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Vishay General Semiconductor - Diodes Division SMP17-M3/84A
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- Part No.:
- SMP17-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP17-M3/84A.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,160
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Product details
Overview
SMP17-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in DO-220AA (SMP) package, with 17 V standoff voltage (VWM), 18.9–20.9 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 14.5 A peak pulse current (IPPM), and 27.6 V clamping voltage (VC). It protects MOSFETs and ICs in power supply rails and sensor signal lines against inductive switching transients.
For engineers reviewing the SMP17-M3/84A datasheet, SMP17-M3/84A pinout, SMP17-M3/84A application, or SMP17-M3/84A equivalent, this page delivers verified electrical parameters, thermal resistance (RθJL = 50 °C/W), JEDEC MSL Level 1 rating, halogen-free RoHS-compliant construction, and real-world protection use cases for industrial and telecom systems.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (18.9–20.9 V at 1.0 mA test current). Its low clamping ratio (VC/VBR ≈ 1.42) and fast response time ensure effective suppression of transient energy before downstream components are stressed.
Designed for PCB-level surge protection, it uses a single-junction silicon structure with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and meets JESD 201 Class 1A whisker resistance. Thermal performance is defined by RθJA = 250 °C/W and RθJL = 50 °C/W under standard 5.0 mm × 5.0 mm copper pad mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 18.9 V / 20.9 V at 1.0 mA - precise avalanche onset window defining turn-on threshold |
| VC @ IPPM | 27.6 V at 14.5 A - clamped voltage during 10/1000 μs surge, limiting stress on protected circuitry |
| PPPM | 400 W - peak transient power handling capability under standardized waveform |
| IFSM | 40 A - non-repetitive forward surge current tolerance for accidental polarity events |
| TJ max | +150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJL | 50 °C/W - thermal resistance from junction to lead, critical for board-level heat dissipation design |
Pinout & Package
DO-220AA (SMP) package: ultra-low-profile surface-mount case with 1.0 mm typical height, cathode indicated by color band, matte tin-plated leads, UL 94 V-0 molding compound, and M3 suffix denoting halogen-free, RoHS-compliant, commercial-grade construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane during clamping; must be routed with minimal inductance |
| Cathode | Protected line connection / surge input | Connected to line being protected (e.g., 12 V rail or sensor output); marked by visible band |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 3 surges without derating in compact layouts |
| 1.0 mm profile height | Supports ultra-thin end equipment designs and automated placement in high-density PCB assemblies |
| MSL Level 1 (260 °C peak) | Allows single-reflow soldering without moisture sensitivity concerns or baking requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving clamping fidelity |
| JESD 201 Class 1A whisker resistance | Ensures long-term reliability in vibration-prone industrial and automotive-adjacent applications |
Applications
| Power Supply Input Protection | Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V DC input rail of industrial PLC module exposed to relay coil flyback and motor drive coupling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between rail and ground, conducting only during overvoltage events. Use Value: Clamps transients to ≤27.6 V within nanoseconds, preventing latch-up or gate oxide damage in downstream DC-DC controllers and microcontrollers. | Use Scenario: Analog output line (0–10 V) from temperature sensor in factory automation cabinet. IC Role / Device Role / Timing Role: Standoff-rated protector mounted at connector interface, shunting induced surges to chassis ground. Use Value: Maintains <1.0 μA leakage at 17 V, preserving signal accuracy while suppressing >400 W transients from nearby AC contactors. |
| MOSFET Gate Driver Protection | Telecom Line Interface Protection |
Use Scenario: High-side N-channel MOSFET driver in 24 V solenoid control circuit subject to inductive kickback. IC Role / Device Role / Timing Role: Reverse-biased TVS across gate-source terminals to clamp Miller-induced spikes. Use Value: Fast response and low VC limit gate voltage excursion to safe levels (<27.6 V), avoiding unintended turn-on or gate oxide failure. | Use Scenario: Low-voltage control line (≤24 V) interfacing with PSTN or PoE-powered network equipment. IC Role / Device Role / Timing Role: Primary protection element on line side of isolation barrier, rated for repeated surge exposure. Use Value: Withstands 40 A IFSM and 400 W PPPM per event, meeting GR-1089-CORE lightning surge immunity requirements for Class B equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP17A-M3/84A | Same electrical specs and package; identical marking code BR and VBR range (18.9–20.9 V) | No functional difference; SMP17-M3/84A is full part number including packaging code, SMP17A-M3/84A is alternate ordering format | Select SMP17-M3/84A for direct alignment with Vishay's preferred P/N and tape-and-reel delivery mode |
| SMBJ17A | DO-214AA (SMB) package, 2.3 mm height, higher RθJA (≈300 °C/W), same VWM/VBR/VC ratings | Requires larger PCB footprint and revised thermal layout; less suitable for ultra-thin or high-density designs | Choose SMBJ17A only if legacy SMB footprint compatibility or higher surge margin (600 W) is required |
Compared with SMP17A-M3/84A (identical specification), SMP17-M3/84A ensures traceable sourcing and exact packaging compliance; versus SMBJ17A, it delivers 1.3 mm lower profile and 20 % better thermal resistance to lead, enabling tighter thermal management in space-constrained industrial modules.
Availability
SMP17-M3/84A is available at Aetrix Electronics and suitable for industrial PLC power inputs, telecom control line interfaces, sensor signal conditioning circuits, and MOSFET gate driver protection requiring stable component supply and consistent MSL Level 1 reflow compatibility.
Supply support for SMP17-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, and transient protection devices with emphasis on reliability, precision, and application-specific optimization.
The SMP series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for next-generation industrial, computing, and communications equipment where board space and thermal constraints are critical.
FAQ
What is the standoff voltage rating of the SMP17-M3/84A?
The SMP17-M3/84A has a reverse stand-off voltage (VWM) of 17 V, meaning it remains non-conductive up to this DC or continuous AC voltage level. This value is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88481, and defines the maximum operating voltage before significant leakage current begins. The SMP17-M3/84A maintains <1.0 μA reverse leakage at 17 V, ensuring minimal impact on protected circuits during normal operation.
Does the SMP17-M3/84A meet RoHS and halogen-free requirements?
Yes, the SMP17-M3/84A carries the M3 suffix, which explicitly denotes halogen-free construction per JEDEC JS709A and RoHS compliance per EU Directive 2011/65/EU. This is stated in the Mechanical Data section of Vishay document 88481, and confirmed by Vishay's Material Categorization policy (doc?99912). The SMP17-M3/84A is certified for commercial-grade applications with no exemptions applied.
What is the clamping voltage of the SMP17-M3/84A under surge conditions?
The SMP17-M3/84A exhibits a maximum clamping voltage (VC) of 27.6 V when subjected to its rated peak pulse current (IPPM) of 14.5 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and published in the Electrical Characteristics table. The SMP17-M3/84A achieves this clamping performance while maintaining low incremental surge resistance, directly limiting voltage stress on downstream ICs.
Can the SMP17-M3/84A be used in place of through-hole TVS diodes?
The SMP17-M3/84A is a surface-mount device in DO-220AA (SMP) package and is not a drop-in replacement for through-hole parts like P6KE17A. Its 1.0 mm height and 0.142" × 0.126" footprint require dedicated SMT layout. While it provides equivalent 17 V protection, the SMP17-M3/84A demands optimized PCB pad design (5.0 mm × 5.0 mm copper per terminal) and reflow profiling per J-STD-020 MSL Level 1. Substitution requires full layout and thermal validation.
What is the maximum operating temperature for the SMP17-M3/84A?
The SMP17-M3/84A has a maximum junction temperature (TJ max) of +150 °C, as specified in the Maximum Ratings table of Vishay document 88481. This allows reliable operation in industrial environments where ambient temperatures reach +85 °C, provided PCB thermal design achieves adequate heat dissipation-especially given its RθJA of 250 °C/W. Derating curves in Figure 2 confirm usable power capability down to 50 % at 125 °C ambient.
SMP17-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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)
SMP17-M3/84A FAQ
1.How can I place an order for SMP17-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP17-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 SMP17-M3/84A reliable?
The price and inventory of SMP17-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 SMP17-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP17-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP17-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP17-M3/84A?
SMP17-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP17-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 SMP17-M3/84A?
For technical support, including SMP17-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP17-M3/84A requirements.
6.How does Aetrix verify that SMP17-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP17-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 SMP17-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP17-M3/84A?
All SMP17-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP17-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 SMP17-M3/84A part is unused and in its original packaging.
Return procedure for SMP17-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP17-M3/84A Tags
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