My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VGSOT03-HG3-08
- Part No.:
- VGSOT03-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT03-HG3-08.pdf
- Description:
- TVS DIODE 3.3VWM 12.3VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VGSOT03-HG3-08 from Vishay Semiconductors is a unidirectional single-line ESD protection diode in SOT-23 package, rated for 3.3 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2/ISO 10605 ESD immunity, and 540 W peak pulse power (8/20 μs). It delivers 44 A peak pulse current and clamps transients to ≤12.3 V at full stress, protecting USB 2.0 data lines in industrial human-interface devices.
For engineers reviewing the VGSOT03-HG3-08 datasheet, VGSOT03-HG3-08 pinout, VGSOT03-HG3-08 application, or VGSOT03-HG3-08 equivalent, this page provides verified electrical specs, BiAs-mode clamping behavior, SOT-23 terminal mapping, automotive-grade AEC-Q101 qualification status, and real-world use cases in low-capacitance signal line protection.
Technical Context
The VGSOT03-HG3-08 implements Bidirectional Asymmetrical (BiAs) protection mode: pin 1 grounded, pin 3 connected to protected line. During positive transients, it conducts above 4.6 V (typical VBR), clamping to ≤12.3 V at 44 A; negative transients forward-bias the diode, clamping near ground with VF ≤ 4.5 V at full current.
Its design targets high-speed interfaces requiring low capacitance (460–600 pF at 0 V) and fast response to sub-nanosecond ESD events. The device meets AEC-Q101 Class H3B (>8 kV HBM) and operates from –55 °C to +150 °C junction temperature, supporting under-hood automotive and harsh industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 3.3 V - Maximum continuous reverse voltage before leakage exceeds 100 µA; sets operating margin for 3.3 V logic/data lines. |
| VBR (min/typ/max) | 4.0 / 4.6 / 5.5 V - Breakdown threshold at 1 mA IR; defines earliest conduction point for transient suppression. |
| VC @ IPPM = 44 A | ≤12.3 V - Clamping voltage during worst-case 8/20 µs surge; ensures downstream ICs see safe voltage stress. |
| Capacitance @ 0 V | 460–600 pF - Signal-line loading at DC bias; impacts USB 2.0 eye diagram integrity and rise/fall time. |
| ESD Immunity | ±30 kV contact/air - Complies with IEC 61000-4-2 and ISO 10605; qualifies for front-panel button, port, and display interface protection. |
| PPPM (8/20 µs) | 540 W - Peak power dissipation capability; determines survivability against lightning-induced surges per IEC 61000-4-5. |
| TJ max. | +150 °C - Maximum junction temperature; enables placement near heat sources in sealed enclosures. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-terminal surface-mount, green molding compound (UL 94 V-0), MSL level 1, 9.2 mg weight, compatible with standard reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (Anode common) | Low-inductance return path for ESD current; must connect directly to system ground plane. |
| Pin 2 | No connection (NC) | Internal die pad; electrically isolated and thermally inactive; no PCB trace required. |
| Pin 3 | Protected Line (Cathode) | Input for signal/data line; clamps to ground during overvoltage; placed immediately before IC input pin. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-mode clamping | Asymmetric forward/reverse clamping (VF ≤ 4.5 V / VC ≤ 12.3 V) minimizes ground bounce and preserves signal integrity on bidirectional lines. |
| AEC-Q101 qualified | Qualified per AEC-Q101 Rev D, Class H3B (>8 kV HBM), enabling use in automotive infotainment and body control modules. |
| e3 Sn termination | Lead (Pb)-free, matte tin plating (IPC J-STD-006), RoHS-compliant, compatible with Pb-free and SnPb soldering processes. |
| Low leakage at VRWM | IR ≤ 100 µA at 3.3 V ensures minimal standby power loss and avoids false triggering in battery-powered systems. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH; eliminates bake requirements and simplifies SMT assembly planning. |
Applications
| USB 2.0 Interface Protection | Industrial Touch Panel Inputs |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports on programmable logic controllers against ESD from operator contact. IC Role / Device Role / Timing Role: Single-line unidirectional clamp placed between connector and USB transceiver IC, with BiAs-mode ensuring low forward clamping on signal reversals. Use Value: 460–600 pF capacitance maintains <1.5 ns rise time compliance; ±30 kV ESD rating prevents latch-up or damage during factory handling and field maintenance. |
Use Scenario: Shielding resistive touch overlay signals (X+, X−, Y+, Y−) in outdoor HMIs exposed to repeated finger discharge. IC Role / Device Role / Timing Role: Discrete ESD shunt on each analog sensor line, leveraging low VRWM (3.3 V) to match microcontroller ADC input range. Use Value: 12.3 V max clamping at 44 A limits voltage excursion below MCU absolute maximum ratings; AEC-Q101 qualification supports extended temperature cycling. |
| Automotive Diagnostic Port (OBD-II) | Medical Patient Monitor Buttons |
Use Scenario: Safeguarding CAN FD and K-Line pins in OBD-II connectors against roadside ESD events during vehicle servicing. IC Role / Device Role / Timing Role: Unidirectional transient suppressor on each diagnostic line, grounded via shortest possible trace to chassis ground. Use Value: 540 W peak power rating handles combined ESD + burst energy; TJ max. of +150 °C sustains operation near engine bay electronics. |
Use Scenario: ESD hardening of membrane switch inputs on bedside patient monitors subject to frequent nurse glove contact. IC Role / Device Role / Timing Role: Point-of-entry protection on each button trace, placed before internal pull-up/pull-down resistors. Use Value: ≤100 µA leakage at 3.3 V prevents false keypress detection; ±30 kV air discharge rating exceeds IEC 61000-4-2 Level 4 requirement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | Higher VRWM (3.3 V same), but higher clamping (VC = 12.5 V @ 43.5 A) and larger SMA package (5.3 × 4.3 mm). | Less suitable for space-constrained USB layouts; requires larger PCB footprint and higher thermal mass. | Select when higher surge robustness is needed and board area permits SMA footprint. |
| TPD2E001DRSR | Lower capacitance (13 pF), dual-channel, but lower PPPM (240 W) and non-AEC-Q101 rated. | Better for high-speed USB 3.0/MIPI, but lacks automotive qualification and single-line flexibility. | Select for multi-line, high-frequency interfaces where AEC-Q101 is not required. |
Compared with SMAJ3.3A and TPD2E001DRSR, the VGSOT03-HG3-08 uniquely balances AEC-Q101 qualification, SOT-23 compactness, and 540 W surge capacity-making it optimal for automotive and industrial USB 2.0 and analog sensor line protection where reliability and size are co-prioritized.
Availability
VGSOT03-HG3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial touch panel inputs, and automotive OBD-II diagnostic port hardening requiring stable component supply across production lifecycles.
Supply support for VGSOT03-HG3-08 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability passive and protection components for automotive, industrial, and computing markets.
The VGSOT family was engineered specifically for robust, low-capacitance ESD protection of high-speed and mixed-signal interfaces in harsh environments, with emphasis on AEC-Q101 compliance and BiAs-mode performance.
FAQ
What is the exact reverse stand-off voltage (VRWM) of VGSOT03-HG3-08?
The VGSOT03-HG3-08 has a maximum reverse stand-off voltage (VRWM) of 3.3 V, meaning it remains non-conductive up to this voltage under normal operation while limiting reverse leakage to ≤100 µA. This value is confirmed in the "ELECTRICAL CHARACTERISTICS VGSOT03" table on page 5 of Vishay document 86326, and defines its compatibility with 3.3 V logic and data lines.
Does VGSOT03-HG3-08 support automotive applications?
Yes, VGSOT03-HG3-08 is AEC-Q101 qualified (Class H3B >8 kV HBM) and rated for junction temperatures from –55 °C to +150 °C, making it suitable for automotive infotainment, body control modules, and OBD-II diagnostic ports. Its green molding compound and e3 Sn terminations further align with automotive manufacturing standards.
What is the clamping voltage of VGSOT03-HG3-08 under full 44 A surge current?
Under an 8/20 µs surge current of 44 A (IPPM), the VGSOT03-HG3-08 clamps to a maximum of 12.3 V, as specified in the "ELECTRICAL CHARACTERISTICS VGSOT03" table (page 5, VC parameter). This ensures downstream ICs remain within safe operating voltage limits during worst-case ESD or surge events.
How is the BiAs-mode protection implemented in VGSOT03-HG3-08?
VGSOT03-HG3-08 uses Bidirectional Asymmetrical (BiAs) mode: pin 1 grounded, pin 3 connected to the protected line. Positive transients trigger reverse breakdown (VBR ≈ 4.6 V), clamping to ≤12.3 V; negative transients conduct forward (VF ≤ 4.5 V), clamping near ground-reducing ground bounce and preserving signal fidelity on bidirectional lines.
What is the capacitance of VGSOT03-HG3-08 at zero bias?
The VGSOT03-HG3-08 exhibits a typical capacitance of 460–600 pF at 0 V reverse bias and 1 MHz frequency, as documented in the "ELECTRICAL CHARACTERISTICS VGSOT03" table (page 5, CD parameter). This value is critical for maintaining signal integrity on USB 2.0 and other high-speed analog lines.
VGSOT03-HG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 44A (8/20µs)
- Power - Peak Pulse:
- 540W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 460pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT03-HG3-08 FAQ
1.How can I place an order for VGSOT03-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT03-HG3-08 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 VGSOT03-HG3-08 reliable?
The price and inventory of VGSOT03-HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VGSOT03-HG3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT03-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT03-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT03-HG3-08?
VGSOT03-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT03-HG3-08 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 VGSOT03-HG3-08?
For technical support, including VGSOT03-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT03-HG3-08 requirements.
6.How does Aetrix verify that VGSOT03-HG3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT03-HG3-08 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 VGSOT03-HG3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT03-HG3-08?
All VGSOT03-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT03-HG3-08, 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 VGSOT03-HG3-08 part is unused and in its original packaging.
Return procedure for VGSOT03-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT03-HG3-08 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
