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Vishay General Semiconductor - Diodes Division VESD05A4A-HS4-GS08
- Part No.:
- VESD05A4A-HS4-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 5-XFDFN Exposed Pad
- Datasheet:
-
VESD05A4A-HS4-GS08.pdf
- Description:
- TVS DIODE 5VWM 12VC LLP1010-6L
- Quantity:
- Payment:
- Shipping:
Inventory:7,641
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Product details
Overview
VESD05A4A-HS4-GS08 from Vishay Semiconductors is a quad-channel bidirectional asymmetrical ESD protection diode array in LLP1010-6L package, rated for 5 V reverse stand-off voltage (VRWM), 12 pF typical capacitance at 0 V, < 0.01 μA reverse leakage, ±15 kV IEC 61000-4-2 contact ESD immunity, and 2.5 A peak pulse current - deployed on high-speed USB 2.0, HDMI, and MIPI data lines.
For engineers reviewing the VESD05A4A-HS4-GS08 datasheet, VESD05A4A-HS4-GS08 pinout, VESD05A4A-HS4-GS08 application, or VESD05A4A-HS4-GS08 equivalent, key selection criteria include low clamping voltage (≤12 V at 2.5 A), ultra-low profile (<0.4 mm height), MSL Level 1 solderability, and dual-mode operation (BiAs/BiSy) for flexible signal-line protection architecture.
Technical Context
The VESD05A4A-HS4-GS08 implements BiAs-mode (bidirectional asymmetrical) protection with pins 1, 3–5 as protected signal lines and pins 2 & 6 as common ground terminals - enabling independent clamping of positive transients (via reverse breakdown) and negative transients (via forward conduction). Its asymmetry yields VC ≈ 12 V (positive) and VF ≈ 2.5 V (negative) at 2.5 A.
In BiSy-mode (bidirectional symmetrical), it supports three-line protection using any three of pins 1/3/4/5 as signal paths with no ground connection - delivering matched ±11.5–13 V clamping and reduced 6–8 pF capacitance at 0 V, optimized for balanced differential interfaces like LVDS or USB D+/D− pairs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection channels | 4-line (BiAs mode) or 3-line (BiSy mode) - enables scalable layout reuse across single-ended and differential data buses |
| Reverse stand-off voltage (VRWM) | 5 V (BiAs), 5.5 V (BiSy) - ensures compatibility with 3.3 V and 5 V logic I/O without leakage-induced signal degradation |
| Clamping voltage (VC) | ≤12 V at 2.5 A (BiAs, +surge); ≤13 V at 2.5 A (BiSy) - maintains downstream IC safety margin below 13.3 V absolute max ratings |
| Capacitance (CD) | 12 pF typ. at 0 V (BiAs); 6 pF typ. at 0 V (BiSy) - preserves signal integrity on >480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4 links |
| ESD immunity | ±15 kV contact / ±17 kV air per IEC 61000-4-2 - meets industrial and portable electronics end-equipment surge compliance |
| Package | LLP1010-6L (1.0 × 1.0 × 0.35 mm, 0.4 mm max height) - supports ultra-thin mobile PCBs and automated optical inspection without X-ray |
Pinout & Package
LLP1010-6L is a 1.0 mm × 1.0 mm, 6-terminal leadless plastic package with exposed thermal pad, 0.4 mm maximum height, NiPdAu (e4) plating, and MSL Level 1 rating - compatible with standard reflow profiles up to 260 °C/10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Protected signal line L1 (BiAs/BiSy) | Input/output path for first data line; connects to host or peripheral I/O trace |
| Pin 2 | Ground (BiAs mode only) | Common return for all four protection paths in asymmetrical configuration |
| Pin 3 | Protected signal line L2 (BiAs/BiSy) | Second data channel; electrically isolated from Pin 1 but shares same device die |
| Pin 4 | Protected signal line L3 (BiAs/BiSy) | Third data channel; supports simultaneous protection of parallel bus lines |
| Pin 5 | Protected signal line L4 (BiAs mode only) | Fourth dedicated signal path; unused in BiSy 3-line configuration |
| Pin 6 | Ground (BiAs mode only) | Redundant ground terminal for improved thermal dissipation and lower inductance return path |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode protection architecture | Supports both BiAs (4-line, ground-referenced) and BiSy (3-line, floating) configurations - eliminates need for separate part numbers in mixed-signal designs |
| Ultra-low capacitance switching | 6–12 pF range across bias conditions - minimizes insertion loss and jitter on high-speed serial links without requiring impedance tuning |
| Sub-0.4 mm profile | 0.35 mm nominal height - enables integration into space-constrained smartphone camera modules and wearable sensor hubs |
| High-reliability termination | NiPdAu (e4) plating with no whisker growth - ensures long-term solder joint integrity in automotive infotainment and industrial control environments |
| Visual solder inspection support | No X-ray required for quality verification - reduces manufacturing test cost and cycle time in high-volume consumer electronics assembly |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in smartphones, tablets, and docking stations against ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at connector, operating in BiSy mode to clamp both polarities symmetrically. Use Value: 6 pF capacitance prevents signal rise-time degradation, while ≤13 V clamping ensures USB PHY ICs (e.g., TUSB2036) remain within safe operating limits. | Use Scenario: Safeguarding TMDS clock and data channels in HDMI 1.4 receivers and transmitters used in monitors, set-top boxes, and gaming consoles. IC Role / Device Role / Timing Role: Low-capacitance shunt protector mounted adjacent to HDMI connector, configured in BiAs mode with shared ground reference. Use Value: 12 pF capacitance maintains 1.65 Gbps eye diagram integrity, and ±15 kV contact ESD rating exceeds IEC 61000-4-2 system-level requirements. |
| MIPI D-PHY Camera Interface | Industrial RS-485 Transceiver I/O |
Use Scenario: Shielding high-speed MIPI D-PHY differential pairs (CLK/STROBE and DATA0–DATA3) in automotive ADAS camera modules from ESD during field service or environmental exposure. IC Role / Device Role / Timing Role: Quad-channel ESD array protecting four data lanes simultaneously in BiAs configuration, with ground pins tied to chassis ground plane. Use Value: 2.5 A peak pulse rating handles multiple fast transients, and -40 °C to +125 °C junction temperature range supports under-hood deployment. | Use Scenario: Adding robust ESD hardening to RS-485 transceiver (e.g., MAX13487E) A/B bus terminals in factory automation PLCs and motor drives exposed to noisy industrial environments. IC Role / Device Role / Timing Role: Bidirectional shunt protector applied to differential bus lines, operated in BiSy mode to avoid ground loop issues in isolated systems. Use Value: 5.5 V VRWM aligns with RS-485 common-mode range, and 13 V clamping prevents latch-up in transceivers with 13.2 V abs max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DQAR | 6-pin SON package; 5.5 V VRWM; 10 pF CD; ±12 kV contact ESD rating | Limited to BiAs mode only; no BiSy capability; slightly lower ESD immunity | Preferred where footprint compatibility with TI's 1.45 × 1.0 mm SON is required and BiSy mode is unnecessary |
| ESD56081D05-2/TR | 6-pin DFN; 5 V VRWM; 15 pF CD; ±15 kV contact ESD; 3.5 A IPP | Higher capacitance increases signal distortion risk on >480 Mbps links; higher IPP suits higher-energy surge zones | Selected when greater surge margin is prioritized over high-speed signal fidelity, e.g., industrial Ethernet PHY protection |
Compared with TPD4E05U06DQAR and ESD56081D05-2/TR, the VESD05A4A-HS4-GS08 uniquely supports dual-mode (BiAs/BiSy) operation in a sub-1 mm² footprint, delivers lower capacitance in BiSy mode (6 pF), and provides verified ±15 kV contact ESD performance with MSL Level 1 handling - making it optimal for compact, multi-standard interface protection.
Availability
VESD05A4A-HS4-GS08 is available at Aetrix Electronics and suitable for USB 2.0, HDMI, MIPI D-PHY, and RS-485 interface designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for VESD05A4A-HS4-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 power management, sensing, and circuit protection components with emphasis on reliability, miniaturization, and AEC-Q200 qualification.
The VESD series targets high-density, high-speed interface protection - engineered specifically for mobile, automotive, and industrial applications where low capacitance, dual-mode flexibility, and ultra-thin packaging are critical design constraints.
FAQ
What protection modes does the VESD05A4A-HS4-GS08 support, and how do they differ?
The VESD05A4A-HS4-GS08 supports two distinct protection modes: BiAs (bidirectional asymmetrical) and BiSy (bidirectional symmetrical). In BiAs mode, pins 2 and 6 serve as ground references for four independent signal lines (pins 1, 3–5), yielding different clamping voltages for positive (≤12 V) and negative (≈2.5 V) transients. In BiSy mode, three signal pins (e.g., 1, 3, 5) protect each other without ground connection, delivering matched ±11.5–13 V clamping - ideal for differential buses. Both modes are implemented within the same VESD05A4A-HS4-GS08 silicon die and package.
What is the maximum operating temperature and moisture sensitivity level for VESD05A4A-HS4-GS08?
The VESD05A4A-HS4-GS08 has a junction temperature range of -40 °C to +125 °C and is rated MSL Level 1 per J-STD-020 - meaning it may be stored indefinitely at ambient conditions without dry-pack requirements and withstands reflow peak temperatures up to 260 °C for 10 seconds at terminals. This makes the VESD05A4A-HS4-GS08 suitable for under-hood automotive modules and sealed industrial enclosures where thermal cycling and humidity resistance are critical.
How does the capacitance of VESD05A4A-HS4-GS08 vary with applied voltage, and why does that matter?
The VESD05A4A-HS4-GS08 exhibits voltage-dependent capacitance: 12 pF typical at 0 V (BiAs), dropping to 7.5–8.5 pF at 2.5 V reverse bias; in BiSy mode, it measures 6–8 pF at 0 V and 5–7 pF at 2.5 V. This reduction under bias minimizes signal distortion on active data lines, preserving edge rates and eye opening in high-speed protocols like USB 2.0 and HDMI. The VESD05A4A-HS4-GS08's low-voltage capacitance stability is confirmed by Figure 3 in its official datasheet (Doc. #81786).
Can multiple VESD05A4A-HS4-GS08 devices be paralleled to increase surge current handling?
Yes - the VESD05A4A-HS4-GS08 datasheet explicitly permits paralleling identical units to scale performance: two devices yield double peak pulse current (5 A total), halved line inductance/resistance (lowering clamping voltage), doubled capacitance (24 pF BiAs), and doubled leakage current (0.2 μA). This technique is validated for high-energy zones such as external I/O connectors. However, layout symmetry and trace matching are essential to ensure current sharing; the VESD05A4A-HS4-GS08's matched internal diode characteristics support this configuration.
Is VESD05A4A-HS4-GS08 RoHS-compliant and halogen-free?
Yes - the VESD05A4A-HS4-GS08 complies with Directive 2011/65/EU (RoHS) and JEDEC JS709A (halogen-free), as certified by Vishay Intertechnology. Its LLP1010-6L package uses lead-free NiPdAu (e4) plating, UL 94 V-0 molding compound, and contains no brominated flame retardants or chlorine-based additives. Compliance documentation is accessible via Vishay's Material Category Policy (Doc. #99912) and RoHS/Halogen-Free declarations on www.vishay.com.
VESD05A4A-HS4-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 5-XFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- 30W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 12pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP1010-6L
VESD05A4A-HS4-GS08 FAQ
1.How can I place an order for VESD05A4A-HS4-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A4A-HS4-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 VESD05A4A-HS4-GS08 reliable?
The price and inventory of VESD05A4A-HS4-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A4A-HS4-GS08 is usually 5 days.
3.What payment methods are accepted for VESD05A4A-HS4-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A4A-HS4-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A4A-HS4-GS08?
VESD05A4A-HS4-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A4A-HS4-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 VESD05A4A-HS4-GS08?
For technical support, including VESD05A4A-HS4-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A4A-HS4-GS08 requirements.
6.How does Aetrix verify that VESD05A4A-HS4-GS08 is sourced from the original manufacturer or authorized distributors?
All VESD05A4A-HS4-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 VESD05A4A-HS4-GS08 meets industry standards.
7.What is the process for return or replacement of VESD05A4A-HS4-GS08?
All VESD05A4A-HS4-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A4A-HS4-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 VESD05A4A-HS4-GS08 part is unused and in its original packaging.
Return procedure for VESD05A4A-HS4-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD05A4A-HS4-GS08 Tags
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