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Vishay General Semiconductor - Diodes Division SM6T220CA-M3/52
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- Part No.:
- SM6T220CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220CA-M3/52.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,455
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Product details
Overview
SM6T220CA-M3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 220 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 μs), and clamping voltage of 328 V at 2.0 A IPPM. It protects signal lines and power rails in automotive sensor units, industrial I/O interfaces, and telecom surge-prone circuits.
For engineers reviewing the SM6T220CA-M3/52 datasheet, SM6T220CA-M3/52 pinout, SM6T220CA-M3/52 application, or SM6T220CA-M3/52 equivalent, key selection criteria include bidirectional clamping behavior, 188 V stand-off voltage (VWM), low leakage (<1.0 μA), AEC-Q101 qualification eligibility via HM3 suffix, and halogen-free RoHS compliance.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR (209–231 V), VWM (188 V), and VC (328 V @ 2.0 A). Its glass-passivated junction ensures stable avalanche performance under repetitive transients.
Designed for surface-mount placement on 5.0 mm × 5.0 mm copper pads per terminal, it delivers 100 °C/W junction-to-ambient thermal resistance and supports operation from −65 °C to +150 °C, meeting J-STD-020 MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V - Ensures reliable conduction onset above 188 V operating voltage, preventing false triggering |
| VWM | 188 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 328 V @ 2.0 A (10/1000 μs) - Limits protected circuit voltage during 600 W surge events |
| PPPM | 600 W - Withstands high-energy lightning-induced surges per IEC 61000-4-5 |
| TJ range | −65 °C to +150 °C - Enables deployment in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - Standardized footprint compatible with automated pick-and-place and reflow soldering |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking. Cathode/anode designation does not apply - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output for transient energy absorption in either direction |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing symmetrical clamping path; no DC bias dependency |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) without derating |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements for green manufacturing |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on downstream ICs during fast-rising transients |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking preconditioning |
| 100 A IFSM capability (unidirectional variant reference) | Indicates robust junction construction suitable for high-current fault conditions |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to shunt surge current before IC damage. Use Value: Maintains 188 V stand-off while clamping to 328 V, preserving signal integrity and enabling compliance with AEC-Q100 stress tests. | Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on each channel's input node, absorbing >600 W energy within microseconds. Use Value: Prevents latch-up or permanent failure in optocouplers and level-shifters during factory maintenance or cable fault events. |
| Telecom Line Interface Protection | Power Supply Rail Clamping |
Use Scenario: Shielding Ethernet PHY front-ends and PoE injectors from ESD (IEC 61000-4-2) and lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Bidirectional TVS placed between differential pairs and chassis ground to divert common-mode transients. Use Value: Symmetric clamping ensures equal protection for both signal polarities without polarity-sensitive layout constraints. | Use Scenario: Clamping 24 V or 48 V intermediate distribution rails in embedded systems against inductive switching spikes from motor drivers or solenoids. IC Role / Device Role / Timing Role: Low-inductance parallel suppressor across rail-to-ground, limiting overshoot during fast dI/dt events. Use Value: 328 V clamping voltage prevents overvoltage damage to downstream DC-DC converters and microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220CA | Same VBR range (209–231 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA) | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is ≤ Level 3 |
| SMCJ220CA | Higher PPPM = 1500 W; larger SMC (DO-214AB) package; same VWM/VC specs | Required for high-reliability industrial power supplies with repeated surge exposure | Choose when long-term surge endurance and thermal margin outweigh size constraints |
Compared with SMAJ220CA and SMCJ220CA, SM6T220CA-M3/52 delivers optimal balance of 600 W surge handling, SMB footprint compatibility, and halogen-free compliance-making it ideal for cost-sensitive automotive and industrial designs requiring validated AEC-Q101 readiness.
Availability
SM6T220CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O modules, and telecom line interface protection requiring stable component supply and halogen-free compliance.
Supply support for SM6T220CA-M3/52 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 and automotive-grade qualification.
The SM6T Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where bidirectional clamping, high surge tolerance, and AEC-Q101 readiness are mandatory.
FAQ
What is the maximum clamping voltage of SM6T220CA-M3/52 under standard test conditions?
The SM6T220CA-M3/52 has a maximum clamping voltage (VC) of 328 V when subjected to a 10/1000 μs waveform at IPPM = 2.0 A. This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during surge events. The clamping performance remains consistent across both polarities due to its bidirectional design.
Is SM6T220CA-M3/52 qualified for automotive applications?
SM6T220CA-M3/52 carries the M3 suffix indicating halogen-free, RoHS-compliant commercial grade. While not AEC-Q101 qualified out-of-box, it shares the same die and construction as AEC-Q101 variants (e.g., SM6T220CAHM3_X); qualification requires specific ordering code with HM3 suffix and revision marker. For automotive use, confirm HM3-based part number and qualification documentation.
What is the stand-off voltage rating for SM6T220CA-M3/52?
The stand-off voltage (VWM) of SM6T220CA-M3/52 is 188 V - the maximum DC or continuous peak reverse voltage that can be applied without exceeding 1.0 μA leakage current. This allows safe operation in 150–200 V nominal systems such as 48 V industrial buses or telecom power distribution networks.
Does SM6T220CA-M3/52 have polarity markings on the package?
No, SM6T220CA-M3/52 does not feature polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SM6T220A), this device functions identically regardless of terminal orientation, eliminating layout constraints related to cathode/anode placement during PCB design.
What is the thermal resistance specification for SM6T220CA-M3/52?
SM6T220CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB layout and defines power derating above 25 °C ambient - critical for sustained surge duty cycles in enclosed enclosures.
SM6T220CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T220CA-M3/52 FAQ
1.How can I place an order for SM6T220CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220CA-M3/52 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 SM6T220CA-M3/52 reliable?
The price and inventory of SM6T220CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T220CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SM6T220CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220CA-M3/52?
SM6T220CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220CA-M3/52 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 SM6T220CA-M3/52?
For technical support, including SM6T220CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220CA-M3/52 requirements.
6.How does Aetrix verify that SM6T220CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T220CA-M3/52 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 SM6T220CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SM6T220CA-M3/52?
All SM6T220CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220CA-M3/52, 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 SM6T220CA-M3/52 part is unused and in its original packaging.
Return procedure for SM6T220CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T220CA-M3/52 Tags
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