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Vishay General Semiconductor - Diodes Division SM6T220AHE3_B/H
- Part No.:
- SM6T220AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220AHE3_B/H.pdf
- Description:
- 600W,220V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,780
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Product details
Overview
SM6T220AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, with 220 V breakdown voltage (VBR), 328 V maximum clamping voltage (VC) at 2.0 A IPPM, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the SM6T220AHE3_B/H datasheet, SM6T220AHE3_B/H pinout, SM6T220AHE3_B/H application, or SM6T220AHE3_B/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, unidirectional polarity with cathode band marking, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant AEC-Q101 qualified construction for harsh-environment reliability.
Technical Context
This device operates as a unidirectional TVS diode, designed to clamp transient overvoltages above its 220 V breakdown threshold while maintaining low leakage (<1.0 μA at 188 V VWM). Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The SMB package enables automated placement and meets MSL level 1 (260 °C reflow peak), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Thermal design must account for RθJL = 20 °C/W and derating above TA = 25 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1.0 mA test current - defines precise avalanche onset window for predictable clamping initiation |
| VWM | 188 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 328 V at 2.0 A (10/1000 μs) - peak clamped voltage during standardized surge, limiting downstream stress |
| PPPM | 600 W - surge energy handling capacity under industry-standard 10/1000 μs waveform |
| ID @ VWM | <1.0 μA - ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max. | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| RθJA | 100 °C/W - guides PCB copper pad sizing (0.2" × 0.2") for thermal management compliance |
Pinout & Package
SMB (DO-214AA) surface-mount package with molded plastic body, matte tin-plated leads, and cathode band marking on the case end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout per datasheet Figure on page 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift over lifetime and thermal stress |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., ESD, load dump) due to reduced parasitic L |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 3 surges without degradation |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump transients (up to +120 V) on 24 V truck battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Limits peak voltage to 328 V during 600 W surges, preventing latch-up or gate oxide damage in downstream 36 V-rated power ICs. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standoff protection element across sensor supply and signal lines, triggered only during >209 V transients. Use Value: Maintains <1.0 μA leakage at 188 V operating voltage, avoiding measurement offset in 24-bit ADC sensor interfaces. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered network switches against induced lightning surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Primary clamping device on input stage, coordinated with upstream fuses and secondary filtering. Use Value: Clamps 10/1000 μs surges to ≤328 V within 1 ns response time, meeting IEC 61000-4-5 Annex D immunity requirements. | Use Scenario: Shielding BLDC motor driver ICs from back-EMF spikes generated during commutation in smart HVAC systems. IC Role / Device Role / Timing Role: Unidirectional suppressor mounted directly at motor phase input terminals. Use Value: Withstands 100 A IFSM (10 ms half-sine) and repeated 2.0 A IPPM events without parameter shift, ensuring multi-year field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A-E3/5B | Same VBR (209–231 V), lower PPPM = 400 W, SMA package (larger footprint, higher RθJA = 130 °C/W) | Less robust for sustained surge duty cycles; unsuitable for AEC-Q101 automotive programs | Select when cost sensitivity outweighs automotive qualification and 600 W margin requirements |
| 1.5SMC220A | Same VBR, PPPM = 1500 W, SMC package (7.11 mm × 6.22 mm), higher IPPM = 4.6 A | Overqualified for space-constrained layouts; requires larger PCB area and thermal pads | Choose when legacy board designs mandate SMC footprint or require >600 W headroom for worst-case lightning tests |
Compared with SMAJ220A-E3/5B and 1.5SMC220A, SM6T220AHE3_B/H delivers optimal balance of AEC-Q101 compliance, SMB space efficiency, and 600 W surge capability-making it the preferred choice for new automotive and industrial designs where footprint, qualification, and standardized clamping are jointly critical.
Availability
SM6T220AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer appliance motor drives requiring stable component supply and full traceability.
Supply support for SM6T220AHE3_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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The SM6T Series is engineered specifically for surface-mount transient suppression in space-constrained, high-reliability applications-including automotive power distribution, industrial I/O protection, and telecom infrastructure-where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance of SM6T220AHE3_B/H?
The SM6T220AHE3_B/H has a specified breakdown voltage range of 209 V to 231 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 220 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable overvoltage threshold design in safety-critical automotive and industrial systems. The SM6T220AHE3_B/H datasheet confirms this range in Table 1 on page 2.
Is SM6T220AHE3_B/H suitable for bidirectional transient suppression?
No, SM6T220AHE3_B/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" suffix (e.g., SM6T220CA). Using SM6T220AHE3_B/H in bidirectional configurations would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify polarity alignment before integrating SM6T220AHE3_B/H.
Does SM6T220AHE3_B/H meet automotive qualification standards?
Yes, SM6T220AHE3_B/H is explicitly AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in the Vishay SM6T datasheet (Document Number 88385, Revision 09-Jan-2024). It undergoes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life per AEC-Q101 Rev G. This makes SM6T220AHE3_B/H appropriate for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of SM6T220AHE3_B/H under standard surge conditions?
The SM6T220AHE3_B/H clamps to a maximum of 328 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPPM) of 2.0 A, as specified in the Electrical Characteristics table on page 2 of the datasheet. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is critical for ensuring downstream components remain within their absolute maximum ratings.
Can SM6T220AHE3_B/H be used in reflow soldering processes without preconditioning?
Yes, SM6T220AHE3_B/H is rated MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. No baking or moisture preconditioning is required prior to assembly. The device's SMB (DO-214AA) package uses molding compound compliant with UL 94 V-0 and matte tin-plated leads qualified per J-STD-002, enabling robust, repeatable surface-mount processing in high-volume manufacturing environments using SM6T220AHE3_B/H.
SM6T220AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SM6T220AHE3_B/H FAQ
1.How can I place an order for SM6T220AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220AHE3_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 SM6T220AHE3_B/H reliable?
The price and inventory of SM6T220AHE3_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 SM6T220AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T220AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220AHE3_B/H?
SM6T220AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220AHE3_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 SM6T220AHE3_B/H?
For technical support, including SM6T220AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220AHE3_B/H requirements.
6.How does Aetrix verify that SM6T220AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T220AHE3_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 SM6T220AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T220AHE3_B/H?
All SM6T220AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220AHE3_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 SM6T220AHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T220AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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