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Vishay General Semiconductor - Diodes Division VESD05A1C-02Z-GS08
- Part No.:
- VESD05A1C-02Z-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
VESD05A1C-02Z-GS08.pdf
- Description:
- TVS DIODE 5VWM 10VC SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:7,450
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Product details
Overview
VESD05A1C-02Z-GS08 from Vishay Semiconductors is a bidirectional asymmetrical (BiAs) ESD protection diode in SOD923 package, rated for 5 V reverse standoff voltage, 30 kV IEC 61000-4-2 contact/air discharge immunity, and 8 A peak pulse current. It provides low-clamp transient suppression for high-speed data lines including USB 2.0 and HDMI interfaces.
For engineers reviewing the VESD05A1C-02Z-GS08 datasheet, VESD05A1C-02Z-GS08 pinout, VESD05A1C-02Z-GS08 application, or VESD05A1C-02Z-GS08 equivalent, key selection criteria include clamping voltage asymmetry (VF ≈ 1.2 V / VC ≈ 9.3 V at 8 A), 38 pF capacitance at 2.5 V, leakage < 0.2 µA at 5 V, and ultra-low 0.4 mm profile for space-constrained PCB layouts.
Technical Context
The VESD05A1C-02Z-GS08 operates in BiAs mode: pin 1 grounded, pin 2 connected to signal line. Positive transients above 6.0–8.0 V breakdown trigger reverse conduction with clamping voltage ≤10 V at 8 A; negative transients clamp near ground via forward conduction with VF ≤1.9 V at 8 A.
Its SOD923 package (0.9 × 0.75 × 0.4 mm) supports high-density routing on mobile and portable PCBs. The device meets IEC 61000-4-2 (±30 kV), IEC 61000-4-5 (8/20 µs, 80 W), and RoHS/WEEE compliance with MSL level 1 reflow capability up to 260 °C/10 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - Maximum continuous operating voltage before clamping begins; ensures signal integrity for 3.3 V/5 V logic interfaces. |
| Breakdown Voltage | 6.0–8.0 V at 1 mA - Defines onset of protective conduction; tight range enables predictable turn-on behavior. |
| Clamping Voltage (8 A) | 9.3–10 V reverse / ≤1.9 V forward - Limits voltage seen by protected IC during surge; asymmetry minimizes ground bounce on negative events. |
| Capacitance | 38 pF at VR = 2.5 V, 1 MHz - Low enough for USB 2.0 (480 Mbps) and HDMI 1.4 signal integrity without excessive rise-time degradation. |
| Leakage Current | < 0.2 µA at 5 V - Negligible DC loading on high-impedance data lines; preserves battery life in portable devices. |
| ESD Rating | ±30 kV contact & air per IEC 61000-4-2 - Exceeds industrial and consumer ESD immunity requirements without external circuitry. |
| Package | SOD923 - 0.4 mm height enables thin-profile designs; footprint compatible with automated placement and reflow. |
Pinout & Package
SOD923 package: 2-terminal surface-mount device with cathode bar marking on pin 1 side; dimensions 0.9 mm × 0.75 mm × 0.4 mm; MSL level 1; UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to system ground; serves as return path for both positive and negative ESD currents. |
| Pin 2 | Anode | Connected to protected signal/data line; bidirectional asymmetry enables low-VF clamping for negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) Clamping | Forward clamping ~1.2 V at 1 A vs. reverse clamping ~8 V - reduces ground noise during negative surges while maintaining robust positive-event protection. |
| Ultra-Low Profile | 0.4 mm max height - enables use in slim smartphones, wearables, and ultra-thin notebooks where Z-axis clearance is constrained. |
| Low Signal-Line Capacitance | 38 pF at 2.5 V - preserves edge rate and eye diagram integrity for 480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4 links. |
| High Surge Robustness | 8 A peak pulse current (8/20 µs), 80 W peak power - withstands multiple IEC 61000-4-5 surges without degradation. |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against user-handling ESD events. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry point, before USB transceiver IC. Use Value: 38 pF capacitance avoids signal distortion at 480 Mbps; ±30 kV rating eliminates need for secondary protection stages. | Use Scenario: Shielding TMDS clock and data channels in portable media players from cable-discharge events. IC Role / Device Role / Timing Role: Point-of-entry ESD clamp on each differential pair, minimizing stub length to preserve 1.65 Gbps timing margins. Use Value: Asymmetrical clamping prevents ground shift during negative surges, preserving common-mode rejection in high-speed receivers. |
| Industrial Sensor Interface | Automotive Infotainment Display Link |
Use Scenario: Safeguarding RS-485 or CAN FD data lines in factory-floor sensors exposed to electrostatic buildup. IC Role / Device Role / Timing Role: Secondary-level ESD guard between connector and line driver/receiver, complementing system-level TVS arrays. Use Value: 5 V VRWM matches typical sensor bus voltage rails; 8 A IPP handles induced surges from nearby motor switching. | Use Scenario: Protecting LVDS or FPD-Link III video data lanes connecting head unit to dashboard display. IC Role / Device Role / Timing Role: Per-lane ESD suppressor mounted adjacent to display connector to minimize loop inductance. Use Value: SOD923 footprint allows dense channel spacing; 0.4 mm height avoids interference with stacked flex-cable assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5V3U2U-2/TR | Unidirectional; 5.3 V VRWM; 12 pF @ 0 V; 12 A IPP | Lower capacitance suits >1 Gbps interfaces but lacks BiAs ground-noise control | Select when lowest possible signal-line loading is critical and negative transient grounding is managed elsewhere. |
| TPD2E001DRYR | BiAs; 5 V VRWM; 12 pF @ 0 V; 4 A IPP; 0.65 mm height | Higher clamping voltage (12 V at 4 A); larger package limits ultra-thin designs | Choose when tighter capacitance tolerance is needed and board height budget allows ≥0.65 mm. |
Compared with ESD5V3U2U-2/TR and TPD2E001DRYR, the VESD05A1C-02Z-GS08 uniquely balances sub-0.4 mm height, 38 pF at bias, and true BiAs clamping-making it optimal for compact USB/HDMI endpoints where ground bounce and Z-space are co-constrained.
Availability
VESD05A1C-02Z-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI 1.4 data line safeguarding, and industrial sensor interface hardening requiring stable component supply across production lifecycles.
Supply support for VESD05A1C-02Z-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 protection components with emphasis on reliability and precision.
The VESD05A1C-02Z-GS08 belongs to Vishay's ESD-Protection Diode family, engineered specifically for high-speed digital interface protection in space-constrained portable and automotive electronics.
FAQ
What is the maximum operating temperature range for the VESD05A1C-02Z-GS08?
The VESD05A1C-02Z-GS08 has a specified junction temperature range of -40 °C to +125 °C and storage temperature range of -55 °C to +150 °C. This wide thermal envelope supports deployment in automotive under-hood modules, industrial PLCs, and outdoor consumer devices where ambient extremes are expected. The device maintains its 5 V VRWM and ±30 kV ESD rating across this full range when derated per Vishay's thermal guidelines.
Does the VESD05A1C-02Z-GS08 support lead-free reflow soldering?
Yes, the VESD05A1C-02Z-GS08 is fully compatible with lead-free reflow processes. Its SOD923 package is rated for MSL level 1 per J-STD-020 and withstands peak temperatures of 260 °C for 10 seconds at the terminals. The device uses halogen-free, UL 94 V-0 compliant molding compound and meets RoHS 2002/95/EC and WEEE 2002/96/EC directives, making it suitable for modern eco-compliant manufacturing lines.
How does the BiAs mode of the VESD05A1C-02Z-GS08 improve ESD protection compared to standard bidirectional diodes?
The BiAs (Bidirectional Asymmetrical) mode of the VESD05A1C-02Z-GS08 delivers distinct forward and reverse clamping characteristics: ~1.2 V forward voltage for negative transients versus ~8 V reverse clamping for positive surges. This asymmetry minimizes ground bounce and reference shift during negative ESD events-critical for high-speed differential signaling where common-mode stability affects receiver jitter and bit error rate. Standard symmetric diodes clamp both polarities near the same voltage, increasing ground noise risk.
What is the typical capacitance of the VESD05A1C-02Z-GS08 at operating bias, and why does it matter?
The VESD05A1C-02Z-GS08 exhibits 38 pF capacitance at 2.5 V reverse bias and 1 MHz, dropping to 63–75 pF at 0 V. This bias-dependent value is critical because real-world signal lines operate at DC bias (e.g., USB D+ at ~1.5–3.3 V). Using the 38 pF figure-not the zero-bias value-ensures accurate high-speed simulation and eye-diagram margin analysis for USB 2.0 and HDMI 1.4 links, preventing unexpected signal integrity failure.
Can the VESD05A1C-02Z-GS08 be used in place of a unidirectional ESD diode?
No-the VESD05A1C-02Z-GS08 is inherently bidirectional and must be installed with pin 1 grounded and pin 2 on the signal line. Substituting it for a unidirectional diode (e.g., anode-to-rail configuration) would short the protected line to ground during normal operation. Its BiAs architecture requires correct polarity orientation: cathode (pin 1) to ground, anode (pin 2) to signal. Misorientation causes immediate functional failure.
VESD05A1C-02Z-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SOD-923
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 10V
- Current - Peak Pulse (10/1000µs):
- 8A (8/20µs)
- Power - Peak Pulse:
- 80W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 63pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
VESD05A1C-02Z-GS08 FAQ
1.How can I place an order for VESD05A1C-02Z-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A1C-02Z-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 VESD05A1C-02Z-GS08 reliable?
The price and inventory of VESD05A1C-02Z-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A1C-02Z-GS08 is usually 5 days.
3.What payment methods are accepted for VESD05A1C-02Z-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A1C-02Z-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A1C-02Z-GS08?
VESD05A1C-02Z-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A1C-02Z-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 VESD05A1C-02Z-GS08?
For technical support, including VESD05A1C-02Z-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A1C-02Z-GS08 requirements.
6.How does Aetrix verify that VESD05A1C-02Z-GS08 is sourced from the original manufacturer or authorized distributors?
All VESD05A1C-02Z-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 VESD05A1C-02Z-GS08 meets industry standards.
7.What is the process for return or replacement of VESD05A1C-02Z-GS08?
All VESD05A1C-02Z-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A1C-02Z-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 VESD05A1C-02Z-GS08 part is unused and in its original packaging.
Return procedure for VESD05A1C-02Z-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD05A1C-02Z-GS08 Tags
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