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Vishay General Semiconductor - Diodes Division SMP14-M3/84A
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- Part No.:
- SMP14-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP14-M3/84A.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,284
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Product details
Overview
SMP14-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 signal lines and power rails. It features a 14 V stand-off 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 clamps to ≤23.2 V at rated surge. It protects MOSFETs, ICs, and sensor interfaces in industrial and telecom equipment.
For engineers reviewing the SMP14-M3/84A datasheet, SMP14-M3/84A pinout, SMP14-M3/84A application, or SMP14-M3/84A equivalent, this page delivers verified electrical specs, DO-220AA package dimensions, clamping behavior under 10/1000 μs transients, thermal resistance data, and validated alternative parts for ESD/surge protection design-in.
Technical Context
The SMP14-M3/84A operates as a unidirectional avalanche diode with sharp reverse-breakdown onset at 15.6–17.2 V, enabling precise overvoltage clamping before downstream components reach destructive thresholds. Its low 2.5 V forward voltage at 25 A supports use in DC power rail protection without excessive conduction loss.
Thermal performance is defined by RθJL = 50 °C/W (junction-to-lead) and RθJA = 250 °C/W (junction-to-ambient), requiring PCB copper pad areas of 5.0 mm × 5.0 mm per terminal for rated 400 W pulse handling. It meets J-STD-020 MSL Level 1 and JESD 201 Class 1A whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 14 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 15.6–17.2 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering during fast transients |
| VC (Clamping Voltage) | ≤23.2 V at IPPM = 17.2 A - Peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM (Peak Pulse Power) | 400 W (10/1000 μs) - Sustained surge energy handling capability on specified PCB layout |
| IFSM (Surge Current) | 40 A (10 ms half-sine) - Robustness against repetitive or longer-duration overcurrent events |
| TJ max. | 150 °C - Maximum junction temperature defining safe operating area under pulsed and steady-state conditions |
| RθJL | 50 °C/W - Enables accurate thermal modeling when mounted to copper leads or heatsinked pads |
Pinout & Package
Package: DO-220AA (SMP), surface-mount, halogen-free, RoHS-compliant, 1.0 mm typical height, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-banded end is negative) | Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Avalanche clamping node (marked with band) | Connected to protected line (e.g., signal or supply rail); conducts when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on properly laid out PCBs |
| Very fast response time | Sub-nanosecond turn-on ensures clamping occurs before sensitive ICs experience overstress |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving clamping precision |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without preconditioning or special handling |
| DO-220AA footprint | 0.142" × 0.086" (3.61 mm × 2.18 mm) outline enables high-density placement in space-constrained modules |
Applications
| Industrial PLC I/O Protection | Telecom Line Interface |
|---|---|
Use Scenario: Protecting 24 V DC digital input channels in programmable logic controllers from inductive kickback and field wiring surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input terminal and ground to clamp transients before reaching optocoupler or MCU GPIO. Use Value: Limits voltage to ≤23.2 V during 17.2 A surges, preserving isolation barrier integrity and preventing latch-up in upstream logic. |
Use Scenario: Shielding RS-485 transceiver pins in base station backhaul equipment from lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on A/B differential lines referenced to local ground plane. Use Value: Maintains signal integrity by clamping within 1 ns while surviving repeated 400 W pulses per IEC 61000-4-5. |
| Automotive Body Control Module | Consumer Sensor Hub |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller wake-up inputs against load dump and alternator ripple in vehicle body electronics. IC Role / Device Role / Timing Role: Unidirectional TVS on LIN line tied to battery-ground reference, absorbing 12 V system transients. Use Value: Withstands 150 °C junction temperature and 40 A IFSM, meeting AEC-Q200 stress requirements for under-hood deployment. |
Use Scenario: Protecting I²C and analog output lines of environmental sensors (e.g., humidity, pressure) in smart home hubs from ESD and board-level coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector or sensor IC pin to minimize stub length. Use Value: 1.0 μA max leakage at 14 V avoids signal offset errors; 1.0 mm profile fits beneath compact shield cans. |
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-M3/84A | Same electrical specs and DO-220AA package; identical marking code BK and VBR range (15.6–17.2 V) | No functional difference; SMP14-M3/84A and SMP14A-M3/84A are manufacturer-equivalent part numbers per Vishay ordering table | Select SMP14A-M3/84A if BOM requires explicit "A" suffix per internal naming convention |
| SMBJ14A-E3/52 | DO-214AA (SMB) package; 14.4–15.9 V VBR; 1000 W PPPM; higher clamping (≤23.2 V same, but higher IPPM = 43.3 A) | Larger footprint (4.57 mm × 3.94 mm vs. 3.61 mm × 2.18 mm); suited for higher-energy surges where board space allows | Choose SMBJ14A-E3/52 only when 1000 W surge rating is required and PCB layout accommodates larger SMB case |
Compared with SMP14-M3/84A, SMP14A-M3/84A offers identical protection performance in the same compact DO-220AA package, while SMBJ14A-E3/52 trades size for higher pulse power-making the former ideal for miniaturized industrial sensors and the latter better for telecom power feed protection.
Availability
SMP14-M3/84A is available at Aetrix Electronics and suitable for industrial PLC I/O protection, telecom line interface hardening, and automotive body control module surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMP14-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 power MOSFETs with emphasis on reliability and ruggedness.
The SMP series was engineered for high-density, automated SMT deployment in harsh environments-delivering robust transient suppression in ultra-low-profile DO-220AA packages for space-constrained industrial and telecom systems.
FAQ
What is the maximum clamping voltage of the SMP14-M3/84A under rated surge conditions?
The SMP14-M3/84A clamps to a maximum of 23.2 V when subjected to its rated peak pulse current of 17.2 A (10/1000 μs waveform). This value is measured across the device terminals with specified PCB copper pad layout (5.0 mm × 5.0 mm per terminal), ensuring repeatable protection performance in production designs using the SMP14-M3/84A.
Is the SMP14-M3/84A unidirectional or bidirectional, and how is polarity identified?
The SMP14-M3/84A is a unidirectional transient voltage suppressor. Polarity is marked by a color band on the cathode end of the DO-220AA package. During operation, the cathode connects to the line being protected (e.g., signal or supply rail), and the anode connects to ground or the lower-potential reference-ensuring conduction only during positive overvoltage events relative to that reference.
Does the SMP14-M3/84A meet RoHS and halogen-free requirements?
Yes, the SMP14-M3/84A carries the "M3" suffix, indicating it is halogen-free, RoHS-compliant, and commercial-grade per Vishay's material categorization policy. It satisfies JEDEC JS709A for halogen content and Directive 2011/65/EU for hazardous substances, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
What is the thermal resistance from junction to ambient for the SMP14-M3/84A?
The SMP14-M3/84A has a typical junction-to-ambient thermal resistance (RθJA) of 250 °C/W when mounted on standard PCB land patterns (0.2" × 0.2" copper pads per terminal). This value assumes natural convection cooling and is critical for estimating temperature rise during repetitive surge events or elevated ambient conditions in deployed SMP14-M3/84A applications.
Can the SMP14-M3/84A be used in automotive applications?
The SMP14-M3/84A is qualified to operate from –55 °C to +150 °C and meets JESD 201 Class 1A whisker resistance, making it suitable for under-hood automotive body control modules. While not AEC-Q200 certified as a standalone part, its robustness parameters-including 40 A IFSM and 150 °C TJ max-align with common automotive surge protection requirements when validated in system-level testing with the SMP14-M3/84A.
SMP14-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 15.5A
- 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)
SMP14-M3/84A FAQ
1.How can I place an order for SMP14-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP14-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 SMP14-M3/84A reliable?
The price and inventory of SMP14-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 SMP14-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP14-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP14-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP14-M3/84A?
SMP14-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP14-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 SMP14-M3/84A?
For technical support, including SMP14-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP14-M3/84A requirements.
6.How does Aetrix verify that SMP14-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP14-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 SMP14-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP14-M3/84A?
All SMP14-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP14-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 SMP14-M3/84A part is unused and in its original packaging.
Return procedure for SMP14-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP14-M3/84A Tags
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