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Vishay General Semiconductor - Diodes Division SMPC30AN-M3/I
- Part No.:
- SMPC30AN-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC30AN-M3/I.pdf
- Description:
- TVS DIODE 30VWM 48.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,403
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Product details
Overview
SMPC30AN-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMPC (TO-277A) package, rated for 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) with 48.4 V clamping voltage at 31 A IPPM. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial electronics.
For engineers reviewing the SMPC30AN-M3/I datasheet, SMPC30AN-M3/I pinout, SMPC30AN-M3/I application, or SMPC30AN-M3/I equivalent, this device delivers AEC-Q101-qualified surge protection with low-profile 1.1 mm height, MSL Level 1 reflow compatibility, and halogen-free RoHS-compliant construction - critical for space-constrained, high-reliability PCB designs.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its VWM of 30 V, limiting downstream circuit voltage to ≤48.4 V during 10/1000 μs surges up to 31 A. Its low incremental surge resistance and fast response time ensure minimal energy transfer to protected components.
Thermally, it features RθJA ≤100 °C/W on FR4 (2 oz copper) and supports continuous operation from −55 °C to +150 °C junction temperature. The cathode band denotes polarity, and both anodes are internally tied - confirmed by the SMPCxxAN pin configuration showing dual-anode/single-cathode topology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - ensures consistent avalanche initiation across production lots |
| VC @ IPPM | 48.4 V at 31 A - clamping voltage under full 1500 W surge; determines peak stress on protected IC |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform; enables robust ESD and load-dump immunity |
| TJ max | +150 °C - maximum junction temperature; supports under-hood automotive and industrial ambient conditions |
| Package | SMPC (TO-277A) - 3-terminal surface-mount package with dual anodes and shared cathode; 1.1 mm profile |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry path during reverse-biased transient | Internally connected to Anode 2; provides parallel conduction paths for higher surge current sharing |
| Anode 2 | Secondary current entry path during reverse-biased transient | Electrically tied to Anode 1; enhances thermal distribution and reduces localized heating under surge |
| Cathode | Common output terminal during clamping event | Marked by band; connects to ground or low-impedance return path to shunt transient energy safely |
Key Features
| Feature | Design Value |
|---|---|
| Dual-anode architecture | Reduces effective series resistance and improves current sharing during high-peak transients |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| MSL Level 1 rating | Enables single-pass 260 °C lead-free reflow without moisture-induced damage or delamination |
| Halogen-free & RoHS | Complies with environmental regulations and eliminates corrosive halogen emissions during board assembly |
| Low 1.1 mm profile | Minimizes PCB real estate and enables placement beneath low-clearance shields or connectors |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protection of microcontroller I/O pins and CAN transceiver lines against load dump and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤48.4 V during 31 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces. |
Use Scenario: Safeguarding encoder feedback lines and gate driver inputs from commutation spikes in 3-phase inverters. IC Role / Device Role / Timing Role: Standoff protector on differential analog inputs and isolated digital control signals. Use Value: Maintains 30 V working margin while clamping 1500 W surges - preserving signal integrity during rapid PWM switching. |
| Automotive Camera Module | Telecom Power Supply Input |
Use Scenario: Shielding MIPI CSI-2 data lanes and power rails in surround-view camera systems exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on high-speed serial links. Use Value: Delivers sub-1.1 mm height and <100 pF junction capacitance (typ.) - avoiding signal integrity degradation at 1.5 Gbps. |
Use Scenario: Front-end protection of AC/DC adapter inputs against lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary clamping device upstream of bridge rectifier and bulk capacitor. Use Value: Handles 1500 W peak pulse power with 48.4 V clamping - reducing downstream MOV stress and extending system lifetime. |
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-M3/5BT | DO-214AC package; 33.3–36.8 V VBR; 600 W PPPM; single-anode topology | Lower surge rating and larger footprint; suitable for non-automotive cost-sensitive designs | Select when board space allows larger package and AEC-Q101 qualification is not required |
| SMCJ30A-M3/87A | DO-214AB package; same VWM/VBR; 1500 W PPPM; single-anode; MSL Level 1 | Larger 7.11 × 6.22 mm body; higher thermal mass but less PCB density efficiency | Choose when higher thermal inertia is needed for repetitive surge events in industrial power supplies |
Compared with SMAJ30A-M3/5BT and SMCJ30A-M3/87A, the SMPC30AN-M3/I offers identical electrical clamping performance in a 40% smaller footprint with dual-anode current sharing and mandatory AEC-Q101 validation - making it the preferred choice for next-generation automotive sensor modules and compact industrial controllers.
Availability
SMPC30AN-M3/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive interface protection, and telecom power supply input hardening requiring stable component supply and long-term lifecycle assurance.
Supply support for SMPC30AN-M3/I 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 optoelectronics with emphasis on reliability and application-specific performance.
The SMPC30AN-M3/I belongs to Vishay's TransZORB® SMPC family, engineered for high-power transient suppression in space-constrained, high-reliability environments - especially automotive and industrial systems demanding AEC-Q101 compliance and ultra-low profile packaging.
FAQ
What is the clamping voltage of SMPC30AN-M3/I at its rated peak pulse current?
The SMPC30AN-M3/I has a maximum clamping voltage (VC) of 48.4 V at 31 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuits during surge events and is critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream of the SMPC30AN-M3/I.
Is SMPC30AN-M3/I qualified for automotive applications?
Yes, the SMPC30AN-M3/I is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 17-Sep-2021. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making SMPC30AN-M3/I suitable for use in engine control units, ADAS sensors, and other automotive subsystems where reliability under harsh conditions is mandatory.
What does the "AN" suffix indicate in SMPC30AN-M3/I?
The "AN" suffix in SMPC30AN-M3/I denotes the dual-anode variant of the SMPC series, distinguishing it from the single-anode "A" versions (e.g., SMPC30A). As shown in the mechanical diagram, SMPC30AN-M3/I features two anode terminals internally tied together, enabling improved current sharing and lower effective surge resistance compared to single-anode counterparts like SMPC30A-M3/I.
What is the thermal resistance of SMPC30AN-M3/I when mounted on a standard FR4 PCB?
The SMPC30AN-M3/I has a maximum junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on a standard FR4 PCB with 2 oz copper, per JEDEC 51-2A. Its typical junction-to-mount thermal resistance (RθJM) is 2.5 °C/W, supporting efficient heat transfer to heatsink pads - essential for maintaining TJ ≤150 °C during repeated transient events.
How does the SMPC30AN-M3/I differ from SMPC30A-M3/I in terms of pin configuration and performance?
The SMPC30AN-M3/I uses a dual-anode (Anode 1 + Anode 2) and single-cathode configuration, whereas SMPC30A-M3/I is single-anode. This structural difference lowers incremental surge resistance and improves thermal distribution. Both share identical VWM (30 V), VBR (33.3–36.8 V), and PPPM (1500 W), but only SMPC30AN-M3/I is AEC-Q101 qualified and offered in the /I tape-and-reel format for high-volume automated assembly.
SMPC30AN-M3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- TransZorb®
- 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)
SMPC30AN-M3/I FAQ
1.How can I place an order for SMPC30AN-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC30AN-M3/I 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 SMPC30AN-M3/I reliable?
The price and inventory of SMPC30AN-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC30AN-M3/I is usually 5 days.
3.What payment methods are accepted for SMPC30AN-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC30AN-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC30AN-M3/I?
SMPC30AN-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC30AN-M3/I 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 SMPC30AN-M3/I?
For technical support, including SMPC30AN-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC30AN-M3/I requirements.
6.How does Aetrix verify that SMPC30AN-M3/I is sourced from the original manufacturer or authorized distributors?
All SMPC30AN-M3/I 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 SMPC30AN-M3/I meets industry standards.
7.What is the process for return or replacement of SMPC30AN-M3/I?
All SMPC30AN-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMPC30AN-M3/I, 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 SMPC30AN-M3/I part is unused and in its original packaging.
Return procedure for SMPC30AN-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC30AN-M3/I Tags
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