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onsemi SZESD5Z12T5G
- Part No.:
- SZESD5Z12T5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZESD5Z12T5G.pdf
- Description:
- TVS DIODE 12VWM 25VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
SZESD5Z12T5G from onsemi is a unidirectional ESD protection diode in SOD-523 package, featuring 12 V working peak reverse voltage (VRWM), 25 V clamping voltage (VC) at 5 A IPP, 55 pF capacitance, and IEC 61000-4-2 Level 4 (±30 kV contact/air) compliance. It protects high-speed data lines in space-constrained portable electronics.
For engineers reviewing the SZESD5Z12T5G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping performance under 8/20 µs surge, low capacitance for USB 2.0 or audio line integrity, and AEC-Q101 qualification for automotive infotainment interfaces.
Technical Context
This device operates as a unidirectional transient voltage suppressor with avalanche breakdown behavior, triggered above its 14.1 V minimum breakdown voltage (VBR). Its fast <1 ns response time and low leakage (<10 nA at VRWM) enable reliable protection without signal distortion in low-voltage digital interfaces.
The SOD-523 package supports reflow soldering at 260 °C and meets MSL 1 requirements. Its 1.20 mm × 0.80 mm footprint and 0.7 mm height are optimized for PCB real estate savings in mobile and wearable designs where board area is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected line voltage. |
| VC @ IPP = 5 A | 25 V - Clamped voltage during 8/20 µs surge; determines maximum stress imposed on downstream ICs. |
| C @ 0 V, 1 MHz | 55 pF - Capacitance seen by signal path; low enough to avoid degradation in USB 2.0 (480 Mbps) or I²S audio lines. |
| IPP Max | 9.6 A - Peak pulse current survivability per IEC 61000-4-2; enables robustness against ±30 kV ESD events. |
| ESD Rating | Class 3 HBM (>16 kV) - Validated for human-body model discharge; exceeds JEDEC JS-001-2018 Class C3 threshold. |
| IEC 61000-4-4 | Level 4 (40 A) - Withstands electrical fast transients up to 40 A, critical for power supply rail and button-line immunity. |
Pinout & Package
Package: SOD-523 (Case 502), dimensions 1.20 mm × 0.80 mm × 0.70 mm, Pb-free matte tin lead finish, MSL 1, qualified for 260 °C reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Protected Line Input | Connected to I/O line requiring ESD suppression; cathode faces positive supply or higher-potential node. |
| 2 (Anode) | Ground Reference | Connected directly to system ground plane; forms low-inductance return path for transient current. |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Voltage | 25 V max at 5 A IPP ensures downstream ICs experience minimal overvoltage during ESD strikes. |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTOL, and ESD stress per JESD47. |
| IEC 61000-4-2 Level 4 | ±30 kV contact/air ESD immunity meets highest industrial and automotive interface requirements. |
| Ultra-Small Footprint | 1.20 mm × 0.80 mm SOD-523 saves >60% board area vs. SOT-23, enabling dense layout in smartphones and wearables. |
Applications
| USB 2.0 Data Lines | Automotive Infotainment Buttons |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in car head units and portable media players. IC Role / Device Role / Timing Role: Unidirectional ESD clamp placed between connector and PHY IC to shunt transients before they reach the transceiver. Use Value: 55 pF capacitance avoids signal rise-time degradation while 25 V clamping prevents PHY latch-up during ±30 kV ESD events. | Use Scenario: Shielding tactile buttons and capacitive touch sensors in vehicle dashboards from user-induced ESD. IC Role / Device Role / Timing Role: Standalone ESD suppressor on each button trace, referenced to chassis ground. Use Value: AEC-Q101 qualification ensures operation across −40 °C to +125 °C ambient, and 12 V VRWM matches typical 12 V automotive logic levels. |
| Smartphone Audio Jacks | Industrial Handheld Scanners |
Use Scenario: Safeguarding 3.5 mm TRRS headset jacks against repeated plug/unplug ESD in consumer handsets. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional diode (anode grounded) protecting left/right/ground/mic paths. Use Value: Low 10 nA leakage preserves battery life in always-on audio detection circuits; 0.7 mm height avoids mechanical interference with jack housing. | Use Scenario: Securing RS-232 or UART signal lines on ruggedized barcode scanners used in warehouses. IC Role / Device Role / Timing Role: Point-of-entry ESD guard on serial interface pins before level-shifting or MCU GPIOs. Use Value: 240 W peak power rating handles multiple EFT bursts per IEC 61000-4-4 Level 4, ensuring long-term field reliability under repetitive surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z12T5G | No AEC-Q101 qualification; same electrical specs and SOD-523 package. | Not suitable for automotive production; acceptable for commercial portable devices. | Select when automotive qualification is not required and cost sensitivity is higher. |
| TPD2E001DRYR | Bi-directional configuration; 15 pF capacitance; 12 V VRWM; 20 V VC @ 5 A; 0.65 mm × 0.65 mm DRY package. | Better suited for differential pairs (e.g., USB D+/D−) due to symmetrical clamping; lower capacitance improves high-speed fidelity. | Prefer for new USB 2.0 designs where bidirectional protection and sub-20 pF capacitance are prioritized. |
Compared with ESD5Z12T5G and TPD2E001DRYR, SZESD5Z12T5G provides automotive-grade reliability and higher surge robustness (9.6 A IPP vs. 5 A), but with higher capacitance-making it optimal for cost-sensitive, single-ended 12 V logic lines where AEC-Q101 compliance is mandatory.
Availability
SZESD5Z12T5G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial handheld scanners, and smartphone peripheral interfaces requiring stable component supply and long-term lifecycle support.
Supply support for SZESD5Z12T5G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The ESD5Z Series-including SZESD5Z12T5G-is engineered specifically for board-level ESD protection in ultra-compact, high-reliability portable and automotive electronics, emphasizing low capacitance, fast response, and AEC-Q101 validation.
FAQ
What is the clamping voltage of SZESD5Z12T5G under IEC 61000-4-2 ESD stress?
SZESD5Z12T5G exhibits a maximum clamping voltage of 25 V at 5 A peak pulse current (IPP), measured using the 8/20 µs waveform per IEC 61000-4-2. This value is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet Rev. 16 (February 2024), ensuring predictable overvoltage limiting for protected ICs during ±30 kV contact discharge events.
Is SZESD5Z12T5G suitable for USB 2.0 data line protection?
Yes, SZESD5Z12T5G is suitable for USB 2.0 data line protection due to its 55 pF capacitance at 0 V and 1 MHz, which falls within the USB-IF recommended limit (<100 pF) for full-speed operation. Its unidirectional configuration requires proper orientation (cathode toward the host/device IC), and its 25 V clamping voltage safeguards transceivers during ESD events without signal integrity loss.
Does SZESD5Z12T5G meet automotive qualification standards?
Yes, SZESD5Z12T5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the onsemi datasheet. The "SZ" prefix denotes automotive-grade manufacturing controls, including extended temperature operation (−55 °C to +150 °C junction), humidity testing, and accelerated life validation-making it appropriate for front-end ESD protection in automotive infotainment, ADAS sensors, and body control modules.
What is the package type and mounting specification for SZESD5Z12T5G?
SZESD5Z12T5G uses the SOD-523 package (Case 502), measuring 1.20 mm × 0.80 mm × 0.70 mm. It features 100% matte tin lead finish, qualifies for MSL 1 handling, and supports lead-free reflow up to 260 °C for 10 seconds. Mounting position is unrestricted, and the polarity band on Pin 1 identifies the cathode terminal.
How does SZESD5Z12T5G differ from ESD5Z12T5G?
SZESD5Z12T5G and ESD5Z12T5G share identical electrical specifications and SOD-523 packaging, but only SZESD5Z12T5G carries AEC-Q101 qualification and automotive-specific process controls. The "SZ" prefix indicates unique site and change control requirements mandated for automotive production, including enhanced traceability, lot-level PPAP documentation, and stricter process capability indices (Cpk ≥ 1.33).
SZESD5Z12T5G 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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 14.1V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 9.6A (8/20µs)
- Power - Peak Pulse:
- 240W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 55pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZESD5Z12T5G FAQ
1.How can I place an order for SZESD5Z12T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD5Z12T5G 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 SZESD5Z12T5G reliable?
The price and inventory of SZESD5Z12T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD5Z12T5G is usually 5 days.
3.What payment methods are accepted for SZESD5Z12T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD5Z12T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD5Z12T5G?
SZESD5Z12T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD5Z12T5G 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 SZESD5Z12T5G?
For technical support, including SZESD5Z12T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD5Z12T5G requirements.
6.How does Aetrix verify that SZESD5Z12T5G is sourced from the original manufacturer or authorized distributors?
All SZESD5Z12T5G 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 SZESD5Z12T5G meets industry standards.
7.What is the process for return or replacement of SZESD5Z12T5G?
All SZESD5Z12T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD5Z12T5G, 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 SZESD5Z12T5G part is unused and in its original packaging.
Return procedure for SZESD5Z12T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZESD5Z12T5G Tags
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ESD9B5.0ST5G
onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
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