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Vishay General Semiconductor - Diodes Division SMC5K22A-M3/I
- Part No.:
- SMC5K22A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K22A-M3/I.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:637
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Product details
Overview
SMC5K22A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 24.4–26.9 V breakdown voltage, and 35.5 V maximum clamping voltage at 141 A. It protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and motor drives.
For engineers reviewing the SMC5K22A-M3/I datasheet, SMC5K22A-M3/I pinout, SMC5K22A-M3/I application, or SMC5K22A-M3/I equivalent, this page delivers verified electrical specs, clamping behavior under 10/1000 μs and 8/20 μs transients, thermal resistance (RthJA = 90 °C/W), AEC-Q101 qualification status, and industrial-grade suitability per Vishay's official documentation.
Technical Context
This TVS diode operates as a unidirectional clamping device, triggered when reverse voltage exceeds its 24.4–26.9 V breakdown range at 1 mA test current. Its low incremental surge resistance and fast response time enable effective suppression of inductive switching spikes and lightning-induced surges on DC power rails and signal paths.
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 per J-STD-020 (260 °C peak reflow), features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. The SMC5K22A-M3/I variant is halogen-free and RoHS-compliant but not AEC-Q101 qualified - only SMC5K10A–SMC5K20A with HM3 suffix carry automotive qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - defines precise voltage threshold for avalanche conduction onset |
| VWM | 22 V - maximum continuous reverse operating voltage before leakage rises above 1 μA |
| VC @ IPPM (10/1000 μs) | 35.5 V at 141 A - clamping voltage limiting protected circuit stress during standard surge events |
| PPPM | 5000 W (10/1000 μs) - peak transient energy handling capacity without failure |
| RthJA | 90 °C/W - thermal resistance from junction to ambient on FR4 PCB, critical for power derating above 25 °C |
| TJ max. | +150 °C - maximum allowable junction temperature defining safe operating area under surge duty cycle |
| ESD immunity | ±30 kV HBM (contact & air) - robustness against electrostatic discharge per IEC 61000-4-2 |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating. Cathode indicated by color band; anode and cathode terminals are axially oriented along the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line | Completes conduction path during reverse overvoltage clamp; must be routed to ground or return path |
| Cathode | Current exit terminal in forward bias; marked by color band, connected to higher-potential side | Serves as reference node for clamping action; ties to supply rail or signal line requiring protection |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients like motor commutation spikes without thermal runaway |
| 35.5 V clamping voltage at 141 A | Limits downstream component voltage stress to safe levels during worst-case surge conditions |
| Unidirectional polarity | Provides targeted protection on DC rails or biased signal lines where reverse conduction is not required |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for industrial equipment sold globally |
Applications
| Industrial Motor Drives | DC Power Supply Inputs |
|---|---|
Use Scenario: Protection of IGBT gate drivers and bus voltage sensing circuits against turn-off voltage spikes from inductive loads. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or gate resistor network to clamp overshoot within safe limits. Use Value: Prevents gate oxide damage and false triggering by limiting transient excursions to ≤35.5 V during 141 A surges. | Use Scenario: Input-stage surge suppression on 24 V industrial PLC power modules exposed to load dump and field wiring transients. IC Role / Device Role / Timing Role: Primary clamping element shunting surge current away from upstream rectifiers and downstream regulators. Use Value: Maintains system uptime by absorbing 5000 W pulses without degradation, validated per IEC 61000-4-5 Level 4. |
| Automotive Body Control Modules (non-AEC) | Sensor Signal Line Protection |
Use Scenario: Secondary protection on 12 V auxiliary rails in non-safety-critical BCMs where AEC-Q101 is not mandated. IC Role / Device Role / Timing Role: Standby TVS providing backup clamping after primary protection stages. Use Value: Delivers 30 kV ESD immunity and 8/20 μs surge capability up to 830 A, extending board-level robustness. | Use Scenario: Protection of analog outputs (e.g., 4–20 mA loops) and digital sensor interfaces (I²C, CAN) from cable-induced transients. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt device placed directly at connector entry point. Use Value: Clamps fast-rising transients before they propagate into sensitive ADCs or microcontrollers, preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-M3/87A | Lower peak pulse power (400 W), smaller SMA package, same VBR range (24.4–26.9 V) | Suitable for space-constrained, lower-energy applications; not rated for 5000 W surges | Select when board area is limited and surge threat level is ≤400 W (e.g., consumer IoT sensors) |
| SMCJ22A-M3/87A | Same SMC package, 1500 W peak pulse power (10/1000 μs), identical VBR/VC specs | Mid-tier energy handling; lacks 5000 W capability but offers tighter VC tolerance in some variants | Choose for cost-sensitive industrial controls where 1500 W suffices and footprint compatibility is required |
Compared with SMC5K22A-M3/I, SMAJ22A-M3/87A trades 87.5 % lower surge capacity for 40 % smaller footprint, while SMCJ22A-M3/87A retains the same SMC outline but reduces peak power by 70 % - making SMC5K22A-M3/I the only option among the three certified for 5000 W transients in industrial motor drive environments.
Availability
SMC5K22A-M3/I is available at Aetrix Electronics and suitable for industrial motor drives, DC power supply inputs, and sensor signal line protection requiring stable component supply and long-term manufacturing continuity.
Supply support for SMC5K22A-M3/I 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, power handling, and automotive-grade qualification.
The SMC5KxxA series is engineered for high-energy transient suppression in harsh industrial environments, targeting applications demanding 5000 W surge resilience and stable clamping performance across wide temperature ranges.
FAQ
What is the breakdown voltage range of the SMC5K22A-M3/I?
The SMC5K22A-M3/I has a guaranteed breakdown voltage (VBR) range of 24.4 V to 26.9 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent avalanche initiation across production lots and supports reliable overvoltage detection in 24 V industrial systems. The SMC5K22A-M3/I maintains this specification across its full operating temperature range of -55 °C to +150 °C.
Is the SMC5K22A-M3/I AEC-Q101 qualified?
No, the SMC5K22A-M3/I is not AEC-Q101 qualified. Per Vishay's official documentation, only SMC5K10A through SMC5K20A with HM3 suffix (e.g., SMC5K20AHM3_A/I) carry AEC-Q101 qualification. The SMC5K22A-M3/I is designated for industrial-grade use only and meets MSL Level 1, RoHS, and halogen-free requirements but lacks automotive qualification.
What is the maximum clamping voltage of the SMC5K22A-M3/I under a 10/1000 μs surge?
The SMC5K22A-M3/I exhibits a maximum clamping voltage (VC) of 35.5 V at 141 A under a 10/1000 μs waveform, as specified in Vishay's Document Number 87742. This value represents the upper limit of voltage seen by protected circuitry during standardized surge events and is critical for ensuring downstream components remain within their absolute maximum ratings.
Does the SMC5K22A-M3/I have bidirectional or unidirectional polarity?
The SMC5K22A-M3/I is a unidirectional transient voltage suppressor, meaning it conducts only in reverse bias above its breakdown voltage and blocks voltage in forward bias. Its cathode is marked by a color band, and it is intended for DC rail or biased signal line protection - unlike bidirectional TVS diodes, it does not suppress surges of either polarity.
What package type does the SMC5K22A-M3/I use, and what are its key mechanical properties?
The SMC5K22A-M3/I uses the SMC (DO-214AB) surface-mount package, with dimensions of 0.260–0.280 inches in length and 0.114–0.126 inches in width. It features UL 94 V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002, and meets JESD 201 Class 2 whisker resistance. The SMC5K22A-M3/I is supplied in 13-inch tape-and-reel format (3500 units per reel).
SMC5K22A-M3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 141A
- Power - Peak Pulse:
- 5000W (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:
- DO-214AB (SMC)
SMC5K22A-M3/I FAQ
1.How can I place an order for SMC5K22A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K22A-M3/I 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 SMC5K22A-M3/I reliable?
The price and inventory of SMC5K22A-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K22A-M3/I is usually 5 days.
3.What payment methods are accepted for SMC5K22A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K22A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K22A-M3/I?
SMC5K22A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K22A-M3/I 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 SMC5K22A-M3/I?
For technical support, including SMC5K22A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K22A-M3/I requirements.
6.How does Aetrix verify that SMC5K22A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMC5K22A-M3/I 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 SMC5K22A-M3/I meets industry standards.
7.What is the process for return or replacement of SMC5K22A-M3/I?
All SMC5K22A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K22A-M3/I, 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 SMC5K22A-M3/I part is unused and in its original packaging.
Return procedure for SMC5K22A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K22A-M3/I Tags
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