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onsemi SZESD9M5.0ST5G
- Part No.:
- SZESD9M5.0ST5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
SZESD9M5.0ST5G.pdf
- Description:
- SOD-923 EUT SNGL CPR PBF
- Quantity:
- Payment:
- Shipping:
Inventory:6,948
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Product details
Overview
SZESD9M5.0ST5G from onsemi is a unidirectional ESD protection diode designed for high-speed data lines, featuring 2.5 pF capacitance, 5.0 V stand-off voltage, 9.8 V clamping voltage at 1 A, <1.0 ns response time, and IEC61000-4-2 Level 4 (±15 kV air/±10 kV contact) compliance - deployed in USB 2.0 interfaces to safeguard transceivers from electrostatic discharge.
For engineers reviewing the SZESD9M5.0ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, sub-10 V clamping under 1 A ESD pulse, SOD-923 footprint compatibility, AEC-Q101 qualification for automotive infotainment ports, and Pb-free reflow compatibility up to 260°C.
Technical Context
This device operates as a unidirectional transient voltage suppressor with cathode-anode polarity, optimized for low-capacitance signal line protection. Its clamping behavior is defined per IEC61000-4-2 waveform (8/20 µs surge), delivering 9.8 V max clamping at 1 A peak pulse current while maintaining 5.0 V working reverse voltage and 1.0 µA max leakage at VRWM.
The SOD-923 package enables integration into space-constrained layouts for USB, HDMI, and audio jack interfaces. It meets MSL 1 moisture sensitivity, supports 260°C peak reflow, and uses 100% matte tin lead finish on void-free thermoset epoxy meeting UL 94 V-0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 2.5 pF at 0 V, 1 MHz - preserves signal integrity on USB 2.0 (480 Mbps) and other high-speed serial links |
| Stand-off Voltage | 5.0 V - blocks normal operating voltage while enabling conduction during ESD events above threshold |
| Clamping Voltage | 9.8 V max at IPP = 1 A - limits transient overvoltage seen by protected IC to safe level during IEC61000-4-2 contact discharge |
| ESD Rating | ±15 kV air / ±10 kV contact per IEC61000-4-2 Level 4 - exceeds industrial and automotive port immunity requirements |
| Response Time | <1.0 ns - activates before sensitive transceiver input stages are stressed by fast-rising ESD pulses |
| Leakage Current | 1.0 µA max at 5.0 V - avoids DC loading of bias-sensitive analog or reference circuits |
| Package | SOD-923 (1.00 × 0.60 × 0.37 mm) - enables 0201-compatible layout with minimal PCB area and parasitic inductance |
Pinout & Package
SOD-923 surface-mount package: 2-terminal, ultra-compact outline (1.00 mm × 0.60 mm × 0.37 mm), cathode marked with polarity band, void-free thermoset epoxy body rated UL 94 V-0, matte tin lead finish, MSL 1, 260°C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected Line Connection | Connected to high-speed signal line (e.g., USB D+); conducts during positive ESD transients to ground |
| 2 (Anode) | Ground Reference | Tied to system ground plane; provides low-inductance return path for ESD current during both polarities |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 2.5 pF enables use on 480 Mbps USB 2.0 without measurable signal degradation or eye diagram closure |
| AEC-Q101 qualified | SZ-prefix variant certified for automotive infotainment and telematics ports requiring robust ESD immunity |
| Pb-free & RoHS compliant | Meets global environmental regulations; matte Sn finish ensures reliable solderability and intermetallic formation |
| Low clamping voltage | 9.8 V max at 1 A protects 5 V-tolerant I/O cells (e.g., USB PHYs) without latch-up or oxide damage |
Applications
| USB 2.0 Interface Protection | HDMI Hot-Plug Detection Line |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against user-handling ESD events. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between signal line and ground, activated only during overvoltage transients. Use Value: 2.5 pF capacitance avoids USB 2.0 eye mask violations; 9.8 V clamping prevents PHY damage during ±8 kV contact discharge. | Use Scenario: Safeguarding HDMI HPD (Hot-Plug Detect) line from ESD during cable insertion/removal. IC Role / Device Role / Timing Role: Standby-mode protector on open-drain HPD signal, blocking 5 V logic but clamping transients to <10 V. Use Value: 5.0 V stand-off voltage matches HDMI 5 V HPD pull-up; low leakage (<1 µA) avoids false plug/unplug detection. |
| Automotive Infotainment USB Port | Smartphone Audio Jack ESD Guard |
Use Scenario: ESD hardening of front-panel USB ports in automotive head units exposed to dry-climate static discharge. IC Role / Device Role / Timing Role: AEC-Q101-qualified transient suppressor mounted directly at connector, minimizing trace inductance. Use Value: ±15 kV air discharge rating meets ISO 10605 requirements; SOD-923 footprint fits tight connector keep-out zones. | Use Scenario: Protecting microphone and headset detect lines in 3.5 mm TRRS jacks from user-induced ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional guard (using two devices) on MIC_BIAS and SLEEP lines. Use Value: Sub-1 ns response captures fast human-body-model discharges; 0.37 mm height avoids jack mechanical interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9B5.0ST5G | Bidirectional configuration; same 2.5 pF capacitance and 5.0 V stand-off, but symmetric clamping (~12 V both polarities) | Suitable for AC-coupled or floating lines where polarity is undefined (e.g., audio differential pairs) | Select when protecting non-polarized signals; SZESD9M5.0ST5G remains preferred for DC-biased unidirectional lines like USB D+/D− |
| CM1213A-03SR | 3-channel array in SOT-143; 3.5 pF per channel; 3.3 V stand-off; 12 V clamping at 1 A | Offers multi-line protection in single package; higher capacitance limits use to ≤100 Mbps interfaces | Choose for compact multi-line guarding (e.g., HDMI DDC lines); SZESD9M5.0ST5G delivers lower capacitance for highest-speed single-line needs |
Compared with ESD9B5.0ST5G and CM1213A-03SR, SZESD9M5.0ST5G provides the lowest capacitance (2.5 pF) and tightest clamping (9.8 V) for unidirectional 5 V-biased high-speed lines, making it optimal for USB 2.0 and automotive infotainment ports where signal fidelity and strict voltage limiting are critical.
Availability
SZESD9M5.0ST5G is available at Aetrix Electronics and suitable for USB interface protection, automotive infotainment ports, and smartphone audio jack ESD hardening requiring stable component supply across production lifecycles.
Supply support for SZESD9M5.0ST5G 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 focused on energy-efficient technologies for automotive, industrial, cloud, and intelligent edge applications.
The ESD9M Series, including SZESD9M5.0ST5G, is engineered specifically for ultra-low-capacitance ESD protection of high-speed digital interfaces in space-constrained, reliability-critical systems.
FAQ
What is the polarity configuration of SZESD9M5.0ST5G?
SZESD9M5.0ST5G is a unidirectional ESD protection diode with cathode (pin 1) connected to the protected signal line and anode (pin 2) tied to ground. This configuration allows conduction only during positive transients on the signal line relative to ground, matching the DC bias of interfaces like USB D+ and HDMI HPD.
Does SZESD9M5.0ST5G meet automotive qualification standards?
Yes, the SZ prefix in SZESD9M5.0ST5G indicates AEC-Q101 qualification and PPAP capability. It is rated for junction temperatures from −55°C to +150°C and validated for ESD robustness per IEC61000-4-2 Level 4, making it suitable for automotive infotainment and telematics port protection.
What is the maximum clamping voltage of SZESD9M5.0ST5G under IEC61000-4-2 stress?
The maximum clamping voltage of SZESD9M5.0ST5G is 9.8 V when subjected to a 1 A peak pulse current per the IEC61000-4-2 waveform. This value is measured across the device terminals during standardized ESD testing and ensures protected ICs remain below destructive voltage thresholds.
Can SZESD9M5.0ST5G be used on bidirectional signal lines?
SZESD9M5.0ST5G is unidirectional and not recommended for inherently bidirectional lines without external biasing. For true bidirectional protection (e.g., audio differential pairs), the bidirectional ESD9B5.0ST5G - sharing the same SOD-923 package and 2.5 pF capacitance - is the appropriate alternative.
What is the moisture sensitivity level and reflow profile for SZESD9M5.0ST5G?
SZESD9M5.0ST5G meets MSL 1 (unlimited floor life) and supports standard Pb-free reflow with a peak temperature of 260°C for 10 seconds. Its SOD-923 package uses void-free thermoset epoxy rated UL 94 V-0 and 100% matte tin lead finish for reliable solder joint formation.
SZESD9M5.0ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOD-923
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- 9.8V
- Current - Peak Pulse (10/1000µs):
- 1A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 2.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
SZESD9M5.0ST5G FAQ
1.How can I place an order for SZESD9M5.0ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD9M5.0ST5G 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 SZESD9M5.0ST5G reliable?
The price and inventory of SZESD9M5.0ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD9M5.0ST5G is usually 5 days.
3.What payment methods are accepted for SZESD9M5.0ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD9M5.0ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD9M5.0ST5G?
SZESD9M5.0ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD9M5.0ST5G 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 SZESD9M5.0ST5G?
For technical support, including SZESD9M5.0ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD9M5.0ST5G requirements.
6.How does Aetrix verify that SZESD9M5.0ST5G is sourced from the original manufacturer or authorized distributors?
All SZESD9M5.0ST5G 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 SZESD9M5.0ST5G meets industry standards.
7.What is the process for return or replacement of SZESD9M5.0ST5G?
All SZESD9M5.0ST5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD9M5.0ST5G, 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 SZESD9M5.0ST5G part is unused and in its original packaging.
Return procedure for SZESD9M5.0ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD9M5.0ST5G Tags
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DESD3V3E1BL-7B
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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