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Vishay General Semiconductor - Diodes Division SMP8.0A-M3/84A
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- Part No.:
- SMP8.0A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP8.0A-M3/84A.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
SMP8.0A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, featuring 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 29.4 A peak pulse current (IPPM), and 13.6 V maximum clamping voltage (VC). It protects sensitive ICs and MOSFETs against inductive switching transients in industrial and telecom power rails.
For engineers reviewing the SMP8.0A-M3/84A datasheet, SMP8.0A-M3/84A pinout, SMP8.0A-M3/84A application, or SMP8.0A-M3/84A equivalent, key selection criteria include clamping voltage margin relative to protected device's absolute maximum rating, thermal resistance (RθJA = 250 °C/W), unidirectional polarity, MSL Level 1 solderability, and 1.0 mm profile for space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced surges per IEC 61000-4-2/4-5. Its DO-220AA package supports automated placement and meets UL 94 V-0 flammability requirements.
Designed for DC power line and signal line protection, it delivers stable clamping performance across -55 °C to +150 °C junction temperature range, with 50 °C/W typical junction-to-lead thermal resistance and 40 A non-repetitive forward surge rating (10 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's normal operating rail. |
| VBR min/max | 8.89 V / 9.83 V - Breakdown occurs within this range at 1.0 mA test current; ensures reliable turn-on before downstream device damage. |
| VC @ IPPM | 13.6 V - Clamping voltage at 29.4 A peak pulse; defines worst-case overvoltage seen by protected IC during surge event. |
| PPPM | 400 W - Peak pulse power handling capability with 10/1000 μs waveform; determines survivability under standardized surge stress. |
| IFSM | 40 A - Non-repetitive forward surge current rating (10 ms half-sine); supports robustness against inrush or fault currents. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial environments without derating. |
| RθJA | 250 °C/W - Junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads; informs thermal design margin for sustained power dissipation. |
Pinout & Package
Package: SMP (DO-220AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow), 1.0 mm typical height, matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or lower-potential node; completes clamping loop during transient events. |
| Cathode | Clamping output / Protected line connection | Connected to line being protected (e.g., 8 V rail); conducts when voltage exceeds VBR to shunt surge energy. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile packaging | 1.0 mm typical height enables use in ultra-thin consumer and portable electronics where Z-height is constrained. |
| High peak pulse power | 400 W (10/1000 μs) provides margin against repetitive or severe transients in industrial motor drives and power supplies. |
| Fast response time | <1 ns reaction enables clamping before ESD or surge energy couples into sensitive CMOS inputs or gate drivers. |
| Low clamping ratio | VC/VWM = 1.7 - Tight ratio (13.6 V / 8.0 V) minimizes overvoltage stress on protected devices with narrow supply tolerances. |
| Automated placement compatibility | DO-220AA outline and matte tin plating ensure reliable pick-and-place yield and solder joint integrity per J-STD-002. |
Applications
| Industrial Motor Drive Protection | Telecom Power Rail Clamping |
|---|---|
|
Use Scenario: Suppresses voltage spikes from relay coil de-energization and H-bridge shoot-through in PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 8 V logic supply rail and ground to clamp transients below 13.6 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and level-shifters operating at 8 V nominal supply. |
Use Scenario: Protects 8 V bias rails feeding RF front-end amplifiers and clock buffers in base station power distribution boards. IC Role / Device Role / Timing Role: Standoff-rated clamping device absorbing IEC 61000-4-5 combination wave surges on telecom DC feeds. Use Value: Maintains signal integrity and prevents reset events in timing-critical components by limiting overvoltage to ≤13.6 V. |
| Automotive Body Control Module | Consumer USB Power Delivery Interface |
|
Use Scenario: Shields 8 V microcontroller supply lines from load-dump and jump-start transients in BCM sub-assemblies. IC Role / Device Role / Timing Role: Primary transient suppressor on 8 V domain, mounted directly at IC input pins with minimal trace length. Use Value: Ensures functional safety compliance (ISO 16750-2) by clamping 100 V/100 ms pulses to safe levels without degradation. |
Use Scenario: Guards 8 V auxiliary power path in USB PD sink controllers during hot-plug and cable fault conditions. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp on VBUS-derived 8 V rail feeding PD policy engine and communication PHY. Use Value: Eliminates need for secondary overvoltage protection ICs by providing integrated, low-capacitance (<100 pF) surge suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP8.0A-M3/85A | Same electrical specs; differs only in tape-and-reel packaging (10,000 pcs vs. 3,000 pcs on 13″ vs. 7″ reel) | No functional difference; selected for high-volume SMT production requiring larger reels | Choose SMP8.0A-M3/84A for prototyping or medium-batch builds; SMP8.0A-M3/85A for full-line automation with bulk feeders. |
| SMAJ8.0A | Higher RθJA (350 °C/W), larger SMA package (2.5 mm height), same VWM/VC but lower IPPM (27.8 A) | Less suitable for dense layouts or high-thermal-load environments; requires larger pad area | Use SMAJ8.0A only if DO-220AA footprint is incompatible; SMP8.0A-M3/84A offers superior thermal and spatial efficiency. |
Compared with SMP8.0A-M3/85A, the SMP8.0A-M3/84A enables faster changeovers and reduced feeder downtime in low-to-mid volume lines; versus SMAJ8.0A, it delivers 22 % higher peak pulse current and 40 % lower profile while maintaining identical clamping performance.
Availability
SMP8.0A-M3/84A is available at Aetrix Electronics and suitable for industrial motor control, telecom power distribution, automotive body electronics, and consumer USB PD interface designs requiring stable component supply and guaranteed long-term sourcing.
Supply support for SMP8.0A-M3/84A 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, precision, and application-specific optimization.
The SMP series was engineered specifically for high-density, high-reliability transient suppression in space-constrained power and signal lines-targeting industrial automation, telecom infrastructure, and automotive electronics where low profile and MSL-1 compliance are mandatory.
FAQ
What is the clamping voltage of the SMP8.0A-M3/84A under a 10/1000 μs surge?
The SMP8.0A-M3/84A has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 29.4 A using the 10/1000 μs waveform. This value is measured at the device terminals under standardized test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads), and represents the highest voltage the protected circuit will experience during such a transient. The SMP8.0A-M3/84A maintains this clamping performance across its full operating temperature range.
Is the SMP8.0A-M3/84A suitable for bidirectional transient protection?
No, the SMP8.0A-M3/84A is a unidirectional transient voltage suppressor, designed only for clamping positive-going transients on a DC line referenced to ground. It does not provide symmetrical protection for AC signals or bipolar surges. For bidirectional applications, a dedicated bidirectional TVS such as the SMBJ8.0CA must be used instead. The SMP8.0A-M3/84A polarity is marked by a cathode band and must be oriented with cathode toward the protected line.
What is the thermal resistance of the SMP8.0A-M3/84A, and how does it affect layout design?
The SMP8.0A-M3/84A has a typical junction-to-ambient thermal resistance (RθJA) of 250 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet. To maintain safe junction temperatures during repeated surges, PCB layout must allocate adequate copper area and avoid thermal bottlenecks-especially critical in enclosed industrial enclosures. The SMP8.0A-M3/84A also features 50 °C/W junction-to-lead resistance, supporting efficient heat conduction through solder joints.
Does the SMP8.0A-M3/84A meet lead-free and RoHS requirements?
Yes, the SMP8.0A-M3/84A is halogen-free, RoHS-compliant, and qualified to JESD 201 Class 2 for whisker resistance. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and the molding compound meets UL 94 V-0 flammability standards. The "M3" suffix explicitly denotes industrial-grade, lead-free, and environmentally compliant construction-making the SMP8.0A-M3/84A suitable for global commercial and industrial deployments with strict material declarations.
How does the SMP8.0A-M3/84A compare to older SMA-package TVS diodes in terms of board space and performance?
The SMP8.0A-M3/84A uses the DO-220AA (SMP) package, which reduces footprint area by ~35 % and height by ~60 % compared to legacy SMA packages like those used in SMAJ8.0A. Despite its smaller size, the SMP8.0A-M3/84A delivers higher peak pulse current (29.4 A vs. 27.8 A) and lower clamping voltage (13.6 V vs. 13.7 V), along with improved thermal resistance (RθJA = 250 °C/W vs. 350 °C/W). These advantages make the SMP8.0A-M3/84A ideal for next-generation compact power systems where density and thermal performance are co-optimized.
SMP8.0A-M3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
SMP8.0A-M3/84A FAQ
1.How can I place an order for SMP8.0A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP8.0A-M3/84A 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 SMP8.0A-M3/84A reliable?
The price and inventory of SMP8.0A-M3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP8.0A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP8.0A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP8.0A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP8.0A-M3/84A?
SMP8.0A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP8.0A-M3/84A 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 SMP8.0A-M3/84A?
For technical support, including SMP8.0A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP8.0A-M3/84A requirements.
6.How does Aetrix verify that SMP8.0A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP8.0A-M3/84A 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 SMP8.0A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP8.0A-M3/84A?
All SMP8.0A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP8.0A-M3/84A, 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 SMP8.0A-M3/84A part is unused and in its original packaging.
Return procedure for SMP8.0A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP8.0A-M3/84A Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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