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Vishay General Semiconductor - Diodes Division SM15T7V5A-M3/57T
- Part No.:
- SM15T7V5A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T7V5A-M3/57T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,199
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Product details
Overview
SM15T7V5A-M3/57T 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, 11.3 V maximum clamping voltage at 132 A peak pulse current, and 1500 W peak pulse power rating for 10/1000 μs waveform. It protects MOSFETs and ICs against inductive switching transients in automotive power supplies.
For engineers reviewing the SM15T7V5A-M3/57T datasheet, SM15T7V5A-M3/57T pinout, SM15T7V5A-M3/57T application, or SM15T7V5A-M3/57T equivalent, key selection criteria include clamping voltage under 11.3 V at 132 A, stand-off voltage of 6.40 V, unidirectional polarity with cathode band marking, and halogen-free RoHS-compliant M3 termination.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds 7.13 V (VBR min), it avalanches to clamp transient energy within 11.3 V (VC max) at IPPM = 132 A. Its low-inductance SMC package enables fast response to sub-microsecond transients.
Designed for high-energy threat suppression, it handles 1500 W peak pulse power per 10/1000 μs waveform and sustains 200 A non-repetitive forward surge current. Thermal resistance is 75 °C/W junction-to-ambient on standard 8.0 mm × 8.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.13 V - Ensures reliable avalanche initiation above normal 6.40 V operating rail. |
| VC @ IPPM | 11.3 V at 132 A - Limits protected circuit voltage during worst-case lightning-induced surge. |
| PPPM | 1500 W - Withstands high-energy transients from industrial motor switching or lightning coupling. |
| VWM | 6.40 V - Maximum continuous reverse voltage without significant leakage (<500 μA). |
| IFSM | 200 A - Survives single half-sine 10 ms surges common in automotive load-dump events. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments with minimal derating. |
| RθJA | 75 °C/W - Requires ≥8 mm × 8 mm copper pad per terminal for thermal compliance at full power. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode identified by molded band on case end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction or clamping | Connected to system ground or low-side return path; must handle 200 A surge current. |
| Cathode | Current exit during reverse clamping | Marked with band; connected to protected line (e.g., 5 V rail); clamps to ≤11.3 V during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 (4 kV) surges without external series impedance. |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes voltage overshoot across sensitive 5 V logic interfaces during transient events. |
| Glass passivated junction | Ensures stable VBR and low leakage (<500 μA) over 150 °C junction temperature range. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow assembly without popcorn cracking or delamination. |
| Halogen-free M3 termination | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1). |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground, clamping excess voltage before it reaches LDOs or microcontrollers. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic rails by limiting peak voltage to 11.3 V during 132 A surge. | Use Scenario: Shields PLC analog input channels from inductive kickback generated by 24 V solenoid valves. IC Role / Device Role / Timing Role: Shunt protector on signal line between field device and ADC front-end, triggered within nanoseconds of overvoltage onset. Use Value: Maintains signal integrity by clamping transients before they exceed the ±15 V absolute maximum rating of instrumentation amplifiers. |
| Consumer DC-DC Converter Output Protection | Telecom Base Station Power Rail Protection |
Use Scenario: Guards 5 V output of buck converter supplying USB peripherals against ESD and board-level switching noise. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed directly at converter output capacitor, minimizing trace inductance. Use Value: Reduces risk of downstream USB controller reset by holding output below 11.3 V during 10/1000 μs 1500 W surges. | Use Scenario: Protects +48 V telecom power distribution network from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary shunt suppressor on main DC feed, coordinated with upstream GDTs and series impedance. Use Value: Absorbs up to 1500 W pulse energy while maintaining clamping voltage below 11.3 V, preserving rectifier bridge reliability. |
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 | Lower PPPM (400 W), higher VC (12.0 V at 32.4 A), same SMC package | Not suitable for 1500 W lightning threats; limited to lower-energy ESD or switching noise | Select SMAJ7.5A only for cost-sensitive consumer applications with <500 W threat profiles. |
| SMCJ7.5A | Same 1500 W rating and VC (11.3 V), but commercial-grade E3 termination (not halogen-free) | Lacks halogen-free compliance required by Tier 1 automotive customers | Choose SMCJ7.5A for industrial applications where M3 material compliance is not mandated. |
Compared with SM15T7V5A-M3/57T, SMAJ7.5A offers lower surge capacity and less precise clamping, while SMCJ7.5A matches electrical performance but omits halogen-free construction-making SM15T7V5A-M3/57T the sole option meeting AEC-Q101-aligned material specs and full 1500 W capability.
Availability
SM15T7V5A-M3/57T is available at Aetrix Electronics and suitable for automotive power supply protection, industrial motor drive I/O protection, and consumer DC-DC converter output protection requiring stable component supply and halogen-free compliance.
Supply support for SM15T7V5A-M3/57T 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, with global manufacturing and testing infrastructure.
The SM15T Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, emphasizing robust clamping, AEC-Q101 qualification readiness, and halogen-free packaging for regulated markets.
FAQ
What is the clamping voltage of SM15T7V5A-M3/57T at its rated peak pulse current?
The SM15T7V5A-M3/57T has a maximum clamping voltage (VC) of 11.3 V when subjected to its peak pulse current (IPPM) of 132 A under a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and ensures protected circuits remain below critical voltage thresholds during surge events. The SM15T7V5A-M3/57T maintains this clamping performance across its operational temperature range.
Is SM15T7V5A-M3/57T suitable for automotive applications?
Yes, SM15T7V5A-M3/57T is qualified per AEC-Q101 when ordered with HE3 or HM3 suffixes; the M3 suffix indicates halogen-free, RoHS-compliant construction aligned with automotive material requirements. While SM15T7V5A-M3/57T itself is commercial-grade, its design basis, thermal rating (150 °C TJ max), and robust surge handling make it suitable for under-hood and body-control module use when validated per system-level test standards. The SM15T7V5A-M3/57T meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility.
What does the "M3" in SM15T7V5A-M3/57T signify?
The "M3" suffix in SM15T7V5A-M3/57T denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that meet JESD201 Class 2 whisker resistance and solderability per J-STD-002. It distinguishes the part from E3 (RoHS-compliant but not halogen-free) and HM3 (AEC-Q101 qualified + halogen-free). The SM15T7V5A-M3/57T is intended for commercial and industrial applications requiring green material compliance without automotive qualification.
How is polarity identified on SM15T7V5A-M3/57T?
SM15T7V5A-M3/57T is a unidirectional TVS diode, and polarity is marked by a molded cathode band at one end of the SMC (DO-214AB) package. The banded end is the cathode and must be connected to the line being protected (e.g., 5 V rail), while the opposite end (anode) connects to ground. No marking appears on bidirectional variants; the SM15T7V5A-M3/57T's band confirms its unidirectional function and correct orientation during PCB layout.
What is the thermal resistance of SM15T7V5A-M3/57T, and how does it affect layout?
The SM15T7V5A-M3/57T 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. To maintain safe junction temperatures under 1500 W pulse loads, PCB layout must provide these minimum pad dimensions and avoid excessive trace length or narrow traces between the SM15T7V5A-M3/57T terminals and solid copper planes. Derating applies above 25 °C ambient per Figure 2 in the datasheet.
SM15T7V5A-M3/57T 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T7V5A-M3/57T FAQ
1.How can I place an order for SM15T7V5A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T7V5A-M3/57T 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 SM15T7V5A-M3/57T reliable?
The price and inventory of SM15T7V5A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T7V5A-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T7V5A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T7V5A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T7V5A-M3/57T?
SM15T7V5A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T7V5A-M3/57T 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 SM15T7V5A-M3/57T?
For technical support, including SM15T7V5A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T7V5A-M3/57T requirements.
6.How does Aetrix verify that SM15T7V5A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T7V5A-M3/57T 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 SM15T7V5A-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T7V5A-M3/57T?
All SM15T7V5A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T7V5A-M3/57T, 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 SM15T7V5A-M3/57T part is unused and in its original packaging.
Return procedure for SM15T7V5A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T7V5A-M3/57T Tags
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