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Vishay General Semiconductor - Diodes Division SMPC30A-M3/87A
- Part No.:
- SMPC30A-M3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC30A-M3/87A.pdf
- Description:
- TVS DIODE 30VWM 48.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,286
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Product details
Overview
SMPC30A-M3/87A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMPC (TO-277A) package, with 30.0 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR), 48.4 V clamping voltage at 31.0 A peak pulse current, and 1500 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial control systems.
For engineers reviewing the SMPC30A-M3/87A datasheet, SMPC30A-M3/87A pinout, SMPC30A-M3/87A application, or SMPC30A-M3/87A 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 reflow compatibility, and thermal resistance of 85–100 °C/W junction-to-ambient on FR4.
Technical Context
This device operates as a silicon avalanche diode designed to clamp transient overvoltages before they damage downstream circuitry. Its low incremental surge resistance and fast response time enable effective suppression of 10/1000 μs waveform surges up to 1500 W without thermal runaway under defined derating conditions.
The SMPC30A-M3/87A uses a dual-anode/single-cathode configuration (Anode 1, Anode 2, Cathode) in the SMPC (TO-277A) package, where the cathode band denotes polarity. It is rated for -55 °C to +150 °C operating junction temperature and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30.0 V - maximum reverse working voltage before leakage exceeds 1.0 μA; defines safe DC/AC operating margin |
| VBR min/max | 33.3 V / 36.8 V at 1.0 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots |
| VC at IPPM | 48.4 V at 31.0 A - clamped voltage during 10/1000 μs surge; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform; sets single-event surge robustness |
| RθJA | 85–100 °C/W - thermal resistance junction-to-ambient on FR4; governs steady-state power derating above 25 °C |
| Package | SMPC (TO-277A) - 3-terminal surface-mount outline with 1.1 mm typical height; enables automated placement and high-density layout |
| Polarity | Unidirectional - cathode-banded terminal conducts only in reverse bias avalanche mode; requires correct orientation in series with protected line |
Pinout & Package
SMPC30A-M3/87A uses the SMPC (TO-277A) package: 3-terminal surface-mount outline with 1.1 mm typical height, matte tin-plated leads, and cathode band marking. Conforms to JEDEC TO-277A mechanical standard and UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary anode connection | One of two parallel anode terminals; shares current path with Anode 2 to reduce effective series resistance |
| Anode 2 | Secondary anode connection | Redundant anode terminal enabling lower dynamic impedance and improved surge current sharing |
| Cathode | Common cathode terminal | Banded end; connects to protected line's reference (e.g., ground or supply rail); defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 1.1 mm typical height - enables use in ultra-thin consumer electronics and tight-clearance automotive modules |
| Low incremental surge resistance | Enables tighter clamping (VC = 48.4 V @ 31.0 A) versus comparable TVS devices, reducing stress on protected ICs |
| MSL Level 1 rating | Compatible with lead-free reflow up to 260 °C peak - eliminates pre-baking and supports standard SMT assembly lines |
| AEC-Q101 qualification path | Available with HM3 suffix (SMPC30ANHM3/87A) - validated for automotive powertrain and body electronics applications |
| Halogen-free & RoHS-compliant | M3 suffix confirms compliance with environmental directives and JEDEC whisker testing (Class 2) |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and relay driver outputs from load dump and inductive kickback in vehicle door modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between protected signal line and chassis ground to clamp transients below IC absolute maximum ratings. Use Value: With 48.4 V clamping at 31.0 A, SMPC30A-M3/87A prevents latch-up or gate oxide damage in 30 V-rated automotive transceivers during ISO 7637-2 Pulse 1/2a events. | Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controller (PLC) backplanes exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated (30.0 V) TVS connected across input terminals to shunt induced transients before reaching optocoupler or Schmitt trigger inputs. Use Value: 1500 W peak pulse power rating allows reliable suppression of 1 kV/50 Ω surge waveforms per IEC 61000-4-5 without degradation over 1000+ events. |
| Consumer Appliance Motor Drive | Telecom Power Supply Input |
Use Scenario: Clamping flyback voltage spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Mounted directly across motor terminals with cathode tied to positive rail to absorb bidirectional energy via internal dual-anode structure. Use Value: Dual-anode configuration lowers effective dynamic impedance, achieving faster voltage stabilization (<1 ns response) and reducing EMI coupling into adjacent analog circuits. | Use Scenario: Secondary-side transient protection on 48 V telecom rectifier outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +48 V output and return, leveraging 30.0 V VWM to avoid leakage during normal operation while clamping lightning-induced surges. Use Value: 1.1 mm profile allows placement adjacent to connector pins without interfering with heatsink clearance or board stacking height in compact 1RU power systems. |
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) | Same VWM (30.0 V) and VC (48.4 V), but SMA package (higher RθJA ≈ 150 °C/W), lower PPPM (400 W) | Lower surge capacity limits use to sub-100 W systems; not suitable for 1500 W automotive load dump scenarios | Select SMPC30A-M3/87A when PCB space permits and 1500 W surge immunity is required; choose SMAJ30A-E3/5A only for cost-sensitive, low-energy applications. |
| 1.5KE30A (ON Semiconductor) | Through-hole DO-201 package, same VWM/VC specs, but higher profile (4.5 mm) and no MSL Level 1 rating | Requires wave soldering or hand assembly; incompatible with fully automated SMT lines and high-density layouts | Choose SMPC30A-M3/87A for surface-mount production scalability and reflow compatibility; use 1.5KE30A only for prototyping or legacy through-hole designs. |
Compared with SMAJ30A-E3/5A and 1.5KE30A, SMPC30A-M3/87A delivers 3.75× higher peak pulse power in a 1.1 mm profile with MSL Level 1 support-making it the only option qualified for high-reliability, high-volume automotive and industrial SMT deployments requiring >1 kW transient handling.
Availability
SMPC30A-M3/87A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and consumer appliance motor drive circuits requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification readiness.
Supply support for SMPC30A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The SMPC series targets high-power transient suppression in space-constrained, high-volume applications-designed specifically for automotive, industrial, and telecom systems needing robust, low-profile, and reflow-compatible TVS solutions.
FAQ
What is the exact breakdown voltage range for SMPC30A-M3/87A?
The SMPC30A-M3/87A has a guaranteed breakdown voltage (VBR) range of 33.3 V to 36.8 V at 1.0 mA test current, as specified in the Vishay datasheet document 89116. This range ensures consistent avalanche turn-on behavior across all units and supports design margining for 30 V nominal systems. The value is measured under controlled 25 °C conditions and applies directly to the SMPC30A-M3/87A part number.
Does SMPC30A-M3/87A support lead-free reflow soldering?
Yes, SMPC30A-M3/87A meets MSL Level 1 per J-STD-020 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, and the package passes JESD201 Class 2 whisker testing. These qualifications are confirmed for the M3 suffix variant and apply to the SMPC30A-M3/87A ordering code.
Is SMPC30A-M3/87A AEC-Q101 qualified?
No, SMPC30A-M3/87A is not AEC-Q101 qualified. Only variants with the HM3 suffix (e.g., SMPC30ANHM3/87A) carry AEC-Q101 qualification. The "A" suffix in SMPC30A-M3/87A denotes unidirectional polarity and industrial grade; the "AN" variant indicates AEC-Q101 availability, and HM3 adds the automotive qualification. Therefore, SMPC30A-M3/87A is intended for industrial and commercial applications, not automotive safety-critical systems.
What does the /87A package code indicate for SMPC30A-M3/87A?
For SMPC30A-M3/87A, the /87A suffix specifies the packaging format: 13-inch diameter plastic tape and reel, with a base quantity of 6500 units per reel. This differs from /86A (7-inch reel, 1500 units). Both /86A and /87A are available for SMPC5.0A-M3 through SMPC36A-M3, and the mechanical device remains identical-only the reel configuration changes. The /87A option supports high-volume SMT placement efficiency.
How is the dual-anode configuration used in SMPC30A-M3/87A?
The SMPC30A-M3/87A features two anode terminals (Anode 1 and Anode 2) and one shared cathode, forming a parallel anode structure that reduces effective dynamic impedance during surge events. This configuration improves current sharing and lowers clamping voltage under high di/dt conditions. In layout, both anodes must be connected to the same potential (e.g., protected line), while the banded cathode connects to reference ground or rail-ensuring proper unidirectional operation of the SMPC30A-M3/87A.
SMPC30A-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):
- 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-M3/87A FAQ
1.How can I place an order for SMPC30A-M3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC30A-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 SMPC30A-M3/87A reliable?
The price and inventory of SMPC30A-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 SMPC30A-M3/87A is usually 5 days.
3.What payment methods are accepted for SMPC30A-M3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC30A-M3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC30A-M3/87A?
SMPC30A-M3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC30A-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 SMPC30A-M3/87A?
For technical support, including SMPC30A-M3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC30A-M3/87A requirements.
6.How does Aetrix verify that SMPC30A-M3/87A is sourced from the original manufacturer or authorized distributors?
All SMPC30A-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 SMPC30A-M3/87A meets industry standards.
7.What is the process for return or replacement of SMPC30A-M3/87A?
All SMPC30A-M3/87A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC30A-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 SMPC30A-M3/87A part is unused and in its original packaging.
Return procedure for SMPC30A-M3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC30A-M3/87A Tags
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