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Vishay General Semiconductor - Diodes Division 1.5SMC8.2A-M3/9AT
- Part No.:
- 1.5SMC8.2A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC8.2A-M3/9AT.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
1.5SMC8.2A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 7.02 V stand-off voltage (VWM), 7.79–8.61 V breakdown voltage (VBR) at 10 mA, 12.1 V maximum clamping voltage (VC) at 200 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 1.5SMC8.2A-M3/9AT datasheet, 1.5SMC8.2A-M3/9AT pinout, 1.5SMC8.2A-M3/9AT application, or 1.5SMC8.2A-M3/9AT equivalent, key selection criteria include unidirectional polarity, 12.1 V clamping performance under 200 A surge, SMC package thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification eligibility (M3 suffix), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that conducts above its breakdown threshold to shunt transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<200 µA at VWM) and fast response time (<1.0 ns), while the low incremental surge resistance enables effective suppression of lightning-induced and inductive-switching surges.
The 1.5SMC8.2A-M3/9AT is rated for 1500 W peak pulse power (10/1000 µs), derated linearly above 25 °C ambient per Fig. 2, and supports 200 A non-repetitive forward surge current (8.3 ms half-sine). Its M3 suffix denotes halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.02 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - Confirmed avalanche conduction threshold; ensures reliable turn-on during transients. |
| VC (Clamping) | 12.1 V at 200 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge; critical for IC voltage tolerance. |
| PPPM | 1500 W - Surge energy handling capacity with standard 10/1000 µs waveform; validates robustness against IEC 61000-4-5 Level 4 events. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8.0 mm × 8.0 mm copper pads; determines power derating in real layouts. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| IFSM | 200 A - Peak forward surge current rating (8.3 ms half-sine); supports protection of high-current power rails. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration. |
| Cathode | Current exit terminal during forward conduction | Connected to protected line (e.g., 5 V rail or sensor input); band-marked end must face higher potential. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Validated clamping performance under IEC 61000-4-5 surge test conditions without degradation. |
| Glass passivated junction | Ensures stable leakage current (<200 µA at VWM) and long-term reliability in humid or thermally cycled environments. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking. |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance requirements for automotive and industrial OEM supply chains. |
| AEC-Q101 qualification option | M3 suffix supports qualification path for automotive applications; base P/NHM3_X denotes certified version. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V or 12 V power rails in engine control units (ECUs) and body electronics from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp transients before they reach MCU power pins or LDO inputs. Use Value: Limits rail voltage to ≤12.1 V during 200 A surges, preventing latch-up or permanent damage to 16-bit MCUs and CAN transceivers. |
Use Scenario: Safeguarding analog outputs and digital I/O of pressure, temperature, or position sensors in factory automation systems. IC Role / Device Role / Timing Role: Clamping induced transients on sensor signal lines caused by nearby motor contactors or relay switching. Use Value: Maintains signal integrity by suppressing >1 kV transients to <12.1 V within nanoseconds, avoiding ADC saturation or microcontroller reset. |
| Consumer Power Adapter Input Stage | Telecom DC Power Distribution |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices and USB PD accessories. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to absorb flyback spikes and rectifier reverse recovery energy. Use Value: Withstands repetitive 1500 W surges without parameter shift, extending adapter lifetime under unstable grid conditions. |
Use Scenario: DC input protection in PoE-powered switches and remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor at 48 V DC input, coordinated with upstream GDTs and downstream polymer fuses. Use Value: Delivers 12.1 V clamping at 200 A with <1 ns response, reducing let-through energy to levels compatible with 30 V-rated DC-DC controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower peak pulse power (600 W), SMB package (smaller pad area), 12.0 V clamping at 62 A. | Targeted for space-constrained consumer electronics with lower surge exposure (IEC 61000-4-2 ESD only). | Select when board area is limited and surge threat level is moderate; not suitable for automotive load-dump or lightning scenarios. |
| 1.5KE8.2A | Through-hole DO-201 package, identical electrical specs but incompatible with SMT assembly; RθJA ≈ 50 °C/W on larger pads. | Used in legacy industrial controls where manual assembly or high-power dissipation on heatsinks is acceptable. | Choose only if through-hole manufacturing is required; avoids requalification but increases assembly cost and footprint. |
Compared with SMBJ8.0A and 1.5KE8.2A, the 1.5SMC8.2A-M3/9AT uniquely balances 1500 W surge capability, SMC surface-mount compatibility, and halogen-free compliance - making it optimal for new automotive and industrial designs requiring AEC-Q101 alignment and automated production.
Availability
1.5SMC8.2A-M3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer power adapters, and telecom DC distribution systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC8.2A-M3/9AT 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 protection devices with emphasis on reliability, thermal performance, and automotive-grade qualification.
The 1.5SMC Series was developed to deliver high-power transient suppression in compact SMC packages for automotive, industrial, and telecom applications where space, surge robustness, and regulatory compliance are jointly critical.
FAQ
What is the clamping voltage of the 1.5SMC8.2A-M3/9AT under a 200 A transient?
The 1.5SMC8.2A-M3/9AT has a maximum clamping voltage (VC) of 12.1 V when subjected to a 200 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is the 1.5SMC8.2A-M3/9AT qualified to AEC-Q101?
The 1.5SMC8.2A-M3/9AT itself is not pre-qualified, but it belongs to the Vishay 1.5SMC family for which AEC-Q101 qualification is available under ordering codes HM3_X (e.g., 1.5SMC8.2AHM3_A/9AT). The M3 suffix confirms halogen-free, RoHS-compliant construction aligned with automotive material requirements.
What is the standoff voltage (VWM) of the 1.5SMC8.2A-M3/9AT and why does it matter?
The 1.5SMC8.2A-M3/9AT has a standoff voltage (VWM) of 7.02 V - the maximum DC or continuous reverse voltage it can block without significant leakage. This parameter ensures the device remains non-conductive during normal operation while providing sufficient margin below its 7.79–8.61 V breakdown range.
Can the 1.5SMC8.2A-M3/9AT be used in bidirectional configurations?
No - the 1.5SMC8.2A-M3/9AT is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC8.2CA variant; mixing unidirectional and bidirectional types in the same design risks incorrect clamping behavior and system failure.
What PCB layout guidance applies to the 1.5SMC8.2A-M3/9AT for optimal thermal performance?
For optimal thermal performance, the 1.5SMC8.2A-M3/9AT must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Smaller pads increase RθJA beyond the rated 75 °C/W, risking thermal runaway during repetitive surges.
1.5SMC8.2A-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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)
1.5SMC8.2A-M3/9AT FAQ
1.How can I place an order for 1.5SMC8.2A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC8.2A-M3/9AT 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 1.5SMC8.2A-M3/9AT reliable?
The price and inventory of 1.5SMC8.2A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC8.2A-M3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC8.2A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC8.2A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC8.2A-M3/9AT?
1.5SMC8.2A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC8.2A-M3/9AT 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 1.5SMC8.2A-M3/9AT?
For technical support, including 1.5SMC8.2A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC8.2A-M3/9AT requirements.
6.How does Aetrix verify that 1.5SMC8.2A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC8.2A-M3/9AT 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 1.5SMC8.2A-M3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC8.2A-M3/9AT?
All 1.5SMC8.2A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC8.2A-M3/9AT, 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 1.5SMC8.2A-M3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC8.2A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC8.2A-M3/9AT Tags
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Diodes Incorporated
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