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Vishay General Semiconductor - Diodes Division SM6T220CA-E3/52
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- Part No.:
- SM6T220CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220CA-E3/52.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:11,770
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Product details
Overview
SM6T220CA-E3/52 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), 328 V maximum clamping voltage (VC), and 2.0 A peak pulse current (IPPM). It protects signal lines and power rails in automotive sensor units against ESD and inductive switching transients.
For engineers reviewing the SM6T220CA-E3/52 datasheet, SM6T220CA-E3/52 pinout, SM6T220CA-E3/52 application, or SM6T220CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, SMB package thermal resistance (RθJA = 100 °C/W), and compliance with IEC 61000-4-2/4-5 surge immunity standards.
Technical Context
The SM6T220CA-E3/52 operates as a symmetrical avalanche diode, conducting equally in both directions above its 220 V breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low leakage (<1.0 μA at 188 V), while the low-inductance SMB package enables fast response to sub-microsecond transients.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 (260 °C reflow peak) and supports operation from −65 °C to +150 °C junction temperature. The device delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions when mounted on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V - Ensures reliable conduction onset across manufacturing variation and temperature range |
| VWM | 188 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 328 V @ 2.0 A (10/1000 μs) - Clamps transient energy to safe levels for downstream 200 V-rated ICs |
| PPPM | 600 W - Sustains high-energy surges common in automotive load-dump and ISO 7637-2 tests |
| RθJA | 100 °C/W - Limits junction temperature rise under 5.0 W steady-state dissipation on standard PCB layout |
| TJ range | −65 °C to +150 °C - Supports under-hood automotive environments and industrial control enclosures |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One terminal of symmetrical junction; conducts during negative transients relative to cathode reference |
| Cathode | Transient current entry (forward bias) | Other terminal of symmetrical junction; conducts during positive transients relative to anode reference |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse rating | Meets ISO 16750-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (1.2/50 μs & 8/20 μs) |
| AEC-Q101 qualified option | SM6T220CA-HE3_X variant available for automotive-grade reliability and lifetime validation |
| Low clamping ratio (VC/VBR) | 1.49 - Minimizes overvoltage stress on protected circuitry compared to higher-ratio TVS devices |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs exposed to alternator load dump and relay coil flyback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between differential signal pair and ground, limiting transients to <328 V. Use Value: Prevents latch-up or gate oxide damage in downstream RS-485 transceivers and microcontroller input buffers. | Use Scenario: Safeguarding CAN_H/CAN_L lines in factory automation PLC modules subjected to 4 kV EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 10 pF at 0 V) bidirectional suppressor shunting transients to chassis ground. Use Value: Maintains signal integrity up to 1 Mbps CAN FD data rates while absorbing repetitive 50 ns pulses. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive |
Use Scenario: Guarding 24 V DC input stage of VoIP gateway power converter against lightning-induced surges on PoE or external adapter lines. IC Role / Device Role / Timing Role: Primary-level TVS placed upstream of input filter, clamping 10/1000 μs surges to ≤328 V. Use Value: Enables compliance with UL 60950-1 Annex M and EN 61000-4-5 Level 3 (2 kV line-earth). | Use Scenario: Shielding microcontroller GPIOs driving brushed DC motors in smart vacuum cleaners from commutation spikes. IC Role / Device Role / Timing Role: Localized TVS on motor driver enable/control lines, responding within <1 ns to sub-100 ns transients. Use Value: Eliminates firmware resets caused by >100 V spikes induced by motor brush arcing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA-T | Same VBR (209–231 V), identical SMB package, but lower PPPM = 600 W and higher VC = 356 V @ 1.7 A | Marginally higher clamping voltage reduces protection margin for 200 V-rated components | Select when cost sensitivity outweighs clamping performance; verify VC margin against protected IC absolute max ratings |
| 1.5KE220CA | Higher PPPM = 1500 W, DO-201 package (larger footprint), VC = 356 V @ 4.2 A, slower response due to higher parasitic inductance | Not suitable for space-constrained SMT layouts; better for high-energy primary-side protection | Choose only if board area permits axial leaded package and system requires >600 W surge handling |
Compared with SMBJ220CA-T and 1.5KE220CA, the SM6T220CA-E3/52 offers superior clamping ratio (1.49 vs. 1.62 and 1.62), tighter VBR tolerance (±5 % vs. ±5 % and ±10 %), and optimized thermal resistance for dense PCB layouts-making it preferred for automotive and high-reliability industrial designs where layout space and voltage margin are critical.
Availability
SM6T220CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and telecom power supply input requiring stable component supply and RoHS-compliant sourcing.
Supply support for SM6T220CA-E3/52 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, precision, and automotive qualification.
The SM6T Series is designed specifically for robust transient suppression in harsh environments, targeting AEC-Q101-compliant automotive electronics and industrial systems demanding high surge immunity and long-term stability.
FAQ
What is the breakdown voltage tolerance for SM6T220CA-E3/52?
The SM6T220CA-E3/52 has a specified breakdown voltage (VBR) range of 209 V to 231 V at 1.0 mA test current, corresponding to a ±5 % tolerance. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage protection design for 200 V-class circuits. The value is measured per JEDEC standard after applying a 300 μs square-wave pulse.
Is SM6T220CA-E3/52 RoHS-compliant and halogen-free?
Yes, the SM6T220CA-E3/52 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. It is not halogen-free; for halogen-free versions, select the "M3" suffix variant (e.g., SM6T220CA-M3/52). Both variants meet UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
Does SM6T220CA-E3/52 have AEC-Q101 qualification?
The base SM6T220CA-E3/52 is commercial-grade and not AEC-Q101 qualified. However, Vishay offers the automotive-qualified variant SM6T220CA-HE3_X (where "X" denotes revision code such as A or B), which undergoes extended stress testing per AEC-Q101 and is marked with "HE3" suffix. Always verify qualification status via the full ordering code and official Vishay documentation.
What is the maximum clamping voltage of SM6T220CA-E3/52 under surge conditions?
The SM6T220CA-E3/52 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 guaranteed per datasheet Figure 1 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events, enabling safe interfacing with components rated for ≤350 V absolute maximum voltage.
Can SM6T220CA-E3/52 be used in bidirectional AC signal paths?
Yes, the "CA" suffix explicitly denotes bidirectional functionality, meaning SM6T220CA-E3/52 provides symmetrical clamping in both polarities. It is suitable for protecting AC-coupled interfaces such as RS-485, CAN, LVDS, or audio lines where voltage transients may swing positive or negative relative to signal common. No polarity marking is present on the SMB package, confirming its bidirectional design.
SM6T220CA-E3/52 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-E3/52 FAQ
1.How can I place an order for SM6T220CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220CA-E3/52 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-E3/52 reliable?
The price and inventory of SM6T220CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T220CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SM6T220CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220CA-E3/52?
SM6T220CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220CA-E3/52 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-E3/52?
For technical support, including SM6T220CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220CA-E3/52 requirements.
6.How does Aetrix verify that SM6T220CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T220CA-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SM6T220CA-E3/52?
All SM6T220CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220CA-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SM6T220CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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