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Vishay General Semiconductor - Diodes Division SMP15-M3/84A
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- Part No.:
- SMP15-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP15-M3/84A.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,974
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Product details
Overview
SMP15-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 15 V standoff voltage (VWM), 16.7–18.5 V breakdown range (VBR), 400 W peak pulse power (10/1000 μs), 16.4 A peak pulse current (IPPM), and clamps to 24.4 V at rated surge. It protects MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMP15-M3/84A datasheet, SMP15-M3/84A pinout, SMP15-M3/84A application, or SMP15-M3/84A equivalent, key selection criteria include unidirectional polarity, DO-220AA (SMP) package compatibility with automated placement, 1.0 mm profile height, MSL Level 1 rating, and verified clamping performance under 10/1000 μs surge conditions.
Technical Context
The SMP15-M3/84A operates as a silicon avalanche diode optimized for fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.45). Its unidirectional configuration enables use in DC-biased circuits where reverse conduction must be blocked until breakdown threshold is exceeded.
Thermal design relies on low junction-to-lead resistance (RθJL = 50 °C/W) and requires 5.0 mm × 5.0 mm copper pads per terminal per JEDEC standards. It sustains 40 A non-repetitive forward surge (IFSM) and operates from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR min/max | 16.7 V / 18.5 V - Breakdown occurs within this range at 1.0 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 24.4 V - Clamped voltage during 16.4 A 10/1000 μs surge; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 400 W - Peak pulse power handling capability with standard 10/1000 μs waveform; validates robustness against common surge events. |
| ID @ VWM | 1.0 μA - Reverse leakage at rated standoff voltage; critical for low-power sensor and battery-backed applications. |
| Package | DO-220AA (SMP) - 2-terminal SMD outline with 1.0 mm typical height; supports high-density PCB layout and reflow compatibility. |
| Polarity | Unidirectional - Cathode marked by band; blocks reverse current until breakdown, enabling DC rail protection without forward conduction loss. |
Pinout & Package
DO-220AA (SMP) package: 2-terminal surface-mount device with cathode indicated by color band; terminals are matte tin-plated for J-STD-002 solderability and JESD 22-B102 compliance; meets MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected circuit | Accepts surge current during clamping; must be routed to ground or return path with minimal inductance. |
| Cathode | Current exit point in forward bias; marked by color band; connected to higher-potential side | Defines polarity orientation; connects to line/rail being protected; determines direction of clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Validated surge energy absorption capacity for IEC 61000-4-5 Level 3/4 compliance in industrial environments. |
| 1.0 mm typical height | Enables ultra-low-profile board stacking and compatibility with tight mechanical envelopes in telecom modules and portable equipment. |
| MSL Level 1 rating | Supports single-pass lead-free reflow without baking; eliminates moisture sensitivity handling overhead in high-volume SMT lines. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, relay bounce), improving protection fidelity for sensitive analog inputs. |
| Halogen-free & RoHS-compliant (M3 suffix) | Fulfills environmental compliance requirements for CE-marked industrial and consumer end equipment without material substitution risk. |
Applications
| Industrial Motor Drives | Telecom Line Interface Cards |
|---|---|
Use Scenario: Protection of gate drivers and bootstrap circuits against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate-source nodes to clamp voltage spikes below MOSFET VDS(max) and driver IC absolute maximum ratings. Use Value: Prevents cumulative degradation and catastrophic failure of power semiconductors during repeated motor start/stop cycles. |
Use Scenario: Surge suppression on POTS or xDSL line interface transformers exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary-level clamping device mounted at transformer secondary side to limit differential-mode overvoltage entering codec or line driver ICs. Use Value: Maintains signal integrity and prevents latch-up in analog front-end components during GR-1089-CORE Level 3 surge events. |
| Automotive Body Control Modules | Consumer Sensor Signal Conditioning |
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and ISO 7637-2 Pulse 1/2a transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS installed between LIN data line and ground to shunt transient energy while preserving DC bias and signal swing. Use Value: Ensures communication continuity and avoids false wake-up or reset events during vehicle electrical system disturbances. |
Use Scenario: ESD and EFT protection for analog outputs of MEMS accelerometers, temperature sensors, and Hall-effect position sensors in smart home devices. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA) TVS placed at sensor output pin to suppress ±8 kV contact ESD per IEC 61000-4-2 without loading the signal path. Use Value: Preserves measurement accuracy and long-term reliability in battery-powered edge nodes with limited power budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP15A-M3/84A | Same electrical specs and DO-220AA package; identical marking code BM and VBR range (16.7–18.5 V); differs only in ordering suffix format (no hyphen vs. hyphenated) | No functional difference; both meet same Vishay specification 88481 Rev. 11-Dec-12 | Select SMP15A-M3/84A if legacy BOM references non-hyphenated nomenclature; otherwise SMP15-M3/84A is preferred per current Vishay documentation. |
| SMBJ15A | DO-214AA (SMB) package (2.59 mm height); same 15 V VWM but higher VC (24.4 V → 24.4 V), lower PPPM (600 W), and larger footprint | Requires PCB pad redesign; better thermal dissipation but incompatible with ultra-low-profile layouts | Choose SMBJ15A only when higher surge margin is required and board height allows ≥2.5 mm clearance. |
Compared with SMP15A-M3/84A, the SMP15-M3/84A offers identical protection performance in the same compact DO-220AA package, while SMBJ15A trades height for higher power rating and different thermal behavior-making SMP15-M3/84A optimal for space-constrained industrial and telecom designs.
Availability
SMP15-M3/84A is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interface cards, automotive body control modules, and consumer sensor signal conditioning requiring stable component supply and full traceability.
Supply support for SMP15-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, precision, and application-specific optimization.
The SMP series was engineered for high-density, automated SMT deployment in harsh electromagnetic environments-targeting industrial automation, telecommunications infrastructure, and automotive subsystems demanding repeatable transient immunity.
FAQ
What is the maximum clamping voltage of the SMP15-M3/84A under a 10/1000 μs surge?
The SMP15-M3/84A clamps to a maximum of 24.4 V when subjected to its rated 16.4 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured at the device terminals under standardized test conditions per ANSI/IEEE C62.35 and is guaranteed across the full operating temperature range. The clamping voltage directly determines the peak stress seen by downstream components, making it a critical parameter for system-level surge margin analysis. For the SMP15-M3/84A, this clamping performance is achieved with minimal voltage overshoot due to low incremental surge resistance.
Is the SMP15-M3/84A compatible with lead-free reflow soldering processes?
Yes, the SMP15-M3/84A is fully compatible with lead-free reflow soldering and meets MSL Level 1 per J-STD-020, with a maximum peak temperature tolerance of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 for solderability and whisker resistance (Class 1A). No pre-baking is required prior to reflow, simplifying manufacturing flow for high-volume SMT assembly. The DO-220AA package's thermal mass and Vishay's molding compound formulation ensure reliable joint formation without delamination or voiding under standard IPC-7095-compliant profiles.
How does the SMP15-M3/84A differ from the SMP15A-M3/84A?
The SMP15-M3/84A and SMP15A-M3/84A are functionally identical parts sharing the same electrical specifications (VWM = 15 V, VBR = 16.7–18.5 V, VC = 24.4 V), DO-220AA package, marking code BM, and Vishay document 88481 Rev. 11-Dec-12. The only difference lies in nomenclature formatting: SMP15-M3/84A uses a hyphenated base part number, while SMP15A-M3/84A omits the hyphen. Both are manufactured to the same quality and reliability standards, and either may be used interchangeably in new designs or BOM updates.
What is the reverse leakage current of the SMP15-M3/84A at its rated standoff voltage?
The SMP15-M3/84A exhibits a maximum reverse leakage current (ID) of 1.0 μA when biased at its 15 V standoff voltage (VWM) and tested at 25 °C ambient temperature. This low leakage ensures minimal power drain in always-on sensor interfaces and battery-backed systems. Leakage remains within specification up to +125 °C junction temperature, though it increases exponentially above that point per the device's thermal characteristics. For precision analog signal paths, this leakage level avoids measurable offset or gain error in typical 10 kΩ–1 MΩ source impedances.
Can the SMP15-M3/84A be used in bidirectional transient protection applications?
No, the SMP15-M3/84A is strictly unidirectional and must not be used for bidirectional protection. Its internal structure provides avalanche breakdown only in reverse bias; forward conduction begins at ~0.7 V, offering no clamping in the forward direction. For bidirectional surge suppression (e.g., AC lines or data buses with no defined polarity), a dedicated bidirectional TVS such as the SMBJ15CA or SMAJ15CA is required. Using SMP15-M3/84A in bidirectional configurations risks permanent damage during positive-going transients exceeding its forward voltage rating.
SMP15-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 14.9A
- 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)
SMP15-M3/84A FAQ
1.How can I place an order for SMP15-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP15-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 SMP15-M3/84A reliable?
The price and inventory of SMP15-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 SMP15-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP15-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP15-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP15-M3/84A?
SMP15-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP15-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 SMP15-M3/84A?
For technical support, including SMP15-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP15-M3/84A requirements.
6.How does Aetrix verify that SMP15-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP15-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 SMP15-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP15-M3/84A?
All SMP15-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP15-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 SMP15-M3/84A part is unused and in its original packaging.
Return procedure for SMP15-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP15-M3/84A Tags
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