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Vishay General Semiconductor - Diodes Division SMP11-E3/84A
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- Part No.:
- SMP11-E3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP11-E3/84A.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,326
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Product details
Overview
SMP11-E3/84A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the eSMP® Series, designed for clamping voltage transients on power and signal lines. It features a 11 V standoff 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 maximum clamping voltage (VC) - protecting MOSFETs and ICs in industrial sensor interfaces.
For engineers reviewing the SMP11-E3/84A datasheet, SMP11-E3/84A pinout, SMP11-E3/84A application, or SMP11-E3/84A equivalent, key selection criteria include clamping performance at 22 A surge, unidirectional polarity with cathode band marking, DO-220AA (SMP) package compatibility with automated placement, and compliance with J-STD-020 MSL Level 1 at 260 °C peak reflow.
Technical Context
This TVS diode operates as a fast-acting shunt protector, responding to transient overvoltages within picoseconds and clamping to ≤18.2 V at 22 A. Its low incremental surge resistance and 2.5 V forward voltage at 25 A support robust surge handling without excessive power dissipation during forward conduction events.
Designed for PCB-level protection, it requires 5.0 mm × 5.0 mm copper pads per terminal for rated 400 W pulse capability and exhibits thermal resistance of 50 °C/W (junction-to-lead) and 250 °C/W (junction-to-ambient), enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 12.2 V / 13.5 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 18.2 V - Clamped voltage at 22 A peak pulse; determines maximum stress imposed on downstream components. |
| PPPM | 400 W - Peak pulse power handling with 10/1000 μs waveform; validates protection against IEC 61000-4-5 surges. |
| IFSM | 40 A - Non-repetitive forward surge rating (10 ms half-sine); supports robustness against accidental polarity reversals or inrush events. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in high-temperature industrial environments without derating. |
Pinout & Package
Package: SMP (DO-220AA), ultra-low-profile surface-mount case with matte tin-plated leads, 1.0 mm typical height, UL 94 V-0 molding compound, halogen-free and RoHS-compliant (M3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point under forward bias | Connected to lower-potential side of protected line; enables unidirectional clamping from cathode to anode. |
| Cathode | Current exit point under forward bias; marked with color band | Connected to higher-potential side (e.g., VCC or signal line); defines polarity-sensitive placement on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 18.2 V VC at 22 A ensures downstream ICs (e.g., 3.3 V or 5 V logic) remain below absolute maximum ratings during surge events. |
| Fast response time | Sub-nanosecond turn-on minimizes voltage overshoot before clamping engages, critical for protecting high-speed interfaces. |
| Automated placement compatibility | Low-profile DO-220AA package with defined lead geometry supports high-yield pick-and-place assembly in volume production. |
| Thermal reliability | RθJL = 50 °C/W allows efficient heat transfer to PCB copper, sustaining repeated 400 W pulses without thermal runaway. |
Applications
| Industrial Sensor Interface Protection | Power Supply Rail Clamp |
|---|---|
Use Scenario: Protecting analog front-end inputs of pressure or temperature sensors exposed to inductive switching noise in factory automation systems. IC Role / Device Role / Timing Role: Shunt TVS device placed between sensor signal line and ground to clamp ESD and load-switch transients. Use Value: Limits transient voltage to ≤18.2 V, preventing latch-up or gate oxide damage in precision op-amps and ADC drivers. | Use Scenario: Safeguarding 12 V input rails of embedded controllers subjected to automotive-style load dump surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected between rail and ground to absorb 400 W pulses without affecting steady-state regulation. Use Value: Maintains system uptime by preventing brownout or reset caused by >11 V transients exceeding rail supervisor thresholds. |
| MOSFET Gate Driver Protection | Communication Line Surge Suppression |
Use Scenario: Shielding high-side N-channel MOSFET gates driven by microcontrollers in motor control H-bridges. IC Role / Device Role / Timing Role: TVS placed between gate and source to suppress Miller-induced voltage spikes during switching transitions. Use Value: Prevents unintended turn-on or gate oxide failure by clamping spikes to <18.2 V while adding negligible capacitance (typ. <100 pF). | Use Scenario: Hardening RS-485 transceiver data lines against lightning-induced surges in building automation networks. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; SMP11-E3/84A used on single-ended supply side (VCC) of isolated transceiver power domain. Use Value: Complements external bidirectional TVS by securing the 12 V bias rail, ensuring transceiver IC remains powered and functional post-surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP11A-M3/84A | Same electrical specs and DO-220AA package; differs only in marking code (AZ vs. no code) and M3 halogen-free compliance. | No functional difference; both rated for 11 V VWM and 400 W PPPM. | Select SMP11A-M3/84A if halogen-free and RoHS+ requirements mandate M3 suffix compliance. |
| SMBJ11A | DO-214AA (SMB) package, 1.7 mm height, 600 W PPPM, 33 A IPPM, 19.9 V VC - larger footprint, higher power, higher clamping. | Better suited for higher-energy surges but requires more board space and has slower thermal response due to larger die. | Choose SMBJ11A only when 400 W is insufficient and PCB layout allows larger SMB footprint. |
Compared with SMP11A-M3/84A, SMP11-E3/84A offers identical protection performance in the same compact DO-220AA package but without mandatory M3 compliance labeling; versus SMBJ11A, it trades 200 W pulse headroom and 1.7 V higher clamping for 40 % lower profile and tighter placement tolerance in space-constrained designs.
Availability
SMP11-E3/84A is available at Aetrix Electronics and suitable for industrial sensor interfaces, power supply rail clamping, MOSFET gate driver protection, and communication line surge suppression requiring stable component supply and consistent surge immunity performance.
Supply support for SMP11-E3/84A 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The eSMP® Series, including SMP11-E3/84A, was engineered for high-density PCB layouts where low profile, automated assembly, and precise clamping performance are essential - particularly in industrial, automotive, and telecom infrastructure equipment.
FAQ
What is the standoff voltage rating of the SMP11-E3/84A?
The SMP11-E3/84A has a reverse standoff voltage (VWM) of 11 V, meaning it remains non-conductive up to this voltage under normal operating conditions. This value is confirmed in the Vishay datasheet Document Number 88481, Table on page 2, and defines the maximum continuous reverse voltage the device can block without entering breakdown.
Does the SMP11-E3/84A have unidirectional or bidirectional polarity?
The SMP11-E3/84A is a unidirectional TVS diode, with polarity indicated by a cathode band on the package. It conducts only during positive transients relative to its cathode, making it suitable for DC rail and single-polarity signal line protection - unlike bidirectional variants which protect both polarities.
What package type does the SMP11-E3/84A use, and what are its key mechanical attributes?
The SMP11-E3/84A uses the SMP (DO-220AA) package: ultra-low-profile surface mount with 1.0 mm typical height, 0.142" × 0.086" body dimensions, matte tin-plated leads, and UL 94 V-0 flammability rating. Its compact size supports high-density routing and automated placement per J-STD-002 solderability standards.
What is the maximum clamping voltage of the SMP11-E3/84A at its rated peak pulse current?
The SMP11-E3/84A clamps to a maximum of 18.2 V at its rated peak pulse current (IPPM) of 22 A, measured using a 10/1000 μs waveform. This clamping voltage is specified in the Electrical Characteristics table (page 2 of datasheet 88481) and determines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMP11-E3/84A compliant with RoHS and halogen-free requirements?
The SMP11-E3/84A carries the "E3" suffix, indicating Vishay's standard commercial-grade compliance - RoHS-compliant per EU Directive 2011/65/EU, but not explicitly halogen-free. For halogen-free and industrial-grade compliance, the SMP11A-M3/84A variant (with M3 suffix) is specified in the same datasheet and meets JESD201 Class 2 whisker resistance.
SMP11-E3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 19.9A
- 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)
SMP11-E3/84A FAQ
1.How can I place an order for SMP11-E3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP11-E3/84A 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 SMP11-E3/84A reliable?
The price and inventory of SMP11-E3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP11-E3/84A is usually 5 days.
3.What payment methods are accepted for SMP11-E3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP11-E3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP11-E3/84A?
SMP11-E3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP11-E3/84A 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 SMP11-E3/84A?
For technical support, including SMP11-E3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP11-E3/84A requirements.
6.How does Aetrix verify that SMP11-E3/84A is sourced from the original manufacturer or authorized distributors?
All SMP11-E3/84A 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 SMP11-E3/84A meets industry standards.
7.What is the process for return or replacement of SMP11-E3/84A?
All SMP11-E3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP11-E3/84A, 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 SMP11-E3/84A part is unused and in its original packaging.
Return procedure for SMP11-E3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP11-E3/84A Tags
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