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Vishay General Semiconductor - Diodes Division VBUS051BD-HD1-GS08
- Part No.:
- VBUS051BD-HD1-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SOD-882
- Datasheet:
-
VBUS051BD-HD1-GS08.pdf
- Description:
- TVS DIODE 5VWM 16VC LLP1006-2L
- Quantity:
- Payment:
- Shipping:
Inventory:14,181
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Product details
Overview
VBUS051BD-HD1-GS08 from Vishay Semiconductors is a single-line, bidirectional asymmetrical (BiAs) ESD protection diode in LLP1006-2L package, rated for 5 V reverse stand-off voltage, 0.9 pF typical capacitance, < 0.01 μA reverse leakage at 5 V, ±15 kV IEC 61000-4-2 contact/air discharge, and 3 A IEC 61000-4-5 peak pulse current - deployed for high-speed USB 2.0 data line protection.
For engineers reviewing the VBUS051BD-HD1-GS08 datasheet, VBUS051BD-HD1-GS08 pinout, VBUS051BD-HD1-GS08 application, or VBUS051BD-HD1-GS08 equivalent, key selection criteria include low-capacitance clamping for signal integrity, asymmetric bidirectional operation up to 5 V working range, MSL Level 1 solderability, NiPdAu (e4) plating, and compatibility with automated optical inspection.
Technical Context
The VBUS051BD-HD1-GS08 implements a Zener-based clamping structure optimized for transient suppression on unidirectional high-speed data lines. Its BiAs behavior delivers distinct forward clamping (~3.4 V at 3 A) and reverse clamping (~16 V at 3 A), enabling precise voltage limiting above and below the 5 V operating rail without DC bias dependency.
Designed for placement between a data line (pin 2) and ground (pin 1), it operates passively with no external control or power supply. The device meets IEC 61000-4-2 (±15 kV) and IEC 61000-4-5 (3 A, 8/20 μs) standards while maintaining sub-1 pF load capacitance critical for USB 2.0 eye diagram compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 5 V - Maximum continuous working voltage before conduction; defines safe operating ceiling for USB 2.0 VBUS/data line applications. |
| Capacitance (CD) | 0.9 pF (typ.) at 0 V, 1 MHz - Ensures minimal signal distortion and insertion loss on 480 Mbps USB 2.0 differential pairs. |
| ESD Immunity | ±15 kV contact & air discharge (IEC 61000-4-2) - Validated immunity level for handheld device interface ports exposed to human-body-model transients. |
| Peak Pulse Current | 3 A (IEC 61000-4-5, 8/20 μs) - Sustains surge energy from lightning-induced or inductive switching events without failure. |
| Reverse Leakage Current | < 0.01 μA at 5 V - Prevents measurable DC loading on high-impedance data receivers and preserves battery life in portable systems. |
| Clamping Voltage (VC) | 16 V max at 3 A (reverse) - Limits transient overvoltage to safe levels for downstream 5 V-tolerant PHY circuitry. |
| Package | LLP1006-2L - 1.05 × 0.65 mm, 0.4 mm profile, MSL Level 1, NiPdAu (e4) terminations compatible with standard reflow and AOI. |
Pinout & Package
VBUS051BD-HD1-GS08 uses the LLP1006-2L surface-mount package: ultra-compact (1.05 mm × 0.65 mm), low-profile (< 0.4 mm), with two terminals and cathode marking bar. Pin 1 is ground (cathode), Pin 2 is the protected line (anode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground / Cathode | Reference node for clamping; connects to PCB ground plane to sink negative transients and provide return path for positive surges. |
| Pin 2 | Data Line / Anode | Connected directly to high-speed signal trace (e.g., USB D+ or D−); conducts during overvoltage to clamp to safe voltage windows. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.9 pF typical enables full-speed USB 2.0 (480 Mbps) signal integrity without equalization or margin loss. |
| Asymmetrical bidirectional clamping | Clamps positive transients ~3.4 V above ground and negative transients ~16 V below VCC (5 V rail), matching unidirectional data line biasing. |
| IEC 61000-4-2/4-5 certified | Validated ±15 kV contact/air ESD and 3 A surge performance eliminates need for system-level requalification. |
| MSL Level 1 & AOI-compatible | Zero moisture sensitivity and visible cathode marking allow direct placement into high-volume SMT lines without baking or X-ray inspection. |
| NiPdAu (e4) plating | Whisker-free, Pb-free terminations ensure long-term interconnect reliability and RoHS/REACH compliance in consumer and industrial assemblies. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Passive clamping diode placed in series with each data line, referenced to ground, providing real-time transient suppression without affecting 480 Mbps signaling. Use Value: Maintains USB eye diagram compliance via 0.9 pF capacitance and limits clamping voltage to ≤16 V, safeguarding 5 V-tolerant PHY ICs. |
Use Scenario: Shielding TMDS data channels in HDMI 1.4 sources (e.g., set-top boxes, GPUs) from electrostatic discharge during hot-plug events. IC Role / Device Role / Timing Role: Single-line ESD suppressor per TMDS pair, installed adjacent to connector with minimal trace length to preserve 165 MHz bandwidth. Use Value: Sub-1 pF loading prevents signal rise-time degradation, while ±15 kV ESD rating meets IEC 61000-4-2 requirements for consumer AV equipment. |
| Mobile Device Charging Port | Industrial USB Peripheral Interface |
Use Scenario: Securing VBUS-sensing or CC lines in USB-C receptacles of smartphones and tablets against user-induced ESD. IC Role / Device Role / Timing Role: Low-leakage (≤0.01 μA) protector on 5 V auxiliary lines where quiescent current must be minimized for battery longevity. Use Value: Enables compact layout with LLP1006-2L footprint and eliminates need for additional filtering components due to integrated robustness. |
Use Scenario: Hardening USB 2.0 ports on programmable logic controllers (PLCs) and HMIs exposed to factory-floor ESD and conducted surges. IC Role / Device Role / Timing Role: Frontline transient suppressor mounted at board edge, coordinated with common-mode chokes to meet IEC 61000-4-5 Level 3 immunity. Use Value: Withstands 3 A surge current and -55 °C to +145 °C junction temperature, ensuring uptime in harsh thermal and electrical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VBUS05N1-HD1 | Same LLP1006-2L package; lower clamping voltage (VC = 13 V max at 3 A); identical 0.9 pF capacitance and ±15 kV ESD rating. | Optimized for newer designs requiring tighter voltage clamping margins; not recommended for legacy systems calibrated to VBUS051BD-HD1's 16 V VC ceiling. | Select VBUS05N1-HD1 when upgrading for improved downstream IC safety margin; verify system-level clamping headroom remains sufficient. |
| SMAJ5.0A | DO-214AC package; 5.0 V standoff; 600 W peak power; 100 pF capacitance - orders of magnitude higher CD than VBUS051BD-HD1-GS08. | Intended for power-rail (not signal-line) protection; incompatible with USB/HDMI due to excessive capacitance and larger footprint. | Only consider SMAJ5.0A for DC power input protection; avoid for high-speed data lines where VBUS051BD-HD1-GS08's 0.9 pF is essential. |
Compared with VBUS05N1-HD1, the VBUS051BD-HD1-GS08 offers higher reverse clamping (16 V vs. 13 V) beneficial for systems with wider voltage tolerance, while SMAJ5.0A's 100 pF capacitance makes it unsuitable for any data-line application - confirming VBUS051BD-HD1-GS08's unique role in low-capacitance, high-speed interface protection.
Availability
VBUS051BD-HD1-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI data lane hardening, and industrial USB peripheral interfaces requiring stable component supply and long-lifecycle support.
Supply support for VBUS051BD-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 diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The VBUS051BD-HD1-GS08 belongs to Vishay's BiAs ESD protection diode family, engineered specifically for high-frequency data line protection where ultra-low capacitance and asymmetric clamping are mandatory for signal fidelity and system robustness.
FAQ
What is the primary function of the VBUS051BD-HD1-GS08 in a circuit?
The VBUS051BD-HD1-GS08 functions as a passive, bidirectional asymmetrical ESD protection diode placed between a high-speed data line (e.g., USB D+) and ground. It clamps transient overvoltages - such as ±15 kV ESD strikes - by conducting only when voltage exceeds its 5 V reverse stand-off threshold, thereby protecting downstream 5 V-tolerant PHY ICs without affecting normal signal operation.
Does the VBUS051BD-HD1-GS08 require a DC bias or control signal to operate?
No, the VBUS051BD-HD1-GS08 operates entirely passively with no external power, bias, or control signals. Its Zener-based clamping action activates automatically when transient voltage across pins 1 and 2 exceeds breakdown thresholds - 6.9–8.7 V reverse and ~3.4 V forward - making it ideal for always-on, low-maintenance interface protection.
Can the VBUS051BD-HD1-GS08 be used on USB 3.0 or higher-speed interfaces?
No, the VBUS051BD-HD1-GS08 is not recommended for USB 3.0 (5 Gbps) or faster interfaces. Its 0.9 pF capacitance is optimized for USB 2.0 (480 Mbps) and HDMI 1.4 (165 MHz); higher-speed protocols demand sub-0.3 pF devices to maintain signal integrity, and Vishay specifies this part explicitly for USB 2.0 and similar high-frequency but lower-bandwidth applications.
What does "Not for New Designs" mean for the VBUS051BD-HD1-GS08?
"Not for New Designs" indicates Vishay recommends new projects use the upgraded VBUS05N1-HD1 instead, which shares the same package and key specs but improves reverse clamping voltage (13 V vs. 16 V). The VBUS051BD-HD1-GS08 remains fully supported for existing designs, with no obsolescence timeline published and full parametric and reliability data retained in its datasheet (Rev. 2.8, May 2022).
How is the polarity marked on the VBUS051BD-HD1-GS08 LLP1006-2L package?
The VBUS051BD-HD1-GS08 uses a bar marking on the top surface to indicate the cathode (Pin 1). Per Vishay's documentation, the bar aligns with Pin 1, and Pin 2 is the anode - consistent with standard diode polarity convention where current flows from anode (Pin 2) to cathode (Pin 1) during forward conduction or clamping.
VBUS051BD-HD1-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SOD-882
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.9V
- Voltage - Clamping (Max) @ Ipp:
- 16V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 45W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.9pF @ 1MHz
- Operating Temperature:
- -55°C ~ 145°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP1006-2L
VBUS051BD-HD1-GS08 FAQ
1.How can I place an order for VBUS051BD-HD1-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VBUS051BD-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 VBUS051BD-HD1-GS08 reliable?
The price and inventory of VBUS051BD-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 VBUS051BD-HD1-GS08 is usually 5 days.
3.What payment methods are accepted for VBUS051BD-HD1-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VBUS051BD-HD1-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VBUS051BD-HD1-GS08?
VBUS051BD-HD1-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VBUS051BD-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 VBUS051BD-HD1-GS08?
For technical support, including VBUS051BD-HD1-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VBUS051BD-HD1-GS08 requirements.
6.How does Aetrix verify that VBUS051BD-HD1-GS08 is sourced from the original manufacturer or authorized distributors?
All VBUS051BD-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 VBUS051BD-HD1-GS08 meets industry standards.
7.What is the process for return or replacement of VBUS051BD-HD1-GS08?
All VBUS051BD-HD1-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VBUS051BD-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 VBUS051BD-HD1-GS08 part is unused and in its original packaging.
Return procedure for VBUS051BD-HD1-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VBUS051BD-HD1-GS08 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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