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Vishay General Semiconductor - Diodes Division SM15T10CAHM3/H
- Part No.:
- SM15T10CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10CAHM3/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,845
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Product details
Overview
SM15T10CAHM3/H 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 stand-off voltage (VWM), and 14.5 V maximum clamping voltage (VC) at 103 A IPPM. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T10CAHM3/H datasheet, SM15T10CAHM3/H pinout, SM15T10CAHM3/H application, or SM15T10CAHM3/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, and verified 10/1000 μs waveform performance under 8.0 mm × 8.0 mm copper pad mounting conditions.
Technical Context
This TVS operates symmetrically in both directions due to its CA-suffix bidirectional construction, with breakdown voltage VBR min/max of 9.5 V / 10.5 V at 1.0 mA test current and reverse leakage ≤10 μA at 8.55 V. Its low clamping ratio (VC/VWM = 1.45) ensures tight overvoltage protection during fast transients.
Thermal design relies on RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), supporting operation from −65 °C to +150 °C junction temperature. The device fails short-circuit under overstress, aligning with IEC 61000-4-5 surge immunity requirements for industrial and automotive end equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe working range for protected circuit. |
| VBR (min/max) | 9.5 V / 10.5 V at 1.0 mA - Confirmed breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 14.5 V at 103 A (10/1000 μs) - Clamped voltage seen by downstream ICs during worst-case surge; limits stress on MOSFETs or microcontrollers. |
| PPPM | 1500 W - Peak pulse power handling capability per IEC 61000-4-5 Level 4 (4 kV line-to-line); supports robust system-level ESD/surge immunity. |
| TJ max | +150 °C - Enables reliable operation in under-hood automotive environments and high-temperature industrial enclosures. |
| Package | SMC (DO-214AB) - Surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
SM15T10CAHM3/H uses a two-terminal SMC (DO-214AB) package with no polarity marking-consistent with bidirectional functionality. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (symmetrical) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity enables flexible PCB layout. |
| Terminal 2 | Anode/Cathode (symmetrical) | Identical role to Terminal 1; bidirectional conduction eliminates need for orientation-aware placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without external polarity management. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC standard. |
| Halogen-free & RoHS-compliant | Meets global environmental regulations and supports lead-free reflow profiles up to 260 °C peak (MSL Level 1). |
| Low clamping voltage (14.5 V) | Minimizes voltage overshoot across protected ICs during 103 A surges, reducing risk of latch-up or gate oxide damage. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under 103 A 10/1000 μs transients while meeting AEC-Q101 qualification for under-hood deployment. | Use Scenario: Safeguarding PLC digital input modules and RS-485 transceivers against induced lightning surges on field wiring in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on unshielded 24 V DC inputs, coordinated with upstream PTCs and downstream filtering capacitors. Use Value: Limits clamped voltage to 14.5 V during 1500 W surges, preventing damage to 16 V-rated interface ICs and enabling compliance with IEC 61000-4-5 Level 4. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side transient suppression on 12 V DC outputs of wall adapters exposed to mains-borne noise and accidental short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-response clamp parallel to output capacitor, activated within nanoseconds to limit voltage excursion during fault conditions. Use Value: Delivers 1500 W surge handling in compact SMC package, eliminating need for larger DO-15 or axial devices in space-constrained designs. | Use Scenario: Protecting Ethernet PHYs and PoE controllers on telecom line cards from ESD and induced surges on RJ-45 ports. IC Role / Device Role / Timing Role: Bidirectional TVS on differential pairs (e.g., TX+/TX−), providing symmetrical clamping without skew or impedance discontinuity. Use Value: Achieves <15 V clamping at 103 A with low capacitance (<100 pF typical), preserving signal integrity up to 100 Mbps Ethernet speeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | 600 W PPPM rating, same VWM/VC, SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy threats (IEC 61000-4-2 ESD only); not suitable for lightning-level surges | Select when board space is critical and surge threat level is ≤1 kV line-to-line. |
| SMCJ10CA | 1500 W PPPM, identical VWM/VC, same SMC package but non-AEC-Q101 commercial grade (M3/E3 suffix) | Lacks automotive qualification; not approved for safety-critical vehicle subsystems | Select for industrial or consumer applications where AEC-Q101 is not mandated. |
Compared with SMAJ10CA and SMCJ10CA, SM15T10CAHM3/H uniquely combines 1500 W surge capability, AEC-Q101 qualification, and halogen-free RoHS compliance in a single SMC package-making it the only option qualified for automotive-grade surge protection where regulatory compliance and high-energy handling are both required.
Availability
SM15T10CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, and telecom line card protection requiring stable component supply and long-term lifecycle support.
Supply support for SM15T10CAHM3/H 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM15T Series is engineered for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where failure modes must be controlled and long-term stability under thermal cycling is essential.
FAQ
What does the "HM3" suffix indicate in SM15T10CAHM3/H?
The HM3 suffix in SM15T10CAHM3/H denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification. This includes validation for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock-ensuring suitability for automotive under-hood applications. The "H" revision code further identifies the specific manufacturing lot revision per Vishay's internal tracking.
Is SM15T10CAHM3/H pin-compatible with other SMC-packaged TVS diodes?
Yes, SM15T10CAHM3/H shares the standard SMC (DO-214AB) footprint and terminal configuration with all Vishay SMC-package TVS diodes, including SMAJ, SMBJ, and SMCJ series. Its bidirectional symmetry means no orientation dependency during placement, simplifying layout reuse across designs using the same pad dimensions (8.0 mm × 8.0 mm copper pads recommended).
What is the maximum clamping voltage of SM15T10CAHM3/H under a 10/1000 μs surge?
The maximum clamping voltage of SM15T10CAHM3/H is 14.5 V when subjected to its rated peak pulse current of 103 A with a 10/1000 μs waveform. This value is measured under standardized test conditions (mounted on 8.0 mm × 8.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does SM15T10CAHM3/H meet any international surge immunity standards?
SM15T10CAHM3/H supports compliance with IEC 61000-4-5 (surge immunity) Level 4 (4 kV line-to-line) when applied per Vishay's recommended layout and thermal conditions. Its 1500 W peak pulse power rating and 103 A IPPM capability align directly with the energy requirements of this standard for industrial and automotive equipment.
How does the bidirectional nature of SM15T10CAHM3/H affect its use in DC circuits?
SM15T10CAHM3/H functions identically in both polarities, making it ideal for protecting DC circuits subject to reverse-polarity faults or bipolar transients-such as automotive battery lines or RS-485 buses. Unlike unidirectional TVS diodes, it requires no external polarity considerations during layout, and its symmetrical VBR (9.5–10.5 V) ensures consistent clamping regardless of surge direction relative to the DC rail.
SM15T10CAHM3/H 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SM15T10CAHM3/H FAQ
1.How can I place an order for SM15T10CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10CAHM3/H 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 SM15T10CAHM3/H reliable?
The price and inventory of SM15T10CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10CAHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T10CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10CAHM3/H?
SM15T10CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10CAHM3/H 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 SM15T10CAHM3/H?
For technical support, including SM15T10CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10CAHM3/H requirements.
6.How does Aetrix verify that SM15T10CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T10CAHM3/H 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 SM15T10CAHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T10CAHM3/H?
All SM15T10CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10CAHM3/H, 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 SM15T10CAHM3/H part is unused and in its original packaging.
Return procedure for SM15T10CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T10CAHM3/H Tags
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