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Diodes Incorporated D20V0S1U2LP20-7
- Part No.:
- D20V0S1U2LP20-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-UDFN
- Datasheet:
-
D20V0S1U2LP20-7.pdf
- Description:
- TVS DIODE 20VWM 37VC U-DFN2020-2
- Quantity:
- Payment:
- Shipping:
Inventory:2,627
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Product details
Overview
D20V0S1U2LP20-7 from Diodes Incorporated is a single-channel, ultra-low-capacitance TVS diode designed for ESD protection of high-speed data lines in portable electronics. It features a 20 V reverse standoff voltage, ±30 kV IEC 61000-4-2 contact/air ESD rating, 120 A peak pulse current (8/20 µs), and 880 pF channel input capacitance - optimized for USB 2.0, HDMI, and audio interfaces in smartphones and digital cameras.
For engineers reviewing the D20V0S1U2LP20-7 datasheet, D20V0S1U2LP20-7 pinout, D20V0S1U2LP20-7 application, or D20V0S1U2LP20-7 equivalent, key selection criteria include clamping voltage at 120 A (37.0 V), low leakage (200 nA @ 20 V), U-DFN2020-2 package footprint, and compliance with RoHS 3, halogen-free, and antimony-free "Green" standards.
Technical Context
This TVS diode operates as a unidirectional transient suppressor with cathode-anode polarity, triggered by reverse-biased avalanche breakdown above 22 V (VBR min). Its low 880 pF capacitance ensures minimal signal distortion on high-frequency I/O lines up to 480 Mbps (USB 2.0).
The device uses a silicon planar construction in a lead-free U-DFN2020-2 package with NiPdAu-plated terminals, enabling reflow compatibility and meeting J-STD-020 Level 1 moisture sensitivity. Thermal resistance is 250 °C/W (junction-to-ambient, FR-4 board), supporting continuous 500 mW power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 20 V - Maximum continuous operating voltage before clamping begins; matches 18–20 V supply rails in USB/HDMI interfaces. |
| Breakdown Voltage (VBR) | 22 V min @ 1 mA - Ensures reliable triggering margin above VRWM, preventing premature conduction during normal operation. |
| Clamping Voltage (IPP = 120 A) | 37.0 V - Limits transient voltage seen by protected ICs during lightning-surge-level events (IEC 61000-4-5). |
| ESD Rating (IEC 61000-4-2) | ±30 kV air / ±30 kV contact - Exceeds industrial immunity requirements for handheld consumer devices. |
| Channel Input Capacitance | 880 pF @ 0 V, 1 MHz - Preserves signal integrity on 480 Mbps USB 2.0 differential pairs without eye diagram degradation. |
| Leakage Current | 200 nA @ 20 V - Minimizes standby power loss in battery-powered systems such as MP3 players and wearables. |
| Package | U-DFN2020-2 - 2.0 × 2.0 mm, 0.6 mm height, 0.004 g weight; enables dense PCB layouts in slim mobile form factors. |
Pinout & Package
U-DFN2020-2 is a 2-terminal, bottom-terminated surface-mount package with exposed thermal pad (not electrically connected). Pin 1 is anode; Pin 2 is cathode (marked with dot). The device is unidirectional and must be oriented with cathode toward the protected line's positive rail.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Input/Line Terminal | Connected to signal line requiring ESD protection; conducts surge current to ground when clamped. |
| Pin 2 (Cathode) | Ground Reference | Connected to system ground plane; establishes reference for avalanche breakdown and defines clamping polarity. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD Protection | ±30 kV contact/air - Eliminates need for external spark gaps or multi-stage protection in Class 4 ESD environments. |
| Ultra-Low Input Capacitance | 880 pF - Enables direct integration on high-speed USB 2.0, HDMI, and MIPI D-PHY traces without impedance mismatch. |
| Lead-Free & Halogen-Free Construction | RoHS 3, <900 ppm Br/Cl, <1000 ppm Sb - Meets global environmental compliance mandates for consumer electronics exports. |
| Thermal Performance | 250 °C/W RθJA on FR-4 - Supports sustained operation at 500 mW under ambient temperatures up to +85 °C. |
Applications
| USB 2.0 Interface Protection | HDMI Port ESD Suppression |
|---|---|
Use Scenario: Protecting D+ and D− lines of smartphone USB ports against repeated electrostatic discharge during cable insertion. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between data line and ground, activated within nanoseconds of ESD event. Use Value: Maintains 480 Mbps signaling integrity while limiting transient voltage to ≤37 V at 120 A surge, preventing PHY layer latch-up. | Use Scenario: Shielding HDMI Type-A connector pins (TMDS+/-) in tablets against user-hand ESD during hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted adjacent to connector, referenced to chassis ground. Use Value: 880 pF capacitance avoids TMDS signal rise-time degradation, preserving 1080p60 video timing margins. |
| Mobile Audio Jack Protection | Digital Camera Data Lines |
Use Scenario: Guarding 3.5 mm TRRS headset jack mic and audio return paths in smartphones against pocket-generated ESD. IC Role / Device Role / Timing Role: Single-channel bidirectional-capable (via layout) clamp on each analog path, grounded to clean audio AGND. Use Value: 200 nA leakage prevents DC offset drift in audio amplifiers; 22 V VBR avoids false triggering during 1.8–3.3 V bias conditions. | Use Scenario: Safeguarding parallel camera interface signals (e.g., D0–D7, PCLK) in compact digital cameras during lens module mating. IC Role / Device Role / Timing Role: Point-of-entry TVS on each data line, placed within 3 mm of connector per IEC 61000-4-2 layout guidelines. Use Value: 120 A IPP rating handles multiple ESD strikes without parametric shift, ensuring long-term reliability in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package; 200 W PPP; 32.4 V clamping @ 12.5 A; 1000 pF typical capacitance | Larger footprint (4.5 × 2.7 mm); unsuitable for space-constrained USB 2.0 routing | Select only if board area permits and lower ESD rating (±30 kV not guaranteed) is acceptable. |
| TPD2E001DRYR | 2-channel, 12 pF per channel; 5.5 V VRWM; ±8 kV IEC 61000-4-2; 0.65 mm pitch DRY package | Designed for low-voltage logic (1.8–3.3 V); insufficient for 20 V rail protection | Use only for sub-6 V interfaces; not a functional replacement for 20 V standoff requirement. |
Compared with SMAJ20A and TPD2E001DRYR, D20V0S1U2LP20-7 uniquely balances 20 V standoff, ±30 kV ESD robustness, and 880 pF capacitance in a 2.0 × 2.0 mm footprint - making it the only viable option for compact, high-speed, 20 V-rail-protected interfaces like USB 2.0 and HDMI in portable designs.
Availability
D20V0S1U2LP20-7 is available at Aetrix Electronics and suitable for cellular handsets, portable electronics, and computers and peripheral applications requiring stable component supply, full RoHS 3 compliance, and verified IEC 61000-4-2 ±30 kV ESD performance.
Supply support for D20V0S1U2LP20-7 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 centers across Asia and manufacturing in China, Taiwan, and the US.
This device belongs to Diodes' "Ultra-Low Capacitance TVS" product line, engineered specifically for ESD protection of high-speed digital interfaces in space-constrained portable electronics without compromising signal fidelity.
FAQ
What is the polarity configuration of D20V0S1U2LP20-7?
D20V0S1U2LP20-7 is a unidirectional TVS diode with anode (Pin 1) and cathode (Pin 2) terminals. It conducts only during reverse-biased transients - i.e., when the cathode voltage exceeds the anode by ≥22 V. This configuration protects positive-rail-referenced signal lines such as USB D+ and HDMI TMDS+.
Does D20V0S1U2LP20-7 meet automotive AEC-Q200 requirements?
No. D20V0S1U2LP20-7 is qualified for commercial and industrial temperature ranges (–65 °C to +150 °C) but has not undergone AEC-Q200 stress testing. For automotive infotainment or ADAS applications, Diodes' AEC-Q200-qualified APxxxx series TVS devices should be used instead.
Can this device protect bidirectional data lines like I²C without additional components?
No. As a unidirectional device, D20V0S1U2LP20-7 only clamps negative transients relative to ground. For true bidirectional protection (e.g., I²C SDA/SCL), two devices in back-to-back configuration or a dedicated bidirectional TVS such as D24V0L1B2LP20-7 are required.
What is the maximum recommended PCB trace length between D20V0S1U2LP20-7 and the protected connector?
Per IEC 61000-4-2 layout guidance, the trace from the TVS cathode to the system ground plane must be ≤3 mm, and the distance from the protected line to the TVS anode must be ≤5 mm. Longer traces increase inductance, raising clamping voltage during fast ESD events and degrading protection effectiveness.
D20V0S1U2LP20-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V (Max)
- Voltage - Breakdown (Min):
- 22V
- Voltage - Clamping (Max) @ Ipp:
- 37V
- Current - Peak Pulse (10/1000µs):
- 120A (8/20µs)
- Power - Peak Pulse:
- 4400W (4.4kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 880pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-2
D20V0S1U2LP20-7 FAQ
1.How can I place an order for D20V0S1U2LP20-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D20V0S1U2LP20-7 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 D20V0S1U2LP20-7 reliable?
The price and inventory of D20V0S1U2LP20-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D20V0S1U2LP20-7 is usually 5 days.
3.What payment methods are accepted for D20V0S1U2LP20-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D20V0S1U2LP20-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D20V0S1U2LP20-7?
D20V0S1U2LP20-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D20V0S1U2LP20-7 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 D20V0S1U2LP20-7?
For technical support, including D20V0S1U2LP20-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D20V0S1U2LP20-7 requirements.
6.How does Aetrix verify that D20V0S1U2LP20-7 is sourced from the original manufacturer or authorized distributors?
All D20V0S1U2LP20-7 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 D20V0S1U2LP20-7 meets industry standards.
7.What is the process for return or replacement of D20V0S1U2LP20-7?
All D20V0S1U2LP20-7 units undergo pre-shipment inspection (PSI). If there is an issue with D20V0S1U2LP20-7, 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 D20V0S1U2LP20-7 part is unused and in its original packaging.
Return procedure for D20V0S1U2LP20-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D20V0S1U2LP20-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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