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Vishay General Semiconductor - Diodes Division SMPC30A-M3/86A
- Part No.:
- SMPC30A-M3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC30A-M3/86A.pdf
- Description:
- TVS DIODE 30VWM 48.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,994
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Product details
Overview
SMPC30A-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 power and signal lines. It features a 30.0 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR), 48.4 V maximum clamping voltage (VC) at 31.0 A peak pulse current, and 1500 W peak pulse power (10/1000 μs). It is widely used to protect MOSFETs and sensor interfaces in industrial motor drives.
For engineers reviewing the SMPC30A-M3/86A datasheet, SMPC30A-M3/86A pinout, SMPC30A-M3/86A application, or SMPC30A-M3/86A equivalent, key selection criteria include unidirectional polarity, 1.1 mm profile for space-constrained PCBs, AEC-Q101 qualification eligibility (via HM3 suffix), MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance.
Technical Context
This device operates as a silicon avalanche diode optimized for fast transient suppression with low incremental surge resistance and sub-nanosecond response time. Its unidirectional configuration enables integration into DC-biased power rails where reverse conduction must be blocked during normal operation.
The SMPC30A-M3/86A uses a dual-anode/single-cathode topology in the SMPC (TO-277A) package - confirmed by Vishay's mechanical drawing and marking code GFK - enabling high-current surge handling while maintaining thermal resistance RθJA ≤ 100 °C/W on FR4 with 2 oz copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 33.3 V / 36.8 V at 1.0 mA - ensures reliable turn-on margin above VWM for robust transient margin |
| VC @ IPPM | 48.4 V at 31.0 A (10/1000 μs) - defines worst-case voltage seen by protected IC during surge |
| PPPM | 1500 W - peak transient energy absorption capability under standardized waveform |
| TJ max | +150 °C - supports operation in under-hood or enclosed industrial environments |
| Package | SMPC (TO-277A) - 3-terminal SMD outline with cathode band marking, 1.1 mm typical height |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; compatible with standard reflow profiles up to 260 °C peak |
Pinout & Package
SMPC30A-M3/86A uses the SMPC (TO-277A) package: a 3-terminal surface-mount outline with dual anodes and single cathode. The cathode is marked by a band on the top surface; terminals are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary anode connection | Connected to positive rail or signal source; forms one half of parallel anode structure for current sharing |
| Anode 2 | Secondary anode connection | Electrically tied to Anode 1 internally; provides mechanical symmetry and thermal path redundancy |
| Cathode | Clamping output terminal | Connected to ground or return path; carries full surge current during transient events |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm) | Enables placement beneath low-clearance shields or in ultra-thin consumer/automotive modules |
| Unidirectional polarity | Prevents reverse leakage in DC-biased applications such as 24 V industrial control inputs |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges - critical for protecting fast-switching MOSFET gates |
| AEC-Q101 qualified option (HM3) | Validated for automotive powertrain and body electronics per stress test requirements |
| Halogen-free & RoHS-compliant (M3) | Meets global environmental compliance mandates without compromising surge performance |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and I/O lines against back-EMF spikes from relay and solenoid switching. IC Role / Device Role / Timing Role: TVS clamp placed across MOSFET drain-source or driver supply pins to limit voltage overshoot during turn-off. Use Value: Limits transient voltage to ≤48.4 V, preventing gate oxide rupture and latch-up in 60 V-rated logic-level MOSFETs. |
Use Scenario: Surge protection on LIN bus lines and window lift motor control inputs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground to absorb 10/1000 μs pulses up to 1500 W. Use Value: Maintains signal integrity below 30 V stand-off while clamping 31 A surges - compliant with ISO 7637-2 Pulse 1/2a/5a. |
| Telecom Power Supplies | Consumer Sensor Interfaces |
Use Scenario: Input-stage protection for 48 V telecom rectifiers subjected to lightning-induced surges on AC input or DC distribution lines. IC Role / Device Role / Timing Role: Primary clamping device mounted at board edge, upstream of bulk capacitors and DC-DC controllers. Use Value: Absorbs 1500 W peak pulses without degradation, preserving downstream controller reliability over >100,000 surge events. |
Use Scenario: ESD and switching transient protection on analog outputs of temperature/humidity sensors in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at zero bias) placed directly at connector interface to suppress contact discharge. Use Value: Clamps 8 kV HBM ESD events to <48.4 V within <1 ns, preventing ADC offset drift or microcontroller reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5A (Vishay) | DO-214AC package; 30 V VWM; 48.4 V VC @ 30.9 A; same PPPM but higher RθJA (140 °C/W) | Less effective thermal dissipation on dense PCBs; not suitable for >1 Hz surge repetition | Select when legacy DO-214AC footprint is fixed and surge duty cycle is low |
| 1.5KE30A (ON Semiconductor) | Through-hole DO-201 package; 30 V VWM; 49.9 V VC @ 30.1 A; 1500 W rating; no MSL or AEC-Q101 support | Requires wave soldering; incompatible with automated SMT lines; unsuitable for automotive production | Select only for prototyping or non-automated repair scenarios where SMT is unavailable |
Compared with SMAJ30A-E3/5A and 1.5KE30A, the SMPC30A-M3/86A delivers superior thermal performance in SMT layouts, supports high-volume automated assembly, and offers direct upgrade paths to AEC-Q101 via HM3 suffix - making it optimal for industrial and automotive production programs requiring long-term supply stability.
Availability
SMPC30A-M3/86A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and telecom power supplies requiring stable component supply, consistent M3-grade material compliance, and tape-and-reel delivery in 1500-unit reels.
Supply support for SMPC30A-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, and protection devices with emphasis on reliability, surge robustness, and automotive qualification.
The SMPC series was developed specifically for high-power-density transient suppression in space-constrained SMT applications - targeting industrial automation, automotive subsystems, and infrastructure equipment where low-profile, high-PPPM, and AEC-Q101-ready TVS devices are mandatory.
FAQ
What is the clamping voltage of SMPC30A-M3/86A under a 10/1000 μs surge?
The SMPC30A-M3/86A has a maximum clamping voltage (VC) of 48.4 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 31.0 A. This value is measured per Figure 3 in Vishay document 89116 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMPC30A-M3/86A maintains this clamping performance across its specified junction temperature range of –55 °C to +150 °C.
Is SMPC30A-M3/86A suitable for automotive applications?
The SMPC30A-M3/86A itself is industrial-grade (M3 suffix), but the identical electrical characteristics are available in AEC-Q101-qualified form as SMPC30ANHM3/86A. For automotive use, designers must specify the HM3 suffix - which adds qualification per stress tests including HTGB, HTRB, and temperature cycling. The SMPC30A-M3/86A is not AEC-Q101 qualified, though its construction and thermal specs align with automotive layout requirements.
What does the /86A package code indicate for SMPC30A-M3/86A?
The /86A suffix denotes the preferred tape-and-reel packaging format: 7-inch diameter plastic tape with 1500 units per reel, per Vishay's ordering information table. It specifies carrier tape width, sprocket hole pitch, and orientation - ensuring compatibility with standard pick-and-place feeders. The /86A code does not affect electrical or thermal specifications of the SMPC30A-M3/86A device itself.
How does the dual-anode configuration of SMPC30A-M3/86A improve surge handling?
The SMPC30A-M3/86A integrates two anode terminals electrically paralleled internally, distributing surge current across two bond wires and die regions. This reduces localized heating and lowers incremental surge resistance - directly contributing to its 48.4 V clamping voltage at 31.0 A. The dual-anode layout also improves mechanical robustness during thermal cycling, a key reliability factor in industrial and automotive deployments of the SMPC30A-M3/86A.
Can SMPC30A-M3/86A replace older SMAJ30A designs without PCB changes?
No - SMPC30A-M3/86A uses the SMPC (TO-277A) package, while SMAJ30A uses DO-214AC. Their footprints, pad layouts, and thermal vias are incompatible. Although both offer 30 V VWM and ~48 V clamping, the SMPC30A-M3/86A requires a new land pattern per Vishay's mounting pad layout (0.268" × 0.186"). Redesign is required to leverage the lower profile and improved thermal resistance of the SMPC30A-M3/86A.
SMPC30A-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 31A
- 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)
SMPC30A-M3/86A FAQ
1.How can I place an order for SMPC30A-M3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC30A-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 SMPC30A-M3/86A reliable?
The price and inventory of SMPC30A-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 SMPC30A-M3/86A is usually 5 days.
3.What payment methods are accepted for SMPC30A-M3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC30A-M3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC30A-M3/86A?
SMPC30A-M3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC30A-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 SMPC30A-M3/86A?
For technical support, including SMPC30A-M3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC30A-M3/86A requirements.
6.How does Aetrix verify that SMPC30A-M3/86A is sourced from the original manufacturer or authorized distributors?
All SMPC30A-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 SMPC30A-M3/86A meets industry standards.
7.What is the process for return or replacement of SMPC30A-M3/86A?
All SMPC30A-M3/86A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC30A-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 SMPC30A-M3/86A part is unused and in its original packaging.
Return procedure for SMPC30A-M3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC30A-M3/86A Tags
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