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Vishay General Semiconductor - Diodes Division SMP14A-M3/84A
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- Part No.:
- SMP14A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP14A-M3/84A.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:970
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Product details
Overview
SMP14A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, featuring a 14 V standoff voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 17.2 A peak pulse current (IPPM), and 23.2 V clamping voltage (VC). It protects MOSFETs and ICs against inductive switching transients in industrial power supplies.
For engineers reviewing the SMP14A-M3/84A datasheet, SMP14A-M3/84A pinout, SMP14A-M3/84A application, or SMP14A-M3/84A equivalent, key selection criteria include clamping voltage margin relative to protected device VDS(max), thermal resistance (RθJA = 250 °C/W), unidirectional polarity, MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamp, conducting only during reverse overvoltage events above its breakdown threshold. Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients induced by relay or solenoid switching.
The SMP14A-M3/84A is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2. It uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum reverse operating voltage before conduction; sets upper limit for normal circuit operation without leakage-induced stress. |
| VBR min/max | 15.6 V / 17.2 V - Measured at 1 mA test current; defines guaranteed turn-on window for reliable transient detection. |
| VC @ IPPM | 23.2 V - Clamping voltage at 17.2 A peak pulse; determines maximum voltage seen by protected downstream components. |
| PPPM | 400 W - Peak pulse power handling (10/1000 μs waveform); quantifies energy absorption capability per transient event. |
| RθJA | 250 °C/W - Junction-to-ambient thermal resistance; dictates required PCB copper area and airflow for sustained surge duty. |
| IFSM | 40 A - Non-repetitive forward surge current (10 ms half-sine); supports robustness against accidental forward polarity surges. |
Pinout & Package
Package: SMP (DO-220AA), ultra-low-profile surface-mount case with 1.0 mm typical height, UL 94 V-0 molding compound, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; must be routed with minimal inductance for effective clamping. |
| Cathode | Protected line connection / transient sensing node | Connected to the line being protected (e.g., MOSFET drain or IC supply rail); color band identifies this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients from 24 V industrial solenoids without derating beyond standard PCB layouts. |
| MSL Level 1, 260 °C reflow compatible | Supports single-pass lead-free reflow assembly without preconditioning or special handling requirements. |
| Low profile (1.0 mm typical height) | Allows use in space-constrained applications such as portable medical sensors and slim power adapters. |
| Halogen-free, RoHS-compliant, industrial grade | Meets environmental compliance for global industrial deployments and ensures long-term reliability under thermal cycling. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of N-channel MOSFET gate drivers against flyback voltage from 24 V DC contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET drain and ground to clamp inductive kick. Use Value: Limits drain-source voltage to ≤23.2 V during 17.2 A transients, preventing avalanche failure of 30 V-rated MOSFETs. |
Use Scenario: Surge suppression on LIN bus lines exposed to load dump and ESD in door module ECUs. IC Role / Device Role / Timing Role: Standoff-clamp TVS on signal line with 14 V VWM matching LIN physical layer operating range. Use Value: Maintains signal integrity below 23.2 V clamping threshold while drawing <1 μA leakage at 14 V. |
| Telecom Power Supply Inputs | Consumer Appliance Control Boards |
Use Scenario: Input rail protection for 12 V DC-DC converters subjected to IEC 61000-4-5 surge testing. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side output to absorb coupled surges before regulation stage. Use Value: Withstands 400 W pulses without degradation, verified across 1000+ surge cycles per JEDEC JESD22-A114. |
Use Scenario: Overvoltage safeguard for microcontroller I/O pins connected to external pushbuttons with long traces. IC Role / Device Role / Timing Role: Point-of-use unidirectional clamp on 5 V or 3.3 V logic rails. Use Value: Fast response (<1 ns) and low capacitance (<100 pF at 1 MHz) prevent signal distortion on 10 kHz–1 MHz control signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP14A-M3/85A | Same electrical specs; differs only in packaging - 10,000-unit 13" tape-and-reel vs. 3,000-unit 7" reel. | No functional difference; selected based on production volume and SMT line feed configuration. | Choose SMP14A-M3/85A for high-volume automated assembly requiring longer reel lengths and reduced changeover frequency. |
| SMBJ14A | Higher RθJA (300 °C/W), larger SMB (DO-214AA) package (2.6 mm height), same VWM/VBR/VC ratings. | Less suitable for ultra-thin designs; requires larger PCB footprint and more thermal pad area for equivalent power handling. | Choose SMBJ14A only when existing layout accommodates SMB footprint and higher thermal resistance is acceptable. |
Compared with SMP14A-M3/84A, the SMP14A-M3/85A offers identical protection performance in a higher-volume packaging format, while SMBJ14A trades compactness and thermal efficiency for legacy footprint compatibility - making SMP14A-M3/84A optimal for new designs prioritizing board space and thermal performance.
Availability
SMP14A-M3/84A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and telecom power supply inputs requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for SMP14A-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, power density, and AEC-Q200 qualification.
The SMP series was engineered for high-density, low-profile transient suppression in space-constrained industrial and automotive systems, delivering 400 W pulse capability in the smallest standardized SMD TVS package.
FAQ
What is the clamping voltage of SMP14A-M3/84A at its rated peak pulse current?
The SMP14A-M3/84A has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPPM) of 17.2 A using a 10/1000 μs waveform. This value is measured under standardized test conditions with 5.0 mm × 5.0 mm copper pads per terminal and represents the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMP14A-M3/84A maintains this clamping performance across its full operating temperature range.
Is SMP14A-M3/84A suitable for bidirectional transient protection?
No, SMP14A-M3/84A is a unidirectional TVS diode, designed to clamp only reverse-polarity transients. Its polarity is marked by a cathode band, and it conducts when the cathode is driven positive relative to the anode. For bidirectional protection, a dedicated bidirectional part such as SMBJ14CA or SMP14CA would be required. Using SMP14A-M3/84A in bidirectional configurations risks forward conduction damage during positive transients.
What does the "M3/84A" suffix indicate in SMP14A-M3/84A?
The "M3" suffix denotes halogen-free, RoHS-compliant construction meeting JESD 201 Class 2 whisker resistance, while "84A" specifies the packaging format: 7-inch diameter plastic tape-and-reel containing 3,000 units. This ordering code distinguishes SMP14A-M3/84A from variants like SMP14A-M3/85A (10,000 units on 13-inch reel) and confirms industrial-grade qualification per Vishay's material categorization standards.
How does the thermal resistance of SMP14A-M3/84A affect PCB layout?
SMP14A-M3/84A has a typical junction-to-ambient thermal resistance (RθJA) of 250 °C/W, meaning each watt of dissipated surge energy raises junction temperature by 250 °C above ambient - unless mitigated by PCB copper. To maintain safe operation, designers must use minimum 5.0 mm × 5.0 mm copper pads per terminal, avoid thermal reliefs, and consider internal ground planes. Without adequate copper, repeated surges may exceed the 150 °C TJ(max) limit and degrade long-term reliability of the SMP14A-M3/84A.
Can SMP14A-M3/84A replace SMAJ14A in an existing design?
SMP14A-M3/84A is not a direct drop-in replacement for SMAJ14A due to different packages: SMP (DO-220AA) vs. SMA (DO-214AC). While both share identical VWM (14 V), VBR (15.6–17.2 V), and VC (23.2 V), the SMP package is significantly smaller (1.0 mm height vs. 2.2 mm) and has different pad dimensions and thermal characteristics. Layout redesign is required to accommodate the smaller footprint and optimized thermal pad geometry of the SMP14A-M3/84A.
SMP14A-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- 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)
SMP14A-M3/84A FAQ
1.How can I place an order for SMP14A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP14A-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 SMP14A-M3/84A reliable?
The price and inventory of SMP14A-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 SMP14A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP14A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP14A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP14A-M3/84A?
SMP14A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP14A-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 SMP14A-M3/84A?
For technical support, including SMP14A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP14A-M3/84A requirements.
6.How does Aetrix verify that SMP14A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP14A-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 SMP14A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP14A-M3/84A?
All SMP14A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP14A-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 SMP14A-M3/84A part is unused and in its original packaging.
Return procedure for SMP14A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP14A-M3/84A Tags
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