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Vishay General Semiconductor - Diodes Division SMPC14A-M3/86A
- Part No.:
- SMPC14A-M3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC14A-M3/86A.pdf
- Description:
- TVS DIODE 14VWM 23.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,663
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Product details
Overview
SMPC14A-M3/86A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for clamping inductive-switching transients on 14 V nominal DC lines. It features a 15.6–17.2 V breakdown voltage (VBR), 14.0 V stand-off voltage (VWM), 23.2 V maximum clamping voltage (VC) at 1.0 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and sensor signal lines in automotive and industrial control modules.
For engineers reviewing the SMPC14A-M3/86A datasheet, SMPC14A-M3/86A pinout, SMPC14A-M3/86A application, or SMPC14A-M3/86A equivalent, this device delivers verified unidirectional surge suppression with MSL Level 1 reflow compatibility, halogen-free RoHS-compliant construction, and validated thermal performance up to 150 °C junction temperature - critical for high-reliability board-level ESD and load-dump protection design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 14.0 V, it avalanches at VBR = 15.6–17.2 V (tested at 1.0 mA), limiting transient energy via low incremental surge resistance and fast response time. Its dual-anode/single-cathode SMPC (TO-277A) configuration enables symmetrical PCB layout and efficient heat dissipation through the cathode tab.
Thermal design is supported by RθJA = 85–100 °C/W (FR4, 2 oz copper) and RθJM = 2.5–3.0 °C/W, enabling sustained 1.25 W power dissipation at 25 °C ambient. The device meets JESD201 Class 2 whisker resistance and is rated for -55 °C to +150 °C operating junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.6 V / 17.2 V - defines precise avalanche initiation range for reliable overvoltage triggering without false trips |
| VWM | 14.0 V - maximum continuous reverse operating voltage before conduction begins; matches 12 V automotive systems with margin |
| VC @ IPPM | 23.2 V at 1.0 A - clamping voltage under standardized 10/1000 μs surge; ensures downstream ICs remain below absolute max ratings |
| PPPM | 1500 W - peak pulse power handling capacity; supports high-energy transients like ISO 7637-2 Pulse 1 & 2a |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), with cathode band marking and matte tin-plated leads |
| Compliance | AEC-Q101 qualified not applicable (base P/N-M3 suffix is industrial grade; HM3 required for automotive qualification) |
Pinout & Package
SMPC14A-M3/86A uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with dual anodes and single cathode, molded in UL 94 V-0 compound. Cathode is marked by a band on the top surface. Leads are matte tin-plated and solderable per J-STD-002/JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry path during reverse-biased clamping | Connected to protected line; shares current path with Anode 2 for lower effective dynamic resistance |
| Anode 2 | Secondary current entry path during reverse-biased clamping | Parallel anode structure reduces total surge impedance and improves clamping consistency across pulses |
| Cathode | Common current exit node and thermal interface | Mounted directly to PCB copper pour for enhanced heat transfer; polarity reference point (band denotes cathode) |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm typical height) | Enables use in space-constrained modules such as engine control units and compact sensor nodes without height interference |
| Unidirectional clamping architecture | Provides precise reverse-voltage protection only - avoids forward conduction issues in DC-biased signal or power rails |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic interfaces |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling - reduces manufacturing complexity |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental compliance requirements for industrial and consumer electronics without compromising surge robustness |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
|
Use Scenario: Protection of 12 V supply rail against load-dump transients (ISO 7637-2 Pulse 5a) during alternator regulation failure. IC Role / Device Role / Timing Role: Shunt TVS placed at ECU main input, clamping surges up to 1500 W before they reach DC/DC converters and microcontrollers. Use Value: Prevents latch-up or permanent damage to 14 V-rated power management ICs by limiting clamped voltage to 23.2 V with sub-1 ns response. |
Use Scenario: Safeguarding 24 V digital input channels from inductive kickback when solenoids or relays de-energize. IC Role / Device Role / Timing Role: Mounted directly at terminal block entry point to absorb >1 kV/500 A transients before reaching optocoupler input stages. Use Value: Maintains signal integrity by holding clamp voltage below 25 V, ensuring optocoupler LED remains within safe forward voltage window. |
| Consumer Appliance Motor Drive Board | Telecom Base Station Power Interface |
|
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Placed across motor terminals and MCU GPIO lines to prevent coupling of >100 V spikes into logic circuitry. Use Value: Enables direct connection of motor drivers to microcontroller pins without external RC snubbers, reducing BOM count and board area. |
Use Scenario: Protecting 48 V intermediate bus inputs in remote radio units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line defense in multi-stage protection scheme, absorbing bulk surge energy before downstream TVS arrays and GDTs. Use Value: Delivers 1500 W pulse handling in compact SMPC footprint - critical where enclosure depth limits heatsink volume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-E3/5A (Vishay) | SMA package (DO-214AC); lower PPPM (400 W); VC = 23.2 V at 17.1 A | Higher peak current capability but larger footprint and higher thermal resistance (RθJA ≈ 150 °C/W) | Select SMAJ14A-E3/5A only if board layout allows larger package and system requires higher IPPM tolerance with relaxed thermal constraints. |
| 1.5KE15A (ON Semiconductor) | Through-hole DO-201 package; 1500 W rating; VBR = 16.7–18.5 V; VC = 24.4 V at 61.5 A | Not surface-mountable; incompatible with automated SMT assembly; requires wave solder or hand-soldering | Choose 1.5KE15A only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMAJ14A-E3/5A and 1.5KE15A, SMPC14A-M3/86A provides identical clamping voltage and superior thermal performance in a low-profile SMT package - making it optimal for high-density, high-reliability automotive and industrial PCBs requiring automated assembly and MSL-1 compliance.
Availability
SMPC14A-M3/86A is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC input modules, and telecom power interface protection requiring stable component supply and full traceability.
Supply support for SMPC14A-M3/86A 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, efficiency, and application-specific optimization.
The SMPC series was developed to deliver high-power transient suppression in ultra-low-profile SMT packages for next-generation automotive and industrial electronics where space, thermal performance, and reflow compatibility are critical.
FAQ
What is the exact breakdown voltage range for SMPC14A-M3/86A?
The SMPC14A-M3/86A has a specified breakdown voltage (VBR) range of 15.6 V to 17.2 V, measured at 1.0 mA test current per the Vishay datasheet (Document Number: 89116). This range ensures consistent avalanche initiation across production lots while maintaining margin above its 14.0 V stand-off voltage.
Is SMPC14A-M3/86A AEC-Q101 qualified?
No, SMPC14A-M3/86A is not AEC-Q101 qualified. It carries the industrial-grade M3 suffix. For automotive qualification, Vishay offers the HM3 suffix variant (e.g., SMPC14AHM3), which is explicitly AEC-Q101 qualified and designated with ordering code base P/NHM3 per the same datasheet.
What does the /86A package code indicate for SMPC14A-M3/86A?
The /86A suffix specifies the reel packaging format: 7-inch diameter plastic tape and reel, with a base quantity of 1500 units per reel. This is confirmed in the Ordering Information table of the Vishay SMPC datasheet (Rev. 17-Sep-2021), where /86A is defined for SMPC5.0A-M3 to SMPC36A-M3 variants.
Can SMPC14A-M3/86A be used in bidirectional configurations?
No, SMPC14A-M3/86A is strictly unidirectional. Its internal structure consists of dual anodes and a single cathode, optimized for reverse-biased clamping only. Bidirectional protection requires two devices in series opposition or a dedicated bidirectional TVS such as SMPC14CA-M3/86A (not offered in this family).
What is the maximum clamping voltage of SMPC14A-M3/86A under surge conditions?
The maximum clamping voltage (VC) of SMPC14A-M3/86A is 23.2 V, measured at 1.0 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed per the Electrical Characteristics table in the Vishay datasheet and defines the upper voltage limit imposed on protected circuits during transient events.
SMPC14A-M3/86A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- 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):
- 64.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- TO-277A (SMPC)
SMPC14A-M3/86A FAQ
1.How can I place an order for SMPC14A-M3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC14A-M3/86A 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 SMPC14A-M3/86A reliable?
The price and inventory of SMPC14A-M3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC14A-M3/86A is usually 5 days.
3.What payment methods are accepted for SMPC14A-M3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC14A-M3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC14A-M3/86A?
SMPC14A-M3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC14A-M3/86A 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 SMPC14A-M3/86A?
For technical support, including SMPC14A-M3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC14A-M3/86A requirements.
6.How does Aetrix verify that SMPC14A-M3/86A is sourced from the original manufacturer or authorized distributors?
All SMPC14A-M3/86A 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 SMPC14A-M3/86A meets industry standards.
7.What is the process for return or replacement of SMPC14A-M3/86A?
All SMPC14A-M3/86A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC14A-M3/86A, 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 SMPC14A-M3/86A part is unused and in its original packaging.
Return procedure for SMPC14A-M3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC14A-M3/86A Tags
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