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Vishay General Semiconductor - Diodes Division 1.5SMC10CA-M3/9AT
- Part No.:
- 1.5SMC10CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC10CA-M3/9AT.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,347
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Product details
Overview
1.5SMC10CA-M3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 µs), 10 V standoff voltage (VWM), and 14.5 V clamping voltage (VC) at 103 A peak pulse current. It protects signal lines and power rails in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the 1.5SMC10CA-M3/9AT datasheet, 1.5SMC10CA-M3/9AT pinout, 1.5SMC10CA-M3/9AT application, or 1.5SMC10CA-M3/9AT equivalent, key selection criteria include bidirectional clamping behavior, 10 V reverse standoff rating, 14.5 V max clamping under 103 A surge, MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per Vishay's M3 suffix.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown in both directions due to its bidirectional CA construction. It exhibits 10.5 V minimum breakdown voltage (VBR) at 1 mA test current and 14.5 V maximum clamping voltage (VC) under 103 A IPPM - critical for limiting induced transients on bidirectional data or supply lines.
Thermally, it features 75 °C/W junction-to-ambient thermal resistance (RθJA) and supports continuous operation up to +150 °C junction temperature. Its glass-passivated junction ensures stable leakage (<10 µA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 10 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for protected circuitry. |
| VBR (Breakdown) | 10.5–11.6 V at 1 mA - Voltage at which device enters avalanche breakdown; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 14.5 V at 103 A - Maximum voltage seen by downstream circuit during 10/1000 µs surge; determines protection level for ICs and MOSFETs. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 µs waveform; enables robust protection against lightning and load dump transients. |
| ID (Leakage) | <10 µA at 10 V - Low reverse leakage preserves signal integrity and minimizes standby power loss in sensitive analog or low-power circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports reliable operation in under-hood automotive and industrial environments. |
| Package | SMC (DO-214AB) - Surface-mount package with 8.0 mm × 8.0 mm copper pad layout requirement; optimized for automated placement and thermal dissipation. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), halogen-free and RoHS-compliant per M3 suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No polarity marking; symmetric terminals enable identical clamping in either direction - essential for AC-coupled or differential signal line protection. |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | Identical electrical role to Anode in bidirectional devices; terminals are interchangeable - simplifies PCB layout and eliminates orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns. |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges in automotive ECUs. |
| Low clamping ratio (VC/VWM = 1.45) | Minimizes voltage overshoot during surge events - critical for safeguarding 3.3 V or 5 V logic interfaces and low-voltage sensors. |
| MSL Level 1 rating | Allows standard SMT reflow without baking; reduces manufacturing complexity and avoids moisture-related popcorning failures. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for global industrial and automotive supply chains without compromising surge performance. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus Protection |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor outputs (e.g., pressure, temperature) from battery load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed across signal/power pins to clamp transients before they reach sensitive analog front-ends or communication ICs. Use Value: Limits induced voltage to ≤14.5 V during 103 A surges, preventing latch-up or permanent damage to 5 V-rated sensor signal conditioning circuitry. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs exposed to ground loop surges and cable discharge events. IC Role / Device Role / Timing Role: Symmetrical clamping device connected between A/B differential lines and ground to suppress common-mode and differential-mode transients. Use Value: Maintains bus integrity under IEC 61000-4-4 EFT (4 kV) and IEC 61000-4-5 surge (2 kV) testing without signal distortion or data corruption. |
| Consumer USB Port Protection | DC Power Input Surge Suppression |
Use Scenario: Shielding USB 2.0 D+/D− lines in smart home hubs from human-body-model ESD (±8 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector to shunt fast transients before reaching USB PHY IC. Use Value: Sub-10 µA leakage at 10 V preserves signal rise/fall times; 14.5 V clamping prevents USB PHY overvoltage beyond absolute maximum ratings. |
Use Scenario: Protecting 12 V DC input rails in network switches and PoE injectors from lightning-induced surges entering via Ethernet cables or external power adapters. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge to absorb bulk surge energy before it propagates into DC-DC converters and LDOs. Use Value: 1500 W peak power rating handles 10/1000 µs surges up to 103 A, reducing need for cascaded protection stages and lowering BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower peak pulse power (600 W), same VWM (10 V), larger SMB package (DO-214AA), higher RθJA (110 °C/W) | Less suitable for high-energy automotive load dump; better for space-constrained consumer ports where 600 W suffices | Select when lower surge immunity is acceptable and board area is tighter than thermal budget allows |
| 1.5KE10CA | Through-hole TO-218 package, same 1500 W rating but slower response (>5 ns), higher clamping (15.6 V), no MSL rating | Not suitable for automated SMT assembly; used in legacy industrial power supplies where reflow compatibility is irrelevant | Choose only for manual assembly or retrofits where SMT is unavailable and lead time for SMC variants is prohibitive |
Compared with 1.5SMC10CA-M3/9AT, SMBJ10CA offers smaller footprint but reduced surge capacity and thermal performance, while 1.5KE10CA provides identical power rating in through-hole form but lacks SMT process support and has looser clamping tolerance - making 1.5SMC10CA-M3/9AT optimal for new automotive and industrial SMT designs requiring AEC-Q101-aligned reliability and halogen-free compliance.
Availability
1.5SMC10CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, and consumer USB interface protection requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for 1.5SMC10CA-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, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power, surface-mount transient suppression for automotive, industrial, and telecom systems where compact size, repeatable clamping, and AEC-Q101 qualification are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC10CA-M3/9AT under maximum rated surge current?
The 1.5SMC10CA-M3/9AT has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current (IPPM) of 103 A using a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay Document 88303 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The 1.5SMC10CA-M3/9AT maintains this clamping performance across its specified operating temperature range.
Is the 1.5SMC10CA-M3/9AT suitable for automotive applications requiring AEC-Q101 qualification?
No - the 1.5SMC10CA-M3/9AT uses the M3 suffix, indicating halogen-free RoHS compliance but not AEC-Q101 qualification. For automotive-grade versions, Vishay specifies part numbers with HE3 or HM3 suffixes (e.g., 1.5SMC10CAHE3_A). The 1.5SMC10CA-M3/9AT is rated for commercial temperature range (–65 °C to +150 °C) and meets MSL Level 1, but lacks the extended reliability testing required for AEC-Q101.
What is the reverse leakage current specification for the 1.5SMC10CA-M3/9AT at its standoff voltage?
The 1.5SMC10CA-M3/9AT exhibits a maximum reverse leakage current (ID) of 10 µA when biased at its rated standoff voltage (VWM) of 10 V, measured at TA = 25 °C. This low leakage ensures minimal impact on high-impedance sensor inputs or battery-powered circuits. The 1.5SMC10CA-M3/9AT maintains this specification across its full operating temperature range per Vishay's Electrical Characteristics table.
Does the 1.5SMC10CA-M3/9AT have polarity markings on its package?
No - the 1.5SMC10CA-M3/9AT is a bidirectional TVS diode and carries no cathode band or polarity marking. Its SMC (DO-214AB) package features two electrically symmetric terminals, allowing installation in either orientation. This design eliminates orientation errors during automated placement and simplifies layout for differential or AC-coupled signal paths.
What is the thermal resistance junction-to-ambient for the 1.5SMC10CA-M3/9AT under standard mounting conditions?
The 1.5SMC10CA-M3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal, as defined in Vishay Document 88303. This value assumes standard JEDEC test conditions and is critical for calculating steady-state junction temperature rise under continuous power dissipation - though the device is primarily intended for transient, not continuous, power handling.
1.5SMC10CA-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:
- -
- 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)
1.5SMC10CA-M3/9AT FAQ
1.How can I place an order for 1.5SMC10CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC10CA-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 1.5SMC10CA-M3/9AT reliable?
The price and inventory of 1.5SMC10CA-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 1.5SMC10CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC10CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC10CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC10CA-M3/9AT?
1.5SMC10CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC10CA-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 1.5SMC10CA-M3/9AT?
For technical support, including 1.5SMC10CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC10CA-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC10CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC10CA-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 1.5SMC10CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC10CA-M3/9AT?
All 1.5SMC10CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC10CA-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 1.5SMC10CA-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC10CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC10CA-M3/9AT Tags
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