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Vishay General Semiconductor - Diodes Division SM6T220CAHE3_B/H
- Part No.:
- SM6T220CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220CAHE3_B/H.pdf
- Description:
- 600W,220V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,860
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Product details
Overview
SM6T220CAHE3_B/H 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 328 V maximum clamping voltage at 2.0 A IPPM. It provides robust ESD and surge protection for automotive sensor signal lines, power rails, and I/O interfaces operating up to 188 V stand-off voltage.
For engineers reviewing the SM6T220CAHE3_B/H datasheet, SM6T220CAHE3_B/H pinout, SM6T220CAHE3_B/H application, or SM6T220CAHE3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, low-inductance SMB package layout compatibility, and verified 150 °C junction temperature operation under repetitive transients.
Technical Context
This bidirectional TVS operates with symmetrical avalanche breakdown in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±10%) and low leakage (<1.0 μA at 188 V) across -65 °C to +150 °C.
The device delivers consistent clamping performance under standardized 10/1000 μs and 8/20 μs waveforms, with thermal resistance RθJA = 100 °C/W on 5.0 mm × 5.0 mm copper pads-critical for sustained surge handling in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1.0 mA test current - defines reliable turn-on threshold for overvoltage events |
| VWM | 188 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 328 V at 2.0 A (10/1000 μs) - clamping voltage limiting downstream component stress during surge |
| PPPM | 600 W - peak transient power dissipation capability per JEDEC standard waveform |
| TJ max. | +150 °C - enables use in under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated placement and IPC-7351B land patterns |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, MSL level 1 (260 °C reflow peak), dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (unmarked end) | Anode terminal for bidirectional operation | No polarity marking required; symmetric terminals enable AC line protection without orientation dependency |
| Anode (unmarked end) | Cathode terminal for bidirectional operation | Identical electrical behavior in either direction; no cathode band present on SM6T220CAHE3_B/H |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of differential, AC, or floating signal paths without polarity-sensitive layout |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and infotainment interfaces |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 surges on 12 V/24 V systems |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., ESD > 30 kV contact discharge) |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp absorbing transients before they reach precision ADC inputs or op-amp buffers. Use Value: Maintains signal integrity below ±10 mV error band during 100 V/10 ms load dump events per ISO 16750-2. | Use Scenario: Shielding CAN_H/CAN_L differential pair against EFT bursts and electrostatic discharge in factory automation gateways. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 100 pF at 0 V) bidirectional clamp preserving signal edge rate and bus timing margins. Use Value: Prevents CAN controller lockup during 4 kV ESD contact discharge while maintaining <1 ns added propagation delay. |
| Power Supply Rail Clamping | Telecom Line Interface |
Use Scenario: Safeguarding 24 V DC input rails of industrial PLC I/O modules against inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Fast-response (tR < 1.0 ps) avalanche diode shunting energy away from upstream DC-DC converters and LDOs. Use Value: Limits rail excursion to ≤328 V during 50 A/10 ms inductive kick, preventing MOSFET avalanche failure. | Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI-X) in VoIP phones and base stations against lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Symmetrical clamping device placed across differential pairs to suppress common-mode transients without unbalancing impedance. Use Value: Passes GR-1089-CORE Level 3 (6 kV/10/700 μs) surge testing with <5% packet loss in 100BASE-TX operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220CA | Same VBR range (209–231 V), lower PPPM = 400 W, SMA package (larger footprint, higher RθJA) | Less suitable for high-density automotive PCBs requiring SMB footprint and AEC-Q101 compliance | Select when cost sensitivity outweighs space constraints and automotive qualification is not required |
| 1.5KE220CA | Higher PPPM = 1500 W but axial DO-201 package; no AEC-Q101 rating; VC = 355 V at 4.3 A | Designed for chassis-level primary protection, not board-level IC-level clamping | Choose for front-end surge suppression where PCB mounting and automated assembly are not required |
Compared with SMAJ220CA and 1.5KE220CA, SM6T220CAHE3_B/H offers superior board-level integration via SMB footprint, guaranteed AEC-Q101 qualification, and optimized thermal performance for sustained surge duty cycles in space-constrained automotive modules.
Availability
SM6T220CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, and telecom line clamping requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for SM6T220CAHE3_B/H 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems-designed to meet stringent AEC-Q101 requirements while delivering precise clamping and low-inductance packaging for modern PCB layouts.
FAQ
What does the "CA" suffix indicate in SM6T220CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning SM6T220CAHE3_B/H provides symmetrical transient voltage suppression in both forward and reverse directions. This eliminates polarity concerns during PCB placement and supports protection of AC-coupled or floating signal paths-unlike unidirectional variants (e.g., SM6T220A) that require correct cathode orientation relative to system ground.
Is SM6T220CAHE3_B/H qualified for automotive applications?
Yes, SM6T220CAHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024. This qualification covers temperature cycling, highly accelerated life testing (HALT), and ESD robustness-making SM6T220CAHE3_B/H suitable for under-hood and ADAS sensor modules where reliability under thermal and mechanical stress is critical.
What is the maximum clamping voltage of SM6T220CAHE3_B/H under surge conditions?
The maximum clamping voltage (VC) of SM6T220CAHE3_B/H is 328 V when subjected to a 10/1000 μs waveform at IPPM = 2.0 A. This value is measured per JEDEC standards and represents the peak voltage seen by protected circuitry during worst-case transient events-ensuring downstream components like microcontrollers or transceivers remain within safe operating limits.
How does the SMB (DO-214AA) package of SM6T220CAHE3_B/H compare to SMA in size and thermal performance?
The SMB package of SM6T220CAHE3_B/H measures 4.57 mm × 3.94 mm × 2.20 mm-approximately 30% smaller than SMA-and achieves RθJA = 100 °C/W on 5.0 mm × 5.0 mm copper pads. In contrast, SMA packages typically exhibit RθJA > 120 °C/W. This makes SM6T220CAHE3_B/H better suited for high-density automotive PCBs where space and thermal management are tightly constrained.
Does SM6T220CAHE3_B/H have a polarity marking on the device body?
No, SM6T220CAHE3_B/H has no polarity marking such as a cathode band because it is a bidirectional TVS diode. Both terminals are electrically identical, allowing unrestricted orientation during automated placement. This contrasts with unidirectional variants (e.g., SM6T220A), which feature a visible cathode band to ensure correct anode/cathode alignment in DC-biased circuits.
SM6T220CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T220CAHE3_B/H FAQ
1.How can I place an order for SM6T220CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220CAHE3_B/H 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 SM6T220CAHE3_B/H reliable?
The price and inventory of SM6T220CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T220CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T220CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220CAHE3_B/H?
SM6T220CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220CAHE3_B/H 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 SM6T220CAHE3_B/H?
For technical support, including SM6T220CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220CAHE3_B/H requirements.
6.How does Aetrix verify that SM6T220CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T220CAHE3_B/H 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 SM6T220CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T220CAHE3_B/H?
All SM6T220CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220CAHE3_B/H, 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 SM6T220CAHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T220CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T220CAHE3_B/H Tags
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