My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VESD26A2-03GHG3-08
- Part No.:
- VESD26A2-03GHG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VESD26A2-03GHG3-08.pdf
- Description:
- TVS DIODE 26VWM 48VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:4,136
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VESD26A2-03GHG3-08 from Vishay Semiconductors is a dual-line unidirectional ESD-protection diode array in SOT-323 package, rated for 26 V reverse standoff voltage, 2.1 A peak pulse current (IEC 61000-4-5), and 20 kV ESD immunity (IEC 61000-4-2 contact/air discharge). It protects two signal lines in high-speed interfaces such as USB 2.0, HDMI, or automotive infotainment data links.
For engineers reviewing the VESD26A2-03GHG3-08 datasheet, VESD26A2-03GHG3-08 pinout, VESD26A2-03GHG3-08 application, or VESD26A2-03GHG3-08 equivalent, this page delivers verified electrical specs, SOT-323 terminal mapping, clamping behavior under transient stress, low 17.5 pF typical capacitance at 0 V, and AEC-Q101-qualified alternatives for automotive-grade design validation.
Technical Context
This device implements two independent unidirectional TVS diodes in a single SOT-323 package, with cathode-anode-cathode pin configuration enabling protection of two I/O lines referenced to common ground. Each channel features a 26 V reverse standoff voltage and clamps transients to ≤48 V at 2.1 A (8/20 μs).
Its 1.9 Ω dynamic resistance (TLP, 100 ns) ensures fast response to sub-nanosecond ESD events, while <0.01 μA reverse leakage at 26 V supports low-power signal integrity in battery-operated systems. The device meets AEC-Q101 stress testing requirements for automotive under-hood and infotainment applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 26 V - Maximum continuous DC or RMS signal voltage the device blocks without conduction; sets upper limit for protected line operating voltage. |
| Peak Pulse Current (8/20 μs) | 2.1 A - Maximum transient surge current it safely shunts without failure; defines robustness against IEC 61000-4-5 surges. |
| Reverse Clamping Voltage | 43–48 V at 2.1 A - Maximum voltage seen by protected circuit during worst-case ESD event; determines downstream IC survivability margin. |
| Capacitance (0 V, 1 MHz) | 14–21 pF - Signal-line loading effect; low value preserves signal integrity up to ~500 MHz in USB 2.0 or LVDS paths. |
| ESD Immunity | ±20 kV contact / ±20 kV air (IEC 61000-4-2) - Validated minimum ESD stress level it withstands over 10 pulses without parameter shift. |
| Dynamic Resistance | 1.9 Ω (TLP, 100 ns) - Low impedance during fast ESD rise time; enables rapid voltage clamping before protected IC is overstressed. |
| Operating Temperature | −55 °C to +150 °C - Full junction temperature range supporting under-hood automotive and industrial environments. |
Pinout & Package
SOT-323 package: 3-terminal surface-mount plastic case (2.2 mm × 1.35 mm × 0.95 mm), lead-free Sn (e3) plating, MSL level 1, compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to first protected signal line; conducts ESD current to ground when voltage exceeds breakdown threshold. |
| Pin 2 | Anode of Channel 2 | Connects to second protected signal line; electrically isolated from Pin 1; enables dual-line protection in compact layout. |
| Pin 3 | Common Cathode | Shared ground return path for both channels; must be connected to low-impedance system ground to ensure effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional protection | Two independent anode-to-ground paths in one SOT-323 footprint-reduces board area vs. discrete diodes and avoids bidirectional capacitance penalty. |
| AEC-Q101 qualified option | Available with "H" environmental code (VESD26A2-03GHG3-08)-validated for automotive temperature cycling, humidity, and mechanical shock per AEC-Q101 Rev D. |
| Low dynamic resistance | 1.9 Ω enables sub-100 ns clamping response-critical for protecting sensitive 1.8 V/3.3 V interface ICs from nanosecond-risetime ESD. |
| Ultra-low leakage | <0.01 μA at 26 V reverse bias-minimizes standby power loss and prevents false triggering in high-impedance sensor or analog front-end circuits. |
| Controlled capacitance | 17.5 pF typical (0 V, 1 MHz)-preserves signal edge rate and eye diagram integrity in 480 Mbps USB 2.0 and similar high-speed serial links. |
Applications
| USB 2.0 Data Lines | HDMI TMDS Channels |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 transceivers against ESD events during hot-plug insertion in portable or automotive docking stations. IC Role / Device Role: Unidirectional clamping diode array referenced to system ground, placed directly at connector entry point. Use Value: Limits transient voltage to ≤48 V while adding only 17.5 pF loading-maintains signal integrity up to 480 Mbps without equalization. |
Use Scenario: Safeguarding TMDS clock and data pairs in HDMI source devices (e.g., infotainment head units) exposed to user-handling ESD. IC Role / Device Role: Dual-channel ground-referenced ESD clamp, installed before HDMI serializer IC input pins. Use Value: Withstands ±20 kV contact discharge and clamps within 100 ns-prevents latch-up or damage to 3.3 V HDMI PHY receivers. |
| Automotive CAN FD Interfaces | Industrial RS-485 Transceivers |
|
Use Scenario: Protecting CAN_H and CAN_L lines in 5 Mbps CAN FD nodes deployed in engine control modules or body electronics. IC Role / Device Role: Two independent unidirectional clamps sharing cathode to chassis ground-compatible with differential bus architecture. Use Value: −55 °C to +150 °C operation and AEC-Q101 qualification ensure reliability in under-hood thermal cycles and vibration environments. |
Use Scenario: Shielding RS-485 driver/receiver inputs in factory automation PLCs from ESD induced by cable handling or relay switching. IC Role / Device Role: Ground-referenced transient suppressor on A/B lines, placed adjacent to transceiver package. Use Value: 2.1 A peak pulse rating handles IEC 61000-4-5 surges; 26 V standoff matches common 24 V industrial supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD-protection diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J26A-Q | Single-channel, SMA package (larger footprint), 26 V standoff, 27.8 A IPPM, 350 W PPP - higher surge rating but no dual-line integration. | Requires two devices + extra PCB area for dual-line protection; better suited for high-energy surges where space permits. | Select when peak pulse current >2.1 A is required and dual-line integration is not critical. |
| TPD2E001DRYR | Two-channel unidirectional, SOT-553 package, 24 V VRWM, 1.5 A IPPM, 12 pF CD - lower clamping (≤22 V), smaller size, but reduced surge capacity. | Optimized for ultra-portable consumer devices; insufficient for automotive AEC-Q101 or industrial surge compliance. | Select for space-constrained consumer electronics where 20 kV ESD and 2.1 A surge are not mandatory. |
Compared with SMA6J26A-Q and TPD2E001DRYR, VESD26A2-03GHG3-08 uniquely balances dual-line integration, AEC-Q101 qualification, 20 kV ESD rating, and 2.1 A surge capability in the industry-standard SOT-323 footprint-making it optimal for automotive and industrial dual-signal protection where board space and reliability are co-prioritized.
Availability
VESD26A2-03GHG3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial RS-485 networks, and USB 2.0 peripheral designs requiring stable component supply across extended production lifecycles.
Supply support for VESD26A2-03GHG3-08 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, sensors, and passive elements, with leadership in high-reliability protection devices.
VESD26A2-03GHG3-08 belongs to Vishay's VESDxxA2-03G family of dual-line ESD arrays designed specifically for compact, high-speed interface protection in automotive, industrial, and computing applications.
FAQ
What is the maximum working voltage supported by VESD26A2-03GHG3-08?
VESD26A2-03GHG3-08 has a reverse standoff voltage (VRWM) of 26 V, meaning it reliably blocks voltages up to 26 V DC or RMS in normal operation. This makes it suitable for protecting 24 V industrial buses or 3.3 V/5 V logic lines with margin. Exceeding 26 V risks premature conduction and increased leakage, so system operating voltage must remain below this threshold during steady-state conditions.
Does VESD26A2-03GHG3-08 meet automotive qualification standards?
Yes-VESD26A2-03GHG3-08 carries the "H" environmental code, indicating AEC-Q101 qualification. It has passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock per AEC-Q101 Rev D, making it approved for use in automotive powertrain, body control, and infotainment modules.
How does the capacitance of VESD26A2-03GHG3-08 affect high-speed signal integrity?
VESD26A2-03GHG3-08 exhibits 14–21 pF capacitance at 0 V bias and 1 MHz, with typical value 17.5 pF. This low loading preserves rise/fall times and eye opening in USB 2.0 (480 Mbps) and other high-speed differential interfaces. At 26 V reverse bias, capacitance drops further-ensuring minimal impact on signal swing and jitter in real-world operating conditions.
What is the clamping behavior of VESD26A2-03GHG3-08 under ESD stress?
Under IEC 61000-4-2 contact discharge (20 kV), VESD26A2-03GHG3-08 clamps to ≤48 V at its rated 2.1 A peak pulse current (8/20 μs). Its 1.9 Ω dynamic resistance ensures rapid voltage suppression within <100 ns, limiting energy delivered to downstream ICs. This clamping level provides safe margin for 3.3 V and 5 V interface receivers.
Can VESD26A2-03GHG3-08 protect bidirectional signal lines like RS-485?
VESD26A2-03GHG3-08 is unidirectional (anode-to-ground), so it protects signals referenced to ground-ideal for RS-485 A/B lines when used with proper grounding strategy. For true bidirectional protection, two devices may be used back-to-back, but its 26 V standoff and 2.1 A rating align well with standard 24 V RS-485 common-mode ranges and surge requirements per IEC 61000-4-5.
VESD26A2-03GHG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V (Max)
- Voltage - Breakdown (Min):
- 27.6V
- Voltage - Clamping (Max) @ Ipp:
- 48V
- Current - Peak Pulse (10/1000µs):
- 2.1A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 17.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VESD26A2-03GHG3-08 FAQ
1.How can I place an order for VESD26A2-03GHG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD26A2-03GHG3-08 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 VESD26A2-03GHG3-08 reliable?
The price and inventory of VESD26A2-03GHG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD26A2-03GHG3-08 is usually 5 days.
3.What payment methods are accepted for VESD26A2-03GHG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD26A2-03GHG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD26A2-03GHG3-08?
VESD26A2-03GHG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD26A2-03GHG3-08 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 VESD26A2-03GHG3-08?
For technical support, including VESD26A2-03GHG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD26A2-03GHG3-08 requirements.
6.How does Aetrix verify that VESD26A2-03GHG3-08 is sourced from the original manufacturer or authorized distributors?
All VESD26A2-03GHG3-08 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 VESD26A2-03GHG3-08 meets industry standards.
7.What is the process for return or replacement of VESD26A2-03GHG3-08?
All VESD26A2-03GHG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD26A2-03GHG3-08, 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 VESD26A2-03GHG3-08 part is unused and in its original packaging.
Return procedure for VESD26A2-03GHG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD26A2-03GHG3-08 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 …
