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Vishay General Semiconductor - Diodes Division SMP30-M3/84A
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- Part No.:
- SMP30-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP30-M3/84A.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,319
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Product details
Overview
SMP30-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown range (VBR), 400 W peak pulse power (10/1000 μs), 8.3 A peak pulse current (IPPM), and low 48.4 V clamping voltage (VC) at rated surge. It protects MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMP30-M3/84A datasheet, SMP30-M3/84A pinout, SMP30-M3/84A application, or SMP30-M3/84A equivalent, key selection criteria include unidirectional polarity, DO-220AA (SMP) package compatibility with automated placement, 150 °C max junction temperature, MSL Level 1 rating, and halogen-free RoHS-compliant construction per JESD201 Class 1A whisker test.
Technical Context
This TVS diode operates as a voltage-clamping protection device in parallel with sensitive circuit nodes. Its silicon avalanche structure delivers sub-nanosecond response time and low incremental surge resistance to limit transient overvoltage before downstream components are stressed.
It is rated for non-repetitive 10/1000 μs waveform surges up to 400 W when mounted on 5.0 mm × 5.0 mm copper pads per terminal, with thermal resistance of 50 °C/W junction-to-lead and 250 °C/W junction-to-ambient - enabling effective heat dissipation in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum reverse operating voltage before significant leakage; defines safe DC/AC bias margin for protected line |
| VBR min/max | 33.3 V / 36.8 V - breakdown occurs within this range at 1 mA test current; ensures predictable clamping onset |
| VC @ IPPM | 48.4 V - clamped voltage during 8.3 A 10/1000 μs surge; determines worst-case overvoltage seen by protected IC |
| PPPM | 400 W - peak pulse power handling capability; defines energy absorption capacity for standardized surge events |
| IFSM | 40 A - surge current rating for 10 ms half-sine wave; supports high-energy fault conditions without bond wire failure |
| TJ max | +150 °C - maximum junction temperature; enables reliable operation in high-ambient industrial environments |
| Package | DO-220AA (SMP) - ultra-low-profile 1.0 mm typical height; compatible with fine-pitch SMT assembly and reflow profiles |
Pinout & Package
DO-220AA (SMP) package: two-terminal surface-mount device with cathode indicated by color band; matte tin-plated leads solderable per J-STD-002 and JESD22-B102; meets MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lower-potential rail; forms current path during reverse-biased clamping event |
| Cathode | High-side connection point | Marked with color band; connected to protected line (e.g., 24 V supply or RS-485 bus); conducts avalanche current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 1.0 mm typical height - enables use in space-constrained modules such as PoE injectors and sensor edge nodes |
| Automated placement compatibility | DO-220AA outline with defined lead coplanarity - supports high-yield pick-and-place at >30,000 UPH |
| 400 W pulse power (10/1000 μs) | Validated energy absorption per IEC 61000-4-5 Level 4 - protects against severe industrial surge events |
| Halogen-free & RoHS compliant | M3 suffix confirms compliance with JEDEC JS709A and EU Directive 2011/65/EU - satisfies environmental requirements for global OEMs |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH - eliminates bake-out requirement prior to reflow assembly |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers (PLCs) against relay coil flyback and field wiring transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp surges before upstream DC-DC converter and microcontroller. Use Value: 48.4 V clamping voltage ensures downstream 3.3 V/5 V logic remains below absolute maximum ratings during 1 kV/2 kA surge events. |
Use Scenario: Safeguarding RS-485 transceivers on base station line cards exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Parallel-connected TVS on differential bus lines (A/B) to divert common-mode transients to ground reference. Use Value: Sub-1 ns response time and 8.3 A IPPM capability meet Telcordia GR-1089-CORE Level 3 immunity requirements. |
| Automated Test Equipment (ATE) Signal Integrity | Motor Drive Gate Driver Protection |
Use Scenario: Shielding analog front-end inputs of precision data acquisition systems from ESD and relay contact bounce. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <50 pF) placed directly at connector interface to minimize signal distortion. Use Value: 30 V VWM allows integration into ±15 V analog signal paths without forward conduction during normal operation. |
Use Scenario: Preventing gate oxide damage in 600 V IGBTs caused by Miller-induced voltage spikes during high-dI/dt switching. IC Role / Device Role / Timing Role: TVS across gate-emitter terminals to clamp transient overshoot exceeding ±20 V absolute maximum rating. Use Value: 40 A IFSM rating withstands repetitive gate drive fault currents without degradation over 10-year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ30A | Same DO-214AC (SMA) package; 33.3–37.1 V VBR; 48.4 V VC; but 600 W PPPM rating and higher RθJA (350 °C/W) | Higher power rating suits heavier-duty surge environments; larger footprint may conflict with dense layouts optimized for SMP | Select SMAJ30A only if board space permits larger SMA package and higher 600 W surge margin is required |
| ON Semiconductor SMCJ30A | DO-214AB (SMC) package; identical 30 V VWM and 48.4 V VC; but 1.5 mm height and 1500 W PPPM; higher thermal mass | Superior energy handling for repeated surges; requires revised pad layout and reflow profile due to larger body and thermal inertia | Choose SMCJ30A when protecting high-reliability motor control inverters where multi-pulse robustness outweighs size constraints |
Compared with SMP30-M3/84A, SMAJ30A offers higher pulse power in a different package requiring PCB redesign, while SMCJ30A delivers greater surge endurance at the cost of 50 % greater height and thermal footprint - making SMP30-M3/84A optimal for ultra-thin, high-density industrial modules where 400 W capability suffices.
Availability
SMP30-M3/84A is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automated test equipment, and motor drive gate driver circuits requiring stable component supply and consistent M3-grade environmental compliance.
Supply support for SMP30-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SMP series was engineered for high-volume, space-constrained applications demanding low-profile, automated-assembly-ready transient protection - particularly in industrial automation, communications infrastructure, and automotive-qualified power systems.
FAQ
What is the polarity configuration of the SMP30-M3/84A?
The SMP30-M3/84A is a unidirectional TVS diode, meaning it functions as a reverse-biased avalanche clamp. Its cathode is marked by a color band and must be connected to the protected line, while the anode connects to ground. This configuration blocks forward current under normal operation and conducts only during negative transients relative to ground - critical for DC power rail protection where polarity is fixed.
Does the SMP30-M3/84A meet JEDEC MSL Level 1 requirements?
Yes, the SMP30-M3/84A meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it has unlimited floor life when stored at ≤30 °C and ≤60 % relative humidity, eliminating the need for pre-reflow baking - a key advantage for high-throughput SMT lines using the SMP30-M3/84A in consumer and industrial manufacturing.
What is the clamping voltage of the SMP30-M3/84A at its rated peak pulse current?
The SMP30-M3/84A exhibits a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPPM) of 8.3 A, measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is verified per ANSI/IEEE C62.35 test methodology.
Can the SMP30-M3/84A be used in bidirectional signal line protection?
No - the SMP30-M3/84A is strictly unidirectional and unsuitable for bidirectional AC or differential signal lines like USB or RS-485 without external circuitry. For such applications, a dedicated bidirectional TVS (e.g., SMP30AY-M3/84A) or back-to-back unidirectional pair would be required; using SMP30-M3/84A alone risks forward conduction and failure on positive half-cycles.
What does the "M3/84A" suffix indicate in SMP30-M3/84A?
The "M3" denotes halogen-free, RoHS-compliant construction meeting JEDEC JS709A and EU Directive 2011/65/EU, plus JESD201 Class 1A whisker resistance. The "84A" specifies the packaging: 7-inch plastic tape-and-reel with 3000 units per reel - a standard logistics format for automated SMT placement systems handling the SMP30-M3/84A.
SMP30-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 7.5A
- 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)
SMP30-M3/84A FAQ
1.How can I place an order for SMP30-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP30-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 SMP30-M3/84A reliable?
The price and inventory of SMP30-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 SMP30-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP30-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP30-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP30-M3/84A?
SMP30-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP30-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 SMP30-M3/84A?
For technical support, including SMP30-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP30-M3/84A requirements.
6.How does Aetrix verify that SMP30-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP30-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 SMP30-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP30-M3/84A?
All SMP30-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP30-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 SMP30-M3/84A part is unused and in its original packaging.
Return procedure for SMP30-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP30-M3/84A Tags
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