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STMicroelectronics ESDA6V1S3RL
- Part No.:
- ESDA6V1S3RL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ESDA6V1S3RL.pdf
- Description:
- TVS DIODE 5.25VWM 20SO
- Quantity:
- Payment:
- Shipping:
Inventory:5,318
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Product details
Overview
ESDA6V1S3RL from STMicroelectronics is a monolithic 18-channel unidirectional Transil™ ESD protection array in SO-20 package, designed to clamp fast transients on data lines with breakdown voltage 6.1–7.2 V, clamping voltage ≤12 V at 20 A, 200 W peak pulse power (8/20 µs), and leakage <2 µA at 5.25 V - deployed in GSM handset I/O ports and centronics interfaces.
For engineers reviewing the ESDA6V1S3RL datasheet, ESDA6V1S3RL pinout, ESDA6V1S3RL application, or ESDA6V1S3RL equivalent, key selection criteria include channel count (18), dynamic resistance (6 Ω), line-to-ground capacitance (120 pF), IEC 61000-4-2 Level 4 compliance (±25 kV contact), and SO-20 thermal performance up to +150 °C junction temperature.
Technical Context
The ESDA6V1S3RL integrates 18 identical unidirectional Transil™ diodes in a single SO-20 package, each with a defined breakdown threshold (6.1–7.2 V) and clamping behavior governed by dynamic resistance (6 Ω typ.) for precise VCL = VBR + Rd × IPP calculation during ESD events.
It operates using avalanche-based transient suppression: forward-biased clamping to ~1.25 V during negative transients and reverse-biased clamping just above logic supply (e.g., 5.25 V) during positive transients, with line-to-ground capacitance stabilized at 120 pF (0 V bias) to minimize signal distortion on high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 6.1–7.2 V at IR = 1 mA - defines minimum trigger level before clamping activation on each channel |
| Clamping Voltage (VCL) | ≤12 V at IPP = 20 A (8/20 µs) - ensures protected ICs see safe voltage during worst-case ESD strike |
| Peak Pulse Power | 200 W (8/20 µs) - supports repeated ESD strikes without degradation under IEC 61000-4-2 Level 4 stress |
| Leakage Current (IR) | <2 µA at 5.25 V - avoids signal loading or battery drain in always-on portable interfaces |
| Dynamic Resistance (Rd) | 6 Ω typ. - enables predictable VCL calculation for PCB-level transient analysis |
| Line-to-Ground Capacitance | 120 pF at 0 V - balances ESD robustness and signal integrity for <10 Mbps parallel data buses |
| ESD Withstand Level | ±25 kV contact per IEC 61000-4-2 Level 4 - exceeds industrial and consumer equipment immunity requirements |
Pinout & Package
ESDA6V1S3RL is housed in a standard SO-20 (Small Outline, 20-pin) package with 1.27 mm pitch, 12.6–13.0 mm body length, and 7.40–7.60 mm body width - optimized for automated placement and reflow compatibility per JEDEC MS-013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–18 (I/O pins) | Unidirectional ESD protection anode | Each connects to one protected data line; conducts only during positive overvoltage to clamp near VCC |
| 19, 20 (GND) | Common cathode return path | Dual ground pins reduce inductance and improve high-frequency current return during ESD discharge |
Key Features
| Feature | Design Value |
|---|---|
| 18-channel integration | Replaces 18 discrete TVS diodes, reducing PCB area by >70% and eliminating assembly variability |
| Low dynamic resistance (6 Ω) | Enables accurate clamping voltage prediction (VCL = VBR + Rd × IPP) for layout-level ESD margining |
| 120 pF line-to-ground capacitance | Preserves signal rise time on parallel interfaces (e.g., Centronics) without requiring impedance tuning |
| ±25 kV ESD rating | Meets highest IEC 61000-4-2 Level 4 requirement without external shielding or spacing adjustments |
Applications
| GSM Handset I/O Protection | Centronics Parallel Port |
|---|---|
Use Scenario: Protecting USB, SIM, and audio jack interfaces in mobile handsets exposed to frequent human-body ESD events. IC Role / Device Role / Timing Role: Unidirectional clamping array placed within 2 mm of connector to limit transient propagation into baseband processor. Use Value: Prevents latch-up and gate oxide damage in 1.8 V/3.3 V I/O cells while maintaining <12 V clamping at 20 A peak current. | Use Scenario: Shielding 8-bit parallel data lines (STROBE, ACK, BUSY) on legacy printer interfaces from contact ESD. IC Role / Device Role / Timing Role: Single-chip solution replacing 18 discrete diodes across all signal lines and control pins. Use Value: Eliminates routing congestion and solder joint reliability issues associated with discrete arrays, with 120 pF capacitance preserving 5 MHz data timing margins. |
| Modem Data Line Protection | Industrial Control Panel Interface |
Use Scenario: Safeguarding RS-232/RS-485 transceiver I/O pins in DSL/cable modems subjected to field ESD during cable insertion. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at connector footprint to shunt ESD energy before reaching transceiver ESD structures. Use Value: Achieves 200 W pulse handling without derating at +85 °C ambient, ensuring long-term reliability in enclosed chassis. | Use Scenario: Protecting membrane keypad scan lines and LED driver outputs in factory HMIs exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Ground-referenced unidirectional suppressor for low-voltage (5 V) digital inputs and open-collector outputs. Use Value: Maintains <2 µA leakage at 5.25 V to prevent false triggering in high-impedance sense circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDALC6V1-1U2 | 6-channel, SOT-23-6, 12 pF capacitance, 12 kV IEC 61000-4-2 | Lower channel count and capacitance - suited for high-speed serial lines (USB 2.0), not parallel buses | Select when board space is constrained and data rate exceeds 480 Mbps. |
| TPD2E001DRSR | 2-channel, SON-6, 12 pF, ±8 kV IEC 61000-4-2, integrated 100 Ω series resistors | Integrated series termination - targets USB/ HDMI hot-plug ESD, not general-purpose I/O clamping | Choose for differential high-speed interfaces where series matching is required. |
Compared with ESDA6V1S3RL, ESDALC6V1-1U2 offers lower capacitance but lacks channel density for parallel bus protection, while TPD2E001DRSR adds series resistance unsuitable for low-impedance logic lines - ESDA6V1S3RL remains optimal for multi-line, medium-speed, high-ESD-threat applications.
Availability
ESDA6V1S3RL is available at Aetrix Electronics and suitable for GSM handset design, industrial HMI development, legacy parallel interface upgrades, and modem manufacturing requiring stable component supply and full production lifecycle support.
Supply support for ESDA6V1S3RL 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, designing and manufacturing analog, MCU, power, and protection devices for industrial, automotive, and consumer markets.
The ESDA6V1S3RL belongs to ST's Transil™ ESD protection product line, engineered specifically for high-density, multi-line I/O port protection in space-constrained portable and communication equipment.
FAQ
What is the maximum operating junction temperature for ESDA6V1S3RL?
The ESDA6V1S3RL has a maximum operating junction temperature of +150 °C, verified per absolute ratings table in ST's DocID5480 Rev 5. This allows reliable operation in sealed enclosures or near heat-generating components without thermal derating of ESD performance.
Does ESDA6V1S3RL support bidirectional signal lines?
No - ESDA6V1S3RL contains 18 unidirectional Transil™ diodes configured for positive-transient clamping to VCC and negative-transient clamping to ground. For bidirectional lines like USB D+/D−, a dedicated bidirectional array such as ESDALC6V1-1U2 is required.
How is clamping voltage calculated for ESDA6V1S3RL under real-world ESD stress?
Clamping voltage is calculated using VCL = VBR + Rd × IPP, where VBR = 6.1–7.2 V, Rd = 6 Ω (typ.), and IPP is the actual peak current measured at the device location - validated via 2.5 µs rectangular surge testing per ST application note AN4275.
Can ESDA6V1S3RL be used on 1.8 V logic interfaces?
Yes - its 6.1–7.2 V breakdown voltage ensures no conduction during normal 1.8 V operation, and leakage remains <2 µA at 5.25 V. However, clamping occurs at ≥6.1 V, so it must be paired with downstream logic rated for ≥6.5 V absolute maximum input to avoid damage during ESD events.
ESDA6V1S3RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 18
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.25V
- Voltage - Breakdown (Min):
- 6.1V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SO
ESDA6V1S3RL FAQ
1.How can I place an order for ESDA6V1S3RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA6V1S3RL 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 ESDA6V1S3RL reliable?
The price and inventory of ESDA6V1S3RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA6V1S3RL is usually 5 days.
3.What payment methods are accepted for ESDA6V1S3RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA6V1S3RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA6V1S3RL?
ESDA6V1S3RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA6V1S3RL 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 ESDA6V1S3RL?
For technical support, including ESDA6V1S3RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA6V1S3RL requirements.
6.How does Aetrix verify that ESDA6V1S3RL is sourced from the original manufacturer or authorized distributors?
All ESDA6V1S3RL 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 ESDA6V1S3RL meets industry standards.
7.What is the process for return or replacement of ESDA6V1S3RL?
All ESDA6V1S3RL units undergo pre-shipment inspection (PSI). If there is an issue with ESDA6V1S3RL, 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 ESDA6V1S3RL part is unused and in its original packaging.
Return procedure for ESDA6V1S3RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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