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Vishay General Semiconductor - Diodes Division SM15T7V5AHM3/H
- Part No.:
- SM15T7V5AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5AHM3/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,282
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Product details
Overview
SM15T7V5AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, with 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), and 1500 W peak pulse power (10/1000 μs). It clamps transients to 11.3 V at 132 A peak pulse current (IPPM) and is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SM15T7V5AHM3/H datasheet, SM15T7V5AHM3/H pinout, SM15T7V5AHM3/H application, or SM15T7V5AHM3/H equivalent, key selection criteria include verified clamping voltage under 10/1000 μs surge, AEC-Q101 qualification status, unidirectional polarity with cathode band marking, and thermal resistance (RθJA = 75 °C/W) for PCB-level thermal design.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging a glass-passivated silicon junction to achieve low leakage (<500 μA at VWM) and low dynamic impedance. Its 10/1000 μs waveform rating reflects standardized lightning and switching transient immunity per IEC 61000-4-5.
The device is designed for high-source-impedance circuits where peak pulse current remains within its 132 A IPPM limit when mounted on 8.0 mm × 8.0 mm copper pads. Failure mode under overstress is a short circuit, consistent with industrial safety expectations for primary-level transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.13 V - Ensures reliable conduction onset above normal operating voltage of 6.40 V, preventing false triggering. |
| VWM | 6.40 V - Maximum continuous reverse voltage before leakage exceeds 500 μA; defines safe operating margin for 5 V rail protection. |
| VC @ IPPM | 11.3 V - Clamped voltage at 132 A peak pulse; determines maximum stress imposed on downstream ICs like microcontrollers or sensors. |
| PPPM | 1500 W - Peak transient energy handling capability with 10/1000 μs waveform; suitable for lightning-induced surges on automotive I/O lines. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; requires ≥8 mm × 8 mm copper pad area for rated power dissipation at TA = 50 °C. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments without derating below ambient +105 °C. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 3.20 mm min. lead length and 7.75 mm max. body length; compatible with automated pick-and-place. |
Pinout & Package
SM15T7V5AHM3/H uses the SMC (DO-214AB) package: molded plastic case meeting UL 94 V-0, matte tin-plated leads solderable per J-STD-002, and cathode indicated by a band on the body end. Polarity is unidirectional; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or low-side return path; must be routed with low-inductance trace for effective clamping. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., CAN_H, LIN, sensor supply); marked by visible band on package body. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges on automotive power and signal lines without external series impedance. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces under temperature cycling and humidity testing. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets automotive OEM environmental requirements and supports lead-free reflow profiles up to 260 °C peak (MSL level 1). |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes voltage overshoot during transient events, reducing risk of latch-up or gate oxide damage in protected MOSFETs and logic ICs. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients in passenger vehicles. IC Role / Device Role / Timing Role: Primary shunt clamp placed between power rail and chassis ground, responding within <1 ns to suppress spikes exceeding 6.4 V. Use Value: Limits voltage seen by downstream PMICs and MCUs to ≤11.3 V during 132 A surges, preventing brownout resets and permanent damage. | Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Unidirectional TVS connected between sensor VOUT and ground, clamping ESD and inductive kickback from nearby solenoid drivers. Use Value: Maintains signal integrity by holding clamped voltage below ADC input absolute maximum rating while exhibiting <500 μA leakage at 6.4 V. |
| Automotive CAN Bus Protection | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-level protection on CAN_H/CAN_L lines in telematics control units exposed to board-level ESD and cable discharge events. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to ground, activated only during overvoltage excursions beyond bus common-mode range. Use Value: Prevents CAN transceiver latch-up by clamping transients to 11.3 V while maintaining <1 pF junction capacitance at zero bias for minimal signal distortion. | Use Scenario: Input-stage surge suppression in USB-C PD adapters subjected to mains-coupled transients during plug insertion. IC Role / Device Role / Timing Role: First-line defense between AC-DC rectifier output and primary-side controller, absorbing energy from 10/1000 μs surges before they reach switching FETs. Use Value: Absorbs 1500 W pulses without degradation, enabling compliance with UL 1449 Type 4 SPD requirements using a single discrete component. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | Lower peak power (400 W), same VWM (6.4 V), but higher VC (12.4 V at 32.4 A); SMA package (smaller footprint, higher RθJA). | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use with lower surge severity. | Select when cost and board space are critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| 1.5SMC7.5A-H | Same 1500 W rating and SMC package, but non-AEC-Q101, halogen-containing (non-HM3), and higher VC (12.0 V at 125 A). | Lacks automotive qualification and halogen-free compliance; suitable for industrial controls but not Tier-1 automotive BOMs. | Choose if AEC-Q101 and halogen-free requirements are waived and legacy sourcing is preferred. |
Compared with SMAJ7.5A-E3/57T and 1.5SMC7.5A-H, SM15T7V5AHM3/H delivers tighter clamping (11.3 V vs. ≥12.0 V), guaranteed automotive qualification, and halogen-free construction-making it the only option among the three qualified for safety-critical vehicle subsystems requiring long-term supply continuity and environmental compliance.
Availability
SM15T7V5AHM3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, CAN/LIN bus protection, and consumer power adapter designs requiring stable component supply across multi-year production cycles.
Supply support for SM15T7V5AHM3/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, power efficiency, and automotive-grade qualification.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive power distribution, industrial I/O protection, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for SM15T7V5AHM3/H?
The SM15T7V5AHM3/H has a specified breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, per Vishay Document Number 88380. This ±5% tolerance ensures predictable turn-on behavior across temperature and production lots, critical for protecting 5 V logic rails where overvoltage margin is narrow. The SM15T7V5AHM3/H maintains this specification under standard test conditions (TA = 25 °C).
Is SM15T7V5AHM3/H suitable for bidirectional transient protection?
No, SM15T7V5AHM3/H is a unidirectional TVS diode, as indicated by the "A" suffix and presence of a cathode band marking. For bidirectional protection, Vishay specifies the "CA" suffix (e.g., SM15T7V5CA). Using SM15T7V5AHM3/H on AC or differential signal lines without proper polarity alignment will result in forward conduction during normal operation and potential failure. Always verify polarity during layout for SM15T7V5AHM3/H placement.
What does the "HM3" suffix signify in SM15T7V5AHM3/H?
The "HM3" suffix in SM15T7V5AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It replaces the older "HE3" (RoHS + AEC-Q101) and "M3" (halogen-free RoHS, commercial grade) variants. The "H" confirms automotive qualification, "M" confirms halogen-free materials, and "3" indicates tape-and-reel packaging per JESD201 class 2 whisker resistance. This makes SM15T7V5AHM3/H compliant with Tier-1 automotive environmental and reliability standards.
How is thermal performance characterized for SM15T7V5AHM3/H?
SM15T7V5AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal, per Vishay's test condition in Document 88380. Its junction-to-lead (RθJL) is 15 °C/W. These values define maximum power dissipation limits: at TA = 50 °C, the device supports 6.5 W continuous power. Derating is required above 25 °C ambient, per Figure 2 in the datasheet. Proper pad sizing is essential to achieve rated performance for SM15T7V5AHM3/H.
Does SM15T7V5AHM3/H meet any international surge immunity standards?
Yes, SM15T7V5AHM3/H is rated for 1500 W peak pulse power with a 10/1000 μs waveform, aligning with IEC 61000-4-5 Ed. 3 (surge immunity testing) Level 4 (4 kV line-to-earth, 2 kV line-to-line) when applied in systems with appropriate source impedance. Its clamping voltage of 11.3 V at 132 A enables downstream ICs to meet IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity requirements. SM15T7V5AHM3/H itself is not certified to these standards, but its parameters are used to design compliant systems.
SM15T7V5AHM3/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):
- 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)
SM15T7V5AHM3/H FAQ
1.How can I place an order for SM15T7V5AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5AHM3/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 SM15T7V5AHM3/H reliable?
The price and inventory of SM15T7V5AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5AHM3/H is usually 5 days.
3.What payment methods are accepted for SM15T7V5AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5AHM3/H?
SM15T7V5AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5AHM3/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 SM15T7V5AHM3/H?
For technical support, including SM15T7V5AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5AHM3/H requirements.
6.How does Aetrix verify that SM15T7V5AHM3/H is sourced from the original manufacturer or authorized distributors?
All SM15T7V5AHM3/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 SM15T7V5AHM3/H meets industry standards.
7.What is the process for return or replacement of SM15T7V5AHM3/H?
All SM15T7V5AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5AHM3/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 SM15T7V5AHM3/H part is unused and in its original packaging.
Return procedure for SM15T7V5AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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