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Vishay General Semiconductor - Diodes Division SM15T7V5CAHM3/H
- Part No.:
- SM15T7V5CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5CAHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,226
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Product details
Overview
SM15T7V5CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on signal and power lines. It features 7.13 V minimum breakdown voltage (VBR), 6.4 V standoff voltage (VWM), 11.3 V clamping voltage at 132 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 μs). It is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive electronics.
For engineers reviewing the SM15T7V5CAHM3/H datasheet, SM15T7V5CAHM3/H pinout, SM15T7V5CAHM3/H application, or SM15T7V5CAHM3/H equivalent, this page delivers verified electrical parameters, validated package dimensions, confirmed AEC-Q101 qualification status, and real-world clamping performance data under standardized 10/1000 μs transients - critical for I/O line hardening in automotive ECUs and industrial sensor interfaces.
Technical Context
The SM15T7V5CAHM3/H operates as a bidirectional clamping device with symmetrical avalanche behavior in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low leakage (<500 μA at 6.4 V), while low-inductance SMC packaging supports fast response to sub-microsecond transients.
Thermal design is governed by RθJA = 75 °C/W and RθJL = 15 °C/W, requiring minimum 8.0 mm × 8.0 mm copper pads per terminal for rated 1500 W pulse handling. The device fails short-circuit under overstress, aligning with fail-safe system architectures in automotive and industrial control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.4 V - Maximum continuous reverse operating voltage before leakage exceeds 500 μA; defines safe DC bias margin for protected lines. |
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - Confirmed breakdown threshold range ensuring reliable triggering across temperature and unit variation. |
| VC @ IPPM | 11.3 V at 132 A (10/1000 μs) - Clamped voltage during worst-case lightning-induced surge; determines maximum stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power rating with 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 4 (4 kV) threat environments. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive locations with ambient up to +125 °C. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm body and 2.62 mm lead spacing; compatible with automated pick-and-place. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification; suffix HM3/H confirms qualification. |
Pinout & Package
SM15T7V5CAHM3/H uses the SMC (DO-214AB) package: a surface-mount, bidirectional two-terminal device with no polarity marking. Terminals are matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, meeting JESD 201 Class 2 whisker resistance. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for full 1500 W rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode (bidirectional) | One end of symmetrical avalanche junction; connects to line under protection (e.g., CAN_H or LIN bus). |
| Terminal 2 | Cathode (bidirectional) | Other end of symmetrical avalanche junction; connects to reference plane (e.g., chassis ground or signal return). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 1500 W clamping | Enables single-device protection of AC, differential, or floating signal lines (e.g., RS-485, CAN, LIN) without external polarity management. |
| AEC-Q101 qualified (HM3/H) | Validated for automotive powertrain, body control, and ADAS modules where field failure risk must be minimized per ISO/TS 16949 requirements. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports sustainability compliance for Tier 1 OEM BOMs. |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage exposure to protected ICs - e.g., clamps 11.3 V at 132 A while maintaining 7.13 V nominal breakdown. |
| MSL Level 1 (260 °C peak) | Allows standard reflow soldering without moisture sensitivity concerns; eliminates bake-out requirement in production assembly. |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in engine control units against load dump and ESD events per ISO 16750-2 and ISO 10605. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed directly at connector interface to limit transient voltage before transceiver input pins. Use Value: Clamps to 11.3 V during 132 A surge, keeping transceiver inputs within absolute maximum ratings and preventing communication lockup or latch-up. |
Use Scenario: Shielding 4–20 mA analog output lines from inductive switching transients in PLC I/O modules. IC Role / Device Role / Timing Role: Parallel-connected TVS across signal and return lines to shunt energy before reaching precision DAC or op-amp output stage. Use Value: 6.4 V standoff allows normal 24 V loop operation; 1500 W rating handles 100 mJ coil-switching spikes without degradation over 100,000 cycles. |
| Telecom DSL Line Interface | Consumer Appliance Motor Control Board |
Use Scenario: Safeguarding ADSL/VDSL line drivers and receivers from lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Primary-level TVS mounted at RJ-11 jack entry point, upstream of hybrid transformer and line driver IC. Use Value: Symmetrical 7.13 V breakdown ensures equal clamping on tip/ring; low capacitance (<100 pF) avoids signal integrity loss at 30 MHz DSL bandwidth. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers from back-EMF spikes generated by brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Local TVS placed across motor terminals and near MCU I/O pins to suppress <100 ns rise-time transients. Use Value: 11.3 V clamping prevents MCU reset or flash corruption; AEC-Q101 qualification ensures reliability despite thermal cycling in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | 600 W rating (vs. 1500 W); SMA package (smaller footprint, higher RθJA = 110 °C/W); VC = 12.0 V @ 49.2 A. | Lower power handling limits use to sub-IEC 61000-4-5 Level 3 threats; unsuitable for direct motor or long-line protection. | Select when board space is constrained and surge threat is limited to ESD or low-energy switching noise. |
| 1.5KE7.5CA | Through-hole DO-201 package; same 1500 W rating but larger size and manual assembly requirement; VC = 12.0 V @ 125 A. | Not suitable for automated SMT lines; incompatible with high-density automotive PCB layouts. | Select only for legacy through-hole designs or prototyping where rework tolerance outweighs production efficiency. |
Compared with SMAJ7.5CA and 1.5KE7.5CA, SM15T7V5CAHM3/H uniquely combines AEC-Q101 qualification, SMC surface-mount compatibility, and full 1500 W capability - making it the only option among the three qualified for volume automotive SMT production with IEC 61000-4-5 Level 4 compliance.
Availability
SM15T7V5CAHM3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom line card designs requiring stable component supply with guaranteed AEC-Q101 compliance and halogen-free material content.
Supply support for SM15T7V5CAHM3/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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The SM15T Series was engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 qualification are mandatory.
FAQ
What is the clamping voltage of SM15T7V5CAHM3/H at its rated peak pulse current?
The SM15T7V5CAHM3/H has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 132 A under the standard 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 SM15T7V5CAHM3/H maintains this clamping performance across its qualified temperature range (-65 °C to +150 °C).
Is SM15T7V5CAHM3/H suitable for automotive applications?
Yes, SM15T7V5CAHM3/H is explicitly AEC-Q101 qualified, as confirmed by its HM3/H suffix and documentation in Vishay's 88380 datasheet. It has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its use in automotive powertrain, body electronics, and ADAS systems. The SM15T7V5CAHM3/H meets ISO 16750-2 pulse requirements for load dump and ISO 10605 for ESD.
How does the bidirectional configuration of SM15T7V5CAHM3/H affect its circuit placement?
The bidirectional nature of SM15T7V5CAHM3/H means it has no polarity marking and functions identically in both directions - ideal for protecting AC-coupled, differential, or floating signal lines like CAN, LIN, or RS-485. Unlike unidirectional TVS diodes, SM15T7V5CAHM3/H can be placed across any two nodes without regard to voltage polarity, simplifying layout and eliminating orientation errors during automated assembly.
What is the thermal resistance profile of SM15T7V5CAHM3/H, and how does it impact PCB layout?
SM15T7V5CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W. To achieve full 1500 W pulse rating, the datasheet mandates mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. Reducing pad area increases thermal impedance and derates peak power - so SM15T7V5CAHM3/H layout must follow Vishay's recommended footprint to avoid thermal runaway during repeated surges.
Does SM15T7V5CAHM3/H meet RoHS and halogen-free compliance standards?
Yes, SM15T7V5CAHM3/H carries the HM3 suffix, indicating it is both RoHS-compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The molding compound meets UL 94 V-0 flammability rating, and terminals are matte tin-plated per J-STD-002. These material attributes are documented in Vishay's 88380 datasheet and certified in manufacturer's declaration of conformity - essential for export to EU, China, and South Korea markets.
SM15T7V5CAHM3/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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 132A
- 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)
SM15T7V5CAHM3/H FAQ
1.How can I place an order for SM15T7V5CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5CAHM3/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 SM15T7V5CAHM3/H reliable?
The price and inventory of SM15T7V5CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5CAHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T7V5CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5CAHM3/H?
SM15T7V5CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5CAHM3/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 SM15T7V5CAHM3/H?
For technical support, including SM15T7V5CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5CAHM3/H requirements.
6.How does Aetrix verify that SM15T7V5CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T7V5CAHM3/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 SM15T7V5CAHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T7V5CAHM3/H?
All SM15T7V5CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5CAHM3/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 SM15T7V5CAHM3/H part is unused and in its original packaging.
Return procedure for SM15T7V5CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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