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Vishay General Semiconductor - Diodes Division VESD05A1A-HD1-GS08
- Part No.:
- VESD05A1A-HD1-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SOD-882
- Datasheet:
-
VESD05A1A-HD1-GS08.pdf
- Description:
- TVS DIODE 5VWM 12VC LLP1006-2L
- Quantity:
- Payment:
- Shipping:
Inventory:15,740
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Product details
Overview
VESD05A1A-HD1-GS08 from Vishay Semiconductors is a bidirectional asymmetrical ESD protection diode in LLP1006-2L package, rated for 5 V reverse stand-off voltage, ±30 kV IEC 61000-4-2 contact/air discharge immunity, and 16 A peak pulse current per IEC 61000-4-5. It protects single data/signal lines in high-speed USB, HDMI, and audio interfaces where low capacitance and compact footprint are critical.
For engineers reviewing the VESD05A1A-HD1-GS08 datasheet, VESD05A1A-HD1-GS08 pinout, VESD05A1A-HD1-GS08 application, or VESD05A1A-HD1-GS08 equivalent, key selection criteria include clamping voltage at 16 A (≤12 V), load capacitance at 2.5 V (76 pF), leakage current (<0.1 μA at 5 V), BiAs-mode operation, and MSL Level 1 solderability.
Technical Context
The VESD05A1A-HD1-GS08 implements bidirectional asymmetrical (BiAs) clamping: reverse breakdown at 6–7.5 V enables high-isolation standby, while forward conduction clamps negative transients near ground (VF ≤ 4.5 V at 16 A). Its two-terminal configuration connects Pin 1 to ground and Pin 2 to the protected line.
Designed for transient suppression on single-ended signal paths, it delivers 192 W peak pulse power (8/20 μs), operates from –40 °C to +125 °C junction temperature, and maintains <0.4 mm profile for space-constrained PCB layouts in portable electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 5 V - Maximum continuous operating voltage before clamping begins; sets upper limit for safe signal swing in 3.3 V/5 V interfaces. |
| ESD Immunity | ±30 kV contact / ±30 kV air - Meets highest IEC 61000-4-2 level without external shielding; eliminates need for secondary protection layers. |
| Clamping Voltage (16 A) | ≤12 V reverse / ≤4.5 V forward - Limits voltage seen by downstream IC during surge; ensures logic-level compatibility with 3.3 V and 5 V receivers. |
| Load Capacitance | 76 pF at 2.5 V - Preserves signal integrity in USB 2.0 and audio lines; avoids timing skew or attenuation above 10 MHz. |
| Leakage Current | <0.1 μA at 5 V - Prevents DC bias shift or battery drain in always-on sensor and interface circuits. |
| Package | LLP1006-2L - 1.05 × 0.65 mm, 0.33 mm height; compatible with standard SMT reflow and automated optical inspection (no X-ray required). |
| Surge Rating | 16 A (8/20 μs) - Withstands multiple IEC 61000-4-5 surges without degradation; supports industrial-grade reliability in unshielded environments. |
Pinout & Package
LLP1006-2L is a 2-terminal leadless plastic package with cathode marking bar on Pin 1 side. Total dimensions: 1.05 mm × 0.65 mm × 0.33 mm. Footprint requires 1.0 mm pad length, 0.5 mm pad width, and 0.25 mm solder mask opening per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (ground connection) | Connected directly to system ground plane; serves as return path for both positive and negative ESD currents. |
| Pin 2 | Anode (signal line connection) | Connected to protected data/signal line (e.g., USB D+, HDMI TMDS); conducts ESD energy to ground when transient exceeds VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) Clamping | Enables low forward-voltage clamping (~1 V at 1 A) for negative transients while maintaining 6–7.5 V reverse breakdown for precise 5 V system alignment. |
| Ultra-Low Profile | 0.33 mm max height - Fits under mechanical shields and in stacked-board assemblies; eliminates height conflicts in slim mobile enclosures. |
| e4 NiPdAu Plating | Whisker-free, RoHS-compliant termination - Ensures long-term solder joint reliability and eliminates risk of conductive filament growth in high-humidity environments. |
| MSL Level 1 Handling | No dry-pack or baking required before assembly - Reduces manufacturing overhead and eliminates moisture-related popcorning during reflow. |
| Low 76 pF Capacitance at 2.5 V | Maintains >200 MHz bandwidth for high-speed digital signals - Supports full-speed USB 2.0 (480 Mbps) without measurable eye diagram degradation. |
Applications
| USB 2.0 Data Lines | HDMI TMDS Channels |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB hosts and peripherals exposed to frequent human-handling ESD events. IC Role / Device Role / Timing Role: Single-line transient voltage suppressor placed immediately before USB PHY input pins. Use Value: Clamps ±30 kV discharges to ≤12 V within nanoseconds, preserving USB enumeration and preventing PHY latch-up or damage. |
Use Scenario: Shielding TMDS clock and data pairs in compact HDMI source devices (e.g., set-top boxes, dongles) with tight board area budgets. IC Role / Device Role / Timing Role: Low-capacitance ESD shunt mounted at HDMI connector edge to minimize stub length. Use Value: 76 pF loading avoids signal integrity loss at 2.25 GHz (TMDS clock), while BiAs mode prevents DC offset on differential pairs. |
| Smartphone Audio Jacks | Industrial Sensor Interfaces |
Use Scenario: Guarding 3.5 mm TRRS microphone and headset lines against pocket-static discharge in smartphones and tablets. IC Role / Device Role / Timing Role: ESD clamp on analog audio paths between jack and codec, placed before AC-coupling capacitors. Use Value: Sub-1 μA leakage prevents DC bias shift across coupling caps; low VF clamping avoids audible pop during negative ESD events. |
Use Scenario: Securing RS-485 or CAN FD data lines in factory-floor equipment subject to cable-induced surges and operator contact. IC Role / Device Role / Timing Role: First-stage protection on field-side signal entry points, upstream of TVS arrays or isolation barriers. Use Value: 16 A IEC 61000-4-5 rating handles repetitive surge exposure; MSL Level 1 simplifies high-volume industrial PCB assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z5.0T1G | Unidirectional; 5.0 V VRWM; 12 pF @ 0 V; 14 A IPP; SOD-523 package (1.3 × 0.85 mm) | Lacks BiAs clamping - unsuitable for bidirectional analog lines; lower capacitance benefits RF but higher leakage (0.5 μA) | Select only for unidirectional DC-biased lines where ground-referenced transients dominate and size allows larger SOD-523 footprint. |
| TPD2E001DRYR | Bidirectional; 5.5 V VRWM; 11 pF @ 0 V; 4 A IPP; X2SON-6 (1.0 × 1.0 mm) with 2-channel configuration | Higher channel count but lower surge rating; not pin-compatible - requires redesign for single-line use | Prefer when protecting two lines simultaneously; avoid for single-line 16 A surge requirements due to derated IPP per channel. |
Compared with ESD5Z5.0T1G and TPD2E001DRYR, the VESD05A1A-HD1-GS08 uniquely combines 16 A surge capability, BiAs clamping, and sub-0.4 mm height in a 2-pin LLP package - making it optimal for space-limited, high-reliability single-line protection where both polarity transients must be suppressed with minimal signal distortion.
Availability
VESD05A1A-HD1-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS channel hardening, and smartphone audio jack ESD hardening requiring stable component supply across production ramps and long-life programs.
Supply support for VESD05A1A-HD1-GS08 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability passive and protection components for automotive, industrial, and computing markets.
The VESD05A1A-HD1-GS08 belongs to Vishay's BiAs ESD protection diode family, engineered specifically for ultra-compact, high-surge, bidirectional signal-line protection in consumer and portable electronics.
FAQ
What is the maximum clamping voltage of the VESD05A1A-HD1-GS08 at 16 A surge current?
The VESD05A1A-HD1-GS08 exhibits a reverse clamping voltage (VC) of ≤12 V and a forward clamping voltage (VF) of ≤4.5 V when subjected to a 16 A peak pulse current (8/20 μs waveform). These values ensure downstream ICs remain within safe operating voltage limits during worst-case IEC 61000-4-5 surges. The VESD05A1A-HD1-GS08 datasheet specifies these limits under standardized test conditions at Tamb = 25 °C.
Does the VESD05A1A-HD1-GS08 support bidirectional ESD protection?
Yes, the VESD05A1A-HD1-GS08 provides true bidirectional asymmetrical (BiAs) protection: it clamps positive transients above 6–7.5 V in reverse mode and negative transients near ground via low forward voltage (≤4.5 V at 16 A). This dual-mode behavior makes the VESD05A1A-HD1-GS08 ideal for AC-coupled or floating signal lines such as USB D+/D− and audio jacks.
What is the load capacitance of the VESD05A1A-HD1-GS08 at typical operating bias?
The VESD05A1A-HD1-GS08 has a load capacitance of 76 pF measured at VR = 2.5 V and f = 1 MHz - representing real-world bias in 3.3 V systems. At 0 V bias, capacitance rises to 130–150 pF, but the 2.5 V value is the relevant specification for high-speed digital interfaces. This 76 pF figure ensures minimal impact on signal rise time in USB 2.0 and HDMI applications.
Is the VESD05A1A-HD1-GS08 compatible with standard SMT reflow profiles?
Yes, the VESD05A1A-HD1-GS08 is qualified for peak reflow temperatures up to 260 °C and carries MSL Level 1 rating per J-STD-020 - meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking or dry packing. Its LLP1006-2L package also supports standard AOI without requiring X-ray inspection.
What does "BiAs-MODE" mean for the VESD05A1A-HD1-GS08?
"BiAs-MODE" stands for Bidirectional Asymmetrical protection mode - a proprietary Vishay architecture where the VESD05A1A-HD1-GS08 clamps positive transients at ~6.8 V (reverse breakdown) and negative transients at ~1–4.5 V (forward conduction). This asymmetry allows precise alignment with 5 V system rails while minimizing forward-voltage overshoot on sensitive analog inputs. The VESD05A1A-HD1-GS08 achieves this using an internal diode structure optimized for differential transient response.
VESD05A1A-HD1-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SOD-882
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 16A (8/20µs)
- Power - Peak Pulse:
- 192W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 130pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP1006-2L
VESD05A1A-HD1-GS08 FAQ
1.How can I place an order for VESD05A1A-HD1-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A1A-HD1-GS08 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 VESD05A1A-HD1-GS08 reliable?
The price and inventory of VESD05A1A-HD1-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A1A-HD1-GS08 is usually 5 days.
3.What payment methods are accepted for VESD05A1A-HD1-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A1A-HD1-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A1A-HD1-GS08?
VESD05A1A-HD1-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A1A-HD1-GS08 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 VESD05A1A-HD1-GS08?
For technical support, including VESD05A1A-HD1-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A1A-HD1-GS08 requirements.
6.How does Aetrix verify that VESD05A1A-HD1-GS08 is sourced from the original manufacturer or authorized distributors?
All VESD05A1A-HD1-GS08 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 VESD05A1A-HD1-GS08 meets industry standards.
7.What is the process for return or replacement of VESD05A1A-HD1-GS08?
All VESD05A1A-HD1-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A1A-HD1-GS08, 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 VESD05A1A-HD1-GS08 part is unused and in its original packaging.
Return procedure for VESD05A1A-HD1-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD05A1A-HD1-GS08 Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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