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Vishay General Semiconductor - Diodes Division SMPC14A-M3/87A
- Part No.:
- SMPC14A-M3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC14A-M3/87A.pdf
- Description:
- TVS DIODE 14VWM 23.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,726
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Product details
Overview
SMPC14A-M3/87A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for clamping transient overvoltages on power and signal lines. It features a 14.0 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), 23.2 V maximum clamping voltage (VC) at 64.7 A peak pulse current, and 1500 W peak pulse power (10/1000 μs). It is used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics against inductive switching transients.
For engineers reviewing the SMPC14A-M3/87A datasheet, SMPC14A-M3/87A pinout, SMPC14A-M3/87A application, or SMPC14A-M3/87A equivalent, key selection criteria include unidirectional polarity, 1.1 mm profile height, MSL Level 1 moisture sensitivity, halogen-free RoHS-compliant construction, and AEC-Q101 qualification eligibility via HM3 suffix variants.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its low incremental surge resistance and fast response time enable effective suppression of transient energy from inductive load switching and ESD events. The dual-anode configuration (SMPCxxA series) supports high-current surge handling with symmetrical thermal path design.
The SMPC14A-M3/87A is rated for 150 °C maximum junction temperature and exhibits 85–100 °C/W junction-to-ambient thermal resistance on FR4 PCB with 2 oz copper. Its 1.25 W steady-state power dissipation and derating curve (Fig. 2) define continuous operating limits under ambient temperature variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14.0 V - Maximum reverse stand-off voltage before significant leakage; defines safe operating threshold for protected circuitry. |
| VBR (min/max) | 15.6 V / 17.2 V - Breakdown occurs within this range at 1.0 mA test current; ensures reliable turn-on margin above VWM. |
| VC @ IPPM | 23.2 V at 64.7 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capability; defines transient energy absorption capacity per IEC 61000-4-5. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design boundary for PCB layout and power cycling. |
| Package | SMPC (TO-277A) - Surface-mount 3-terminal package with 1.1 mm typical height; optimized for automated placement and space-constrained designs. |
| Polarity | Unidirectional - Cathode-marked device; conducts only during negative transients relative to anode terminals. |
Pinout & Package
SMPC14A-M3/87A uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking, matte tin-plated leads, and UL 94 V-0 molding compound. Dimensions conform to JEDEC TO-277A standard (0.189" × 0.134" × 0.047", 4.80 mm × 3.40 mm × 1.20 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry terminal | Connected to protected line; forms one half of parallel anode structure for balanced surge current sharing. |
| Anode 2 | Secondary current entry terminal | Electrically tied to Anode 1 internally; enables dual-pad layout for improved thermal conduction and current spreading. |
| Cathode | Clamping output terminal | Marked by band; connects to ground or low-impedance return path; carries full surge current during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 1.1 mm typical height - Enables use in ultra-thin consumer and automotive modules where Z-height is constrained. |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast-rising transients (<1 ns rise time), critical for protecting sensitive CMOS inputs. |
| MSL Level 1 rating | Compatible with standard reflow profiles up to 260 °C peak - Eliminates pre-bake requirements and simplifies SMT assembly. |
| Halogen-free & RoHS-compliant | M3 suffix indicates industrial-grade compliance - Meets environmental regulations for global commercial and industrial deployments. |
| Excellent clamping capability | 23.2 V clamping at 64.7 A - Limits voltage stress on 12 V rail systems to <2× nominal, preserving MOSFET and controller reliability. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in body control modules from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps transients to ≤23.2 V, preventing damage to 36 V-rated input stages while maintaining system uptime. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in PLC I/O modules from EFT and surge coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS on 4–20 mA loop or 0–10 V analog output traces. Use Value: Sub-1 ns response time suppresses 4 kV EFT bursts without distorting slow-varying analog signals. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeding Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side controllers from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-side TVS on 12 V/24 V DC bus feeding USB-PD or display subsystems. Use Value: 1500 W PPPM rating absorbs multiple 10/1000 μs surges without degradation, extending adapter field life. |
Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) from induced transients on 48 V DC feed lines. IC Role / Device Role / Timing Role: Unidirectional clamp on powered device (PD) input, referenced to local ground. Use Value: 14.0 V VWM aligns with IEEE 802.3af/at hold-up voltage margins, ensuring no false triggering during brownouts. |
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), 1.5 mm height, 400 W PPPM, same VWM/VBR range | Lower power rating; suitable for lower-energy transients or cost-sensitive non-automotive designs | Select when board space allows larger footprint and surge energy is ≤400 W. |
| SMCJ14A (Littelfuse) | SMC package (DO-214AB), 2.6 mm height, 1500 W PPPM, identical VWM/VBR specs | Higher profile and thermal resistance (RθJA ≈ 120 °C/W); requires larger copper area for thermal management | Choose if existing SMC footprint is standardized and 1.1 mm height constraint does not apply. |
Compared with SMAJ14A-E3/5A and SMCJ14A, the SMPC14A-M3/87A delivers identical clamping performance in a 1.1 mm profile with superior thermal efficiency (RθJA ≤100 °C/W), making it optimal for space- and thermally constrained automotive and portable industrial designs.
Availability
SMPC14A-M3/87A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeding circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMPC14A-M3/87A 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 protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMPC series was developed for high-power, low-profile transient suppression in next-generation automotive ECUs and industrial controllers where board space and thermal performance are critical constraints.
FAQ
What is the polarity configuration of SMPC14A-M3/87A?
The SMPC14A-M3/87A is a unidirectional TVS diode with cathode-marked polarity. The band denotes the cathode terminal, and the two anode terminals (Anode 1 and Anode 2) are internally connected. This configuration allows it to clamp only negative-going transients relative to the anode side, making it ideal for DC power line protection where polarity is fixed.
Does SMPC14A-M3/87A meet AEC-Q101 qualification?
No - SMPC14A-M3/87A carries the M3 suffix, indicating industrial-grade halogen-free and RoHS-compliant construction. AEC-Q101 qualification applies only to HM3-suffix variants (e.g., SMPC14AHM3/87A) and is limited to SMPC22AN through SMPC85AN devices per the datasheet. SMPC14A-M3/87A is not AEC-Q101 qualified.
What is the meaning of the /87A package code in SMPC14A-M3/87A?
The /87A suffix specifies the reel packaging format: 13-inch diameter plastic tape and reel containing 6500 units. It does not affect electrical or mechanical characteristics. The base part SMPC14A-M3 is identical across /86A (1500-unit 7-inch reel) and /87A configurations - only packaging and quantity differ.
How does the dual-anode structure of SMPC14A-M3/87A improve performance?
The dual-anode (Anode 1 + Anode 2) structure in SMPC14A-M3/87A provides parallel current paths during surge events, reducing effective surge resistance and improving thermal distribution across the die. This design lowers localized heating and enhances reliability under repetitive 10/1000 μs transients compared to single-anode equivalents like SMAJ14A.
Can SMPC14A-M3/87A be used in bidirectional applications?
No - SMPC14A-M3/87A is strictly unidirectional. For bidirectional transient suppression, Vishay offers the SMPC14CA variant (not SMPC14A-M3/87A), which features symmetrical breakdown in both polarities. Using SMPC14A-M3/87A in reverse-biased configurations risks permanent failure due to lack of forward conduction capability.
SMPC14A-M3/87A 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-M3/87A FAQ
1.How can I place an order for SMPC14A-M3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC14A-M3/87A 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-M3/87A reliable?
The price and inventory of SMPC14A-M3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC14A-M3/87A is usually 5 days.
3.What payment methods are accepted for SMPC14A-M3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC14A-M3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC14A-M3/87A?
SMPC14A-M3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC14A-M3/87A 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-M3/87A?
For technical support, including SMPC14A-M3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC14A-M3/87A requirements.
6.How does Aetrix verify that SMPC14A-M3/87A is sourced from the original manufacturer or authorized distributors?
All SMPC14A-M3/87A 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-M3/87A meets industry standards.
7.What is the process for return or replacement of SMPC14A-M3/87A?
All SMPC14A-M3/87A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC14A-M3/87A, 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-M3/87A part is unused and in its original packaging.
Return procedure for SMPC14A-M3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC14A-M3/87A Tags
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