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Vishay General Semiconductor - Diodes Division SMP11A-M3/84A
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- Part No.:
- SMP11A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP11A-M3/84A.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,809
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Product details
Overview
SMP11A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, featuring a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 22 A peak pulse current (IPPM), and 18.2 V clamping voltage (VC) at IPPM - used to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and telecom systems.
For engineers reviewing the SMP11A-M3/84A datasheet, SMP11A-M3/84A pinout, SMP11A-M3/84A application, or SMP11A-M3/84A equivalent, key selection criteria include clamping performance under 10/1000 μs surge, unidirectional polarity for DC-biased lines, MSL Level 1 reflow compatibility, and DO-220AA footprint suitability for high-density automated PCB assembly.
Technical Context
The SMP11A-M3/84A operates as a silicon avalanche diode designed for fast-response transient suppression on DC power rails and low-voltage signal paths. Its 1.0 mm profile and matte tin-plated leads support J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
It delivers 400 W peak pulse power per 10/1000 μs waveform with 18.2 V clamping at 22 A, while maintaining ≤1.0 μA reverse leakage at 11 V and a maximum junction temperature of +150 °C - enabling robust protection in space-constrained consumer, industrial, and telecom end equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 12.2 V / 13.5 V - guaranteed avalanche breakdown range at 1.0 mA test current |
| VC @ IPPM | 18.2 V - clamped voltage during 22 A 10/1000 μs surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 400 W - peak transient energy handling capability under standard 10/1000 μs waveform |
| IFSM | 40 A - non-repetitive forward surge rating for 10 ms half-sine, supporting inrush tolerance |
| TJ max | +150 °C - maximum junction temperature, enabling operation in hot industrial environments |
| RθJA | 250 °C/W - thermal resistance from junction to ambient, requiring adequate copper pad area (5.0 mm × 5.0 mm per terminal) |
Pinout & Package
Package: SMP (DO-220AA), ultra-low-profile surface-mount case with cathode band marking; dimensions: 3.61 mm × 2.18 mm × 1.0 mm (L × W × H); meets UL 94 V-0 flammability rating and RoHS/halogen-free requirements (M3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional TVS configuration |
| Cathode | Clamping node / protected line connection | Connected to line being protected (e.g., 12 V rail or sensor output); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables reliable suppression of high-energy transients common in automotive and industrial power switching |
| 18.2 V clamping voltage at 22 A | Limits overvoltage stress on downstream 12 V-rated ICs and MOSFETs during surge events |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without moisture-related damage or delamination |
| 0.024 g unit weight & 1.0 mm height | Minimizes board space and mass loading in portable and high-density telecom modules |
| Matte tin plating, JESD 201 Class 2 | Ensures long-term solder joint reliability and mitigates tin whisker risk in mission-critical applications |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O lines against back-EMF spikes from relay and solenoid coil de-energization. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and ground, clamping transients before they reach sensitive logic. Use Value: Prevents latch-up and permanent damage to 12 V-tolerant MCUs and level-shifters during frequent load switching cycles. | Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., door position, ambient light) from battery dump and load-dump events. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across LIN data line and ground, absorbing 10/1000 μs surges up to 400 W. Use Value: Maintains signal integrity and prevents false triggering or reset during ISO 7637-2 Pulse 5a transients. |
| Telecom Power Supply Inputs | Consumer IoT Sensor Nodes |
Use Scenario: Input-stage protection on 12 V DC-DC converter inputs subjected to lightning-induced surges on PoE-powered infrastructure. IC Role / Device Role / Timing Role: Primary clamping device on secondary-side 12 V distribution rail, coordinated with upstream MOVs. Use Value: Limits voltage overshoot to <18.2 V during combined 10/1000 μs + ringwave transients, preserving regulator input ratings. | Use Scenario: ESD and EFT protection on analog outputs of environmental sensors (e.g., temperature, humidity) in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed directly at connector interface, shunting fast transients to ground. Use Value: Achieves sub-100 ns response with <1.0 μA leakage at 11 V, avoiding signal distortion in mV-level sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP11A-M3/85A | Identical electrical specs; differs only in tape-and-reel packaging (10,000 pcs vs. 3,000 pcs on 7″ reel) | No functional difference; selected for higher-volume production runs | Choose SMP11A-M3/84A for prototyping and medium-batch builds where 7″ reels align with SMT feeder constraints |
| SMAJ11A | Same VWM (11 V) and VC (18.2 V), but lower PPPM (400 W vs. SMAJ11A's 400 W), larger SMA (DO-214AC) package (4.5 mm × 2.7 mm × 2.2 mm) | Less suitable for ultra-thin designs; requires more PCB area and has higher RθJA (~350 °C/W) | Select SMP11A-M3/84A when board height <1.1 mm or thermal performance with minimal copper is critical |
Compared with SMP11A-M3/85A, the SMP11A-M3/84A offers identical protection performance in a smaller reel format ideal for pilot runs; versus SMAJ11A, it delivers equal clamping with 30% lower profile and 30% better thermal resistance via optimized DO-220AA layout and copper pad coupling.
Availability
SMP11A-M3/84A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supply inputs requiring stable component supply, consistent M3-grade halogen-free compliance, and full traceability from Vishay General Semiconductor.
Supply support for SMP11A-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 transient protection devices with emphasis on reliability, miniaturization, and AEC-Q200 qualification readiness.
The SMP series was engineered specifically for high-density, low-profile transient suppression in space-constrained applications such as automotive ECUs, 5G infrastructure, and portable industrial tools - prioritizing MSL Level 1 reflow robustness and tight VBR tolerances.
FAQ
What is the clamping voltage of the SMP11A-M3/84A under a 10/1000 μs surge?
The SMP11A-M3/84A clamps to a maximum of 18.2 V at its rated peak pulse current of 22 A under a 10/1000 μs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMP11A-M3/84A maintains this clamping performance across its qualified operating temperature range.
Is the SMP11A-M3/84A suitable for automotive applications?
Yes, the SMP11A-M3/84A supports automotive use cases including body control modules and LIN bus protection, meeting MSL Level 1 reflow (260 °C peak) and JESD 201 Class 2 whisker resistance. While not AEC-Q200 qualified out-of-box, its 150 °C TJ max, 40 A IFSM, and robust DO-220AA construction make it a common choice for non-safety-critical automotive subsystems. Designers should validate SMP11A-M3/84A performance under ISO 7637-2 Pulse 5a in their specific layout.
What does the "M3" suffix indicate in SMP11A-M3/84A?
The "M3" suffix in SMP11A-M3/84A denotes Vishay's halogen-free, RoHS-compliant, industrial-grade construction with matte tin-plated terminals that pass JESD 201 Class 2 whisker testing. It also confirms compliance with UL 94 V-0 flammability standards for the molding compound. This suffix distinguishes the SMP11A-M3/84A from legacy non-halogen-free variants and ensures long-term reliability in high-reliability industrial deployments.
How does the SMP11A-M3/84A compare to SMAJ11A in terms of PCB footprint?
The SMP11A-M3/84A uses the DO-220AA (SMP) package measuring 3.61 mm × 2.18 mm, while the SMAJ11A uses the larger DO-214AC (SMA) package at 4.5 mm × 2.7 mm - a 30% reduction in board area. Additionally, the SMP11A-M3/84A is only 1.0 mm tall versus 2.2 mm for SMAJ11A, making it viable for ultra-thin assemblies where height clearance is constrained. Both share identical VWM and VC ratings.
What is the reverse leakage current specification for SMP11A-M3/84A at its stand-off voltage?
The SMP11A-M3/84A exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 11 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage ensures minimal power loss and avoids interference with high-impedance sensor circuits or battery-powered IoT nodes where quiescent current budget is tightly constrained. The SMP11A-M3/84A maintains this spec across its full operating temperature range.
SMP11A-M3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
SMP11A-M3/84A FAQ
1.How can I place an order for SMP11A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP11A-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 SMP11A-M3/84A reliable?
The price and inventory of SMP11A-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 SMP11A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP11A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP11A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP11A-M3/84A?
SMP11A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP11A-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 SMP11A-M3/84A?
For technical support, including SMP11A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP11A-M3/84A requirements.
6.How does Aetrix verify that SMP11A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP11A-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 SMP11A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP11A-M3/84A?
All SMP11A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP11A-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 SMP11A-M3/84A part is unused and in its original packaging.
Return procedure for SMP11A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP11A-M3/84A Tags
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