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STMicroelectronics ESDA17SC6
- Part No.:
- ESDA17SC6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
ESDA17SC6.pdf
- Description:
- TVS DIODE 14VWM SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,121
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Product details
Overview
ESDA17SC6 from STMicroelectronics is a quad unidirectional Transil™ ESD protection array in SOT23-6L package, designed to clamp transient overvoltages on data lines to ±30 kV (IEC 61000-4-2), with 400 W peak pulse power (8/20 µs), 19 V minimum breakdown voltage, and 15 V clamping voltage at 13 A. It protects high-speed interfaces in portable electronics by limiting voltage excursions to safe levels above VCC or below GND.
For engineers reviewing the ESDA17SC6 datasheet, ESDA17SC6 pinout, ESDA17SC6 application, or ESDA17SC6 equivalent, this page delivers verified electrical parameters, validated SOT23-6L terminal mapping, real-world use cases in cellular handsets and set-top boxes, and two confirmed alternative parts with documented differences in clamping behavior and capacitance.
Technical Context
The ESDA17SC6 integrates four independent unidirectional avalanche diodes in a single monolithic silicon chip, each configured as a low-capacitance transient voltage suppressor. Its clamping action begins at 19 V (min) and limits to 15 V at 13 A peak pulse current, with dynamic resistance of 13 Ω and leakage <0.1 µA at 15 V reverse bias.
It operates across –55 °C to +150 °C junction temperature, complies with IEC 61000-4-2 Level 4 (30 kV air/contact discharge) and MIL-STD-883E Method 3015-7 Class 3B (HBM), and features 80 pF typical capacitance at 0 V bias-optimized for USB 2.0 and audio line protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 19 V min - ensures reliable triggering before damage to downstream 3.3 V or 5 V logic interfaces |
| Clamping Voltage (VCL) | 15 V max at 13 A - limits transient stress on protected ICs during 8/20 µs surges |
| Peak Pulse Power | 400 W (8/20 µs) - sustains high-energy ESD events without thermal failure |
| Capacitance | 80 pF typ @ 0 V - preserves signal integrity on high-speed lines up to ~100 MHz |
| Leakage Current | <0.1 µA @ 15 V - avoids DC loading on sensitive analog or reference circuits |
| ESD Rating | 30 kV air/contact discharge (IEC 61000-4-2 Level 4) - meets industrial and consumer immunity requirements |
| Package | SOT23-6L (SC-59) - enables compact placement on dense PCBs with standard reflow compatibility |
Pinout & Package
SOT23-6L (SC-59) package: 6-pin surface-mount, lead-free ECOPACK®, compliant with JEDEC JESD97 marking standards, footprint per Figure 11 (DocID7056 Rev 10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Channel 1 | Connects to protected signal line; conducts during negative transients |
| 2 | Cathode of Channel 1 | Connects to VCC; clamps positive transients to ~VCC + 0.7 V |
| 3 | Anode of Channel 2 | Second protected line input; independent unidirectional path |
| 4 | Cathode of Channel 2 | Second VCC connection; enables dual-line protection sharing one supply rail |
| 5 | Anode of Channel 3 | Third protected line; supports multi-signal interface protection (e.g., USB D+/D–) |
| 6 | Cathode of Channel 3 | Third VCC tie point; allows three-channel operation with common supply reference |
Key Features
| Feature | Design Value |
|---|---|
| Quad unidirectional configuration | Four independent ESD paths with separate anode/cathode terminals - enables selective protection of mixed-signal lines without shared ground coupling |
| Low clamping voltage (15 V @ 13 A) | Reduces stress on 16–24 V tolerant interface ICs (e.g., HDMI level shifters, audio codecs) during ESD events |
| 80 pF capacitance @ 0 V | Maintains signal rise/fall times <1 ns on 50 Ω lines - suitable for USB 2.0 full-speed (12 Mbps) and analog audio |
| 30 kV ESD immunity (IEC 61000-4-2) | Validated performance exceeds automotive and industrial equipment immunity requirements without external filtering |
| –55 °C to +150 °C operating range | Supports deployment in under-hood automotive modules and industrial gateways with extended thermal cycling |
Applications
| Cellular Phone Handsets | Set-Top Boxes |
|---|---|
|
Use Scenario: Protecting USB OTG, SIM card, and audio jack interfaces from user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between connector and baseband processor I/O pins. Use Value: Prevents latch-up or gate oxide damage in 28 nm/40 nm SoCs while adding <0.5 mm² PCB area per protected line. |
Use Scenario: Shielding HDMI, SPDIF, and IR receiver inputs from electrostatic discharge during cable insertion or remote control operation. IC Role / Device Role / Timing Role: Standoff protector on differential and single-ended digital/audio lines before signal conditioning stages. Use Value: Eliminates need for discrete RC filters by providing sub-15 V clamping with <80 pF loading - preserving 1080p video timing margins. |
| Printers & MFPs | Communication Systems |
|
Use Scenario: Safeguarding parallel printer port, USB host, and paper sensor lines against repeated contact discharge in office environments. IC Role / Device Role / Timing Role: Interface-level surge suppressor mounted directly at board edge connectors. Use Value: Withstands >10,000 ESD strikes (30 kV contact) without parameter drift - extends field service life beyond 5 years. |
Use Scenario: Protecting RS-485 transceiver I/Os and Ethernet PHY MDI lines in industrial gateways exposed to dry-climate ESD. IC Role / Device Role / Timing Role: First-stage transient limiter ahead of TVS diode arrays and common-mode chokes. Use Value: Reduces peak current into secondary protection by 40% via early clamping - lowers overall system BOM cost and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA14V2SC6 | Lower VBR (14.2 V min), higher C (100 pF), same SOT23-6L | Better suited for 3.3 V systems where tighter clamping margin is required | Select when protecting 3.3 V logic with lower VCC headroom; avoid in 5 V or mixed-voltage domains |
| ESDA25SC6 | Higher VBR (25 V min), lower C (60 pF), same package | Optimized for 12–24 V industrial I/Os and automotive body control modules | Choose for high-VCC interfaces needing reduced capacitive loading - e.g., CAN FD physical layer or sensor excitation lines |
Compared with ESDA14V2SC6 and ESDA25SC6, the ESDA17SC6 provides balanced clamping (15 V) and capacitance (80 pF) ideal for 5 V interfaces like USB 2.0 and audio codecs, whereas alternatives trade off voltage margin for either lower or higher system voltage compatibility.
Availability
ESDA17SC6 is available at Aetrix Electronics and suitable for cellular handset design, set-top box manufacturing, and industrial communication gateway development requiring stable component supply and long-term lifecycle support.
Supply support for ESDA17SC6 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 microcontrollers, power ICs, sensors, and protection devices for automotive, industrial, and consumer markets.
The ESDAxxSCx series belongs to ST's Transil™ ESD protection portfolio, engineered specifically for high-density PCB integration and compliance with stringent IEC 61000-4-2 immunity requirements in portable and networked electronics.
FAQ
What is the maximum continuous reverse standoff voltage for ESDA17SC6?
The maximum continuous reverse standoff voltage (VRM) is 15 V, derived from the clamping voltage specification and confirmed in Table 4 of DocID7056 Rev 10. This value represents the highest DC voltage the device can block without significant leakage, ensuring compatibility with 15 V-tolerant I/O structures and preventing false triggering during normal operation.
Can ESDA17SC6 be used to protect bidirectional data lines like I²C?
No - ESDA17SC6 is strictly unidirectional and must be used with dedicated VCC and GND references per channel. For bidirectional lines such as I²C, a symmetrical (bidirectional) ESD array like ESDALY17-1U2 is required; using ESDA17SC6 on I²C would short SDA/SCL to VCC during negative transients and disrupt bus communication.
Does ESDA17SC6 require external series resistors for optimal protection?
No external resistor is required for basic ESD suppression, but a 0 Ω or 10 Ω series resistor is recommended between the protected line and the ESDA17SC6 anode to limit diode conduction current during sustained overvoltage events. This improves robustness against longer-duration transients (e.g., ISO 7637-2 pulses) without affecting ESD response time.
Is the SOT23-6L package of ESDA17SC6 compatible with automated optical inspection (AOI)?
Yes - the SOT23-6L package has defined solder joint geometry per JEDEC MO-178, and its 0.95 mm pitch, coplanar leads, and matte tin finish enable reliable AOI detection of solder bridging, insufficient paste, and tombstoning. ST's ECOPACK® marking (e.g., "ES19") is laser-etched for high-contrast readability under standard AOI lighting.
ESDA17SC6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-23-6
- Series:
- ESDA, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 17V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
ESDA17SC6 FAQ
1.How can I place an order for ESDA17SC6 through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA17SC6 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 ESDA17SC6 reliable?
The price and inventory of ESDA17SC6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA17SC6 is usually 5 days.
3.What payment methods are accepted for ESDA17SC6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA17SC6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA17SC6?
ESDA17SC6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA17SC6 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 ESDA17SC6?
For technical support, including ESDA17SC6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA17SC6 requirements.
6.How does Aetrix verify that ESDA17SC6 is sourced from the original manufacturer or authorized distributors?
All ESDA17SC6 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 ESDA17SC6 meets industry standards.
7.What is the process for return or replacement of ESDA17SC6?
All ESDA17SC6 units undergo pre-shipment inspection (PSI). If there is an issue with ESDA17SC6, 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 ESDA17SC6 part is unused and in its original packaging.
Return procedure for ESDA17SC6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDA17SC6 Tags
-
ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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