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Vishay General Semiconductor - Diodes Division SMP36-M3/84A
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- Part No.:
- SMP36-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP36-M3/84A.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,920
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Product details
Overview
SMP36-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 36 V stand-off voltage (VWM), 400 W peak pulse power (10/1000 μs), 58.1 V maximum clamping voltage at 6.9 A, 1.0 mm profile, and DO-220AA (SMP) package - used in industrial sensor protection and telecom power input stages.
For engineers reviewing the SMP36-M3/84A datasheet, SMP36-M3/84A pinout, SMP36-M3/84A application, or SMP36-M3/84A equivalent, key selection criteria include clamping voltage vs. protected IC VDD, IPPM derating above 25 °C, thermal resistance (RθJA = 250 °C/W), unidirectional polarity, and MSL Level 1 reflow compatibility.
Technical Context
The SMP36-M3/84A operates as a silicon avalanche diode with precise breakdown voltage (40.0–44.2 V at 1 mA), enabling fast response (<1 ns) to ESD and surge events. Its low incremental surge resistance ensures stable clamping under high-current transients, while the DO-220AA package supports automated placement and meets JESD201 Class 1A whisker resistance.
It is rated for 150 °C maximum junction temperature and exhibits 2.5 V forward voltage at 25 A, supporting robust surge handling in DC power rail protection. Thermal performance is defined by RθJL = 50 °C/W and RθJA = 250 °C/W on standard 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin. |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Ensures reliable avalanche initiation within tight tolerance for predictable protection threshold. |
| VC @ IPPM | 58.1 V at 6.9 A (10/1000 μs) - Defines worst-case voltage seen by downstream circuit during rated surge event. |
| PPPM | 400 W - Peak pulse power handling capacity; determines survivability against standardized lightning/surge waveforms. |
| IFSM | 40 A - Single half-sine surge current rating (10 ms); validates robustness against inrush or fault currents. |
| TJ max | +150 °C - Enables operation in high-temperature industrial environments without thermal shutdown. |
| RθJA | 250 °C/W - Thermal resistance from junction to ambient; informs PCB copper pad sizing and layout cooling requirements. |
Pinout & Package
Package: DO-220AA (SMP), surface-mount, unidirectional, cathode denoted by color band. Dimensions: 2.67 mm × 1.27 mm × 1.0 mm (L × W × H), 0.635 mm lead pitch, matte tin-plated terminals compliant with J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lower-potential rail; defines clamping path directionality. |
| Cathode | Protected line connection | Connected to line being protected (e.g., 36 V supply rail); voltage clamped relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 Level 3/4 surge immunity testing for industrial equipment. |
| 1.0 mm typical height | Enables ultra-thin PCB designs in space-constrained telecom modules and portable industrial sensors. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture-related popcorn failure. |
| Halogen-free, RoHS-compliant, JESD201 Class 1A | Meets global environmental regulations and mitigates tin whisker risk in long-life embedded systems. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for 3.3 V–5 V logic interfaces. |
Applications
| Industrial Sensor Protection | Telecom Power Input |
|---|---|
Use Scenario: Protecting 24–36 V DC input rails of RS-485 sensor nodes against inductive kickback from solenoid drivers and nearby lightning coupling. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between rail and ground, absorbing >95 % of 400 W surge energy within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in isolated power supplies and signal conditioners by limiting rail excursion to ≤58.1 V. |
Use Scenario: Safeguarding primary-side DC-DC converter inputs in telecom base station power modules exposed to AC line surges and hot-swap transients. IC Role / Device Role / Timing Role: Front-end overvoltage clamp on 36 V intermediate bus, coordinated with upstream fuses and MOVs. Use Value: Maintains system uptime by surviving repeated 10/1000 μs surges up to 6.9 A without degradation, per IEC 61000-4-5. |
| Automotive Body Control Module | Consumer Appliance Motor Drive |
Use Scenario: Suppressing load-dump transients on 12 V–36 V auxiliary power domains in BCMs, where alternator regulation failure can generate 60 V spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS on microcontroller supply rail, activated only during overvoltage events exceeding 36 V. Use Value: Extends MCU lifetime by clamping transients to 58.1 V - below absolute maximum ratings of automotive-grade 3.3 V/5 V regulators. |
Use Scenario: Shielding motor driver ICs and Hall-effect position sensors in washing machine control boards from commutation noise and relay bounce. IC Role / Device Role / Timing Role: Localized TVS on 24 V logic supply and 36 V motor enable line, mounted adjacent to connectors. Use Value: Reduces field return rates by preventing false resets and analog offset drift caused by sub-μs voltage spikes on sensitive analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP36A-M3/84A | Same electrical specs and package; identical marking code CP and VBR range (40.0–44.2 V). No functional difference. | No application difference - direct revision-equivalent part per Vishay documentation. | Select SMP36A-M3/84A when sourcing from distributors listing full family nomenclature; SMP36-M3/84A is legacy shorthand. |
| SMBJ36A-E3/52 | DO-214AA (SMB) package (2.92 mm × 4.45 mm × 2.29 mm), higher RθJA (~150 °C/W), same VWM/VC but 600 W PPPM. | Better thermal mass for infrequent high-energy surges; less suitable for ultra-thin or high-density layouts. | Choose SMBJ36A-E3/52 only if board space allows larger footprint and higher surge margin is prioritized over height and density. |
Compared with SMP36-M3/84A, SMP36A-M3/84A offers identical protection performance in the same compact DO-220AA package, while SMBJ36A-E3/52 trades 1.0 mm height and 30 % smaller footprint for greater surge energy handling and higher thermal mass - making it viable only where PCB real estate permits.
Availability
SMP36-M3/84A is available at Aetrix Electronics and suitable for industrial sensor protection, telecom power input staging, and automotive body control module designs requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow capability.
Supply support for SMP36-M3/84A 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, precision, and application-specific optimization.
The eSMP® Series - including SMP36-M3/84A - was engineered for ultra-low-profile, high-power-density transient suppression in space-constrained industrial and telecom systems where traditional SMB/SMA packages exceed height budgets.
FAQ
What is the exact breakdown voltage range for SMP36-M3/84A?
The SMP36-M3/84A has a specified breakdown voltage (VBR) range of 40.0 V to 44.2 V at 1 mA test current, per Vishay Document 88481. This range ensures consistent avalanche initiation across production lots and defines the minimum overvoltage threshold at which the device begins clamping. The SMP36-M3/84A achieves this tolerance using tightly controlled silicon processing and on-wafer screening.
Does SMP36-M3/84A support lead-free reflow soldering?
Yes, SMP36-M3/84A is qualified for lead-free reflow with a maximum peak temperature of 260 °C and meets MSL Level 1 per J-STD-020. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards. The SMP36-M3/84A's molding compound also satisfies UL 94 V-0 flammability requirements, ensuring process compatibility and safety in high-volume SMT lines.
How does the clamping voltage of SMP36-M3/84A compare to its stand-off voltage?
The SMP36-M3/84A has a stand-off voltage (VWM) of 36 V and a maximum clamping voltage (VC) of 58.1 V at 6.9 A (10/1000 μs waveform). This 22.1 V differential represents the worst-case voltage overshoot seen by protected circuitry during a rated surge. The SMP36-M3/84A maintains this clamping performance due to low incremental surge resistance and optimized junction design.
Is SMP36-M3/84A unidirectional or bidirectional?
SMP36-M3/84A is a unidirectional transient voltage suppressor, indicated by its single cathode band marking and specified VBR/VWM parameters for reverse-biased operation. It conducts only when the cathode is positive relative to the anode, making it suitable for DC rail protection. Bidirectional variants (e.g., SMP36CA) are separate part numbers not applicable to SMP36-M3/84A.
What is the thermal resistance of SMP36-M3/84A, and how does it affect layout?
The SMP36-M3/84A has a typical junction-to-ambient thermal resistance (RθJA) of 250 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value directly impacts PCB copper area requirements: reducing pad size increases junction temperature rise during surge events. For sustained reliability, the SMP36-M3/84A must be placed on thermally robust land patterns per Vishay's recommended layout in Document 88481.
SMP36-M3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- TransZorb®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- Power - Peak Pulse:
- 400W
- 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:
- DO-220AA (SMP)
SMP36-M3/84A FAQ
1.How can I place an order for SMP36-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP36-M3/84A 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 SMP36-M3/84A reliable?
The price and inventory of SMP36-M3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP36-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP36-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP36-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP36-M3/84A?
SMP36-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP36-M3/84A 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 SMP36-M3/84A?
For technical support, including SMP36-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP36-M3/84A requirements.
6.How does Aetrix verify that SMP36-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP36-M3/84A 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 SMP36-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP36-M3/84A?
All SMP36-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP36-M3/84A, 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 SMP36-M3/84A part is unused and in its original packaging.
Return procedure for SMP36-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP36-M3/84A Tags
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