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Vishay General Semiconductor - Diodes Division SM15T6V8AHM3/I
- Part No.:
- SM15T6V8AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T6V8AHM3/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,999
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Product details
Overview
SM15T6V8AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 10.5 V clamping voltage at 143 A IPPM, and 5.8 V stand-off voltage - used to protect automotive sensor signal lines and MOSFET gate drivers against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T6V8AHM3/I datasheet, SM15T6V8AHM3/I pinout, SM15T6V8AHM3/I application, or SM15T6V8AHM3/I equivalent, key selection criteria include verified clamping performance under 143 A surge, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 75 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
The SM15T6V8AHM3/I employs a glass-passivated silicon junction optimized for low-inductance transient suppression. Its 10/1000 μs waveform response delivers 1500 W peak pulse power while maintaining 10.5 V clamping at 143 A, enabling robust protection of 5 V–6 V logic interfaces without over-clamping.
Designed for surface-mount automated placement, it features MSL Level 1 moisture sensitivity, 260 °C lead-free reflow compatibility, and a failure mode of short-circuit under overstress - critical for fail-safe system design in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy lightning surges without degradation when mounted on 8 mm × 8 mm copper pads |
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - ensures reliable turn-on before damage to downstream 5 V logic or microcontrollers |
| Stand-off Voltage VWM | 5.8 V - blocks normal operating voltage while remaining fully inactive during 5 V rail operation |
| Clamping Voltage VC at IPPM | 10.5 V at 143 A - limits transient voltage to safe levels for 6 V-tolerant IC inputs and gate drivers |
| Maximum Leakage ID at VWM | 1000 μA - negligible standby current draw, preserving battery life in always-on automotive modules |
| Junction Temperature Range | −65 °C to +150 °C - supports under-hood deployment in AEC-Q101 qualified automotive applications |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping |
| Cathode | Protected line connection point | Connected to signal/power line being protected; voltage referenced to anode during clamp event |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 5 V–12 V lines |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Halogen-free, RoHS-compliant | Meets automotive OEM material restrictions and end-of-life recycling requirements without compromising surge capability |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage margin needed for protected ICs, reducing design headroom and cost |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free PCB assembly without pre-baking or special handling |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground, clamping transients within 1 ns response time. Use Value: Prevents latch-up or permanent damage to 5 V-tolerant transceiver inputs while maintaining signal integrity below 10.5 V. |
Use Scenario: Shielding digital input terminals of programmable logic controllers from 24 V DC field wiring surges caused by relay coil de-energization. IC Role / Device Role / Timing Role: Standoff-connected TVS on each input channel, absorbing 1500 W pulses without derating at 85 °C ambient. Use Value: Eliminates need for external series impedance or RC filtering, reducing BOM count and board space. |
| DC-DC Converter Gate Driver Protection | Consumer USB Port ESD/Surge Protection |
Use Scenario: Safeguarding high-side MOSFET gate drivers in automotive buck converters exposed to battery line transients up to ±100 V. IC Role / Device Role / Timing Role: TVS placed between gate driver output and source terminal, limiting gate-source voltage to ≤10.5 V during surge events. Use Value: Prevents gate oxide rupture and unintended FET turn-on, ensuring functional safety compliance (ISO 26262 ASIL-B). |
Use Scenario: Adding secondary surge protection on 5 V USB VBUS lines in smart home hubs subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed upstream of USB power switch, clamping fast-rising transients before they reach load switches. Use Value: Complements primary ESD diodes by handling higher energy (1500 W vs. 100 W), extending system-level surge immunity beyond IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/57T | Lower peak power (400 W), same VBR range, SMA package (smaller footprint, higher RθJA = 110 °C/W) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost and board space are prioritized over automotive qualification and 1500 W surge handling |
| 1.5KE6.8A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 or halogen-free certification | Requires wave soldering; unsuitable for automated SMT lines or under-hood thermal cycling | Choose only for legacy through-hole designs where rework flexibility outweighs production efficiency and automotive compliance |
Compared with SMAJ6.8A-E3/57T and 1.5KE6.8A, SM15T6V8AHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, 1500 W surge rating, and SMC packaging - making it the only option certified for new automotive electronics requiring zero-layout-change migration from legacy TVS solutions.
Availability
SM15T6V8AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC input hardening, and DC-DC gate driver safeguarding requiring stable component supply across extended product lifecycles.
Supply support for SM15T6V8AHM3/I 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 transient protection devices with emphasis on reliability and automotive-grade validation.
The SM15T Series was developed specifically for high-energy transient suppression in harsh-environment applications - targeting AEC-Q101 compliance, 1500 W surge resilience, and seamless integration into automated SMT manufacturing flows.
FAQ
What is the clamping voltage of SM15T6V8AHM3/I at its rated peak pulse current?
The SM15T6V8AHM3/I has a maximum clamping voltage (VC) of 10.5 V at 143 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, and it defines the upper voltage limit imposed on protected circuits during surge events. The SM15T6V8AHM3/I maintains this clamping performance across its qualified operating temperature range.
Is SM15T6V8AHM3/I qualified for automotive applications?
Yes, SM15T6V8AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per the AEC-Q101 standard. The SM15T6V8AHM3/I is intended for under-hood and body-control module applications where reliability under thermal and mechanical stress is mandatory.
What does the "HM3/I" suffix mean in SM15T6V8AHM3/I?
The "HM3" portion denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction; "I" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3500 units. This format ensures compatibility with high-speed pick-and-place equipment and meets automotive OEM traceability requirements. The SM15T6V8AHM3/I is not interchangeable with non-HM3 variants due to differing qualification and material content.
How does SM15T6V8AHM3/I differ from bidirectional TVS diodes like SM15T6V8CA?
SM15T6V8AHM3/I is unidirectional and features a cathode band marking; it conducts only in reverse bias and blocks forward current. In contrast, SM15T6V8CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The SM15T6V8AHM3/I is selected for DC-coupled lines (e.g., 5 V power rails or gate drivers), whereas SM15T6V8CA suits AC-coupled or differential signal paths like RS-485 or CAN bus.
What is the thermal resistance of SM15T6V8AHM3/I, and how does it affect layout?
The SM15T6V8AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pad per terminal. To maintain safe junction temperatures under continuous power dissipation (PD = 6.5 W), PCB layout must allocate sufficient copper area and avoid thermal isolation. Reducing pad size increases RθJA, risking thermal runaway during repeated surge events - a key consideration in the SM15T6V8AHM3/I's thermal design.
SM15T6V8AHM3/I 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- 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)
SM15T6V8AHM3/I FAQ
1.How can I place an order for SM15T6V8AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T6V8AHM3/I 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 SM15T6V8AHM3/I reliable?
The price and inventory of SM15T6V8AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T6V8AHM3/I is usually 5 days.
3.What payment methods are accepted for SM15T6V8AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T6V8AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T6V8AHM3/I?
SM15T6V8AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T6V8AHM3/I 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 SM15T6V8AHM3/I?
For technical support, including SM15T6V8AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T6V8AHM3/I requirements.
6.How does Aetrix verify that SM15T6V8AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T6V8AHM3/I 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 SM15T6V8AHM3/I meets industry standards.
7.What is the process for return or replacement of SM15T6V8AHM3/I?
All SM15T6V8AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T6V8AHM3/I, 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 SM15T6V8AHM3/I part is unused and in its original packaging.
Return procedure for SM15T6V8AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T6V8AHM3/I Tags
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