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Vishay General Semiconductor - Diodes Division SM6T220CA-E3/5B
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- Part No.:
- SM6T220CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220CA-E3/5B.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,991
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Product details
Overview
SM6T220CA-E3/5B 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 and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SM6T220CA-E3/5B datasheet, SM6T220CA-E3/5B pinout, SM6T220CA-E3/5B application, or SM6T220CA-E3/5B equivalent, key selection criteria include bidirectional clamping behavior, 188 V stand-off voltage (VWM), 10.3 μA max reverse leakage at VWM, thermal resistance (RθJA = 100 °C/W), and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR (209–231 V), VWM (188 V), and IPPM-based clamping (328 V @ 2.0 A) in either direction. Its low-inductance SMB package enables fast response to sub-microsecond transients.
Designed for surface-mount automated assembly, it features glass-passivated junction, matte tin-plated leads compliant with J-STD-002, and meets MSL Level 1 (260 °C peak reflow). Junction temperature range spans −65 °C to +150 °C, supporting under-hood automotive and high-ambient industrial use.
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 during normal operation. |
| VWM | 188 V - Maximum continuous reverse voltage before significant leakage; defines upper limit for system DC bias tolerance. |
| VC @ IPPM | 328 V @ 2.0 A (10/1000 μs) - Clamped voltage during worst-case surge; determines protected circuit's maximum transient stress level. |
| PPPM | 600 W - Peak transient energy absorption capacity; validates suitability for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 events. |
| ID @ VWM | ≤10.3 μA - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance sensor interfaces. |
| TJ max. | +150 °C - Enables deployment in engine control modules and motor drives without derating below ambient 125 °C. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band absent per bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | Accepts surge current during negative-going transients; connects to protected line or ground return path. |
| Cathode | Transient current entry point (positive polarity) | Accepts surge current during positive-going transients; symmetrical with Anode for bidirectional clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands automotive load-dump surges and industrial relay-switching spikes without degradation. |
| Glass passivated junction | Ensures stable VBR and low leakage over 1000+ thermal cycles and 15-year field life. |
| MSL Level 1 moisture sensitivity | Eliminates bake requirements prior to reflow; supports standard SMT line throughput. |
| RoHS-compliant, halogen-free option available | Meets IPC-1752A material declaration requirements for global OEM compliance reporting. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceiver inputs and analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, responding within <1 ns to transients. Use Value: Limits voltage excursion to ≤328 V during 2.0 A surge, preserving transceiver integrity and avoiding latch-up in downstream MCUs. | Use Scenario: Shielding 24 V DC digital input modules from inductive kickback when interfacing with solenoids and contactors. IC Role / Device Role / Timing Role: Parallel-connected transient shunt on each input channel, clamping voltage before upstream optocoupler or Schmitt trigger. Use Value: Prevents false triggering and component damage by holding line voltage below 328 V during 100 ms inductive decay events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs in outdoor base stations subjected to lightning-induced surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: First-stage protection device mounted at connector entry, preceding GDT or polymer PTC secondary protection. Use Value: Absorbs up to 600 W of transient energy while maintaining ≤328 V clamping, reducing stress on downstream protection stages. | Use Scenario: Suppressing commutation spikes on BLDC motor gate drivers and Hall-effect position feedback lines in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Localized TVS placed adjacent to motor driver IC pins to minimize loop inductance and improve clamping speed. Use Value: Clamps 188 V nominal bus transients to ≤328 V, preventing gate oxide rupture and ensuring >100,000-cycle reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VBR (209–231 V), same SMB package, but 600 W rating tested at 10/1000 μs with higher RθJA (110 °C/W vs. 100 °C/W). | No AEC-Q101 variant offered; limited to commercial-grade use only. | Select when cost sensitivity outweighs automotive qualification needs and thermal margin allows. |
| P6SMB220CA | Identical electrical specs and SMB footprint, but legacy Vishay series with older process; same 600 W rating and 328 V clamping. | Discontinued for new designs per Vishay PCN; not recommended for long-lifecycle programs. | Use only for legacy BOM refresh where redesign is prohibited; verify availability with distributor. |
Compared with SMBJ220CA and P6SMB220CA, SM6T220CA-E3/5B offers tighter thermal resistance (100 °C/W), RoHS-compliant matte tin terminations, and direct path to AEC-Q101 qualification via HE3 suffix-making it preferred for automotive and high-reliability industrial deployments.
Availability
SM6T220CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SM6T220CA-E3/5B 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, efficiency, and application-specific optimization.
The SM6T Series was engineered for robust, automated-solderable transient suppression in space-constrained environments-targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What does the "CA" suffix indicate in SM6T220CA-E3/5B?
The "CA" suffix denotes a bidirectional configuration: SM6T220CA-E3/5B conducts and clamps symmetrically for both positive and negative transients, unlike unidirectional variants (e.g., SM6T220A). This eliminates need for polarity-aware layout and supports AC-coupled or floating signal lines. The SM6T220CA-E3/5B has no cathode band marking, confirming its bidirectional nature per Vishay documentation.
Is SM6T220CA-E3/5B qualified to AEC-Q101?
SM6T220CA-E3/5B itself is RoHS-compliant commercial grade; however, the AEC-Q101 qualified version uses the HE3 or HM3 suffix (e.g., SM6T220CAHE3_B/I). These variants undergo extended stress testing including HTGB, TCT, and ESD per AEC-Q101 Rev D. For automotive applications, specify the HE3/HM3 variant-not SM6T220CA-E3/5B-to ensure qualification compliance.
What is the clamping voltage of SM6T220CA-E3/5B at its rated peak pulse current?
The SM6T220CA-E3/5B clamps to a maximum of 328 V when subjected to its rated peak pulse current of 2.0 A under the standard 10/1000 μs waveform. This value is measured across both terminals during transient conduction and defines the upper voltage limit imposed on protected circuitry during surge events.
Can SM6T220CA-E3/5B replace SM6T220A in an existing design?
No-SM6T220CA-E3/5B is bidirectional while SM6T220A is unidirectional. Substituting them requires verifying that the circuit does not rely on DC blocking or polarity-sensitive conduction. In unidirectional applications (e.g., DC power rail protection), SM6T220A provides cathode-defined orientation; SM6T220CA-E3/5B lacks polarity marking and conducts in both directions, potentially causing unintended current paths.
What is the maximum operating temperature for SM6T220CA-E3/5B?
The SM6T220CA-E3/5B has a maximum junction temperature (TJ) of +150 °C and operates from −65 °C to +150 °C. At ambient temperatures above 25 °C, power dissipation must be derated per Figure 2 in the datasheet (Document 88385), with thermal resistance RθJA = 100 °C/W on standard 0.2" × 0.2" copper pads.
SM6T220CA-E3/5B 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-E3/5B FAQ
1.How can I place an order for SM6T220CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220CA-E3/5B 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-E3/5B reliable?
The price and inventory of SM6T220CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T220CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SM6T220CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220CA-E3/5B?
SM6T220CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220CA-E3/5B 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-E3/5B?
For technical support, including SM6T220CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220CA-E3/5B requirements.
6.How does Aetrix verify that SM6T220CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T220CA-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SM6T220CA-E3/5B?
All SM6T220CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220CA-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SM6T220CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T220CA-E3/5B Tags
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