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Vishay General Semiconductor - Diodes Division SM15T220CAHE3/57T
- Part No.:
- SM15T220CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T220CAHE3/57T.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,470
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Product details
Overview
SM15T220CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 188 V stand-off voltage (VWM), 220 V minimum breakdown voltage (VBR), and 328 V maximum clamping voltage (VC) at 4.6 A IPPM. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T220CAHE3/57T datasheet, SM15T220CAHE3/57T pinout, SM15T220CAHE3/57T application, or SM15T220CAHE3/57T equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 1500 W surge capability with low clamping ratio, and compatibility with automated SMT assembly on 8 mm × 8 mm copper pads.
Technical Context
This device operates as a voltage-clamped crowbar during transient events, conducting when reverse voltage exceeds 220 V (min) and limiting clamped voltage to ≤328 V at 4.6 A. Its bidirectional structure enables symmetric protection on AC-coupled or floating lines without polarity concerns.
Designed for high-energy threats including lightning-induced surges (IEC 61000-4-5) and inductive switching transients, it features glass-passivated junctions, low inductance, and thermal resistance of 75 °C/W (junction-to-ambient) under standard mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe working margin below clamping threshold |
| VBR (min) | 209 V - Minimum breakdown voltage at 1 mA test current; ensures reliable conduction onset above normal operating voltage |
| VC @ IPPM | 328 V - Clamped voltage at 4.6 A peak pulse current (10/1000 μs); determines protected circuit's maximum stress level |
| PPPM | 1500 W - Peak pulse power handling per IEC 61000-4-5 waveform; supports robust lightning surge immunity |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard 8 mm × 8 mm pads; guides PCB thermal design for reliability |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically in bidirectional mode; no cathode band marking; device conducts equally in either direction above VBR |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 4 (4 kV line-to-ground) when properly mounted |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standards |
| Low clamping ratio (VC/VBR ≈ 1.57) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or ADC front-ends |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without moisture sensitivity concerns |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and ECU input to shunt transients before they reach precision amplifier stages. Use Value: Maintains signal integrity by limiting transient overshoot to ≤328 V while surviving repeated 1500 W surges per ISO 7637-2 Pulse 5a. | Use Scenario: Safeguarding RS-485 transceiver inputs on programmable logic controller (PLC) backplanes subjected to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on differential bus lines, positioned ahead of transceiver ESD diodes to absorb bulk energy. Use Value: Prevents latch-up and permanent damage in isolated RS-485 ICs during 4 kV contact discharge events per IEC 61000-4-2. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY magnetics secondary side from induced surges on PoE-powered devices. IC Role / Device Role / Timing Role: Secondary-side TVS across data pair outputs to suppress common-mode transients coupled through transformer parasitics. Use Value: Ensures uninterrupted link negotiation by clamping surges within 10 ns response time without affecting 100BASE-TX signal integrity. | Use Scenario: Input-stage surge suppression on AC-DC adapter primary-side rectifier outputs subject to mains-borne transients. IC Role / Device Role / Timing Role: Parallel-connected bidirectional clamp across bulk capacitor to limit voltage spikes during lightning surges. Use Value: Extends capacitor lifetime by reducing peak voltage stress from 380 V to ≤328 V during 1.2/50 μs line surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220CA-E3/57T | 600 W PPPM, same VWM/VBR, SMA package (smaller thermal mass) | Limited to lower-energy threats (IEC 61000-4-5 Level 2); unsuitable for automotive under-hood use due to lower power rating | Select when board space is constrained and surge threat level is ≤1 kV line-to-ground |
| SMCJ220CAHE3/57T | 3000 W PPPM, identical VWM/VBR/VC, same SMC package and AEC-Q101 qualification | Higher surge margin for critical safety systems (e.g., ADAS camera power rails); requires larger PCB pad area for thermal management | Choose when system-level surge testing requires ≥6 kV immunity or extended lifetime under repetitive transients |
Compared with SMAJ220CA-E3/57T, SM15T220CAHE3/57T delivers 2.5× higher surge energy absorption in the same footprint; versus SMCJ220CAHE3/57T, it trades half the peak power for tighter VC tolerance and lower cost in non-safety-critical automotive modules.
Availability
SM15T220CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor units, industrial PLC I/O ports, and telecom line interface designs requiring stable component supply, AEC-Q101 qualification, and 1500 W transient immunity.
Supply support for SM15T220CAHE3/57T 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive qualification.
The SM15T Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against lightning and inductive switching surges is mandatory.
FAQ
What is the clamping voltage of SM15T220CAHE3/57T at its rated peak pulse current?
The SM15T220CAHE3/57T has a maximum clamping voltage (VC) of 328 V when subjected to its rated peak pulse current of 4.6 A using the standard 10/1000 μs waveform. This value is measured under specified test conditions with 0.31" × 0.31" copper pads per terminal and confirms the device's ability to limit transient overvoltage to a predictable level during surge events.
Is SM15T220CAHE3/57T suitable for automotive applications?
Yes, SM15T220CAHE3/57T is AEC-Q101 qualified (indicated by the HE3 suffix) and designed for automotive use. It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock, making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where transient immunity and long-term reliability are critical.
How does the bidirectional configuration of SM15T220CAHE3/57T affect its placement on the PCB?
The bidirectional configuration of SM15T220CAHE3/57T eliminates polarity constraints-no cathode band marking is present, and both terminals are functionally identical. This allows unrestricted orientation during automated placement and simplifies layout for AC-coupled or floating signal paths, such as RS-485 differential pairs or transformer-isolated interfaces.
What is the thermal resistance of SM15T220CAHE3/57T, and how does it impact PCB layout?
SM15T220CAHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain reliability under repeated surges, PCB layout must replicate this pad area and avoid excessive trace narrowing or thermal isolation that would degrade heat dissipation.
Does SM15T220CAHE3/57T meet RoHS and halogen-free requirements?
SM15T220CAHE3/57T is RoHS-compliant (per EU Directive 2011/65/EU) and uses a halogen-free molding compound, as confirmed by Vishay's material categorization documentation (www.vishay.com/doc?99912). The HE3 suffix denotes AEC-Q101 qualification and full environmental compliance for automotive and industrial deployments.
SM15T220CAHE3/57T 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:
- -
- Bidirectional Channels:
- 1
- 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)
SM15T220CAHE3/57T FAQ
1.How can I place an order for SM15T220CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T220CAHE3/57T 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 SM15T220CAHE3/57T reliable?
The price and inventory of SM15T220CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T220CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T220CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T220CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T220CAHE3/57T?
SM15T220CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T220CAHE3/57T 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 SM15T220CAHE3/57T?
For technical support, including SM15T220CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T220CAHE3/57T requirements.
6.How does Aetrix verify that SM15T220CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T220CAHE3/57T 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 SM15T220CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T220CAHE3/57T?
All SM15T220CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T220CAHE3/57T, 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 SM15T220CAHE3/57T part is unused and in its original packaging.
Return procedure for SM15T220CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T220CAHE3/57T Tags
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