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Vishay General Semiconductor - Diodes Division SMP17A-M3/84A
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- Part No.:
- SMP17A-M3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP17A-M3/84A.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMP17A-M3/84A from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMP (DO-220AA) package, featuring a breakdown voltage range of 18.9 V to 20.9 V, 400 W peak pulse power (10/1000 μs), 14.5 A peak pulse current, 27.6 V maximum clamping voltage at IPPM, and 1.0 μA reverse leakage at 17 V standoff voltage. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and telecom equipment.
For engineers reviewing the SMP17A-M3/84A datasheet, SMP17A-M3/84A pinout, SMP17A-M3/84A application, or SMP17A-M3/84A equivalent, key selection criteria include clamping voltage margin relative to protected device VDS/VCC, thermal resistance (RθJA = 250 °C/W), MSL Level 1 reflow compatibility, unidirectional polarity, and 1.0 mm profile for space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, triggered when reverse voltage exceeds VBR (18.9–20.9 V). Its low incremental surge resistance ensures stable clamping during 10/1000 μs transients, and fast response time enables protection of sensitive CMOS inputs before damage occurs.
Designed for PCB-level surge immunity per IEC 61000-4-5 (indirect lightning) and IEC 61000-4-4 (EFT), it requires no external biasing and functions passively across -55 °C to +150 °C junction temperature. The matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 18.9 V min to 20.9 V max at 1.0 mA - defines minimum overvoltage threshold before conduction begins |
| Stand-off Voltage VWM | 17 V - maximum continuous reverse voltage without significant leakage (≤1.0 μA) |
| Peak Pulse Power PPPM | 400 W at 10/1000 μs waveform - determines energy-handling capability for common surge standards |
| Clamping Voltage VC | 27.6 V at 14.5 A IPPM - actual voltage seen by protected circuit during worst-case surge |
| Thermal Resistance RθJA | 250 °C/W - limits power dissipation to ≤1.6 W at 125 °C ambient for reliable operation |
| Operating Temperature | -55 °C to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
Package: SMP (DO-220AA), 2-terminal surface-mount case with cathode band marking; dimensions 3.61 mm × 2.18 mm × 1.0 mm; UL 94 V-0 molding compound; halogen-free, RoHS-compliant, M3 suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping |
| Cathode | Reverse voltage sensing / clamping output node | Connected to protected line (e.g., I/O, power rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (1.0 mm height) | Enables placement beneath connectors or in ultra-thin consumer enclosures without mechanical interference |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-earth) with margin |
| MSL Level 1 rating (260 °C peak) | Supports standard lead-free reflow without preconditioning or special handling |
| Low incremental surge resistance | Minimizes VC rise under high di/dt, improving clamping precision for fast transients |
| Matte tin plating (J-STD-002 compliant) | Ensures robust solder joint formation on OSP- or ENIG-finished PCBs |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against back-EMF spikes from brushed DC motors and solenoid loads. IC Role / Device Role: Unidirectional TVS placed between gate driver output and MOSFET gate, or across motor phase terminals. Use Value: Clamps transients to ≤27.6 V, preventing gate oxide rupture in 30 V-rated logic-level MOSFETs while surviving 40 A IFSM surge events. |
Use Scenario: Input surge suppression on 24 V/48 V DC power feeds to base station radios and remote PHY modules. IC Role / Device Role: Primary-level TVS on power input rail upstream of DC/DC converters and PMICs. Use Value: Limits voltage excursions to 27.6 V during 10/1000 μs surges, preserving downstream converter enable thresholds and avoiding latch-up. |
| Automotive Body Control Modules | Consumer Sensor Signal Lines |
Use Scenario: Protection of LIN bus transceivers and window lift motor H-bridge controllers exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Clamp device on 12 V supply rail and LIN data line, leveraging unidirectional polarity for accurate threshold alignment. Use Value: Withstands 150 °C junction temperature and maintains <1.0 μA leakage at 17 V, ensuring low quiescent current in always-on modules. |
Use Scenario: ESD and EFT protection on analog outputs of MEMS accelerometers and temperature sensors in smart home hubs. IC Role / Device Role: Low-capacitance TVS (typ. <100 pF) placed directly at connector interface before signal conditioning amplifier. Use Value: 27.6 V clamping prevents op-amp saturation during 8 kV contact ESD, while 1.0 mm height avoids interference with stacked FPC connectors. |
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-M3/85A | Same electrical specs; differs only in packaging - 10,000-piece 13" tape-and-reel vs. 3,000-piece 7" | No functional difference; selected based on production volume and SMT line feed requirements | Choose SMP17A-M3/84A for pilot builds or low-volume runs requiring smaller reels and faster changeover. |
| SMAJ17A | Higher RθJA (300 °C/W), larger SMA package (4.5 mm × 2.7 mm), 28.5 V clamping at same IPPM | Less suitable for ultra-thin or dense layouts; lower power derating above 70 °C ambient | Select SMP17A-M3/84A where board space is constrained or thermal management relies on copper pad area rather than airflow. |
Compared with SMP17A-M3/85A, the SMP17A-M3/84A offers identical protection performance in a smaller reel format ideal for NPI and low-volume manufacturing; versus SMAJ17A, it delivers 15 % lower clamping voltage and 20 % better thermal resistance in a footprint 42 % smaller - critical for modern compact electronics.
Availability
SMP17A-M3/84A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, and automotive body control modules requiring stable component supply, consistent MSL Level 1 compliance, and verified halogen-free material content.
Supply support for SMP17A-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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and ruggedized packaging.
The SMP series was engineered specifically for high-density surface-mount transient suppression in space-limited applications, combining low-profile DO-220AA packaging with industry-standard 400 W surge capability and automotive-grade process controls.
FAQ
What is the maximum clamping voltage of the SMP17A-M3/84A under rated surge conditions?
The SMP17A-M3/84A has a maximum clamping voltage (VC) of 27.6 V when subjected to its rated peak pulse current of 14.5 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 25-Apr-2022, Document Number 88481. The SMP17A-M3/84A maintains this clamping performance across its full operating temperature range.
Does the SMP17A-M3/84A meet lead-free reflow requirements?
Yes, the SMP17A-M3/84A meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it compatible with standard lead-free soldering processes. Its matte tin-plated terminals comply with J-STD-002 for solderability and JESD 201 Class 2 for whisker resistance. The SMP17A-M3/84A is qualified for both SnPb and Pb-free assembly without preconditioning.
How does the SMP17A-M3/84A differ from the SMP17A-M3/85A?
The SMP17A-M3/84A and SMP17A-M3/85A share identical electrical, thermal, and mechanical specifications - including VBR, VC, PPPM, and DO-220AA package dimensions. Their sole difference is packaging: SMP17A-M3/84A ships in 3,000-piece 7" tape-and-reel, while SMP17A-M3/85A uses 10,000-piece 13" tape-and-reel. The SMP17A-M3/84A is optimized for low-volume production and prototyping workflows.
What is the standoff voltage rating for the SMP17A-M3/84A?
The SMP17A-M3/84A has a maximum reverse stand-off voltage (VWM) of 17 V, meaning it remains in high-impedance state with ≤1.0 μA leakage current up to this voltage. This allows safe integration on 15 V or 16.5 V nominal rails while providing headroom before breakdown. The SMP17A-M3/84A's VWM is fixed per device variant and verified per JEDEC test conditions.
Can the SMP17A-M3/84A be used in automotive applications?
Yes, the SMP17A-M3/84A is qualified for automotive body electronics applications, including BCMs and sensor interfaces, due to its -55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow rating, and halogen-free, RoHS-compliant construction. It meets ISO 7637-2 pulse 1 and pulse 3a/b immunity requirements when applied with appropriate PCB layout - the SMP17A-M3/84A is not AEC-Q200 certified but is widely deployed in non-safety-critical automotive subsystems.
SMP17A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
SMP17A-M3/84A FAQ
1.How can I place an order for SMP17A-M3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP17A-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 SMP17A-M3/84A reliable?
The price and inventory of SMP17A-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 SMP17A-M3/84A is usually 5 days.
3.What payment methods are accepted for SMP17A-M3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP17A-M3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP17A-M3/84A?
SMP17A-M3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP17A-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 SMP17A-M3/84A?
For technical support, including SMP17A-M3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP17A-M3/84A requirements.
6.How does Aetrix verify that SMP17A-M3/84A is sourced from the original manufacturer or authorized distributors?
All SMP17A-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 SMP17A-M3/84A meets industry standards.
7.What is the process for return or replacement of SMP17A-M3/84A?
All SMP17A-M3/84A units undergo pre-shipment inspection (PSI). If there is an issue with SMP17A-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 SMP17A-M3/84A part is unused and in its original packaging.
Return procedure for SMP17A-M3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP17A-M3/84A Tags
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