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Vishay General Semiconductor - Diodes Division SMPC75ANHM3/I
- Part No.:
- SMPC75ANHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC75ANHM3/I.pdf
- Description:
- TVS DIODE 75VWM 121VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
SMPC75ANHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the eSMP® SMPC (TO-277A) package, designed for high-energy surge protection of sensitive electronics. It features a 75 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR), 12.4 A peak pulse current (IPPM), 121 V clamping voltage (VC), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform.
For engineers reviewing the SMPC75ANHM3/I datasheet, SMPC75ANHM3/I pinout, SMPC75ANHM3/I application, or SMPC75ANHM3/I equivalent, this device is selected for automotive-grade transient suppression in power rails and signal lines where AEC-Q101 qualification, low profile (1.1 mm height), and fast response time are critical design requirements.
Technical Context
This TVS diode operates in avalanche mode to clamp transient overvoltages before they damage downstream components. Its unidirectional polarity enables integration into DC-biased circuits such as automotive power supplies and sensor interfaces, with cathode band marking for orientation.
The SMPC75ANHM3/I is thermally optimized for FR4 PCB mounting (2 oz copper), exhibiting RθJA ≤ 100 °C/W and RθJM ≤ 3 °C/W. It meets J-STD-020 MSL Level 1 (260 °C peak reflow) and passes JESD201 Class 2 whisker testing, confirming robustness for automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC bias margin. |
| VBR min/max | 83.3 V / 92.1 V at 1.0 mA - Confirmed breakdown range ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 121 V - Clamped voltage during 12.4 A 10/1000 μs surge; determines maximum stress on protected ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 surge immunity designs. |
| TJ max | +150 °C - Maximum junction temperature rating enabling operation in under-hood automotive environments. |
| Package | SMPC (TO-277A) - 3-terminal surface-mount package with anode-cathode-anode configuration and 1.1 mm profile. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TCT, and ESD. |
Pinout & Package
SMPC75ANHM3/I uses the SMPC (TO-277A) package: a 3-terminal, low-profile surface-mount outline conforming to JEDEC TO-277A. The cathode band denotes the central terminal; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode) | Anode connection | One of two symmetrical anode terminals; connected in parallel to distribute surge current and reduce thermal resistance. |
| Terminal 2 (Cathode) | Cathode connection | Center terminal marked by cathode band; carries full clamping current during transient events. |
| Terminal 3 (Anode) | Anode connection | Second symmetrical anode terminal; enables dual-anode layout for balanced current sharing and lower effective Rsurge. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables use in DC-biased power rails without reverse leakage concerns; avoids false triggering on negative transients. |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, ADAS sensors, and infotainment power inputs. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving system-level EMC robustness. |
| MSL Level 1 rating | Supports single-pass lead-free reflow up to 260 °C without popcorn cracking or delamination. |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for industrial and automotive supply chains. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 16750-2. IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage. Use Value: Withstands 1500 W surges and clamps to 121 V, preventing overvoltage damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Signal-line TVS placed adjacent to connector entry points to shunt ESD and switching noise. Use Value: Fast response time and low clamping voltage preserve signal integrity while meeting IEC 61000-4-2 Level 4 (15 kV air) requirements. |
| Telecom DC Power Input Protection | Consumer Device USB Power Path Protection |
|
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on backplane distribution lines. IC Role / Device Role / Timing Role: High-power unidirectional TVS mounted directly at power entry point before bulk capacitance. Use Value: 12.4 A IPPM and 1500 W PPPM enable compliance with GR-1089-CORE surge immunity specifications. |
Use Scenario: Adding secondary overvoltage protection on USB Type-C VBUS lines in portable audio devices. IC Role / Device Role / Timing Role: Secondary clamping device after primary fuse and upstream TVS, targeting residual transients. Use Value: 1.1 mm height allows placement in space-constrained USB port areas without interfering with mechanical stacking. |
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 | DO-214AC package; 75 V VWM; 1500 W PPPM; unidirectional; no AEC-Q101 qualification. | Lacks automotive qualification; higher profile (2.3 mm); suitable for industrial/commercial boards only. | Select SMAJ75A when AEC-Q101 is not required and board height budget permits larger package. |
| SMCJ75A | DO-214AB package; 75 V VWM; 1500 W PPPM; unidirectional; no AEC-Q101; RθJA ≈ 15°C/W (higher thermal resistance). | Lower power density and inferior thermal performance; not qualified for automotive under-hood use. | Choose SMCJ75A only for cost-sensitive non-automotive applications where footprint and thermal constraints are less stringent. |
Compared with SMAJ75A and SMCJ75A, SMPC75ANHM3/I delivers automotive-grade reliability in a 1.1 mm low-profile package with superior thermal resistance (RθJM ≤ 3 °C/W), making it the sole option among the three qualified for AEC-Q101 and optimized for space-constrained automotive power rail protection.
Availability
SMPC75ANHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply with long-term lifecycle support and traceable sourcing.
Supply support for SMPC75ANHM3/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 and application-specific performance.
The SMPC series is engineered for high-energy transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise clamping characteristics for robust system-level ESD and surge immunity.
FAQ
What is the polarity configuration of SMPC75ANHM3/I?
SMPC75ANHM3/I is a unidirectional TVS diode with anode-cathode-anode (A-K-A) terminal arrangement in the SMPC (TO-277A) package. The cathode band marks the center terminal, and both outer terminals serve as symmetrical anodes-enabling balanced current sharing and reduced effective surge resistance during clamping events.
Is SMPC75ANHM3/I qualified for automotive applications?
Yes, SMPC75ANHM3/I is AEC-Q101 qualified, as confirmed by Vishay's documentation for the SMPC22AN through SMPC85AN family. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making SMPC75ANHM3/I suitable for under-hood and chassis-mounted automotive electronics.
What is the clamping voltage of SMPC75ANHM3/I at its rated peak pulse current?
The clamping voltage (VC) of SMPC75ANHM3/I is 121 V at its specified peak pulse current (IPPM) of 12.4 A with a 10/1000 μs waveform. This value is measured with the cathode mounted on heatsink per the datasheet test condition and defines the maximum voltage imposed on protected circuitry during surge events.
Does SMPC75ANHM3/I require special PCB layout considerations?
Yes-SMPC75ANHM3/I benefits from symmetric copper pour on both anode pads and direct thermal connection from the cathode pad to internal ground/power planes. Vishay recommends using the standard FR4 footprint with 2 oz copper to achieve RθJA ≤ 100 °C/W and ensure reliable 1500 W pulse handling without thermal runaway.
What does the "/I" suffix indicate in SMPC75ANHM3/I?
The "/I" suffix in SMPC75ANHM3/I denotes the preferred packaging option: 13-inch diameter plastic tape and reel, with a base quantity of 6500 units. This format supports high-volume automated SMT assembly and is distinct from the "/H" variant (7-inch reel, 1500 units), both sharing identical electrical and mechanical specifications.
SMPC75ANHM3/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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
SMPC75ANHM3/I FAQ
1.How can I place an order for SMPC75ANHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC75ANHM3/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 SMPC75ANHM3/I reliable?
The price and inventory of SMPC75ANHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC75ANHM3/I is usually 5 days.
3.What payment methods are accepted for SMPC75ANHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC75ANHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC75ANHM3/I?
SMPC75ANHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC75ANHM3/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 SMPC75ANHM3/I?
For technical support, including SMPC75ANHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC75ANHM3/I requirements.
6.How does Aetrix verify that SMPC75ANHM3/I is sourced from the original manufacturer or authorized distributors?
All SMPC75ANHM3/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 SMPC75ANHM3/I meets industry standards.
7.What is the process for return or replacement of SMPC75ANHM3/I?
All SMPC75ANHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMPC75ANHM3/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 SMPC75ANHM3/I part is unused and in its original packaging.
Return procedure for SMPC75ANHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC75ANHM3/I Tags
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