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Diodes Incorporated D12V0H2U3SO-7
- Part No.:
- D12V0H2U3SO-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
D12V0H2U3SO-7.pdf
- Description:
- Dataline Protection PP SOT23 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
D12V0H2U3SO from Diodes Incorporated is a dual unidirectional ESD protection diode array designed for data line and interface port protection in portable electronics and communication systems. It features 14.2 V minimum breakdown voltage, 12 A peak pulse current (8/20 µs), 78 pF typical channel capacitance, and ±8 kV contact / ±15 kV air ESD immunity per IEC 61000-4-2 - deployed to safeguard USB, HDMI, and audio interfaces against transient overvoltage events.
For engineers reviewing the D12V0H2U3SO datasheet, D12V0H2U3SO pinout, D12V0H2U3SO application, or D12V0H2U3SO equivalent, key selection criteria include clamping voltage at 12 A (25 V), ultra-low leakage (<1 µA at 12 V), SOT23 package compatibility, and dual-channel unidirectional topology for rail-to-rail signal line protection.
Technical Context
This device implements two independent unidirectional TVS structures in a single SOT23-3L package, each configured with anode-to-VCC and cathode-to-GND path for positive transient clamping and cathode-to-GND conduction for negative transients. Its 78 pF input capacitance and 12 V standoff voltage are optimized for high-speed digital interfaces up to 100 Mbps without signal integrity degradation.
The 300 W peak power rating (8/20 µs) and 25 V clamping voltage at 12 A ensure robust protection against system-level ESD events while maintaining low thermal resistance (500 °C/W) on standard FR-4 PCB layouts. It operates across –55 °C to +125 °C and meets RoHS 3, halogen-free, and lead-free compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 14.2 V min - ensures reliable triggering above 12 V logic supply without false activation during normal operation |
| Clamping Voltage (VCL) | 25 V max at 12 A - limits transient voltage seen by downstream ICs to safe levels during worst-case ESD strikes |
| Peak Pulse Current (IPP) | 12 A (8/20 µs) - supports full IEC 61000-4-2 Level 4 immunity testing with margin |
| Channel Capacitance (CT) | 78 pF typ - preserves signal integrity on USB 2.0 and audio lines without excessive rise-time degradation |
| Leakage Current (IRM) | <1 µA @ 12 V - prevents DC loading of sensitive analog or low-power digital inputs |
| ESD Rating | ±8 kV contact / ±15 kV air - certified to IEC 61000-4-2, eliminating need for external ESD test validation |
Pinout & Package
Package: SOT23-3L - surface-mount, 3-pin plastic package with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, weight ≈ 0.009 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connected to protected signal line; conducts during positive transients toward VCC |
| Pin 2 | Cathode of Channel 1 / Anode of Channel 2 | Shared node; ties to VCC for unidirectional clamping or floats for bidirectional mode |
| Pin 3 | Cathode of Channel 2 | Connected to GND; provides return path for negative transients and completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional ESD protection | Enables independent protection of two signal lines (e.g., D+ and D−) with rail-referenced clamping |
| 300 W peak pulse power (8/20 µs) | Sustains repeated ESD strikes without parametric shift or failure under system-level stress conditions |
| Ultra-low leakage (<1 µA @ VRWM) | Prevents battery drain and signal offset in always-on portable interfaces such as headset jacks |
| 78 pF channel capacitance | Supports 480 Mbps USB 2.0 signaling with <5% eye diagram distortion at 240 MHz fundamental |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting USB data lines (D+, D−) in smartphones and docking stations from user-hand ESD events. IC Role / Device Role / Timing Role: Unidirectional clamping diode array placed between connector and PHY, referenced to 3.3 V VCC. Use Value: Limits transient voltage to ≤25 V during ±15 kV air discharge, preserving PHY latch-up immunity and signal fidelity. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) in monitors and set-top boxes. IC Role / Device Role / Timing Role: Dual-channel ESD suppressor tied to 5 V pull-up rails, clamping both lines independently. Use Value: Maintains I²C timing integrity with 78 pF loading while passing ±8 kV contact discharge per line. |
| Audio Jack ESD Protection | Industrial Serial Port Protection |
Use Scenario: Shielding 3.5 mm TRRS headset jack signals (MIC, HP_L, HP_R) in tablets and wearables. IC Role / Device Role / Timing Role: Single D12V0H2U3SO protects two differential audio paths using shared VCC reference. Use Value: Prevents pop-noise and codec damage via sub-1 µA leakage and fast 14.2 V breakdown response. | Use Scenario: Hardening RS-232/RS-485 transceiver I/O pins in factory automation gateways. IC Role / Device Role / Timing Role: Front-end ESD guard on isolated UART lines operating at 12 V logic levels. Use Value: Withstands industrial environment ESD without derating - validated at –55 °C to +125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRSR | Single-channel, 14 V VBR, 12 A IPP, 12 pF CT, SOT-5X3 | Lower capacitance but only one channel; requires two devices for dual-line protection | Select when ultra-low capacitance is critical and board space allows dual placement |
| SMAJ12A | Single unidirectional TVS, 12 V VBR, 23.5 A IPP, 250 pF CT, SMA package | Higher power handling but much higher capacitance and larger footprint | Choose for high-energy surge environments where speed and size are secondary to energy absorption |
Compared with TPD2E001DRSR and SMAJ12A, D12V0H2U3SO uniquely balances dual-channel integration, 78 pF capacitance, and SOT23-3L compactness - making it optimal for space-constrained, high-volume portable interfaces requiring certified IEC 61000-4-2 protection.
Availability
D12V0H2U3SO is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line hardening, and audio jack ESD mitigation requiring stable component supply and consistent parametric performance across production lots.
Supply support for D12V0H2U3SO 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
This device belongs to Diodes' DIODES™ ESD Protection portfolio, engineered specifically for high-speed data line protection in consumer, computing, and industrial electronics where compact size, low capacitance, and IEC-certified immunity are mandatory.
FAQ
What is the maximum clamping voltage of D12V0H2U3SO at 12 A?
The maximum clamping voltage is 25 V under 8/20 µs waveform conditions at 12 A peak pulse current, as specified in the Electrical Characteristics table on page 2 of DS43687 Rev. 1–2. This value is measured with defined test fixtures and represents worst-case voltage seen by protected circuitry during full IEC 61000-4-2 Level 4 ESD events.
Can D12V0H2U3SO be used in bidirectional ESD protection mode?
Yes - by connecting only Pin 1 to the signal line and leaving Pin 2 unconnected (floating), the device functions as a bidirectional suppressor. In this configuration, both internal diodes conduct during positive and negative transients relative to ground, achieving symmetrical clamping without external biasing.
Is D12V0H2U3SO qualified for automotive applications?
No - D12V0H2U3SO is not AEC-Q200 qualified. Diodes Incorporated explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for commercial and industrial use only, with operating temperature range –55 °C to +125 °C but no automotive qualification documentation.
What is the recommended PCB pad layout for SOT23-3L mounting?
Diodes specifies a standardized SOT23 pad layout with dimensions: X = 0.8 mm, X1 = 1.35 mm, Y = 0.9 mm, Y1 = 2.9 mm, and C = 2.0 mm center-to-center spacing. This layout ensures optimal thermal dissipation and solder joint reliability, and is published at www.diodes.com/package-outlines.html for verified Gerber compatibility.
D12V0H2U3SO-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 14.2V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 12A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 78pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
D12V0H2U3SO-7 FAQ
1.How can I place an order for D12V0H2U3SO-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D12V0H2U3SO-7 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 D12V0H2U3SO-7 reliable?
The price and inventory of D12V0H2U3SO-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D12V0H2U3SO-7 is usually 5 days.
3.What payment methods are accepted for D12V0H2U3SO-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D12V0H2U3SO-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D12V0H2U3SO-7?
D12V0H2U3SO-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D12V0H2U3SO-7 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 D12V0H2U3SO-7?
For technical support, including D12V0H2U3SO-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D12V0H2U3SO-7 requirements.
6.How does Aetrix verify that D12V0H2U3SO-7 is sourced from the original manufacturer or authorized distributors?
All D12V0H2U3SO-7 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 D12V0H2U3SO-7 meets industry standards.
7.What is the process for return or replacement of D12V0H2U3SO-7?
All D12V0H2U3SO-7 units undergo pre-shipment inspection (PSI). If there is an issue with D12V0H2U3SO-7, 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 D12V0H2U3SO-7 part is unused and in its original packaging.
Return procedure for D12V0H2U3SO-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D12V0H2U3SO-7 Tags
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