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Vishay General Semiconductor - Diodes Division SMPC36ANHM3/H
- Part No.:
- SMPC36ANHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC36ANHM3/H.pdf
- Description:
- TVS DIODE 36VWM 58.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,101
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Product details
Overview
SMPC36ANHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the TRANSZORB® family, designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 36.0 V stand-off voltage (VWM), 40.0–44.2 V breakdown range (VBR), 1500 W peak pulse power (10/1000 μs), 58.1 V maximum clamping voltage at 25.8 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMPC36ANHM3/H datasheet, SMPC36ANHM3/H pinout, SMPC36ANHM3/H application, or SMPC36ANHM3/H equivalent, this device is selected for high-energy surge protection in automotive powertrain control units, industrial motor drives, DC-DC converter input rails, and sensor interface circuits where low-profile SMT placement and robust junction temperature handling up to +150 °C are required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (36.0 V), it avalanches at VBR (min 40.0 V), limiting transient voltage to ≤58.1 V at 25.8 A peak pulse current. Its TO-277A (SMPC) package enables thermal coupling to PCB copper for enhanced power dissipation.
Designed for automotive-grade reliability, SMPC36ANHM3/H meets AEC-Q101 stress testing requirements and is halogen-free, RoHS-compliant, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. It exhibits very fast response time and low incremental surge resistance-key for protecting MOSFETs and ICs against ISO 7637-2 and IEC 61000-4-5 surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 40.0 V / 44.2 V - breakdown occurs within this range at 1.0 mA test current, defining turn-on threshold |
| VC @ IPPM | 58.1 V - clamped voltage across device at 25.8 A peak pulse current (10/1000 μs), limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling capability under standardized surge waveform |
| TJ max. | +150 °C - maximum junction temperature rating, enabling operation in under-hood automotive environments |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm typical height), dual-anode/cathode configuration |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes polarity |
Pinout & Package
SMPC36ANHM3/H uses the SMPC (TO-277A) package: a 3-terminal, low-profile surface-mount outline with dual anodes and a common cathode. The cathode band identifies the cathode terminal; terminals are matte tin-plated for reliable solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Current entry during clamping | One of two parallel anode connections; shares current path with Anode 2 to reduce effective surge resistance |
| Anode 2 | Current entry during clamping | Second anode terminal; enables symmetrical current sharing and improved thermal distribution across die |
| Cathode (banded end) | Clamped output node | Common cathode connection where clamped voltage (VC) is measured; must be routed to protected circuit ground or return |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm typical height) | Enables integration into space-constrained automotive ECUs and portable industrial sensors without mechanical interference |
| AEC-Q101 qualified | Validated for automotive applications including powertrain, chassis, and body electronics per stress test requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump, inductive kickback) |
| Meets MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture-related reliability risk |
| Dual-anode architecture | Reduces effective series resistance and improves current sharing versus single-anode TVS devices of comparable rating |
Applications
| Automotive Powertrain Control Unit | Industrial Motor Drive Input Stage |
|---|---|
Use Scenario: Protecting microcontroller power rails and gate driver supplies from alternator load dump and relay coil flyback in engine control modules. IC Role / Device Role / Timing Role: Shunt clamping device placed directly at power input pins to limit transient voltage to safe levels before reaching sensitive logic and analog circuitry. Use Value: Withstands 1500 W peak pulses and clamps to ≤58.1 V, preventing latch-up or permanent damage to 3.3 V/5 V supply regulators and MCU I/O. | Use Scenario: Safeguarding DC bus inputs of variable-frequency drives against switching surges from contactor opening and regenerative braking energy spikes. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on main DC link, activated within nanoseconds to suppress >100 V transients before capacitor overvoltage failure. Use Value: Dual-anode structure lowers dynamic impedance, ensuring stable clamping even under repetitive 25.8 A surge conditions at elevated ambient temperatures. |
| Automotive Sensor Interface (e.g., ABS Wheel Speed) | DC-DC Converter Input Protection |
Use Scenario: Shielding Hall-effect and magnetoresistive sensor signal conditioning circuits from ESD and cable discharge events in wheel-well environments. IC Role / Device Role / Timing Role: Unidirectional TVS placed on differential signal lines and supply pins to absorb ±8 kV contact ESD (IEC 61000-4-2) without disrupting low-noise analog performance. Use Value: Low leakage (<1.0 μA at 36 V) preserves signal integrity; 1.1 mm height avoids interference with nearby magnetic components. | Use Scenario: Guarding buck converter front-end against input surges from battery hot-swap, jump-start, and ISO 7637-2 Pulse 5a/b events in vehicle infotainment systems. IC Role / Device Role / Timing Role: Primary overvoltage suppression element between battery feed and converter input capacitor, sized to handle 1500 W surges without degradation. Use Value: AEC-Q101 qualification ensures long-term reliability under thermal cycling and vibration; RθJA ≤100 °C/W supports sustained operation at TA = 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | DO-214AC (SMA) package; 36 V VWM; 58.1 V VC; 1500 W PPPM; not AEC-Q101 qualified | Lacks automotive qualification; higher profile (2.3 mm); lower thermal performance due to single-anode construction | Select when cost sensitivity outweighs automotive compliance and board space allows larger footprint. |
| TPSMD36CA | Bi-directional configuration; same VWM/VC ratings; 1500 W PPPM; AEC-Q101 qualified; DO-214AB (SMC) package | Protects against both polarities-suitable for AC-coupled or floating signal lines-but adds capacitance and lacks dual-anode low-Rsurge advantage | Choose for bidirectional surge threats (e.g., antenna ports, isolated interfaces) where polarity reversal risk exists. |
Compared with SMAJ36A-E3/5A and TPSMD36CA, SMPC36ANHM3/H delivers superior surge current sharing and lower thermal resistance in a lower-profile AEC-Q101-qualified package-making it optimal for space-limited, high-reliability automotive power rail protection where unidirectional threat models dominate.
Availability
SMPC36ANHM3/H is available at Aetrix Electronics and suitable for automotive powertrain control units, industrial motor drive input stages, and DC-DC converter input protection requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMPC36ANHM3/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The TRANSZORB® TVS family-including SMPC36ANHM3/H-is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems demanding AEC-Q101 compliance and robust surge immunity.
FAQ
What is the clamping voltage of SMPC36ANHM3/H at its rated peak pulse current?
The SMPC36ANHM3/H has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 25.8 A under a 10/1000 μs waveform. This value is measured with the cathode mounted on heatsink per the datasheet test condition, and defines the upper voltage limit imposed on protected circuitry during surge events. SMPC36ANHM3/H maintains this clamping performance across its specified operating temperature range.
Is SMPC36ANHM3/H suitable for automotive applications?
Yes, SMPC36ANHM3/H is AEC-Q101 qualified and specifically designated for automotive use, as indicated by the "HM3" suffix. It is validated for stress tests including temperature cycling, humidity bias, and mechanical shock, and is recommended for powertrain, chassis, and body electronics. SMPC36ANHM3/H meets MSL Level 1 and is halogen-free and RoHS-compliant-fulfilling key automotive supply chain requirements.
What does the "HM3" suffix mean in SMPC36ANHM3/H?
The "HM3" suffix in SMPC36ANHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" denotes the tape-and-reel packaging option (1500 units per 7-inch reel), while "M3" specifies the industrial- and automotive-grade material set. This distinguishes SMPC36ANHM3/H from non-automotive variants like SMPC36A-M3, which lack AEC-Q101 validation.
How is the polarity configured on SMPC36ANHM3/H?
SMPC36ANHM3/H is a unidirectional TVS diode with cathode denoted by a band on the package. Its internal structure features two anode terminals (Anode 1 and Anode 2) and one common cathode terminal. When reverse-biased above VWM (36.0 V), it conducts from either anode to cathode-providing symmetric surge current handling. Polarity must be observed during PCB layout to ensure correct clamping direction.
What is the thermal resistance of SMPC36ANHM3/H, and how does it affect design?
SMPC36ANHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 85 °C/W and a maximum of 100 °C/W when mounted on a standard FR4 PCB with 2 oz. copper. Its junction-to-mount (RθJM) is 2.5–3.0 °C/W, indicating strong thermal coupling to heatsink planes. These values allow designers to calculate safe power derating above 25 °C ambient and confirm that SMPC36ANHM3/H remains within its +150 °C TJ limit under expected surge duty cycles.
SMPC36ANHM3/H 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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)
SMPC36ANHM3/H FAQ
1.How can I place an order for SMPC36ANHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC36ANHM3/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 SMPC36ANHM3/H reliable?
The price and inventory of SMPC36ANHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC36ANHM3/H is usually 5 days.
3.What payment methods are accepted for SMPC36ANHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC36ANHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC36ANHM3/H?
SMPC36ANHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC36ANHM3/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 SMPC36ANHM3/H?
For technical support, including SMPC36ANHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC36ANHM3/H requirements.
6.How does Aetrix verify that SMPC36ANHM3/H is sourced from the original manufacturer or authorized distributors?
All SMPC36ANHM3/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 SMPC36ANHM3/H meets industry standards.
7.What is the process for return or replacement of SMPC36ANHM3/H?
All SMPC36ANHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMPC36ANHM3/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 SMPC36ANHM3/H part is unused and in its original packaging.
Return procedure for SMPC36ANHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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