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Vishay General Semiconductor - Diodes Division SM15T10AHM3_A/H
- Part No.:
- SM15T10AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T10AHM3_A/H.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,952
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Product details
Overview
SM15T10AHM3_A/H from Vishay General Semiconductor is a unidirectional 1500 W Transient Voltage Suppressor in SMC (DO-214AB) package, with 10 V standoff voltage (VWM), 14.5 V clamping voltage (VC) at 103 A peak pulse current (IPPM), and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SM15T10AHM3_A/H datasheet, SM15T10AHM3_A/H pinout, SM15T10AHM3_A/H application, or SM15T10AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 75 °C/W), unidirectional polarity marking, halogen-free RoHS compliance, and automotive-grade reliability validation.
Technical Context
This device operates as a unidirectional TVS diode optimized for high-energy transient suppression on power rails and signal lines. It features glass-passivated junction construction, low inductance, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature.
Clamping behavior is defined by its 14.5 V VC at IPPM = 103 A (10/1000 μs), with breakdown voltage VBR = 9.5–10.5 V at IT = 1.0 mA. Its failure mode under overstress is short-circuit, and it supports operating junction temperatures from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 9.5 V / 10.5 V at 1.0 mA - ensures predictable turn-on threshold across production lot |
| VC @ IPPM | 14.5 V at 103 A (10/1000 μs) - limits downstream voltage stress during lightning or switching surges |
| PPPM | 1500 W - sustains single high-energy transients common in automotive load-dump or inductive switch-off events |
| RθJA | 75 °C/W - defines thermal derating slope when mounted on standard 8 mm × 8 mm copper pads |
| TJ max | +150 °C - enables operation in under-hood automotive environments without thermal shutdown |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts during forward surge |
| Cathode | Reverse-biased clamping node | Marked end; connects to higher-potential rail; conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge events without degradation |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance in humid or condensing environments |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets automotive ELV Directive and IPC-1752A material declaration requirements |
| Low inductance layout | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time) |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without popcorn or delamination risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges within 1 ns response time. Use Value: Limits voltage to ≤14.5 V during 103 A transients, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal lines exposed to field wiring noise. Use Value: Clamps induced surges up to 1500 W without distorting mV-level sensor signals due to minimal leakage (<10 μA at 10 V). |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding PoE-powered equipment inputs from Ethernet cable-induced surges and AC/DC adapter transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input rail upstream of DC-DC converters. Use Value: Absorbs 10/1000 μs surges while maintaining <10 μA reverse leakage at 10 V, preserving standby power budget. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals or H-bridge supply rails. Use Value: Handles repetitive 200 A IFSM surges and clamps transients to 14.5 V, extending MOSFET lifetime in high-cycle applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | 600 W PPPM, SMA package, RθJA = 110 °C/W, no AEC-Q101 qualification | Limited to commercial-grade consumer/industrial use; insufficient for automotive load dump | Select when cost sensitivity outweighs surge margin and automotive qualification requirements |
| SMCJ10A | 1500 W PPPM, same SMC package, but only RoHS-compliant (E3/M3), not halogen-free or AEC-Q101 qualified | Acceptable for industrial control, but lacks automotive traceability and halogen-free compliance | Choose if halogen-free and AEC-Q101 are not mandated, and legacy sourcing is preferred |
Compared with SMAJ10A and SMCJ10A, SM15T10AHM3_A/H delivers identical 1500 W surge capability in the same SMC footprint while adding halogen-free construction and full AEC-Q101 validation-critical for Tier 1 automotive BOMs requiring material and reliability traceability.
Availability
SM15T10AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SM15T10AHM3_A/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices for high-reliability industrial, automotive, and computing applications.
The SM15T Series was developed specifically for robust, high-power transient suppression in automotive power distribution systems and industrial control interfaces where AEC-Q101 validation and halogen-free compliance are mandatory.
FAQ
What is the clamping voltage of SM15T10AHM3_A/H at its rated peak pulse current?
The SM15T10AHM3_A/H has a maximum clamping voltage (VC) of 14.5 V when subjected to its rated peak pulse current (IPPM) of 103 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 SM15T10AHM3_A/H maintains this clamping performance across its qualified temperature range and after multiple surge exposures within specification.
Is SM15T10AHM3_A/H suitable for automotive applications?
Yes, SM15T10AHM3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix and "_A/H" packaging code. It meets stress test requirements including high-temperature operating life, temperature cycling, and ESD robustness. The SM15T10AHM3_A/H is intended for under-hood and body-control module applications where ISO 7637-2 Pulse 5a compliance and halogen-free materials are required.
What does the "HM3" suffix indicate in SM15T10AHM3_A/H?
The "HM3" suffix in SM15T10AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering documentation, HM3 devices meet JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards. The SM15T10AHM3_A/H uses matte tin-plated leads and complies with automotive material declarations per IPC-1752A.
How does SM15T10AHM3_A/H differ from SM15T10A-E3?
SM15T10AHM3_A/H adds halogen-free formulation and AEC-Q101 qualification compared to SM15T10A-E3, which is RoHS-compliant but commercial-grade only. Both share identical electrical specs and SMC package, but SM15T10AHM3_A/H undergoes extended reliability testing and carries automotive traceability. The SM15T10AHM3_A/H also uses different tape-and-reel packaging (H-code, 850-unit reels) versus E3's 57T code.
What is the thermal resistance of SM15T10AHM3_A/H, and how does it affect PCB layout?
The SM15T10AHM3_A/H 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. This value assumes minimum recommended pad layout per Vishay's DO-214AB outline. To maintain safe junction temperature under sustained power dissipation, designers must allocate sufficient copper area and avoid thermal isolation-failure to do so accelerates derating above TA = 25 °C, as shown in Figure 2 of the SM15T10AHM3_A/H datasheet.
SM15T10AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
SM15T10AHM3_A/H FAQ
1.How can I place an order for SM15T10AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T10AHM3_A/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 SM15T10AHM3_A/H reliable?
The price and inventory of SM15T10AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T10AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM15T10AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T10AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T10AHM3_A/H?
SM15T10AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T10AHM3_A/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 SM15T10AHM3_A/H?
For technical support, including SM15T10AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T10AHM3_A/H requirements.
6.How does Aetrix verify that SM15T10AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM15T10AHM3_A/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 SM15T10AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM15T10AHM3_A/H?
All SM15T10AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T10AHM3_A/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 SM15T10AHM3_A/H part is unused and in its original packaging.
Return procedure for SM15T10AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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