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Vishay General Semiconductor - Diodes Division SM15T200A-E3/57T
- Part No.:
- SM15T200A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200A-E3/57T.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,674
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Product details
Overview
SM15T200A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 274 V clamping voltage at 5.5 A IPPM, and 171 V stand-off voltage. It protects MOSFETs, I/O lines, and sensor signal paths against lightning-induced and inductive-switching transients in automotive and industrial power electronics.
For engineers reviewing the SM15T200A-E3/57T datasheet, SM15T200A-E3/57T pinout, SM15T200A-E3/57T application, or SM15T200A-E3/57T equivalent, key selection criteria include verified clamping performance at 5.5 A, unidirectional polarity with cathode band marking, RoHS-compliant commercial-grade E3 suffix, and SMC package thermal resistance of 75 °C/W junction-to-ambient.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds 171 V (VWM), it avalanches at 190–210 V (VBR, 1 mA test current) and clamps to ≤274 V under 5.5 A transient current (10/1000 μs). Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM).
Designed for high-impedance source environments, it sustains 1500 W peak pulse power without degradation under single-event threats-failure mode is short-circuit. Thermal design requires 0.31" × 0.31" copper pads per terminal to meet derated power limits above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single lightning or motor-switching surges without failure |
| Stand-off Voltage (VWM) | 171 V - maximum continuous reverse voltage before conduction begins |
| Breakdown Voltage (VBR) | 190–210 V at 1 mA - precise avalanche onset threshold for reliable triggering |
| Clamping Voltage (VC) | 274 V at 5.5 A IPPM - limits downstream voltage stress during surge events |
| Package | SMC (DO-214AB) - surface-mount footprint with 75 °C/W RθJA and MSL Level 1 rating |
| Polarity & Marking | Unidirectional with cathode band - enables correct orientation in DC-biased protection circuits |
| RoHS Compliance | E3 suffix - lead-free, halogen-free, commercial-grade, JESD201 Class 2 whisker tested |
Pinout & Package
SM15T200A-E3/57T uses the standard SMC (DO-214AB) package: molded plastic body with two coplanar matte tin-plated leads, cathode identified by a band on the case. Mounting requires 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal for thermal and pulse-current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to system ground or low-side reference | Enables low-impedance path to ground when clamping reverse transients at cathode |
| Cathode | Protected line connection; marked with band | Receives transient voltage; avalanches when VAK > VBR, shunting surge current to anode |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating (10/1000 μs) | Validated clamping performance under IEC 61000-4-5 Level 4 surge conditions |
| Glass passivated junction | Ensures stable VBR over temperature and lifetime; <1 μA leakage at 171 V |
| Low inductance SMC package | Minimizes voltage overshoot during fast-rising transients (e.g., <100 ns edges) |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without moisture sensitivity concerns |
| AEC-Q101 qualified variant available | HE3 suffix option enables automotive-grade qualification (not applicable to E3/57T) |
Applications
| Automotive Power Distribution | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 24 V DC power rails in body control modules from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and protected node, clamping transients to ≤274 V. Use Value: Prevents damage to MCU power supplies and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding PLC analog input channels from switching noise generated by contactor coils and VFDs. IC Role / Device Role / Timing Role: Shunt protector on signal line, triggered only during >171 V overvoltage events. Use Value: Maintains signal integrity below 171 V while limiting fault voltage to safe levels for 24 V ADC front-ends. |
| Telecom DC Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Primary-level TVS on DC input, coordinated with secondary GDT or MOV stages. Use Value: Absorbs up to 1500 W energy without degradation, enabling compliance with ITU-T K.21 basic protection level. |
Use Scenario: Protecting microcontroller GPIOs and relay drivers in washing machine main control boards. IC Role / Device Role / Timing Role: Localized clamping device on 12 V supply rail feeding solenoid drivers. Use Value: Limits voltage excursion to 274 V during 200 A inductive turn-off spikes, preventing latch-up in embedded logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ200A | Same 200 V VWM, 274 V VC @ 5.5 A, but lower PPPM (400 W); SMC package, unidirectional | Rated for lighter-duty transients; insufficient for IEC 61000-4-5 Level 4 | Select SM15T200A-E3/57T when 1500 W surge immunity is required; SMAJ200A suits cost-sensitive, lower-threat environments. |
| Vishay SM15T200CA-E3/57T | Bidirectional variant: same VWM/VBR/VC specs but symmetrical clamping in both polarities; CA suffix, no polarity marking | Required for AC-coupled or floating signal lines where reverse polarity surges occur | Choose SM15T200A-E3/57T for DC-biased rails with defined ground reference; use SM15T200CA-E3/57T for bidirectional data or AC power lines. |
Compared with SMAJ200A and SM15T200CA-E3/57T, SM15T200A-E3/57T delivers triple the peak pulse power of the former and provides polarity-specific clamping optimized for grounded DC systems-critical for automotive and industrial power rail protection where unidirectional threat dominance is confirmed.
Availability
SM15T200A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive I/O protection, and telecom DC power feeds requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SM15T200A-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with global manufacturing and testing infrastructure focused on reliability and automotive-grade validation.
The SM15T Series was developed specifically for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where 1500 W surge capability and stable clamping under repeated stress are mandatory.
FAQ
What is the clamping voltage of SM15T200A-E3/57T and how is it measured?
The clamping voltage of SM15T200A-E3/57T is 274 V, measured at 5.5 A peak pulse current using a 10/1000 μs waveform. This value represents the maximum voltage seen across the device terminals during a standardized surge event and is critical for ensuring downstream components remain within their absolute maximum ratings. The SM15T200A-E3/57T achieves this clamping performance while dissipating 1500 W peak power.
Is SM15T200A-E3/57T suitable for automotive applications?
SM15T200A-E3/57T is RoHS-compliant and commercial-grade (E3 suffix), not AEC-Q101 qualified. For automotive applications requiring qualification, the HE3-suffix variant (e.g., SM15T200AHE3_A/H) must be selected. However, SM15T200A-E3/57T remains widely used in non-safety-critical automotive subsystems such as body electronics where full AEC-Q101 is not mandated.
What does the "-E3/57T" suffix indicate in SM15T200A-E3/57T?
The "E3" suffix denotes RoHS-compliant, lead-free, halogen-free commercial-grade construction with JESD201 Class 2 whisker resistance. "57T" specifies packaging: 7-inch diameter plastic tape and reel containing 850 units. This ordering code ensures consistent assembly compatibility and traceability for SMT production lines using SM15T200A-E3/57T.
How does SM15T200A-E3/57T differ from bidirectional TVS diodes like SM15T200CA-E3/57T?
SM15T200A-E3/57T is unidirectional with a cathode band marking and conducts only in reverse bias above VBR; SM15T200CA-E3/57T is bidirectional, symmetrically clamping in both directions with no polarity marking. The unidirectional SM15T200A-E3/57T offers tighter leakage control in DC systems, while the CA version suits AC or floating signal lines where polarity reversal occurs.
What PCB layout guidance applies to SM15T200A-E3/57T for optimal surge performance?
For optimal thermal and electrical performance, SM15T200A-E3/57T must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, per Vishay's datasheet Fig. 2 and mechanical notes. Narrow traces or undersized pads increase impedance and reduce effective surge handling-direct pad connection to ground/power planes is essential to maintain the specified 1500 W rating and 274 V clamping behavior of SM15T200A-E3/57T.
SM15T200A-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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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)
SM15T200A-E3/57T FAQ
1.How can I place an order for SM15T200A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200A-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 SM15T200A-E3/57T reliable?
The price and inventory of SM15T200A-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 SM15T200A-E3/57T is usually 5 days.
3.What payment methods are accepted for SM15T200A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200A-E3/57T?
SM15T200A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200A-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 SM15T200A-E3/57T?
For technical support, including SM15T200A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200A-E3/57T requirements.
6.How does Aetrix verify that SM15T200A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T200A-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 SM15T200A-E3/57T meets industry standards.
7.What is the process for return or replacement of SM15T200A-E3/57T?
All SM15T200A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200A-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 SM15T200A-E3/57T part is unused and in its original packaging.
Return procedure for SM15T200A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200A-E3/57T Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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