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Vishay General Semiconductor - Diodes Division SMP13A-M3/85A
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- Part No.:
- SMP13A-M3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
SMP13A-M3/85A.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,750
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Product details
Overview
SMP13A-M3/85A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the eSMP® Series, designed for clamping voltage transients on power and signal lines. It features a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 400 W peak pulse power (10/1000 μs), 18.6 A peak pulse current (IPPM), and clamps to 21.5 V at IPPM. Used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMP13A-M3/85A datasheet, SMP13A-M3/85A pinout, SMP13A-M3/85A application, or SMP13A-M3/85A equivalent, key selection criteria include unidirectional polarity, DO-220AA package compatibility, 1.0 mm profile for space-constrained PCBs, low clamping voltage under surge, and MSL Level 1 reflow capability up to 260 °C.
Technical Context
This TVS diode operates as a fast-acting shunt protector, triggering when reverse voltage exceeds its breakdown threshold to divert transient energy away from downstream components. Its low incremental surge resistance and 21.5 V clamping voltage at 18.6 A ensure effective suppression of inductive switching spikes and ESD events.
Designed for surface-mount assembly on standard PCB pads (5.0 mm × 5.0 mm copper per terminal), it supports automated placement and meets JESD 201 Class 2 whisker resistance. The device functions within -55 °C to +150 °C junction temperature range and exhibits 50 °C/W typical junction-to-lead thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below breakdown. |
| VBR min/max | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events without premature leakage. |
| PPPM | 400 W (10/1000 μs) - Peak surge power handling capacity determines protection level against standardized lightning/surge waveforms. |
| IPPM | 18.6 A - Peak surge current the device safely clamps without failure; used with VC to calculate protected circuit impedance. |
| VC | 21.5 V at IPPM - Clamping voltage under full surge defines maximum stress imposed on protected IC or MOSFET gate. |
| IFSM | 40 A (10 ms half-sine) - Forward surge rating supports robustness against accidental forward polarity surges or inrush conditions. |
| TJ max | +150 °C - Maximum junction temperature enables operation in high-ambient industrial environments with adequate thermal design. |
Pinout & Package
Package: SMP (DO-220AA), ultra-low-profile surface-mount case with matte tin-plated leads, 1.0 mm typical height, UL 94 V-0 molding compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., VCC or signal); conducts surge current toward cathode during overvoltage event. |
| Cathode | Current exit point during clamping; marked with band | Typically tied to ground or lower-potential rail; establishes reference for clamping action and polarity orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile packaging | 1.0 mm typical height enables use in slim consumer and portable electronics where Z-height is constrained. |
| MSL Level 1 rating | Compatible with standard lead-free reflow profiles up to 260 °C peak, eliminating moisture sensitivity handling requirements. |
| Halogen-free & RoHS-compliant | M3 suffix confirms industrial-grade compliance with environmental regulations and whisker resistance (JESD 201 Class 2). |
| Fast response time | Sub-nanosecond turn-on ensures suppression of fast-rising ESD and switching transients before downstream devices are damaged. |
Applications
| Industrial Motor Control | Telecom Power Supply Protection |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers from inductive kickback during relay or solenoid switching in PLC I/O modules. IC Role / Device Role / Timing Role: Shunt TVS placed across MOSFET gate-source or supply rail to clamp transients before they exceed absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic interfaces while maintaining system uptime in harsh factory environments. |
Use Scenario: Safeguarding DC-DC converter inputs and Ethernet PHY power rails against lightning-induced surges in outdoor base station power supplies. IC Role / Device Role / Timing Role: Primary-level transient suppressor on 12 V or 24 V input bus, coordinated with upstream fuses and downstream LC filters. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (1 kV line-earth) without requiring oversized capacitors or complex active clamping circuits. |
| Automotive Body Control Module | Consumer Sensor Interface Protection |
Use Scenario: Shielding LIN bus transceivers and window motor H-bridge controllers from load dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional TVS on VBAT-supplied rails and signal lines, selected for low leakage (<1 μA at 13 V) to avoid battery drain. Use Value: Maintains <1 μA reverse leakage at nominal 12 V operation while delivering 21.5 V clamping to preserve signal integrity during ISO 16750-2 pulses. |
Use Scenario: Securing I²C and analog output lines of MEMS accelerometers and temperature sensors in smart home hubs against ESD and board-level coupling. IC Role / Device Role / Timing Role: Low-capacitance (typ. 100 pF at 0 V) TVS placed directly at connector or IC pad to minimize signal distortion. Use Value: Limits junction capacitance impact on 400 kHz I²C rise times while providing >8 kV contact ESD immunity per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMP13A-M3/84A | Same electrical specs and DO-220AA package; differs only in tape-and-reel packaging (3000 pcs vs. 10000 pcs on 7″ reel). | Identical functional performance; suited for lower-volume prototyping or small-batch production runs. | Select /84A when matching existing 7″ reel logistics or minimizing initial inventory commitment. |
| SMAJ13A | Higher RθJA (350 °C/W vs. 250 °C/W), larger SMA package (2.5 mm height), same VWM/VC but lower IPPM (17.2 A vs. 18.6 A). | Less suitable for ultra-thin designs; requires more PCB area and offers reduced thermal margin under sustained surge duty. | Choose SMAJ13A only if legacy footprint compatibility or distributor stock availability outweighs height and thermal advantages of SMP13A-M3/85A. |
Compared with SMP13A-M3/84A, the /85A variant offers higher volume packaging efficiency without electrical trade-offs; versus SMAJ13A, it delivers superior thermal performance and space savings in modern compact layouts-critical for next-generation industrial and telecom modules.
Availability
SMP13A-M3/85A is available at Aetrix Electronics and suitable for industrial motor control, telecom power supply protection, automotive body control modules, and consumer sensor interface protection requiring stable component supply and long-term manufacturability.
Supply support for SMP13A-M3/85A 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 protection devices with emphasis on reliability, precision, and application-specific optimization.
The eSMP® Series-including SMP13A-M3/85A-is engineered for high-density surface-mount transient protection in space-constrained, high-reliability applications across industrial, telecom, and automotive markets.
FAQ
What is the maximum operating temperature for SMP13A-M3/85A?
The SMP13A-M3/85A has a maximum junction temperature (TJ max) of +150 °C and an operating junction and storage temperature range of -55 °C to +150 °C. This allows deployment in demanding industrial environments, provided PCB thermal design maintains junction temperature within limits using recommended 5.0 mm × 5.0 mm copper pads per terminal.
Does SMP13A-M3/85A meet RoHS and halogen-free requirements?
Yes, the M3 suffix on SMP13A-M3/85A certifies it as halogen-free, RoHS-compliant, and industrial grade. It also passes JESD 201 Class 2 whisker testing and meets UL 94 V-0 flammability standards for its molding compound.
What is the clamping voltage of SMP13A-M3/85A under surge conditions?
The SMP13A-M3/85A clamps to a maximum of 21.5 V at its rated peak pulse current (IPPM) of 18.6 A, measured with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMP13A-M3/85A unidirectional or bidirectional?
SMP13A-M3/85A is a unidirectional Transient Voltage Suppressor, with polarity indicated by a cathode band. It conducts only during reverse-biased overvoltage events and blocks forward current up to its specified IFSM rating of 40 A.
What package type does SMP13A-M3/85A use, and what are its key mechanical features?
SMP13A-M3/85A uses the SMP (DO-220AA) package: a low-profile surface-mount case measuring 0.142″ × 0.086″ (3.61 mm × 2.18 mm) with 1.0 mm typical height. It features matte tin-plated leads, UL 94 V-0 molding, and MSL Level 1 rating for lead-free reflow up to 260 °C.
SMP13A-M3/85A 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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)
SMP13A-M3/85A FAQ
1.How can I place an order for SMP13A-M3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMP13A-M3/85A 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 SMP13A-M3/85A reliable?
The price and inventory of SMP13A-M3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMP13A-M3/85A is usually 5 days.
3.What payment methods are accepted for SMP13A-M3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMP13A-M3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMP13A-M3/85A?
SMP13A-M3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMP13A-M3/85A 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 SMP13A-M3/85A?
For technical support, including SMP13A-M3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMP13A-M3/85A requirements.
6.How does Aetrix verify that SMP13A-M3/85A is sourced from the original manufacturer or authorized distributors?
All SMP13A-M3/85A 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 SMP13A-M3/85A meets industry standards.
7.What is the process for return or replacement of SMP13A-M3/85A?
All SMP13A-M3/85A units undergo pre-shipment inspection (PSI). If there is an issue with SMP13A-M3/85A, 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 SMP13A-M3/85A part is unused and in its original packaging.
Return procedure for SMP13A-M3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMP13A-M3/85A Tags
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