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Vishay General Semiconductor - Diodes Division SMPC64ANHM3/H
- Part No.:
- SMPC64ANHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC64ANHM3/H.pdf
- Description:
- TVS DIODE 64VWM 103VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,740
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Product details
Overview
SMPC64ANHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, rated for 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform. It provides clamping at 103 V under 14.6 A surge current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SMPC64ANHM3/H datasheet, SMPC64ANHM3/H pinout, SMPC64ANHM3/H application, or SMPC64ANHM3/H equivalent, this device is selected for robust overvoltage protection in high-reliability automotive sensor interfaces, power supply rails, and MOSFET gate drivers where low-profile mounting, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical.
Technical Context
This TVS diode operates in avalanche mode to clamp transient overvoltages before they damage downstream ICs or discrete components. Its unidirectional polarity enables integration into DC-biased signal or power lines without reverse conduction during normal operation.
The SMPC64ANHM3/H uses a planar junction structure in a dual-anode/single-cathode configuration (SMPCxxAN variant), enabling symmetrical thermal dissipation when mounted with cathode on heatsink - validated by RθJM = 2.5 °C/W (typ). It meets JESD22-B102 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 71.1 V / 78.6 V at 1.0 mA - ensures reliable avalanche turn-on within defined tolerance band |
| VC @ IPPM | 103 V at 14.6 A - clamping voltage limits stress on protected circuit during 10/1000 μs surge |
| PPPM | 1500 W - peak transient power handling capability per standard IEC 61000-4-5 waveform |
| TJ max | +150 °C - supports operation in under-hood automotive environments |
| Package | SMPC (TO-277A) - 3-terminal SMD package with 1.1 mm typical height for space-constrained PCBs |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements |
Pinout & Package
SMPC64ANHM3/H is housed in the SMPC (TO-277A) surface-mount package: a 3-terminal, low-profile (1.1 mm typ), halogen-free, RoHS-compliant molded case with matte tin-plated leads. The cathode is marked by a band on the body; terminals are arranged as Cathode (pin 1), Anode 1 (pin 2), Anode 2 (pin 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (K) | Clamping output node | Connected to protected line; conducts avalanche current to ground or rail during transients |
| Anode 1 (A1) | Primary anode terminal | Electrically tied to Anode 2 internally; used for PCB layout symmetry and thermal spreading |
| Anode 2 (A2) | Secondary anode terminal | Provides parallel current path and enhanced thermal coupling to copper pour when both anodes are routed to large plane |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm) | Enables use in ultra-thin modules and stacked PCB assemblies without mechanical interference |
| Unidirectional operation | Prevents reverse leakage in DC-biased applications such as 12 V/24 V automotive power rails |
| AEC-Q101 qualification | Validates reliability for automotive ECUs, ADAS sensors, and body control modules |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling |
| Dual-anode thermal design | Reduces thermal resistance to PCB (RθJM = 2.5 °C/W typ) when both anodes connect to thermal pad |
Applications
| Automotive Sensor Interface Protection | DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor front-ends (e.g., temperature, pressure) from load-dump and ISO 7637-2 pulses in vehicle cabins. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and ground to clamp transients before reaching input ESD structures of interface ICs. Use Value: Limits clamping voltage to 103 V while absorbing 1500 W surges, preserving signal integrity and preventing latch-up in precision analog receivers. | Use Scenario: Safeguarding 12 V/24 V power distribution networks in engine control units against alternator load dump events. IC Role / Device Role / Timing Role: Mounted across input rail and chassis ground to shunt high-energy transients away from downstream regulators and microcontrollers. Use Value: Withstands 14.6 A peak pulse current and maintains <103 V clamping, ensuring downstream 3.3 V/5 V supplies remain within safe operating area. |
| MOSFET Gate Driver Protection | Industrial Motor Control Input Stage |
Use Scenario: Shielding high-side and low-side gate drivers in BLDC inverters from Miller-induced voltage spikes and shoot-through transients. IC Role / Device Role / Timing Role: Placed between gate driver output and MOSFET gate to clamp ringing and overshoot exceeding VGS(max). Use Value: Sub-nanosecond response time and low incremental surge resistance minimize gate voltage excursion, reducing risk of unintended FET turn-on. | Use Scenario: Protecting PLC digital input modules from inductive kickback generated by solenoid valves and contactor coils in factory automation systems. IC Role / Device Role / Timing Role: Connected across optocoupler input terminals or directly at field-wire entry points to suppress 1 kV/μs transients. Use Value: 1500 W PPPM rating and 1.0 μA max IR at 64 V ensure stable bias conditions and long-term reliability in harsh industrial EMI environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-H | DO-214AC package; lower PPPM (400 W); single-anode; VBR 71.1–78.6 V same | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for under-hood automotive | Select SMAJ64A-H only for cost-sensitive industrial PCBs where 1500 W surge immunity is not required. |
| SMCJ64A-H | DO-214AB package; same 1500 W PPPM; single-anode; VBR 71.1–78.6 V; taller (2.6 mm) | Higher profile limits use in thin modules; lacks dual-anode thermal advantage; AEC-Q101 available only on HM3 suffix variants | Choose SMCJ64A-H when board space allows greater height and dual-anode thermal optimization is unnecessary. |
Compared with SMAJ64A-H and SMCJ64A-H, SMPC64ANHM3/H delivers superior thermal performance via dual-anode mounting and fits space-constrained automotive layouts - making it the preferred choice when AEC-Q101 compliance, low profile, and high-energy clamping are jointly required.
Availability
SMPC64ANHM3/H is available at Aetrix Electronics and suitable for automotive electronics protection, industrial motor control input stages, and DC power rail clamping requiring stable component supply and full traceability.
Supply support for SMPC64ANHM3/H 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices for industrial, automotive, and computing applications.
The SMPC series was developed specifically for high-power, low-profile transient suppression in automotive and industrial environments where AEC-Q101 qualification, MSL Level 1 reflow, and dual-anode thermal efficiency are essential.
FAQ
What is the clamping voltage of SMPC64ANHM3/H at its rated peak pulse current?
The SMPC64ANHM3/H has a maximum clamping voltage (VC) of 103 V when subjected to its rated peak pulse current (IPPM) of 14.6 A under the standard 10/1000 μs waveform. This value is measured with the cathode mounted on a heatsink and defines the upper voltage limit imposed on the protected circuit during surge events. The clamping performance is guaranteed across the full operating temperature range.
Is SMPC64ANHM3/H suitable for automotive applications?
Yes, SMPC64ANHM3/H is AEC-Q101 qualified and explicitly listed in Vishay's documentation as available in HM3 suffix for automotive-grade reliability. Its construction - including matte tin plating, JESD201 Class 2 whisker resistance, MSL Level 1 reflow rating, and 150 °C maximum junction temperature - meets stringent automotive environmental and manufacturing requirements.
How does the dual-anode configuration of SMPC64ANHM3/H improve thermal performance?
The dual-anode (A1/A2) structure of SMPC64ANHM3/H allows both anodes to be connected to a common thermal pad or copper pour, effectively doubling the conductive path from junction to PCB. This reduces thermal resistance to 2.5 °C/W (typ) junction-to-mount, significantly lowering steady-state and transient temperature rise compared to single-anode alternatives like SMAJ64A-H or SMCJ64A-H.
What is the meaning of the "HM3" suffix in SMPC64ANHM3/H?
The "HM3" suffix in SMPC64ANHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" denotes the tape-and-reel packaging option (1500 pcs per 7-inch reel), while "M3" specifies the base material grade - industrial and automotive compliant per Vishay's material categorization system (Doc. #99912).
Does SMPC64ANHM3/H require derating at elevated ambient temperatures?
Yes, SMPC64ANHM3/H must be derated above TA = 25 °C. Its power dissipation (PD) drops linearly per Figure 2 in the datasheet, with full 1.25 W rating only at 25 °C ambient. At 100 °C ambient, PD is reduced to approximately 0.6 W. Surge current capability (IPPM) also follows the same derating curve, ensuring safe operation across the -55 °C to +150 °C junction temperature range.
SMPC64ANHM3/H 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
SMPC64ANHM3/H FAQ
1.How can I place an order for SMPC64ANHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC64ANHM3/H 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 SMPC64ANHM3/H reliable?
The price and inventory of SMPC64ANHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC64ANHM3/H is usually 5 days.
3.What payment methods are accepted for SMPC64ANHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC64ANHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC64ANHM3/H?
SMPC64ANHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC64ANHM3/H 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 SMPC64ANHM3/H?
For technical support, including SMPC64ANHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC64ANHM3/H requirements.
6.How does Aetrix verify that SMPC64ANHM3/H is sourced from the original manufacturer or authorized distributors?
All SMPC64ANHM3/H 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 SMPC64ANHM3/H meets industry standards.
7.What is the process for return or replacement of SMPC64ANHM3/H?
All SMPC64ANHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC64ANHM3/H, 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 SMPC64ANHM3/H part is unused and in its original packaging.
Return procedure for SMPC64ANHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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