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Vishay General Semiconductor - Diodes Division SMPC36A-M3/87A
- Part No.:
- SMPC36A-M3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC36A-M3/87A.pdf
- Description:
- TVS DIODE 36VWM 58.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,666
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Product details
Overview
SMPC36A-M3/87A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMPC (TO-277A) package, designed for clamping transients up to 1500 W (10/1000 μs), with a standoff voltage of 36.0 V, clamping voltage of 58.1 V at 25.8 A, and maximum junction temperature of +150 °C. It protects MOSFETs, ICs, and sensor signal lines in automotive, industrial, and telecom systems against inductive switching surges.
For engineers reviewing the SMPC36A-M3/87A datasheet, SMPC36A-M3/87A pinout, SMPC36A-M3/87A application, or SMPC36A-M3/87A equivalent, key selection criteria include unidirectional polarity, 36 V stand-off rating, 1500 W peak pulse power, low-profile 1.1 mm height, and AEC-Q101 qualification eligibility via HM3 suffix variants.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp transient overvoltages before they damage downstream circuitry. Its unidirectional configuration allows integration into DC-biased lines where reverse conduction must be blocked except during surge events.
The device uses a planar junction structure in a molded SMPC (TO-277A) package with dual anode terminals and a common cathode, enabling high-current surge handling while maintaining low incremental surge resistance and fast sub-nanosecond response time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.0 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; sets upper limit for normal DC bias tolerance. |
| VBR min/max | 40.0 V / 44.2 V at 1.0 mA - Breakdown voltage range defining reliable avalanche initiation threshold under test conditions. |
| VC @ IPPM | 58.1 V at 25.8 A - Clamped voltage during 10/1000 μs surge; determines maximum stress imposed on protected ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; defines transient energy absorption capacity per standardized waveform. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables operation in under-hood or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on FR4 PCB; informs derating requirements above 25 °C ambient. |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, halogen-free, RoHS-compliant, MSL level 1, 260 °C reflow compatible. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H). Cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry terminal during forward conduction | Connected to protected line's positive side; forms one half of dual-anode parallel path for surge current sharing. |
| Anode 2 | Secondary current entry terminal during forward conduction | Parallel anode path improves current distribution and reduces localized heating during high IPPM events. |
| Cathode | Common surge current return node | Connected to ground or low-impedance reference; carries full IPPM current during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.1 mm height) | Enables use in space-constrained layouts such as automotive ECUs and portable industrial sensors without compromising thermal clearance. |
| Unidirectional polarity | Prevents reverse conduction during normal operation while allowing robust clamping of positive-going transients on DC-biased lines. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a), improving protection margin for sensitive gate drivers. |
| Meets MSL level 1 | Supports standard SMT reflow profiles up to 260 °C peak without moisture-induced failure, eliminating bake-out requirements. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in body control modules from load-dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery input and upstream DC/DC converter input. Use Value: Limits transient voltage to ≤58.1 V, preventing latch-up or overvoltage damage to 40 V-rated input stages of buck controllers. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) transient suppressor mounted at connector interface, shunting surge energy to chassis ground. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <60 V within <1 ns, preserving signal integrity and ADC accuracy. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding 48 V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail upstream of PoE interface controller and isolation transformer. Use Value: Absorbs 1500 W peak pulses without degradation, maintaining system uptime during field-deployed surge events. | Use Scenario: Adding secondary-level surge immunity to USB VBUS lines in smart home hubs exposed to accidental AC mains coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between USB connector and USB switch IC, rated for 36 V nominal bus voltage. Use Value: Blocks >36 V transients while leaking <1 μA at 36 V, ensuring no impact on USB enumeration or charging compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | DO-214AC package; 36 V VWM, 58.1 V VC @ 25.8 A, but lower PPPM (400 W); single-anode construction. | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump. | Select when board space permits larger footprint and surge energy is <400 W. |
| SMCJ36A | SMC (DO-214AB) package; same 36 V VWM, 58.1 V VC, 1500 W PPPM, but 2.3 mm height and higher RθJA (150 °C/W). | Higher thermal resistance requires larger copper area or forced cooling for sustained surge duty. | Choose when legacy layout accommodates SMC and cost is prioritized over profile. |
Compared with SMAJ36A-E3/5A and SMCJ36A, SMPC36A-M3/87A delivers identical clamping performance and surge rating in a 1.1 mm low-profile package optimized for automated placement and high-density automotive PCBs-without sacrificing thermal or electrical robustness.
Availability
SMPC36A-M3/87A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMPC36A-M3/87A 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, automotive qualification, and high-volume manufacturability.
The SMPC series was developed specifically for high-energy transient suppression in space-constrained, high-reliability applications-including AEC-Q101-qualified variants-where low profile, robust surge handling, and automated assembly compatibility are critical.
FAQ
What is the standoff voltage rating of SMPC36A-M3/87A?
The SMPC36A-M3/87A has a maximum reverse stand-off voltage (VWM) of 36.0 V, meaning it remains non-conductive with leakage current ≤1.0 μA up to this DC or RMS voltage. This rating ensures compatibility with 36 V nominal systems such as 24 V automotive auxiliary rails and industrial 36 V power supplies, and is confirmed in the Vishay Document Number 89116, Table on page 2.
Does SMPC36A-M3/87A meet automotive qualification standards?
The SMPC36A-M3/87A itself is not AEC-Q101 qualified; only the HM3-suffix variants (e.g., SMPC36ANHM3) carry that qualification. However, SMPC36A-M3/87A shares the same SMPC (TO-277A) package, material composition, and electrical characteristics, making it suitable for non-automotive industrial and telecom applications where AEC-Q101 is not mandated.
What is the clamping voltage of SMPC36A-M3/87A under surge conditions?
The SMPC36A-M3/87A clamps to a maximum of 58.1 V when subjected to its rated peak pulse current of 25.8 A (10/1000 μs waveform), as specified in Vishay Document Number 89116, page 2. This clamping voltage defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMPC36A-M3/87A be used in bidirectional configurations?
No-SMPC36A-M3/87A is strictly unidirectional, with a cathode band marking and internal dual-anode/single-cathode structure. For bidirectional transient suppression, Vishay offers the SMPC36CA variant (not SMPC36A-M3/87A), which features symmetrical breakdown in both polarities and different marking codes.
What packaging format does SMPC36A-M3/87A ship in?
SMPC36A-M3/87A ships in 13-inch diameter plastic tape and reel, with a base quantity of 6500 units per reel, as defined in the Vishay ordering information table (Document Number 89116, page 3). The /87A suffix explicitly denotes this large-reel packaging option for high-volume SMT production.
SMPC36A-M3/87A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
SMPC36A-M3/87A FAQ
1.How can I place an order for SMPC36A-M3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC36A-M3/87A 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 SMPC36A-M3/87A reliable?
The price and inventory of SMPC36A-M3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC36A-M3/87A is usually 5 days.
3.What payment methods are accepted for SMPC36A-M3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC36A-M3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC36A-M3/87A?
SMPC36A-M3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC36A-M3/87A 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 SMPC36A-M3/87A?
For technical support, including SMPC36A-M3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC36A-M3/87A requirements.
6.How does Aetrix verify that SMPC36A-M3/87A is sourced from the original manufacturer or authorized distributors?
All SMPC36A-M3/87A 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 SMPC36A-M3/87A meets industry standards.
7.What is the process for return or replacement of SMPC36A-M3/87A?
All SMPC36A-M3/87A units undergo pre-shipment inspection (PSI). If there is an issue with SMPC36A-M3/87A, 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 SMPC36A-M3/87A part is unused and in its original packaging.
Return procedure for SMPC36A-M3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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