STMicroelectronics ESDA14V2BP6
- Part No.:
- ESDA14V2BP6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-563, SOT-666
- Datasheet:
-
ESDA14V2BP6.pdf
- Description:
- TVS DIODE 12VWM SOT666
- Quantity:
- Payment:

- Shipping:

Inventory:18,438
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Product details
Overview
ESDA14V2BP6 from STMicroelectronics is a unidirectional 4-line ESD protection diode array in SOT666 package, rated for 14.2 V breakdown voltage, 8 kV contact / 15 kV air IEC 61000-4-2 ESD immunity, and 50 W peak pulse power (8/20 µs). It protects industrial I/O lines, USB data lines, and sensor interfaces against electrostatic discharge.
For engineers reviewing the ESDA14V2BP6 datasheet, ESDA14V2BP6 pinout, ESDA14V2BP6 application, or ESDA14V2BP6 equivalent, this device offers verified clamping performance at 12 V working voltage, low 25 pF line capacitance, and junction temperature operation up to +150 °C - critical for high-reliability embedded interface protection.
Technical Context
The ESDA14V2BP6 integrates four monolithic silicon avalanche diodes in a single SOT666 package, each configured as a cathode-to-GND unidirectional clamp. Its design enables flexible routing: any I/O pin can serve as GND to emulate bidirectional behavior across subsets of lines.
It operates within –40 °C to +150 °C junction temperature range, with 1.5 Ω dynamic resistance and 5.8 V clamping voltage at 1 A peak pulse current (tp = 2.5 µs), ensuring fast response and minimal signal distortion on protected lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 14.2 V min - ensures reliable turn-on before damage to downstream 12 V logic or analog circuits |
| Clamping Voltage (VCL) | 12 V typ at 1 A - limits transient overvoltage seen by protected ICs during ESD events |
| Junction Capacitance (CJ) | 25 pF at 0 V - low enough for USB 2.0 and I²C signal integrity without bandwidth degradation |
| Peak Pulse Power (PPP) | 50 W (8/20 µs) - sustains repeated IEC 61000-4-2 level 4 discharges without degradation |
| Leakage Current (IR) | 1 µA max at 12 V - negligible loading on high-impedance sensor or reference lines |
| Operating Temperature (Tj) | –40 °C to +150 °C - supports under-hood automotive, industrial PLC, and outdoor equipment use |
Pinout & Package
SOT666 package: 6-pin, surface-mount, lead-free matte tin plating, JEDEC-registered outline, IPC7531-compliant footprint, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| I/O1 | Anode of Channel 1 | Protected signal input; connects to upstream data line (e.g., USB D+) |
| I/O2 | Anode of Channel 2 | Protected signal input; independent clamping path for second I/O line |
| GND | Cathode common return | Low-inductance ground reference for all four clamps; must be tied to system earth |
| GND | Cathode common return | Dual GND pins reduce thermal resistance and improve current sharing during multi-line ESD events |
| I/O4 | Anode of Channel 4 | Protected signal input; supports 4-line protection without external components |
| I/O3 | Anode of Channel 3 | Protected signal input; pin order matches standard SOT666 layout per DS4625 Rev 7 Figure 10 |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 Level 4 Compliance | Validated 8 kV contact / 15 kV air discharge protection - meets industrial immunity requirements out-of-box |
| Flexible Unidirectional/Bidirectional Use | Any I/O pin can be assigned as GND - enables 2-, 3-, or 4-line configurations without redesigning PCB layout |
| Low Capacitance (25 pF) | Preserves signal rise/fall times on 480 Mbps USB 2.0 and 1 MHz I²C buses without added termination |
| High-Temperature Operation | +150 °C Tj max - eliminates derating concerns in sealed enclosures or near power stages |
| ECOPACK® Compliant Packaging | SOT666 with matte tin plating - RoHS-compliant, whisker-resistant, and compatible with lead-free reflow profiles |
Applications
| USB 2.0 Interface Protection | Industrial Sensor Bus Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in factory HMIs and test equipment exposed to operator ESD. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 25 pF capacitance avoids signal integrity loss at 480 Mbps; dual-GND pins minimize ground bounce during 15 kV air discharge. |
Use Scenario: Shielding 4-wire RTD or thermocouple inputs in programmable logic controllers subjected to field maintenance ESD. IC Role / Device Role / Timing Role: Line-level ESD clamp on analog front-end inputs, referenced to isolated sensor ground. Use Value: 14.2 V VBR aligns with 12 V supply rails; 1 µA leakage prevents measurement offset in µV-level precision circuits. |
| Automotive Body Control Module I/O | Consumer Audio Data Lines |
|
Use Scenario: Safeguarding LIN bus and GPIO lines in under-dash BCMs where ambient temperature exceeds 105 °C. IC Role / Device Role / Timing Role: Primary ESD protection stage before internal transceiver or MCU I/O pad. Use Value: +150 °C Tj rating allows operation without thermal derating; SOT666 footprint fits tight board spacing near connectors. |
Use Scenario: Protecting I²S and SPDIF differential pairs in smart speakers and soundbars handling frequent user handling. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp on high-speed digital audio traces. Use Value: 5.8 V clamping at 1 A ensures DAC/ADC inputs remain below absolute maximum ratings during 8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1P6 | Lower 6.1 V breakdown; 70 pF capacitance; 150 W PPP | Better suited for 3.3 V or 5 V logic; higher capacitance limits USB 2.0 use | Select when protecting low-voltage microcontroller I/O with less stringent speed requirements |
| ESDA25-4BP6 | Higher 25 V breakdown; 22 pF capacitance; same 50 W PPP | Required for 24 V industrial fieldbus lines; lower capacitance improves RF immunity margin | Select for CAN FD or RS-485 interfaces where working voltage exceeds 15 V |
Compared with ESDA6V1P6 and ESDA25-4BP6, the ESDA14V2BP6 uniquely balances 12 V system compatibility, USB-grade capacitance, and industrial temperature resilience - making it optimal for mixed-signal edge nodes operating at nominal 12 V rails.
Availability
ESDA14V2BP6 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor bus hardening, and automotive body control module I/O requiring stable component supply and long-term lifecycle support.
Supply support for ESDA14V2BP6 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The ESDAxxxP6 series belongs to ST's dedicated ESD protection portfolio, engineered specifically for robust, low-capacitance, multi-line transient suppression in space-constrained industrial and automotive PCB layouts.
FAQ
Is ESDA14V2BP6 unidirectional or bidirectional?
ESDA14V2BP6 is fundamentally unidirectional - each channel has an anode (I/O pin) and cathode (GND). However, its pinout allows one I/O pin to be used as GND, enabling configurable bidirectional behavior across subsets of lines without external components.
What is the maximum continuous reverse working voltage (VRWM) for ESDA14V2BP6?
The maximum continuous reverse working voltage is 12 V, derived from the 14.2 V minimum breakdown voltage (VBR) and standard 10–20 % safety margin. This matches typical 12 V industrial supply rails and ensures no leakage-induced stress during normal operation.
Can ESDA14V2BP6 protect five signal lines?
No - ESDA14V2BP6 provides four independent ESD protection channels. The datasheet confirms its "4 line ESD protection" designation; the fifth pin in SOT666 is a duplicate GND terminal, not a fifth I/O. For five-line protection, ESDA25-4BP6 or discrete arrays are required.
Does ESDA14V2BP6 require external bias or control circuitry?
No - it is a passive device requiring no power, bias, or enable signals. It functions solely as a voltage-triggered clamp: conducting only during ESD transients above ~14.2 V, remaining high-impedance (<1 µA) during normal 0–12 V operation.
ESDA14V2BP6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-563, SOT-666
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 4
- Voltage - Reverse Standoff (Typ):
- 12V
- Voltage - Breakdown (Min):
- 14.2V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 50W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-666
ESDA14V2BP6 FAQ
1.How can I place an order for ESDA14V2BP6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA14V2BP6 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 ESDA14V2BP6 reliable?
The price and inventory of ESDA14V2BP6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA14V2BP6 is usually 5 days.
3.What payment methods are accepted for ESDA14V2BP6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA14V2BP6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA14V2BP6?
ESDA14V2BP6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA14V2BP6 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 ESDA14V2BP6?
For technical support, including ESDA14V2BP6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA14V2BP6 requirements.
6.How does Aetrix verify that ESDA14V2BP6 is sourced from the original manufacturer or authorized distributors?
All ESDA14V2BP6 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 ESDA14V2BP6 meets industry standards.
7.What is the process for return or replacement of ESDA14V2BP6?
All ESDA14V2BP6 units undergo pre-shipment inspection (PSI). If there is an issue with ESDA14V2BP6, 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 ESDA14V2BP6 part is unused and in its original packaging.
Return procedure for ESDA14V2BP6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDA14V2BP6 Tags

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