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Vishay General Semiconductor - Diodes Division SM15T220AHE3/9AT
- Part No.:
- SM15T220AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T220AHE3/9AT.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,617
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Product details
Overview
SM15T220AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 220 V breakdown voltage (VBR = 209–231 V), 188 V stand-off voltage (VWM), 328 V clamping voltage (VC) at 4.6 A peak pulse current, and 1500 W peak pulse power with 10/1000 μs waveform. It protects automotive-grade power and signal lines against lightning-induced and switching transients.
For engineers reviewing the SM15T220AHE3/9AT datasheet, SM15T220AHE3/9AT pinout, SM15T220AHE3/9AT application, or SM15T220AHE3/9AT equivalent, key selection criteria include verified AEC-Q101 qualification, unidirectional polarity with cathode band marking, low-inductance SMC package, and clamping performance under high-impedance transient sources typical in vehicle ECU and sensor interface designs.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 188 V, it avalanches at VBR = 209–231 V and clamps to ≤328 V at IPPM = 4.6 A (10/1000 μs). Its failure mode under overstress is short-circuit, enabling safe system-level fault containment.
Designed for high-reliability automotive applications, SM15T220AHE3/9AT features glass-passivated junction, MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002, and thermal resistance RθJA = 75 °C/W on standard 8.0 mm × 8.0 mm copper pads - enabling robust thermal management without heatsinks in space-constrained modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V - precise avalanche onset ensures reliable triggering above 188 V operating rail without false trips |
| VWM | 188 V - maximum continuous reverse voltage before conduction begins; sets upper limit for protected circuit DC bias |
| VC @ IPPM | 328 V @ 4.6 A (10/1000 μs) - clamping level limits downstream voltage stress during lightning surge events |
| PPPM | 1500 W - peak transient energy handling capacity compatible with ISO 7637-2 Pulse 1/2a/5a test profiles |
| TJ max | +150 °C - enables operation in under-hood environments including engine control units and battery management systems |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height for automated assembly |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM ≥ 8 kV |
Pinout & Package
SM15T220AHE3/9AT uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, cathode indicated by a band on the body. Leads are solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or low-impedance return path; completes clamping loop during transient overvoltage |
| Cathode | High-side connection; marked with band | Connected to protected line (e.g., 24 V supply rail); conducts avalanche current into anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports compliance with ISO 16750-2 and ISO 7637-2 automotive surge immunity standards without derating |
| Glass passivated chip junction | Ensures stable VBR and leakage performance across temperature (-65 °C to +150 °C) and lifetime |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including engine control, ADAS sensors, and infotainment power rails |
| Low inductance design | Minimizes voltage overshoot during fast-rising transients (e.g., >1 kV/μs), critical for protecting wide-bandwidth analog inputs |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without pre-baking, reducing manufacturing complexity and cost |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs) against load dump and alternator ripple transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Clamps 188 V nominal rail to ≤328 V during 100 ms load dump events, preventing damage to MCU, CAN transceivers, and voltage regulators. |
Use Scenario: Safeguarding digital I/O lines of PLC modules connected to solenoid valves and contactors subject to inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input channels, absorbing repetitive 600 W switching spikes from coil de-energization. Use Value: Limits transient voltage to <328 V at 4.6 A, preserving optocoupler isolation integrity and microcontroller GPIO reliability over 100,000+ cycles. |
| Telecom Base Station DC Feeds | Renewable Energy Inverter Control Boards |
Use Scenario: Shielding remote radio head (RRH) power inputs from induced surges on long outdoor cable runs exposed to lightning. IC Role / Device Role / Timing Role: Primary front-end TVS on -48 V DC feed, coordinated with upstream MOVs and secondary filtering. Use Value: Handles 1500 W peak pulses while maintaining <1 μA leakage at -48 V, ensuring minimal standby power loss and long-term stability. |
Use Scenario: Protecting gate driver supply rails in solar inverter half-bridges from cross-talk and shoot-through induced transients. IC Role / Device Role / Timing Role: Localized clamping device adjacent to isolated gate drivers, suppressing <100 ns ringing on 15 V bias rails. Use Value: Low-inductance SMC package minimizes parasitic L × di/dt overshoot, preventing false turn-on of SiC MOSFETs during high dv/dt switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A-E3/57T | Same VWM/VBR/VC, but 400 W PPPM; SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients (e.g., ESD, local switching noise); not suitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge threat level is below 1500 W; verify thermal margin with RθJA = 110 °C/W |
| 1.5KE220A | Through-hole DO-201 package; identical electrical specs but no AEC-Q101 qualification or MSL Level 1 rating | Restricted to non-automotive industrial or telecom equipment where reflow compatibility and automotive qualification are not required | Choose for legacy through-hole designs or cost-sensitive non-automotive applications; avoid in new AEC-compliant designs |
Compared with SMAJ220A-E3/57T and 1.5KE220A, SM15T220AHE3/9AT uniquely combines 1500 W surge capability, AEC-Q101 qualification, SMC surface-mount compatibility, and MSL Level 1 process readiness - making it the only option qualified for next-generation automotive power domain protection requiring zero rework risk and full production traceability.
Availability
SM15T220AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor drives, telecom base station power feeds, and renewable energy inverter control boards requiring stable component supply across multi-year production cycles.
Supply support for SM15T220AHE3/9AT 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 power MOSFETs with emphasis on reliability, precision, and automotive-grade validation.
The SM15T Series was developed specifically for high-energy transient suppression in harsh automotive and industrial environments, targeting ISO 7637-2 and ISO 16750-2 compliance with AEC-Q101 qualification built-in.
FAQ
What is the clamping voltage of SM15T220AHE3/9AT at its rated peak pulse current?
The SM15T220AHE3/9AT has a maximum clamping voltage (VC) of 328 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 4.6 A. This value is measured under standardized test conditions per JEDEC and is guaranteed across the full operating temperature range of -65 °C to +150 °C. The clamping performance ensures downstream components remain within safe voltage limits during surge events.
Is SM15T220AHE3/9AT qualified for automotive applications?
Yes, SM15T220AHE3/9AT is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documented in Vishay's official qualification reports. It meets all stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body model ESD (≥8 kV), making it suitable for engine control units, ADAS sensors, and other safety-critical automotive subsystems.
What does the "9AT" suffix indicate in SM15T220AHE3/9AT?
The "9AT" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This format supports high-volume automated SMT placement and is compatible with standard pick-and-place equipment. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "9AT" specifies logistics and handling details.
How does the SMC package of SM15T220AHE3/9AT compare to DO-201 in thermal performance?
The SMC (DO-214AB) package of SM15T220AHE3/9AT offers RθJA = 75 °C/W on 8.0 mm × 8.0 mm copper pads, significantly better than the DO-201's typical RθJA > 100 °C/W. This lower thermal resistance enables higher sustained power dissipation in compact layouts and eliminates need for additional heatsinking in most automotive and industrial applications.
Can SM15T220AHE3/9AT be used in bidirectional configurations?
No, SM15T220AHE3/9AT is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). Bidirectional variants require the "CA" suffix (e.g., SM15T220CA). Using SM15T220AHE3/9AT in reverse-biased AC applications would result in forward conduction and potential failure; always match polarity marking (cathode band) to circuit grounding scheme.
SM15T220AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 4.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T220AHE3/9AT FAQ
1.How can I place an order for SM15T220AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T220AHE3/9AT 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 SM15T220AHE3/9AT reliable?
The price and inventory of SM15T220AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T220AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T220AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T220AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T220AHE3/9AT?
SM15T220AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T220AHE3/9AT 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 SM15T220AHE3/9AT?
For technical support, including SM15T220AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T220AHE3/9AT requirements.
6.How does Aetrix verify that SM15T220AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T220AHE3/9AT 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 SM15T220AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T220AHE3/9AT?
All SM15T220AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T220AHE3/9AT, 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 SM15T220AHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T220AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T220AHE3/9AT Tags
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