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Vishay General Semiconductor - Diodes Division VESD05B1-02V-G3-08
- Part No.:
- VESD05B1-02V-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
VESD05B1-02V-G3-08.pdf
- Description:
- TVS DIODE 5VWM 9.5VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:13,614
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Product details
Overview
VESD05B1-02V-G3-08 from Vishay Semiconductors is a bidirectional asymmetrical (BiAs) ESD protection diode in SOD-523 package, rated for 5 V working voltage, with ±30 kV IEC 61000-4-2 contact/air discharge immunity, 12 pF typical capacitance at 2.5 V, and clamping voltages of 7.2–9.5 V (reverse) and 0.95–1.9 V (forward) under transient conditions - deployed on high-speed data lines such as USB 2.0 or HDMI interfaces.
For engineers reviewing the VESD05B1-02V-G3-08 datasheet, VESD05B1-02V-G3-08 pinout, VESD05B1-02V-G3-08 application, or VESD05B1-02V-G3-08 equivalent, key selection criteria include its BiAs-mode clamping behavior, low leakage (<0.1 μA), MSL Level 1 solderability, AEC-Q101 qualification, and compact 1.3 × 0.85 mm footprint for space-constrained PCB layouts.
Technical Context
The VESD05B1-02V-G3-08 implements bidirectional asymmetrical protection: reverse clamping initiates above 6 V breakdown (VBR = 6–7.5 V), while forward clamping operates near ground (VF = 0.95–1.9 V), enabling precise voltage limiting on both polarities. Its dynamic resistance is 0.2 Ω (pin 1→2) and 0.31 Ω (pin 2→1), critical for low-voltage overshoot control during fast transients.
Designed for single-line protection, it supports IEC 61000-4-2 (±30 kV) and IEC 61000-4-5 (3.5 A, 8/20 μs), with peak pulse power of 40 W and junction temperature range from –55 °C to +150 °C - making it suitable for automotive infotainment and industrial HMI interfaces where reliability under thermal stress and ESD events is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection mode | BiAs (bidirectional asymmetrical): distinct clamping levels for positive/negative transients enables tighter signal integrity control |
| Working voltage (VRWM) | 5 V maximum - defines safe operating range for protected 5 V logic/data lines without leakage-induced errors |
| Clamping voltage (VC) | 7.2–9.5 V @ 1 A (reverse); 0.95–1.9 V @ 0.2–3.5 A (forward) - limits voltage seen by downstream ICs during ESD events |
| Capacitance (CD) | 12 pF @ 2.5 V, 1 MHz - low enough to avoid signal degradation on USB 2.0 (480 Mbps) and I²C buses |
| ESD rating | ±30 kV contact & air discharge per IEC 61000-4-2 - exceeds Level 4 immunity requirements for consumer and automotive end equipment |
| Leakage current (IR) | <0.1 μA @ 5 V - ensures minimal DC loading on sensitive analog or low-power sensor interfaces |
| Package | SOD-523 (1.3 × 0.85 × 0.7 mm) - ultra-compact footprint compatible with fine-pitch routing and automated optical inspection (AOI) |
Pinout & Package
SOD-523 package: 2-terminal surface-mount device with cathode marking bar on pin 1 side; dimensions 1.3 mm × 0.85 mm × 0.7 mm; MSL Level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to system ground; provides return path for positive transients and forward conduction path for negative transients |
| Pin 2 | Anode / Signal Line Terminal | Connected to protected data line (e.g., USB D+, HDMI TMDS+); conducts ESD current to ground via BiAs clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock - suitable for infotainment and ADAS sensor interfaces |
| Low profile height < 0.7 mm | Enables stacking under connectors or placement adjacent to fine-pitch BGA ICs without interference or Z-height conflicts |
| Sn (e3) lead plating | RoHS-compliant tin termination compatible with standard vision-based AOI systems - no X-ray inspection required for solder joint verification |
| Dynamic resistance (rdyn) | 0.2 Ω (1→2), 0.31 Ω (2→1) - minimizes voltage overshoot during sub-nanosecond TLP pulses, preserving signal integrity |
Applications
| USB 2.0 Interface Protection | HDMI TMDS Channel Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in portable medical devices against repeated ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Standalone ESD clamp placed directly at connector entry point, operating in BiAs mode to limit both positive and negative transients to safe levels. Use Value: 12 pF capacitance avoids signal rise-time degradation at 480 Mbps; ±30 kV rating ensures compliance with IEC 61000-4-2 Level 4 for handheld clinical equipment. | Use Scenario: Shielding HDMI TMDS+ and TMDS− differential pairs in automotive head units from ESD coupling through display cables. IC Role / Device Role / Timing Role: Single-line BiAs protector per channel, grounded at chassis via Pin 1, with low VF clamping suppressing negative spikes below 1.2 V. Use Value: 0.95 V forward clamping at 0.2 A prevents false logic states in 3.3 V TMDS receivers; AEC-Q101 qualification supports 15-year automotive service life. |
| I²C Bus Protection | Automotive Sensor Interface |
Use Scenario: Safeguarding I²C SDA/SCL lines connecting microcontrollers to EEPROMs or environmental sensors in smart building controllers. IC Role / Device Role / Timing Role: Low-leakage (0.01 μA typ.) ESD shunt placed inline with each bus line, minimizing impact on pull-up resistor networks. Use Value: <0.1 μA IR ensures stable bus voltage under 10 kΩ pull-ups; 5 V VRWM matches standard I²C logic levels without level-shifting overhead. | Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., pressure, temperature) in engine control modules exposed to under-hood ESD. IC Role / Device Role / Timing Role: Ground-referenced transient suppressor on single-ended sensor outputs, leveraging BiAs clamping to preserve signal fidelity across –55 °C to +150 °C. Use Value: Junction temperature range and MSL Level 1 support reflow compatibility with high-temp automotive PCB assembly; 40 W peak pulse power handles load-dump induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 5.5 V VRWM, 11 pF CD @ 0 V, ±8 kV IEC 61000-4-2 contact | Lower ESD rating (±8 kV vs. ±30 kV); not AEC-Q101 qualified | Preferred for cost-sensitive consumer electronics where full automotive immunity is unnecessary |
| ESD5Z5.0T1G | 5.0 V VRWM, 15 pF CD @ 0 V, ±30 kV IEC 61000-4-2, but unidirectional configuration | Lacks BiAs-mode - requires separate forward/reverse protection paths for bidirectional signals | Applicable only when circuit topology allows dedicated ground-referenced unidirectional clamps per polarity |
Compared with TPD2E001DRYR and ESD5Z5.0T1G, the VESD05B1-02V-G3-08 delivers superior automotive-grade robustness via AEC-Q101 qualification and true BiAs clamping - eliminating need for dual-diode arrangements while maintaining <12 pF capacitance and <0.1 μA leakage for high-speed, low-power interfaces.
Availability
VESD05B1-02V-G3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS channel safeguarding, and automotive sensor interface applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for VESD05B1-02V-G3-08 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors - with over 50 years of expertise in high-reliability protection devices.
The VESD series targets high-speed data line protection in automotive, industrial, and medical systems, emphasizing AEC-Q101 compliance, ultra-low capacitance, and asymmetrical clamping to preserve signal integrity under severe ESD stress.
FAQ
What is the clamping voltage behavior of the VESD05B1-02V-G3-08 under ESD stress?
The VESD05B1-02V-G3-08 exhibits bidirectional asymmetrical (BiAs) clamping: reverse clamping voltage is 7.2–9.5 V at 1 A, while forward clamping is 0.95–1.9 V across 0.2–3.5 A. This asymmetry allows tight suppression of negative transients near ground while limiting positive excursions to safe levels for 5 V logic - a key advantage over symmetrical diodes in high-speed data lines.
Is the VESD05B1-02V-G3-08 qualified for automotive applications?
Yes, the VESD05B1-02V-G3-08 is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature operating life, and ESD robustness validation. Its –55 °C to +150 °C junction temperature range and MSL Level 1 rating further support use in automotive infotainment, body control modules, and sensor interfaces.
What is the capacitance of the VESD05B1-02V-G3-08 at operating bias?
The VESD05B1-02V-G3-08 has a typical capacitance of 12 pF at 2.5 V reverse bias and 1 MHz - measured under realistic signal-line operating conditions. At 0 V bias, capacitance rises to 19–23 pF. This low, bias-dependent capacitance ensures minimal distortion on USB 2.0, I²C, and other 10–100 Mbps digital interfaces.
How is the VESD05B1-02V-G3-08 packaged and handled during PCB assembly?
The VESD05B1-02V-G3-08 is supplied in SOD-523 package on 8 mm tape-and-reel (8,000 pcs/reel), with Sn (e3) lead finish. It is MSL Level 1 compliant, allowing unlimited floor life and peak reflow up to 260 °C - compatible with standard SMT processes and automated optical inspection without X-ray verification.
Does the VESD05B1-02V-G3-08 require external biasing or control signals?
No, the VESD05B1-02V-G3-08 is a passive, two-terminal device requiring no external power, biasing, or control. It functions solely as a voltage-triggered clamp: Pin 1 connects to ground, Pin 2 to the protected line. Its BiAs-mode operation is intrinsic to the internal diode structure and needs no configuration or firmware support.
VESD05B1-02V-G3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-79, SOD-523
- 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:
- 9.5V
- Current - Peak Pulse (10/1000µs):
- 3.5A (8/20µs)
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 23pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
VESD05B1-02V-G3-08 FAQ
1.How can I place an order for VESD05B1-02V-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05B1-02V-G3-08 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 VESD05B1-02V-G3-08 reliable?
The price and inventory of VESD05B1-02V-G3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05B1-02V-G3-08 is usually 5 days.
3.What payment methods are accepted for VESD05B1-02V-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05B1-02V-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05B1-02V-G3-08?
VESD05B1-02V-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05B1-02V-G3-08 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 VESD05B1-02V-G3-08?
For technical support, including VESD05B1-02V-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05B1-02V-G3-08 requirements.
6.How does Aetrix verify that VESD05B1-02V-G3-08 is sourced from the original manufacturer or authorized distributors?
All VESD05B1-02V-G3-08 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 VESD05B1-02V-G3-08 meets industry standards.
7.What is the process for return or replacement of VESD05B1-02V-G3-08?
All VESD05B1-02V-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05B1-02V-G3-08, 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 VESD05B1-02V-G3-08 part is unused and in its original packaging.
Return procedure for VESD05B1-02V-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD05B1-02V-G3-08 Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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