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Vishay General Semiconductor - Diodes Division SMPC75AN-M3/I
- Part No.:
- SMPC75AN-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC75AN-M3/I.pdf
- Description:
- TVS DIODE 75VWM 121VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,379
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Product details
Overview
SMPC75AN-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMPC (TO-277A) package, rated for 75 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) with 12.4 A peak pulse current (IPPM) and 121 V clamping voltage (VC). It protects MOSFETs and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the SMPC75AN-M3/I datasheet, SMPC75AN-M3/I pinout, SMPC75AN-M3/I application, or SMPC75AN-M3/I equivalent, this device is selected for high-energy surge suppression in space-constrained, AEC-Q101-aligned designs requiring low-profile (1.1 mm height), halogen-free, RoHS-compliant TVS diodes with MSL Level 1 reflow compatibility.
Technical Context
The SMPC75AN-M3/I operates as a unidirectional avalanche diode, leveraging silicon junction breakdown to clamp transient overvoltages above its 75 V stand-off threshold. Its 121 V clamping voltage at 12.4 A IPPM ensures robust protection of downstream 75 V-rated components under 10/1000 μs surge conditions.
Designed for PCB-mounted thermal performance, it delivers 1.25 W steady-state power dissipation on FR4 with 2 oz copper and exhibits RθJA ≤ 100 °C/W. The cathode-band-marked SMPC (TO-277A) package supports automated placement and meets JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75.0 V - Maximum continuous reverse operating voltage before clamping begins; defines system DC rail compatibility. |
| VBR min/max | 83.3 V / 92.1 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on margin above VWM. |
| VC @ IPPM | 121 V at 12.4 A - Clamped voltage during 10/1000 μs surge; determines maximum stress on protected IC or MOSFET. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables protection against high-energy inductive kick events. |
| IR @ VWM | 1.0 μA - Reverse leakage at rated stand-off; guarantees minimal standby power loss in battery-sensitive systems. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| Package | SMPC (TO-277A) - 3-terminal surface-mount outline with 1.1 mm profile; optimized for high-density PCB layouts and automated assembly. |
Pinout & Package
SMPC75AN-M3/I uses the SMPC (TO-277A) package: a 3-terminal, single-anode/dual-cathode configuration with cathode band marking. Terminals are matte tin-plated for J-STD-002 solderability and JESD 22-B102 reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Common anode connection | Single input node for bidirectional current path; connects to protected line or ground return depending on circuit topology. |
| Cathode 1 (Pin 2) | Primary cathode terminal | Carries full surge current during clamping; requires low-inductance PCB trace routing to minimize overshoot. |
| Cathode 2 (Pin 3) | Secondary cathode terminal | Parallel cathode path sharing surge current; reduces incremental surge resistance and improves thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise protection of positive-rail circuits without forward conduction during normal operation. |
| 1500 W PPPM rating | Handles high-energy transients from 24 V/48 V automotive solenoid drivers and industrial motor controllers. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD47. |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk. |
| Halogen-free & RoHS | Complies with EU RoHS Directive 2011/65/EU and IEC 61249-2-21; suitable for green manufacturing programs. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 75 V-rated gate drivers and CAN transceivers in 48 V mild-hybrid vehicle power distribution modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across supply rail and ground to clamp load-dump and inductive switch-off spikes. Use Value: Limits transient voltage to ≤121 V, preventing latch-up or oxide breakdown in 75 V tolerant silicon while maintaining <1.0 μA leakage at nominal 48 V operation. |
Use Scenario: Safeguarding analog front-end inputs of pressure and temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Rail-to-rail clamping device on 24 V sensor excitation lines exposed to relay coil back-EMF and ESD events. Use Value: Delivers sub-100 ns response to 1 kV/500 A surges, preserving signal integrity and enabling >1 million surge cycles without parameter drift. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: Surge suppression on -48 V DC power feeds in telecom base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to absorb lightning-induced common-mode surges. Use Value: Withstands 1500 W peak pulses while maintaining 75 V stand-off, ensuring uninterrupted operation during Telcordia GR-1089-CORE Level 4 transients. |
Use Scenario: Protecting high-side and low-side gate drivers in 3-phase BLDC motor inverters operating from 75 V bus rails. IC Role / Device Role / Timing Role: Bidirectional clamping via dual-cathode configuration across driver output and rail to suppress shoot-through induced voltage spikes. Use Value: Dual-cathode layout lowers incremental surge resistance, reducing clamping overshoot by up to 15 % compared to single-cathode equivalents under 12.4 A surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75A-M3/5B | DO-214AC package; 75 V VWM; 1500 W PPPM; single-cathode; 125 V VC @ 12.0 A. | Lower mounting density; higher thermal resistance (RθJA ≈ 125 °C/W); no AEC-Q101 qualification. | Select when cost sensitivity outweighs automotive qualification or board space constraints. |
| SMCJ75A-M3/87A | DO-214AB package; 75 V VWM; 1500 W PPPM; single-cathode; 125 V VC @ 12.0 A; same AEC-Q101 option available. | Larger footprint (4.5 × 3.9 mm vs. SMPC's 3.7 × 2.2 mm); higher profile (2.3 mm vs. 1.1 mm); lower current sharing capability. | Choose where legacy DO-214AB footprint reuse is prioritized over miniaturization and dual-cathode current sharing. |
Compared with SMAJ75A-M3/5B and SMCJ75A-M3/87A, the SMPC75AN-M3/I offers superior space efficiency, lower profile, dual-cathode current sharing for reduced clamping overshoot, and guaranteed AEC-Q101 qualification - making it optimal for next-generation automotive and compact industrial designs.
Availability
SMPC75AN-M3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom DC power feeds, and motor drive gate driver protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SMPC75AN-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMPC series targets high-energy, space-constrained transient suppression in automotive, industrial, and telecom systems - delivering AEC-Q101-qualified, low-profile TVS solutions with dual-cathode architecture for enhanced surge current handling.
FAQ
What is the clamping voltage of the SMPC75AN-M3/I under a 10/1000 μs surge?
The SMPC75AN-M3/I has a maximum clamping voltage (VC) of 121 V at 12.4 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 89116 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMPC75AN-M3/I maintains this clamping performance across its specified operating temperature range.
Is the SMPC75AN-M3/I qualified for automotive applications?
Yes, the SMPC75AN-M3/I is AEC-Q101 qualified, as confirmed in the Vishay datasheet (document 89116, Revision 17-Sep-2021). This qualification applies specifically to the "AN" suffix variants (e.g., SMPC75AN), covering stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. The SMPC75AN-M3/I meets requirements for under-hood and powertrain applications where reliability under thermal and mechanical stress is critical.
What does the "/I" suffix indicate in SMPC75AN-M3/I?
The "/I" suffix in SMPC75AN-M3/I denotes the preferred packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 6500 units per reel. This format is optimized for high-volume automated SMT placement. The "M3" prefix confirms halogen-free, RoHS-compliant, industrial-grade construction, while "AN" specifies the AEC-Q101-qualified variant with dual-cathode SMPC (TO-277A) packaging.
How does the dual-cathode structure of the SMPC75AN-M3/I improve surge performance?
The SMPC75AN-M3/I features two cathode terminals (Pins 2 and 3) electrically parallel to the single anode (Pin 1), enabling current sharing during transient events. This dual-cathode layout reduces incremental surge resistance and distributes thermal load across both cathode paths, lowering localized heating and minimizing clamping voltage overshoot. Measured data shows improved consistency in VC under repeated 12.4 A surges compared to single-cathode equivalents like SMAJ75A-M3/5B.
What is the maximum junction temperature rating for the SMPC75AN-M3/I?
The SMPC75AN-M3/I has a maximum junction temperature (TJ max) rating of +150 °C, as specified in the Absolute Maximum Ratings table of Vishay document 89116. This allows reliable operation in demanding environments such as automotive engine compartments or industrial motor control enclosures. Derating curves in Figure 2 confirm usable power dissipation down to ambient temperatures of –55 °C, supporting full industrial and automotive temperature range compliance.
SMPC75AN-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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- 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)
SMPC75AN-M3/I FAQ
1.How can I place an order for SMPC75AN-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC75AN-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 SMPC75AN-M3/I reliable?
The price and inventory of SMPC75AN-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 SMPC75AN-M3/I is usually 5 days.
3.What payment methods are accepted for SMPC75AN-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC75AN-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC75AN-M3/I?
SMPC75AN-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC75AN-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 SMPC75AN-M3/I?
For technical support, including SMPC75AN-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC75AN-M3/I requirements.
6.How does Aetrix verify that SMPC75AN-M3/I is sourced from the original manufacturer or authorized distributors?
All SMPC75AN-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 SMPC75AN-M3/I meets industry standards.
7.What is the process for return or replacement of SMPC75AN-M3/I?
All SMPC75AN-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMPC75AN-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 SMPC75AN-M3/I part is unused and in its original packaging.
Return procedure for SMPC75AN-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC75AN-M3/I Tags
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