz, preserving frequency response and stereo channel balance. This value is low enough to avoid attenuation or phase shift in headphone driver outputs and microphone preamp inputs. The datasheet confirms this capacitance is stable across bias, ensuring predictable performance in AC-coupled audio paths - a key reason SZESD5B5.0ST5G is recommended for cellular phone and MP3 player audio line protection.
What is the peak pulse power rating of SZESD5B5.0ST5G, and how is it tested?
SZESD5B5.0ST5G has a peak pulse power rating of 50 W, tested using an 8 × 20 μs current waveform per Figure 1 in the onsemi datasheet. This rating reflects the device's ability to absorb transient energy without failure during standardized ESD events. The 50 W value is validated under controlled lab conditions matching IEC 61000-4-2 test methodology and correlates directly to the device's capability to survive repeated ±8 kV contact discharges - a specification rigorously documented for SZESD5B5.0ST5G in the Maximum Ratings table.
SZESD5B5.0ST5G 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:
- -
- Capacitance @ Frequency:
- 32pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZESD5B5.0ST5G FAQ
1.How can I place an order for SZESD5B5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD5B5.0ST5G 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 SZESD5B5.0ST5G reliable?
The price and inventory of SZESD5B5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD5B5.0ST5G is usually 5 days.
3.What payment methods are accepted for SZESD5B5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD5B5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD5B5.0ST5G?
SZESD5B5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD5B5.0ST5G 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 SZESD5B5.0ST5G?
For technical support, including SZESD5B5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD5B5.0ST5G requirements.
6.How does Aetrix verify that SZESD5B5.0ST5G is sourced from the original manufacturer or authorized distributors?
All SZESD5B5.0ST5G 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 SZESD5B5.0ST5G meets industry standards.
7.What is the process for return or replacement of SZESD5B5.0ST5G?
All SZESD5B5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD5B5.0ST5G, 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 SZESD5B5.0ST5G part is unused and in its original packaging.
Return procedure for SZESD5B5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD5B5.0ST5G 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…
