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Vishay General Semiconductor - Diodes Division SM15T200AHM3/H
- Part No.:
- SM15T200AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200AHM3/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
SM15T200AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 274 V clamping voltage at 5.5 A IPPM, and 171 V stand-off voltage. It protects automotive-grade power rails and I/O lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the SM15T200AHM3/H datasheet, SM15T200AHM3/H pinout, SM15T200AHM3/H application, or SM15T200AHM3/H equivalent, key selection criteria include clamping voltage margin vs. system rail, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior under repetitive surge stress. Its 10/1000 μs waveform rating targets high-energy threats like lightning-induced transients on external interfaces.
Designed for automotive-grade reliability, SM15T200AHM3/H meets AEC-Q101 qualification, features MSL Level 1 moisture sensitivity, and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Thermal performance is specified with 0.31" × 0.31" copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets upper limit for protected circuit rail |
| VBR min/max | 190 V / 210 V at 1.0 mA IT - verified breakdown range ensures predictable turn-on during overvoltage events |
| VC @ IPPM | 274 V at 5.5 A (10/1000 μs) - clamping voltage defines worst-case voltage seen by downstream ICs during surge |
| PPPM | 1500 W - peak pulse power handling capacity for standardized lightning-surge waveform |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance measured on recommended 8.0 mm × 8.0 mm copper pads |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - surface-mount outline with 7.75 mm × 6.22 mm body and 2.62 mm height for automated placement |
Pinout & Package
SM15T200AHM3/H uses the standard SMC (DO-214AB) package with two terminals: anode and cathode. The cathode is marked by a band on the body end. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for thermal and surge-current performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line's low-side reference | Completes clamping path when transient exceeds VBR; must be routed with low-inductance trace to ground plane |
| Cathode | Current exit point in forward bias; marked by band; connected to system ground or return path | Provides defined polarity for unidirectional clamping; critical for correct orientation during PCB assembly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental requirements and enables compliance with ELV Directive and JIG-101 |
| 1500 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) without degradation when properly mounted |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected MOSFETs or microcontrollers during fast transients |
| MSL Level 1, 260 °C reflow compatible | Supports single-pass lead-free reflow without preconditioning or baking |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 24 V battery-supplied ECUs from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges above 171 V. Use Value: Prevents latch-up or gate oxide damage in downstream DC-DC controllers and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding PLC digital input modules connected to 24 V industrial sensors exposed to relay-coil switching noise. IC Role / Device Role / Timing Role: Standoff-clamp protection on discrete input lines, absorbing 10/1000 μs surges up to 1500 W. Use Value: Maintains signal integrity and prevents false triggering in optocoupled inputs during high-di/dt inductive switching. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Input |
Use Scenario: Shielding Ethernet PHY power pins and auxiliary bias rails in outdoor telecom equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on 3.3 V/5 V auxiliary rails, coordinated with upstream GDT or MOV stages. Use Value: Limits clamped voltage to 274 V while passing >5 A surge current, preserving isolation barrier integrity. |
Use Scenario: Adding secondary-side surge immunity to AC-DC adapter outputs powering smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Final-stage clamping device on regulated 12 V output rail, positioned before LDO regulators. Use Value: Absorbs conducted EFT bursts (IEC 61000-4-4) without derating adjacent capacitors or causing regulator shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200AHE3/A | Same VWM (171 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load-dump | Select only for space-constrained consumer designs where surge threat level is below 1 kV |
| SMCJ200A-M3/86A | Identical electrical specs (VWM, VBR, VC, PPPM), same SMC package, but commercial-grade (non-AEC-Q101), M3 halogen-free | Not qualified for automotive use; acceptable for industrial controls with internal surge testing | Choose when AEC-Q101 is not required and cost optimization is prioritized over automotive qualification |
Compared with SMAJ200AHE3/A and SMCJ200A-M3/86A, SM15T200AHM3/H uniquely delivers AEC-Q101 qualification, 1500 W surge capability in SMC form factor, and halogen-free compliance-making it the only option validated for under-hood automotive deployment with full lightning-surge immunity.
Availability
SM15T200AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, telecom infrastructure, and consumer appliance power systems requiring stable component supply with long-term lifecycle assurance.
Supply support for SM15T200AHM3/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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SM15T Series was developed to deliver high-power transient suppression in compact SMC packages for automotive and industrial systems where AEC-Q101 qualification, halogen-free compliance, and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of SM15T200AHM3/H at its rated peak pulse current?
The SM15T200AHM3/H has a maximum clamping voltage (VC) of 274 V when subjected to its rated peak pulse current of 5.5 A using the 10/1000 μs waveform. This value is measured under standardized test conditions with 0.31" × 0.31" copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T200AHM3/H maintains this clamping performance across its qualified operating temperature range.
Is SM15T200AHM3/H qualified for automotive applications?
Yes, SM15T200AHM3/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official datasheet (Document Number: 88380). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. The SM15T200AHM3/H is intended for use in automotive subsystems such as body control modules, infotainment power supplies, and ADAS sensor interfaces where robust transient immunity is required.
What does the "HM3" suffix indicate in SM15T200AHM3/H?
The "HM3" suffix in SM15T200AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., "M3") and non-halogen-free qualified variants (e.g., "HE3"). The "H" indicates AEC-Q101 qualification, "M3" specifies halogen-free and RoHS compliance, and "/H" denotes the revision code. This full suffix confirms that SM15T200AHM3/H meets automotive environmental and reliability standards.
Can SM15T200AHM3/H be used in bidirectional configurations?
No, SM15T200AHM3/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional variants in the SM15T series use the "CA" suffix (e.g., SM15T200CA). Using SM15T200AHM3/H in a bidirectional application would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. For bidirectional protection, select the appropriate CA-suffixed part.
What is the thermal resistance of SM15T200AHM3/H, and how is it measured?
The SM15T200AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, measured with the device mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal on a standard FR-4 PCB. This value assumes natural convection cooling and defines the temperature rise per watt of steady-state power dissipation. It is not applicable to transient surge conditions but informs derating for continuous reverse leakage or power dissipation in high-temperature ambient environments.
SM15T200AHM3/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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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)
SM15T200AHM3/H FAQ
1.How can I place an order for SM15T200AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200AHM3/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 SM15T200AHM3/H reliable?
The price and inventory of SM15T200AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200AHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T200AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200AHM3/H?
SM15T200AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200AHM3/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 SM15T200AHM3/H?
For technical support, including SM15T200AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200AHM3/H requirements.
6.How does Aetrix verify that SM15T200AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T200AHM3/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 SM15T200AHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T200AHM3/H?
All SM15T200AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200AHM3/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 SM15T200AHM3/H part is unused and in its original packaging.
Return procedure for SM15T200AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200AHM3/H Tags
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