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STMicroelectronics ESDA25SC6Y
- Part No.:
- ESDA25SC6Y
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
ESDA25SC6Y.pdf
- Description:
- TVS DIODE 24VWM 51VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:12,747
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Product details
Overview
ESDA25SC6Y from STMicroelectronics is an automotive-grade quad-line unidirectional Transil™ TVS diode array designed for ESD and EOS transient overvoltage protection on data and transmission lines. It features a 25 V minimum breakdown voltage (VBR), 400 W peak pulse power (8/20 µs), 9 A peak pulse current (IPP), 24 V clamping voltage at IPP, and AEC-Q101 qualification - deployed in infotainment signal lines, CAN/FlexRay interfaces, and USB connectivity ports.
For engineers reviewing the ESDA25SC6Y datasheet, ESDA25SC6Y pinout, ESDA25SC6Y application, or ESDA25SC6Y equivalent, key selection criteria include ISO 10605 ±30 kV ESD robustness, ISO 7637-2 Pulse 1/2a/3a/3b surge immunity, SOT23-6L footprint compatibility, low leakage (<1 µA at 24 V), and line capacitance of 60 pF for high-speed signal integrity.
Technical Context
The ESDA25SC6Y integrates four independent unidirectional TVS elements in a single monolithic silicon die, each clamping positive transients just above the system supply rail and negative transients to ~0.7 V below ground. Its architecture enables simultaneous protection of four bidirectional or unidirectional signal paths without cross-coupling.
It meets stringent automotive transient immunity requirements: ISO 7637-2 Pulse 1 (–100 V), Pulse 2a (+50 V), Pulse 3a (–150 V), and Pulse 3b (+100 V), with thermal stability across –40 °C to +150 °C junction temperature and lead-free reflow compatibility per JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 25 V - Ensures reliable triggering above nominal 24 V system rails while avoiding false clamping during normal operation. |
| VCL @ IPP | 24 V at 9 A (8/20 µs) - Limits downstream IC stress to safe levels during ESD events without disrupting logic-level signaling. |
| CLINE (typ) | 60 pF - Maintains signal integrity on 10–100 Mbps automotive serial buses (e.g., LIN, SENT, low-speed CAN). |
| IPP | 9 A - Withstands ISO 7637-2 Pulse 3a (–150 V) and Pulse 3b (+100 V) surges with margin under worst-case PCB trace inductance. |
| PPP | 400 W (8/20 µs) - Delivers robust energy absorption for multi-pulse ESD and load-dump-like transients in compact SOT23-6L form factor. |
| TJ range | –40 °C to +150 °C - Supports under-hood and cabin-mounted applications without derating or thermal shutdown. |
Pinout & Package
ESDA25SC6Y is housed in a RoHS-compliant, halogen-free SOT23-6L package (JEDEC TO-236AB), measuring 2.8–3.05 mm × 1.5–1.75 mm × 1.1–1.45 mm, with gull-wing leads optimized for automated surface-mount assembly and reflow soldering per ST's recommended profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first protected signal line; connects to external trace before IC input. |
| 2 | Cathode 1 | Clamp return path to ground for Line 1; must be routed with low-inductance ground plane connection. |
| 3 | Anode 2 | Input terminal for second protected signal line; electrically isolated from Pin 1. |
| 4 | Cathode 2 | Clamp return path to ground for Line 2; shares common cathode structure with Pins 2 and 6. |
| 5 | Anode 3 | Input terminal for third protected signal line; supports independent routing for differential pairs. |
| 6 | Cathode 3 / Cathode 4 | Shared cathode node for Lines 3 and 4; requires single low-impedance ground tie to minimize clamping voltage rise. |
Key Features
| Feature | Design Value |
|---|---|
| Quad unidirectional protection | Four independent clamping paths in one device reduce PCB area by >60% vs. discrete diodes and eliminate inter-channel crosstalk risk. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress - eliminates need for additional qualification testing. |
| ISO 10605 ±30 kV compliance | Passes both air and contact discharge tests at 150 pF/330 Ω and 330 pF/330 Ω configurations - exceeds most OEM ESD requirements. |
| Low leakage current | <1 µA at 24 V (TA = 25 °C) - prevents signal attenuation and battery drain in always-on vehicle modules. |
| ECOPACK® packaging | Lead-free, halogen-free, UL94 V0 epoxy - satisfies global environmental mandates (RoHS, REACH, ELV) without performance trade-offs. |
Applications
| Infotainment Signal Protection | CAN Bus Interface Protection |
|---|---|
|
Use Scenario: Protecting HDMI, LVDS, or FPD-Link III video/data lines between head unit and display in automotive infotainment systems. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping ESD-induced voltage spikes before they reach serializer/deserializer IC inputs. Use Value: Prevents pixel corruption, screen flicker, or blackouts during door-handle ESD events while maintaining <60 pF line loading for 1.5 Gbps signal fidelity. |
Use Scenario: Shielding CAN_H and CAN_L lines at gateway ECUs against ESD and load dump coupling from adjacent 12 V circuits. IC Role / Device Role / Timing Role: Dual-line transient suppressor placed at connector entry point, referenced to chassis ground with minimal loop area. Use Value: Enables uninterrupted CAN communication during ISO 10605 ±30 kV discharges and ISO 7637-2 Pulse 3a (–150 V) without bus arbitration errors or node reset. |
| USB Type-C Port Protection | LIN/Sent Sensor Interface Protection |
|
Use Scenario: Safeguarding USB 2.0 D+/D– and VBUS lines in vehicle telematics modules exposed to user-accessible ports. IC Role / Device Role / Timing Role: Four-channel TVS array covering both differential data pair and power line, with separate cathode paths to avoid ground bounce. Use Value: Meets USB-IF ESD requirements while limiting VCL to 24 V - protecting 3.3 V PHY transceivers without compromising hot-plug detection timing. |
Use Scenario: Securing LIN bus or SENT sensor inputs (e.g., pressure, temperature) in engine control units subject to under-hood ESD and ignition noise. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on LIN TX/RX and SENT output lines, mounted within 5 mm of connector. Use Value: Maintains LIN baud rate accuracy (up to 20.2 kbaud) and SENT frame integrity by holding CLINE ≤60 pF and leakage <1 µA at 12 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1SC6Y | Lower VBR (6.1 V min), lower VCL (5.2 V), higher CLINE (190 pF) | Targeted at 5 V logic buses (e.g., UART, SPI); unsuitable for 24 V systems due to premature conduction. | Select only for sub-12 V signal lines where tighter clamping and higher capacitance are acceptable. |
| ESDA14V2SC6Y | VBR = 14.2 V min, VCL = 12 V at 14 A, CLINE = 100 pF | Balances 12 V battery rail margin and ESD robustness; used in body control modules with mixed 5/12 V interfaces. | Preferred when protecting 12 V CAN/LIN nodes requiring higher IPP than ESDA25SC6Y but lower VBR than 24 V systems. |
Compared with ESDA6V1SC6Y and ESDA14V2SC6Y, ESDA25SC6Y provides optimal clamping headroom for 24 V automotive subsystems - avoiding false triggering during cold-crank dips while delivering superior surge energy handling and lower line capacitance for high-speed links.
Availability
ESDA25SC6Y is available at Aetrix Electronics and suitable for automotive infotainment systems, CAN/LIN network gateways, and USB-based telematics modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ESDA25SC6Y 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 ESDAxxSCxY series was developed specifically for automotive signal-line ESD protection - emphasizing AEC-Q101 reliability, ISO 10605/7637-2 compliance, and ultra-low parasitic capacitance in space-constrained packages.
FAQ
What is the maximum operating voltage for ESDA25SC6Y in continuous DC conditions?
The ESDA25SC6Y has a standoff voltage (VRWM) of 24 V, meaning it can sustain up to 24 V DC continuously without leakage exceeding 1 µA. This aligns with nominal 24 V automotive systems and provides 1 V margin below its 25 V minimum breakdown threshold to prevent unintended conduction during normal operation or cold-crank transients.
Can ESDA25SC6Y protect bidirectional signal lines like RS-485 or CAN?
No - ESDA25SC6Y is unidirectional and intended for single-ended or asymmetric signal paths referenced to ground. For true bidirectional lines such as CAN_H/CAN_L, two ESDA25SC6Y devices (one per line) or a dedicated bidirectional array like ESDALYV5-1BF3 is required to clamp both polarities effectively without forward-biasing during normal signaling.
How does the SOT23-6L package affect thermal performance during repeated ESD strikes?
The SOT23-6L package delivers a junction-to-ambient thermal resistance (RθJA) of ~300 °C/W on standard 1 oz copper FR-4. Under repetitive 8/20 µs pulses at 1 Hz, the device remains within its –40 °C to +150 °C TJ limit if PCB layout includes ≥2 cm² of 2-layer ground copper directly under the package and short, wide traces to ground vias.
Is ESDA25SC6Y compatible with lead-free reflow profiles per JEDEC J-STD-020?
Yes - ESDA25SC6Y is qualified for lead-free reflow with a peak temperature of 260 °C for 10 seconds, matching JEDEC Level 1 moisture sensitivity and ST's recommended reflow profile (preheat 150–200 °C, soak 180–200 °C, ramp-up ≤3 °C/s, peak 235–260 °C, time above liquidus 60–150 s). No pre-baking is required for dry-packed reels.
ESDA25SC6Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- SOT-23-6
- Series:
- ESDAY, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 25V
- Voltage - Clamping (Max) @ Ipp:
- 51V
- Current - Peak Pulse (10/1000µs):
- 10A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
ESDA25SC6Y FAQ
1.How can I place an order for ESDA25SC6Y through Aetrix?
Please submit a Request for Quotation (RFQ) for ESDA25SC6Y 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 ESDA25SC6Y reliable?
The price and inventory of ESDA25SC6Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESDA25SC6Y is usually 5 days.
3.What payment methods are accepted for ESDA25SC6Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESDA25SC6Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESDA25SC6Y?
ESDA25SC6Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESDA25SC6Y 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 ESDA25SC6Y?
For technical support, including ESDA25SC6Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESDA25SC6Y requirements.
6.How does Aetrix verify that ESDA25SC6Y is sourced from the original manufacturer or authorized distributors?
All ESDA25SC6Y 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 ESDA25SC6Y meets industry standards.
7.What is the process for return or replacement of ESDA25SC6Y?
All ESDA25SC6Y units undergo pre-shipment inspection (PSI). If there is an issue with ESDA25SC6Y, 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 ESDA25SC6Y part is unused and in its original packaging.
Return procedure for ESDA25SC6Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESDA25SC6Y Tags
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