Diodes Incorporated D12V0HA1U2LPQ-7B
- Part No.:
- D12V0HA1U2LPQ-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
D12V0HA1U2LPQ-7B.pdf
- Description:
- SURGE PROTECTION PP X1-DFN1006-2
- Quantity:
- Payment:

- Shipping:

Inventory:39,574
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Product details
Overview
D12V0HA1U2LPQ from Diodes Incorporated is a unidirectional transient voltage suppression (TVS) diode designed for ESD and surge protection on signal lines in portable electronics. It features a 12.0 V reverse working voltage, 13.5 V minimum breakdown voltage, 25 A peak pulse current (8/20 µs), 110 pF typical junction capacitance, and ±30 kV IEC 61000-4-2 ESD rating - deployed in USB, audio, and data lines of smartphones and digital cameras.
For engineers reviewing the D12V0HA1U2LPQ datasheet, D12V0HA1U2LPQ pinout, D12V0HA1U2LPQ application, or D12V0HA1U2LPQ equivalent, key selection criteria include clamping voltage at 25 A (≤20 V), low-profile X1-DFN1006-2 package compatibility with high-density PCB layouts, automotive-grade AEC-Q101 qualification, and IEC 61000-4-5 surge compliance.
Technical Context
This TVS diode operates as a unidirectional clamping device, conducting only during positive transients relative to its cathode (Pin 2). Its silicon avalanche structure enables fast response (<1 ns) to ESD events and robust 500 W peak pulse power handling under 8/20 µs surge waveforms.
It is optimized for low-capacitance signal-line protection: 110 pF at 0 V allows use on high-speed interfaces without signal integrity degradation. The device's thermal resistance (500 °C/W) and 250 mW steady-state power dissipation are validated on standard FR-4 PCB land patterns per Diodes' recommended layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage (VRWM) | 12.0 V - Maximum continuous DC or RMS voltage before leakage exceeds 0.1 µA; sets upper limit for protected line operating voltage. |
| Breakdown Voltage (VBR) | 13.5 V (min) - Avalanche conduction initiates reliably above this threshold, ensuring consistent turn-on during transients. |
| Clamping Voltage (VCL) | 20 V @ 25 A - Maximum voltage seen by downstream circuitry during worst-case 8/20 µs surge; defines protection level. |
| Junction Capacitance (CT) | 110 pF @ 0 V, 1 MHz - Low enough for USB 2.0 and audio paths; avoids signal attenuation or timing skew. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact / ±30 kV air - Meets highest industrial ESD immunity class, eliminating need for external ESD staging. |
| Surge Rating (IEC 61000-4-5) | 25 A (8/20 µs) - Supports Level 3–4 lightning-induced surge protection in compact consumer ports. |
| AEC-Q101 Qualified | Yes - Validated for automotive infotainment and telematics modules requiring change-controlled manufacturing and PPAP support. |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.0 mm × 0.6 mm outline with 0.50 mm profile, NiPdAu-plated copper leadframe, and halogen-free green molding compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connected to protected signal line; conducts transient current toward ground when voltage exceeds VBR. |
| Pin 2 | Cathode | Connected to system ground; serves as reference node for clamping action and ESD return path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 0.50 mm height - Enables placement beneath connectors and in stacked-board assemblies without mechanical interference. |
| Automotive-grade qualification | AEC-Q101 qualified + IATF 16949 manufacturing - Supports direct integration into Tier-1 automotive infotainment and ADAS sensor interfaces. |
| High ESD immunity | ±30 kV contact discharge - Eliminates need for secondary ESD filters in handheld device button, touchscreen, and microphone circuits. |
| Lead-free & green compliance | RoHS 3 compliant, <900 ppm Br/Cl, <1000 ppm Sb - Meets EU environmental mandates without compromising surge performance. |
| Moisture sensitivity level | MSL 1 (per J-STD-020) - No bake requirement prior to reflow; compatible with standard SMT assembly lines. |
Applications
| USB 2.0 Data Lines | Smartphone Audio Jacks |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD from user insertion/removal of cables and accessories. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between connector and PHY IC to shunt transients before they reach the transceiver. Use Value: 110 pF capacitance preserves signal rise/fall times; 20 V clamping prevents PHY latch-up or damage during ±30 kV contact discharge. | Use Scenario: Shielding microphone and headset detection pins from ESD during plug insertion and hot plugging. IC Role / Device Role / Timing Role: Standalone TVS on analog audio paths, referenced to ground, with no impact on DC bias or AC coupling. Use Value: 12.0 V VRWM matches typical audio codec bias rails; low leakage (<0.1 µA) avoids DC offset errors in sensitive mic preamps. |
| Automotive Infotainment USB | Digital Camera HDMI Interface |
Use Scenario: Securing USB Type-C ports in vehicle head units exposed to cabin ESD and load-dump induced surges. IC Role / Device Role / Timing Role: AEC-Q101-qualified TVS on VBUS and CC lines, providing dual-layer ESD/surge defense per ISO 10605 and IEC 61000-4-5. Use Value: Validated PPAP capability and traceable sourcing ensure supply continuity for OEM production programs with strict change control. | Use Scenario: Guarding HDMI TMDS clock and data pairs against ESD during cable mating in compact camera bodies. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to HDMI connector, grounded via shortest possible path to minimize loop inductance. Use Value: 110 pF CT avoids HDMI 1.4 eye diagram closure; 25 A surge rating withstands repeated hot-plug transients without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | DO-214AC package (4.5 mm × 3.3 mm); 12 V VRWM; 27.7 V VCL @ 25 A; 150 pF CT | Larger footprint; higher clamping voltage; unsuitable for space-constrained portable designs | Select when board area is unconstrained and higher surge margin is prioritized over capacitance. |
| SP1003-010 | SOD-323 package (1.7 mm × 1.25 mm); 12 V VRWM; 19.5 V VCL @ 25 A; 100 pF CT; non-AEC-Q101 | Lower clamping and capacitance, but lacks automotive qualification and PPAP support | Select for cost-sensitive consumer devices where AEC-Q101 is not required. |
Compared with SMAJ12A and SP1003-010, D12V0HA1U2LPQ uniquely balances ultra-small X1-DFN1006-2 size, 20 V clamping at 25 A, 110 pF capacitance, and full AEC-Q101 qualification - making it optimal for next-gen automotive USB and high-density portable interfaces.
Availability
D12V0HA1U2LPQ is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone audio jack hardening, and automotive infotainment port surge suppression requiring stable component supply across design-in, NPI, and volume production phases.
Supply support for D12V0HA1U2LPQ 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 North America.
This device belongs to Diodes' X1-DFN series of ultra-compact TVS diodes, engineered specifically for high-density portable and automotive electronics where board space, ESD robustness, and qualification rigor are critical.
FAQ
What is the polarity configuration of D12V0HA1U2LPQ?
D12V0HA1U2LPQ is a unidirectional TVS diode with Pin 1 as anode and Pin 2 as cathode. It clamps only positive transients applied to Pin 1 relative to Pin 2 (ground), making it suitable for DC-biased signal lines like USB D+ or audio outputs. Reverse polarity operation is not supported.
Does D12V0HA1U2LPQ require a heatsink in normal operation?
No heatsink is required. With a thermal resistance of 500 °C/W and 250 mW maximum steady-state power dissipation, the device operates within safe junction temperature limits (<150 °C) when mounted on standard 2 oz copper FR-4 pads per Diodes' recommended layout. Derating applies only above +70 °C ambient.
Can D12V0HA1U2LPQ be used on bidirectional signal lines like RS-485?
No - D12V0HA1U2LPQ is unidirectional and cannot clamp negative transients. For bidirectional lines, a symmetric TVS pair or a dedicated bidirectional device such as D12V0HB1U2LPQ (its complementary variant) must be used. Using this part on bidirectional signals risks failure during negative ESD events.
Is the marking code "2U" sufficient for full traceability?
Yes - "2U" is the official top-side marking for D12V0HA1U2LPQ per Diodes' datasheet DS42989. Combined with reel labeling (D12V0HA1U2LPQ-7B), lot code, and date code, it enables full traceability to wafer lot, test data, and manufacturing facility per IATF 16949 requirements.
D12V0HA1U2LPQ-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 0402 (1006 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 20V (Typ)
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 110pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
D12V0HA1U2LPQ-7B FAQ
1.How can I place an order for D12V0HA1U2LPQ-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for D12V0HA1U2LPQ-7B 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 D12V0HA1U2LPQ-7B reliable?
The price and inventory of D12V0HA1U2LPQ-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D12V0HA1U2LPQ-7B is usually 5 days.
3.What payment methods are accepted for D12V0HA1U2LPQ-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D12V0HA1U2LPQ-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D12V0HA1U2LPQ-7B?
D12V0HA1U2LPQ-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D12V0HA1U2LPQ-7B 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 D12V0HA1U2LPQ-7B?
For technical support, including D12V0HA1U2LPQ-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D12V0HA1U2LPQ-7B requirements.
6.How does Aetrix verify that D12V0HA1U2LPQ-7B is sourced from the original manufacturer or authorized distributors?
All D12V0HA1U2LPQ-7B 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 D12V0HA1U2LPQ-7B meets industry standards.
7.What is the process for return or replacement of D12V0HA1U2LPQ-7B?
All D12V0HA1U2LPQ-7B units undergo pre-shipment inspection (PSI). If there is an issue with D12V0HA1U2LPQ-7B, 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 D12V0HA1U2LPQ-7B part is unused and in its original packaging.
Return procedure for D12V0HA1U2LPQ-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D12V0HA1U2LPQ-7B Tags

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Diodes Incorporated

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