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Vishay General Semiconductor - Diodes Division SM15T220A-E3/57T
- Part No.:
- SM15T220A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T220A-E3/57T.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,980
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Product details
Overview
SM15T220A-E3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 220 V breakdown voltage (VBR = 209–231 V), 328 V clamping voltage at 4.6 A, and 188 V stand-off voltage. It protects MOSFETs and signal lines in automotive power electronics against lightning-induced and inductive switching transients.
For engineers reviewing the SM15T220A-E3/57T datasheet, SM15T220A-E3/57T pinout, SM15T220A-E3/57T application, or SM15T220A-E3/57T equivalent, key selection criteria include clamping performance at high VWM, unidirectional polarity with cathode band marking, RoHS-compliant commercial-grade packaging, and thermal resistance (RθJA = 75 °C/W) under standard pad layout.
Technical Context
This TVS diode operates as a voltage-clamped overvoltage protection device, triggering into avalanche conduction when reverse voltage exceeds its 209–231 V breakdown range. Its low-inductance SMC package and glass-passivated junction support fast response to transients up to 10/1000 μs waveform stress.
It is designed for single-polarity protection where system ground reference defines cathode connection. Failure mode under overstress is short-circuit, and it meets J-STD-020 MSL Level 1 with 260 °C reflow peak, making it suitable for automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V - ensures reliable avalanche turn-on above 188 V operating stand-off, preventing false triggering during normal operation |
| VWM | 188 V - maximum continuous reverse voltage before leakage exceeds 1 μA, defining safe DC operating ceiling |
| VC @ IPPM | 328 V at 4.6 A - clamping voltage limits downstream component stress during 1500 W transient events |
| PPPM | 1500 W (10/1000 μs) - sustains high-energy surges typical of lightning and motor-switching transients |
| RθJA | 75 °C/W - thermal resistance measured on 8.0 mm × 8.0 mm copper pads, guiding heatsinking requirements |
| TJ max | 150 °C - maximum junction temperature supports operation in under-hood automotive environments |
| Polarity | Unidirectional - cathode marked by band; requires correct orientation relative to protected circuit's ground reference |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile, RoHS-compliant matte tin-plated leads. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H), with cathode band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected circuit return path | Connected to system ground or lower-potential node; conducts avalanche current during overvoltage |
| Anode (unmarked end) | Line-side connection | Connected to input line or signal trace being protected; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 surge events without derating in standard PCB layouts |
| Glass passivated chip junction | Improves long-term reliability and stability of VBR under thermal cycling and humidity exposure |
| Low inductance SMC package | Minimizes voltage overshoot during fast-rising transients (< 1 ns rise time), preserving clamping integrity |
| MSL Level 1, 260 °C peak reflow | Supports lead-free reflow soldering without baking or special handling, reducing manufacturing complexity |
| RoHS-compliant, commercial grade (E3 suffix) | Meets environmental compliance for global industrial and consumer applications without halogen restrictions |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 24 V DC power rails feeding ECUs and body control modules from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp surges above 188 V. Use Value: Limits peak voltage to 328 V during 4.6 A transients, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Safeguarding PLC analog input channels connected to 4–20 mA sensors exposed to field wiring inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line to ground, absorbing 1500 W pulses induced by relay coil de-energization. Use Value: Maintains signal integrity by clamping within 100 ns while drawing <1 μA leakage at 188 V operating voltage. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Inrush Suppression |
Use Scenario: Shielding Ethernet PHY power pins and auxiliary bias rails in PoE-powered switches from ESD and lightning-induced surges. IC Role / Device Role / Timing Role: High-VWM TVS on 48 V bias rail, oriented cathode-to-ground to handle negative-going transients. Use Value: Withstands 188 V continuous bias while clamping 10/1000 μs surges to ≤328 V-critical for IEEE 802.3bt compliance margin. | Use Scenario: Suppressing turn-on transients across AC-DC converter bulk capacitors in smart HVAC controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across primary-side rectifier output to limit voltage spikes during cold-start inrush. Use Value: Absorbs 1500 W energy without degradation, enabling use with NTC-less designs while maintaining 150 °C junction rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A | Lower peak pulse power (400 W), same VWM/VBR range, SMA package (smaller footprint, higher RθJA) | Not suitable for lightning-level threats; limited to low-energy ESD and switching noise | Select only if system threat level is below IEC 61000-4-5 Level 3 and board space is constrained |
| SMCJ220A | Same 1500 W rating and SMC package, but VBR = 242–267 V (higher threshold), VC = 356 V @ 4.2 A | Higher clamping voltage reduces protection margin for 220 V nominal systems | Prefer when tighter tolerance on VBR is needed or when higher VC is acceptable for legacy design reuse |
Compared with SMAJ220A and SMCJ220A, SM15T220A-E3/57T delivers optimal balance of high-energy clamping (328 V @ 4.6 A), precise 188 V stand-off, and commercial-grade manufacturability-making it preferred for new automotive and industrial designs requiring validated 1500 W surge immunity.
Availability
SM15T220A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, telecom line interface protection, and consumer appliance power supply inrush suppression requiring stable component supply and full traceability.
Supply support for SM15T220A-E3/57T 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 leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SM15T Series was engineered for high-power transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where 1500 W surge immunity, stable VBR, and SMT manufacturability are mandatory.
FAQ
What is the breakdown voltage range for SM15T220A-E3/57T?
The SM15T220A-E3/57T has a specified breakdown voltage (VBR) range of 209 V to 231 V at 1.0 mA test current. This range ensures consistent avalanche initiation above its 188 V stand-off voltage while accommodating process variation. The value is measured per JEDEC standards using a 300 μs square-wave pulse, and it directly determines the minimum overvoltage threshold at which SM15T220A-E3/57T begins clamping.
Is SM15T220A-E3/57T suitable for automotive applications?
SM15T220A-E3/57T is RoHS-compliant and commercial-grade (E3 suffix); it is not AEC-Q101 qualified. For automotive applications requiring qualification, the HE3 variant (e.g., SM15T220AHE3_A/H) must be used. SM15T220A-E3/57T remains appropriate for non-safety-critical automotive subsystems-such as infotainment power rails-where full AEC-Q101 is not mandated, provided thermal and surge requirements align with its 1500 W rating and 150 °C TJ max.
What does the "-E3/57T" suffix indicate in SM15T220A-E3/57T?
The "-E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/57T" specifies packaging in 7-inch diameter plastic tape and reel, with a base quantity of 850 units. This format complies with EIA-481 standards and supports automated pick-and-place assembly. The E3/57T configuration is distinct from M3 (halogen-free) or HE3 (AEC-Q101) variants and confirms full traceability and J-STD-020 MSL Level 1 compliance for SM15T220A-E3/57T.
How is the clamping voltage of SM15T220A-E3/57T verified?
The clamping voltage (VC) of SM15T220A-E3/57T is measured as 328 V at 4.6 A peak pulse current using a standardized 10/1000 μs double-exponential waveform. This test condition reflects real-world lightning-induced surges and is performed with the device mounted on 8.0 mm × 8.0 mm copper pads per terminal. The value is guaranteed across temperature and lifetime, and it defines the maximum voltage seen by protected circuitry during worst-case transient events.
Can SM15T220A-E3/57T be used in bidirectional configurations?
No-SM15T220A-E3/57T is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants require the "CA" suffix (e.g., SM15T220CA). Using SM15T220A-E3/57T in bidirectional applications would result in forward conduction during negative transients, causing failure. For symmetrical protection, select the CA version, which exhibits matched VBR in both directions and no polarity marking.
SM15T220A-E3/57T 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:
- 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):
- 4.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SM15T220A-E3/57T FAQ
1.How can I place an order for SM15T220A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T220A-E3/57T 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 SM15T220A-E3/57T reliable?
The price and inventory of SM15T220A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T220A-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T220A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T220A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T220A-E3/57T?
SM15T220A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T220A-E3/57T 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 SM15T220A-E3/57T?
For technical support, including SM15T220A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T220A-E3/57T requirements.
6.How does Aetrix verify that SM15T220A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T220A-E3/57T 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 SM15T220A-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T220A-E3/57T?
All SM15T220A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T220A-E3/57T, 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 SM15T220A-E3/57T part is unused and in its original packaging.
Return procedure for SM15T220A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T220A-E3/57T Tags
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