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Vishay General Semiconductor - Diodes Division SM15T10CA-E3/9AT
- Part No.:
- SM15T10CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10CA-E3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,799
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Product details
Overview
SM15T10CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 10 V standoff voltage (VWM), and clamping voltage of 17.0 V at 87.2 A peak pulse current. It provides robust protection for automotive sensor signal lines against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T10CA-E3/9AT datasheet, SM15T10CA-E3/9AT pinout, SM15T10CA-E3/9AT application, or SM15T10CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification eligibility (via HE3 suffix variants), low clamping ratio (1.7× VWM), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
The SM15T10CA-E3/9AT implements a glass-passivated silicon junction optimized for fast response (<1 ps) to transient overvoltages and low dynamic impedance under surge conditions. Its bidirectional architecture enables symmetrical clamping in both polarities without external polarity management.
Rated for operation from −65 °C to +150 °C, it features a thermal resistance of 75 °C/W (junction-to-ambient, mounted on 8.0 mm × 8.0 mm copper pads) and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. The device fails short-circuit under overstress - a predictable, system-safe failure mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before leakage exceeds 10 μA; defines safe signal line bias margin. |
| VBR min/max | 11.1 V / 12.3 V at 1 mA - Verified breakdown threshold ensures reliable turn-on during transients above nominal system voltage. |
| VC @ IPPM | 17.0 V at 87.2 A (10/1000 μs) - Clamping voltage limits downstream IC stress to <17 V during worst-case surge events. |
| PPPM | 1500 W - Peak pulse power handling capacity supports protection against lightning surges per IEC 61000-4-5 Level 4. |
| IPPM | 87.2 A - Peak pulse current rating determines minimum source impedance required for safe operation (≥115 Ω). |
| TJ max | +150 °C - Enables use in under-hood automotive environments and industrial enclosures without derating below 125 °C ambient. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with IPC-7351B land patterns. |
Pinout & Package
SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (positive half-cycle) | Connects to protected line; conducts during positive voltage excursions beyond VBR. |
| Cathode | Transient current entry point (negative half-cycle) | Connects to same protected line; conducts during negative voltage excursions - functionally identical to Anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 1500 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive interfaces. |
| Low clamping ratio (1.7× VWM) | Minimizes voltage overshoot during transients, reducing risk of latch-up or gate oxide damage in downstream MOSFETs/ICs. |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free assembly without pre-baking; eliminates moisture-related popcorning risk. |
| AEC-Q101 qualification path | HE3/HM3 variants available for automotive applications requiring qualified TVS components (e.g., ADAS sensor modules). |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., temperature, pressure) in engine control units from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to limit transients before reaching signal conditioning amplifiers or microcontroller ADC inputs. Use Value: Prevents permanent damage to 3.3 V/5 V sensor interface ICs by limiting excursion to ≤17 V during 100 A/10 ms surges. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges due to relay coil switching or motor drive noise. IC Role / Device Role / Timing Role: Primary transient suppression element across 24 V DC input terminals, coordinated with upstream series impedance. Use Value: Maintains functional safety integrity by ensuring no false triggering or reset events during 1 kV/500 A surge tests per IEC 61000-4-5. |
| Telecom Line Interface | Consumer USB/DisplayPort ESD Guard |
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links exposed to lightning-induced common-mode surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to ground, providing symmetric clamping to protect differential receiver inputs. Use Value: Achieves >25 kV contact ESD immunity (IEC 61000-4-2) and 4 kV surge immunity (IEC 61000-4-5) without degrading signal integrity up to 20 Mbps. |
Use Scenario: Secondary-level protection on high-speed data lines (e.g., USB 2.0 D+/D−, DisplayPort AUX CH) where primary ESD arrays cannot handle high-energy transients. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF) bidirectional clamp placed after series ferrite bead to absorb residual energy post-ESD diode conduction. Use Value: Extends system-level surge survivability beyond ±8 kV contact ESD to include ±1 kV lightning-surge events without signal attenuation or jitter increase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower peak power (600 W), smaller SMB package (DO-214AA), higher clamping voltage (17.0 V → 19.9 V at same IPPM). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy threats like ESD and local switching noise. | Select SMBJ10CA only when board space is constrained and surge threat level is ≤1 kV/0.5 kA. |
| SMCJ10CA | Same SMC package and 1500 W rating, but higher VBR (11.1–12.3 V → 12.2–13.5 V) and clamping voltage (17.0 V → 17.5 V); RoHS-compliant with M3 suffix standard. | Compatible drop-in replacement for SM15T10CA-E3/9AT in non-automotive designs; lacks AEC-Q101 path in base variants. | Choose SMCJ10CA for cost-sensitive industrial applications where AEC-Q101 is not mandated and tighter VBR tolerance is acceptable. |
Compared with SMBJ10CA and SMCJ10CA, the SM15T10CA-E3/9AT offers the lowest clamping ratio among 1500 W SMC bidirectional TVS diodes and is the only variant in its family with documented support for AEC-Q101 qualification via HE3 suffix - making it optimal for automotive-grade signal line hardening where reliability and qualification traceability are mandatory.
Availability
SM15T10CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface circuits, and consumer high-speed data port protection requiring stable component supply and long-term production continuity.
Supply support for SM15T10CA-E3/9AT 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and power MOSFETs with emphasis on reliability, ruggedness, and automotive-grade qualification.
The SM15T Series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications where failure modes must be predictable and performance stable over temperature and lifetime.
FAQ
What is the clamping voltage of SM15T10CA-E3/9AT at its rated peak pulse current?
The SM15T10CA-E3/9AT has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 87.2 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T10CA-E3/9AT maintains this clamping performance across its full operating temperature range of −65 °C to +150 °C.
Is SM15T10CA-E3/9AT suitable for automotive applications?
The SM15T10CA-E3/9AT itself is RoHS-compliant and commercial-grade (E3 suffix), but Vishay offers AEC-Q101 qualified versions under the HE3 and HM3 suffixes (e.g., SM15T10CAHE3_A/I). While SM15T10CA-E3/9AT shares identical electrical and thermal specs, formal automotive qualification requires the HE3/HM3 variants. For non-qualified use in automotive prototypes or non-safety-critical subsystems, the SM15T10CA-E3/9AT remains technically viable.
How does the bidirectional design of SM15T10CA-E3/9AT affect PCB layout?
The SM15T10CA-E3/9AT has no polarity marking and functions identically in both directions, eliminating orientation concerns during automated placement. PCB layout requires symmetric 8.0 mm × 8.0 mm copper pads per terminal per Vishay's recommended mounting pad layout (Document 88380, page 4), with no need for cathode/anode routing distinction. This simplifies layout, reduces assembly errors, and supports balanced common-mode transient suppression on differential or floating lines.
What is the thermal resistance of SM15T10CA-E3/9AT, and how does it impact power dissipation?
The SM15T10CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. At its rated steady-state power dissipation of 6.5 W, this yields a theoretical junction temperature rise of 488 °C above ambient - which exceeds its 150 °C maximum rating. Therefore, the SM15T10CA-E3/9AT is intended exclusively for transient (non-repetitive) operation; continuous power must remain well below 1 W to avoid thermal runaway.
Does SM15T10CA-E3/9AT meet industry surge immunity standards?
Yes - the 1500 W peak pulse power rating of SM15T10CA-E3/9AT with the 10/1000 μs waveform aligns with IEC 61000-4-5 Level 4 surge testing (4 kV line-to-earth, 2 kV line-to-line). When applied with appropriate series impedance (e.g., 2 Ω source), the SM15T10CA-E3/9AT clamps transients to ≤17 V, enabling protected circuits to pass immunity validation. Its low inductance and fast response further support compliance in high-speed interface protection scenarios.
SM15T10CA-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T10CA-E3/9AT FAQ
1.How can I place an order for SM15T10CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10CA-E3/9AT 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 SM15T10CA-E3/9AT reliable?
The price and inventory of SM15T10CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T10CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10CA-E3/9AT?
SM15T10CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10CA-E3/9AT 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 SM15T10CA-E3/9AT?
For technical support, including SM15T10CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10CA-E3/9AT requirements.
6.How does Aetrix verify that SM15T10CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T10CA-E3/9AT 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 SM15T10CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T10CA-E3/9AT?
All SM15T10CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10CA-E3/9AT, 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 SM15T10CA-E3/9AT part is unused and in its original packaging.
Return procedure for SM15T10CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10CA-E3/9AT Tags
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