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Vishay General Semiconductor - Diodes Division SMP7.0A-M3/84A
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- Part No.:
- SMP7.0A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP7.0A-M3/84A.pdf
- Description:
- TVS DIODE 7VWM 12VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,573
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Product details
Overview
SMP7.0A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, rated for 400 W peak pulse power (10/1000 μs), 7.0 V stand-off voltage, and 12.0 V clamping voltage at 33.3 A peak surge current. It protects sensitive ICs and MOSFETs against inductive switching transients in industrial and telecom signal lines.
For engineers reviewing the SMP7.0A-M3/84A datasheet, SMP7.0A-M3/84A pinout, SMP7.0A-M3/84A application, or SMP7.0A-M3/84A equivalent, key selection criteria include clamping voltage (12.0 V), unidirectional polarity, 400 W surge rating, DO-220AA footprint compatibility, and M3 halogen-free/RoHS compliance for automated SMT assembly.
Technical Context
This device operates as a unidirectional TVS diode with a breakdown voltage range of 7.78 V to 8.60 V at 10 mA test current, ensuring reliable turn-on before system damage occurs. Its low 12.0 V clamping voltage at 33.3 A limits stress on downstream components during ESD or lightning-induced surges.
The SMP7.0A-M3/84A features a thermal resistance of 50 °C/W (junction-to-lead) and 250 °C/W (junction-to-ambient), enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal. It meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker testing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (10/1000 μs waveform; defines maximum transient energy absorption without failure) |
| Stand-off Voltage (VWM) | 7.0 V (maximum continuous reverse voltage before significant leakage; sets operating margin) |
| Clamping Voltage (VC) | 12.0 V at 33.3 A (voltage seen by protected circuit during worst-case surge; critical for IC survival) |
| Breakdown Voltage (VBR) | 7.78–8.60 V at 10 mA (guaranteed conduction onset; ensures predictable protection threshold) |
| Peak Surge Current (IPPM) | 33.3 A (10/1000 μs; quantifies maximum transient current the device can shunt safely) |
| Operating Temperature | −55 °C to +150 °C (supports deployment in harsh industrial and automotive under-hood environments) |
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, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line; color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V industrial buses |
| 12.0 V clamping at 33.3 A | Keeps protected 5 V or 3.3 V logic rails below absolute maximum ratings during 10/1000 μs transients |
| DO-220AA package (1.0 mm height) | Reduces board space and enables high-density routing in compact sensor modules and telecom interfaces |
| M3 suffix compliance | Guarantees halogen-free, RoHS-compliant, and JESD 201 Class 2 whisker-resistant construction for long-term reliability |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) Signal Lines |
|---|---|
Use Scenario: Protecting 24 V digital input channels in programmable logic controllers from relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Unidirectional TVS placed between field input and optocoupler input to clamp transients before isolation barrier. Use Value: 12.0 V clamping ensures optocoupler LED anode remains within 30 V absolute max rating during 400 W surges. |
Use Scenario: Safeguarding LIN bus transceivers and sensor inputs in body control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN data line to absorb coupled transients while maintaining signal integrity up to 20 kbps. Use Value: 7.0 V VWM allows full 12 V battery swing operation; 12.0 V VC prevents transceiver latch-up during 100 V/50 ms load dump events. |
| Telecom Base Station Sensor Interfaces | Consumer Smart Home Hub Ethernet PHY Protection |
Use Scenario: Shielding temperature/humidity sensor analog outputs in outdoor telecom cabinets from nearby lightning-induced coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS on 0–5 V analog output line to suppress sub-μs ESD events without distorting DC accuracy. Use Value: DO-220AA package minimizes parasitic capacitance; 12.0 V VC preserves 12-bit ADC full-scale range under transient stress. |
Use Scenario: Adding secondary surge protection on 3.3 V Ethernet PHY power and MDI lines in smart home gateways with limited PCB area. IC Role / Device Role / Timing Role: Compact unidirectional TVS on PHY VDDIO rail to complement primary MOV-based front-end protection. Use Value: 400 W rating handles residual energy after upstream suppression; 1.0 mm height avoids interference with RJ45 connector mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP7.0A-M3/85A | Identical 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 production requiring larger reels and reduced changeover frequency | Choose SMP7.0A-M3/85A when optimizing for SMT line efficiency in volume manufacturing runs ≥50k units/year |
| SMAJ7.0A | Same VWM (7.0 V) and VC (12.0 V), but lower PPPM (400 W same), larger SMA (DO-214AC) package (2.3 mm height), higher RθJA (350 °C/W) | Less suitable for ultra-thin designs; requires more PCB area and offers inferior thermal performance under sustained surge duty | Select SMAJ7.0A only if legacy SMA footprint compatibility is mandatory and height constraints are relaxed |
Compared with SMP7.0A-M3/85A (identical function, different reel size) and SMAJ7.0A (same electrical specs but larger, thermally inferior package), the SMP7.0A-M3/84A delivers optimal balance of miniaturization, thermal capability, and standard SMT logistics for new industrial and telecom designs.
Availability
SMP7.0A-M3/84A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive BCM signal lines, and telecom sensor interface applications requiring stable component supply and M3-compliant materials.
Supply support for SMP7.0A-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 developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for space-constrained industrial, automotive, and telecom systems where traditional DO-214 packages cannot fit.
FAQ
What is the clamping voltage of the SMP7.0A-M3/84A under a 10/1000 μs surge?
The SMP7.0A-M3/84A has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current of 33.3 A using the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C with the device mounted on 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet document 88481. The SMP7.0A-M3/84A maintains this clamping performance across its full operating temperature range.
Is the SMP7.0A-M3/84A unidirectional or bidirectional?
The SMP7.0A-M3/84A is a unidirectional transient voltage suppressor, designed for use in DC circuits where reverse polarity is not expected. Its polarity is marked by a cathode band on the DO-220AA package, and it conducts only when the cathode is at a higher potential than the anode. This configuration is confirmed in the "PRIMARY CHARACTERISTICS" table and "Polarity" line of the Vishay SMP3V3–SMP36A datasheet (Rev. 25-Apr-2022).
What does the "M3" suffix indicate in SMP7.0A-M3/84A?
The "M3" suffix denotes that the SMP7.0A-M3/84A is halogen-free, RoHS-compliant, and qualified to JESD 201 Class 2 for tin whisker resistance. It also signifies industrial-grade qualification and compliance with UL 94 V-0 flammability standards for the molding compound. These attributes are explicitly defined in the "MECHANICAL DATA" section of the Vishay datasheet 88481.
What is the package type and dimensions of the SMP7.0A-M3/84A?
The SMP7.0A-M3/84A uses the SMP (DO-220AA) package: a surface-mount case with 1.0 mm typical height, 3.61 mm maximum length, 2.18 mm maximum width, and 0.35 mm lead thickness. Dimensions are fully specified in the "PACKAGE OUTLINE DIMENSIONS" drawing on page 4 of the Vishay datasheet 88481. The package supports automated placement and meets MSL Level 1 per J-STD-020.
Does the SMP7.0A-M3/84A meet any industry surge immunity standards?
The SMP7.0A-M3/84A is engineered to support compliance with IEC 61000-4-5 (surge immunity) and IEC 61000-4-2 (ESD immunity) when properly applied in circuit layouts with adequate PCB copper area. Its 400 W peak pulse power rating and 12.0 V clamping voltage enable protection against Level 4 (4 kV line-to-earth, 2 Ω source impedance) surges per IEC 61000-4-5, as validated in Vishay's application guidance for the SMP series.
SMP7.0A-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SMP7.0A-M3/84A FAQ
1.How can I place an order for SMP7.0A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP7.0A-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 SMP7.0A-M3/84A reliable?
The price and inventory of SMP7.0A-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 SMP7.0A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP7.0A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP7.0A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP7.0A-M3/84A?
SMP7.0A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP7.0A-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 SMP7.0A-M3/84A?
For technical support, including SMP7.0A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP7.0A-M3/84A requirements.
6.How does Aetrix verify that SMP7.0A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP7.0A-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 SMP7.0A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP7.0A-M3/84A?
All SMP7.0A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP7.0A-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 SMP7.0A-M3/84A part is unused and in its original packaging.
Return procedure for SMP7.0A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP7.0A-M3/84A Tags
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