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Vishay General Semiconductor - Diodes Division 1.5SMC10A-M3/9AT
- Part No.:
- 1.5SMC10A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10A-M3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,124
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Product details
Overview
1.5SMC10A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - ideal for protecting MOSFETs, ICs, and sensor signal lines against lightning-induced transients and inductive switching surges in automotive and industrial systems.
For engineers reviewing the 1.5SMC10A-M3/9AT datasheet, 1.5SMC10A-M3/9AT pinout, 1.5SMC10A-M3/9AT application, or 1.5SMC10A-M3/9AT equivalent, this part delivers verified unidirectional clamping performance, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity rating, and AEC-Q101 qualification readiness - critical for high-reliability board-level surge protection design and BOM continuity planning.
Technical Context
The 1.5SMC10A-M3/9AT operates as a silicon avalanche diode with glass-passivated junction, enabling fast response time (<1 ns) and low incremental surge resistance to limit transient overvoltages before downstream components are stressed. Its unidirectional polarity uses a cathode band marking and exhibits 9.5–10.5 V breakdown voltage (VBR) at 1 mA test current, with 8.55 V maximum reverse standoff voltage (VWM) and only 10 µA maximum reverse leakage at that voltage.
Thermally, it supports operation from –65 °C to +150 °C junction temperature, with 75 °C/W junction-to-ambient thermal resistance on standard 8.0 mm × 8.0 mm copper pads and 15 °C/W junction-to-lead resistance. Derating curves confirm stable 1500 W pulse handling up to 125 °C ambient, making it suitable for compact, thermally constrained PCB layouts in power supply inputs and interface ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 8.55 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (Breakdown) | 9.5–10.5 V at 1 mA - Confirmed avalanche onset threshold; ensures predictable turn-on during transients. |
| VC (Clamping) | 14.5 V at 103 A (10/1000 µs) - Peak voltage seen by protected circuit under worst-case surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power dissipation capacity; enables suppression of high-energy transients without failure. |
| IPPM | 103 A - Maximum non-repetitive surge current the device safely clamps; determines minimum trace width and layout margin. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or industrial enclosures. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events (e.g., ESD). |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., USB_VBUS, CAN_H); avalanches into conduction when reverse voltage exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables reliable suppression of IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation in standard PCB layouts. |
| Glass-passivated junction | Ensures long-term stability and low leakage (<10 µA at VWM) across temperature and humidity variations. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak without baking - simplifies manufacturing flow. |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising surge robustness. |
| AEC-Q101 qualification ready | Base P/NHM3_X variants are qualified; this M3-grade part shares identical die and construction, supporting accelerated qualification paths. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery rail in engine control units exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and local LDO/regulator input to clamp transients before they reach voltage regulators and microcontrollers. Use Value: Clamps 103 A surges to ≤14.5 V, preventing regulator latch-up or gate oxide damage in downstream PMICs and MCUs. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loop or 0–5 V sensor outputs) in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to shunt induced surges from nearby motor drives or relay switching. Use Value: Sub-1 ns response limits voltage overshoot to <15 V, preserving ADC reference integrity and op-amp input stage reliability. |
| Consumer USB Port ESD Protection | Telecom Ethernet PHY Interface Protection |
Use Scenario: VBUS line in USB 2.0 Type-A receptacles subjected to ±15 kV contact ESD (IEC 61000-4-2). IC Role / Device Role / Timing Role: Primary clamping device in series with fuse or polyfuse, positioned upstream of USB switch or controller. Use Value: Low VC (14.5 V) prevents VBUS droop below 4.75 V during ESD event, maintaining enumeration and data link stability. |
Use Scenario: RJ45 magnetics secondary side (TX+/RX+ pairs) in PoE-powered network switches vulnerable to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential pair, referenced to local ground plane to suppress asymmetrical transients. Use Value: 1500 W rating handles multi-kV surges while maintaining <0.5 pF junction capacitance (typ.) to avoid signal integrity degradation at 100 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same SMC package, but lower 400 W peak power (vs. 1500 W); VC = 16.7 V at 24.2 A. | Not suitable for IEC 61000-4-5 Level 3+ or automotive load dump; limited to low-energy ESD and coupling transients. | Select SMAJ10A only for cost-sensitive consumer applications where surge energy is strictly bounded and layout allows tighter thermal management. |
| 1.5KE10A | Through-hole DO-201 package; same 1500 W rating and VC = 14.5 V, but larger footprint and incompatible with SMT-only assembly. | Requires manual or wave-soldering; unsuitable for high-density or double-sided SMT boards. | Choose 1.5KE10A only when legacy through-hole design or higher mechanical robustness (e.g., vibration-prone environments) outweighs SMT efficiency. |
Compared with SMAJ10A and 1.5KE10A, the 1.5SMC10A-M3/9AT uniquely combines high-energy 1500 W clamping, SMC surface-mount compatibility, halogen-free compliance, and AEC-Q101-ready construction - making it the optimal choice for new automotive, industrial, and telecom designs requiring production scalability and regulatory alignment.
Availability
1.5SMC10A-M3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, USB VBUS surge suppression, and telecom Ethernet PHY protection requiring stable component supply across extended product lifecycles.
Supply support for 1.5SMC10A-M3/9AT 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 optoelectronics with emphasis on reliability, power handling, and automotive-grade qualification.
The 1.5SMC Series was engineered specifically for high-power, surface-mount transient suppression in space-constrained environments - targeting automotive infotainment, ADAS power domains, industrial PLCs, and telecom infrastructure where robustness and manufacturability are co-prioritized.
FAQ
What is the clamping voltage of the 1.5SMC10A-M3/9AT under a 10/1000 µs surge?
The 1.5SMC10A-M3/9AT has a maximum clamping voltage (VC) of 14.5 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 103 A. This value is measured per JEDEC standards and guarantees the protected circuit sees no more than 14.5 V during such transient events - critical for safeguarding 12 V-rated ICs and regulators. The 1.5SMC10A-M3/9AT maintains this clamping performance across its full operating temperature range.
Is the 1.5SMC10A-M3/9AT AEC-Q101 qualified?
The 1.5SMC10A-M3/9AT carries the M3 suffix, indicating halogen-free and RoHS-compliant construction, and shares the same die and packaging process as AEC-Q101-qualified variants (e.g., 1.5SMC10AHM3_A). While the exact 1.5SMC10A-M3/9AT part number is not individually listed in Vishay's AEC-Q101 certificate, its HM3-grade siblings are qualified, and the 1.5SMC10A-M3/9AT is explicitly designated as "AEC-Q101 qualified available" in the datasheet revision notes.
What does the "/9AT" suffix indicate in 1.5SMC10A-M3/9AT?
The "/9AT" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel, with 3500 units per reel. This format supports high-volume automated assembly and is optimized for SMT placement equipment with standard 13" reel feeders. The "M3" prefix confirms halogen-free, RoHS-compliant materials, while "10A" specifies the 10 V standoff voltage grade. The 1.5SMC10A-M3/9AT thus combines environmental compliance, production scalability, and precise electrical grading.
Can the 1.5SMC10A-M3/9AT be used in bidirectional applications?
No - the 1.5SMC10A-M3/9AT is a unidirectional TVS diode, identified by its cathode band marking and specified electrical characteristics for reverse-biased operation only. For bidirectional protection, Vishay offers the 1.5SMC10CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities. Using the 1.5SMC10A-M3/9AT in bidirectional circuits risks forward conduction damage during negative transients, as it lacks reverse breakdown symmetry.
What is the thermal resistance of the 1.5SMC10A-M3/9AT, and how does it affect layout?
The 1.5SMC10A-M3/9AT 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 - a standard reference layout defined in the datasheet. This value means each watt of sustained power raises the junction temperature by 75 °C above ambient. For reliable operation under repetitive surges, designers must ensure adequate copper area and minimize trace length to maintain thermal performance; the 1.5SMC10A-M3/9AT's RθJL of 15 °C/W further emphasizes the importance of solid thermal connection to PCB planes.
1.5SMC10A-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC10A-M3/9AT FAQ
1.How can I place an order for 1.5SMC10A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10A-M3/9AT 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 1.5SMC10A-M3/9AT reliable?
The price and inventory of 1.5SMC10A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC10A-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC10A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10A-M3/9AT?
1.5SMC10A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10A-M3/9AT 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 1.5SMC10A-M3/9AT?
For technical support, including 1.5SMC10A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10A-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC10A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10A-M3/9AT 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 1.5SMC10A-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC10A-M3/9AT?
All 1.5SMC10A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10A-M3/9AT, 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 1.5SMC10A-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC10A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10A-M3/9AT Tags
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