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Vishay General Semiconductor - Diodes Division SM6T200A-E3/52
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- Part No.:
- SM6T200A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200A-E3/52.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,184
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Product details
Overview
SM6T200A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 171 V stand-off voltage (VWM), 190–210 V breakdown voltage (VBR at 1.0 mA), 274 V maximum clamping voltage (VC) at 2.2 A (10/1000 μs), 600 W peak pulse power rating, and SMB (DO-214AA) surface-mount package - deployed in automotive power supply inputs and industrial motor drive control circuits.
For engineers reviewing the SM6T200A-E3/52 datasheet, SM6T200A-E3/52 pinout, SM6T200A-E3/52 application, or SM6T200A-E3/52 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, RoHS compliance (E3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The SM6T200A-E3/52 operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast response to ESD and inductive switching transients. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while its low-inductance SMB package supports high-frequency surge suppression without parasitic resonance.
Rated for operation from −65 °C to +150 °C junction temperature, it delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions when mounted per recommended pad layout. Derating begins above TA = 25 °C per Figure 2, and thermal impedance is characterized with RθJL = 20 °C/W to lead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 190–210 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events |
| VC (Clamping Voltage) | 274 V at 2.2 A (10/1000 μs) - Peak voltage seen by protected circuit during rated surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capability under standard 10/1000 μs waveform; validates protection level per IEC 61000-4-5 |
| RθJA (Junction-to-Ambient) | 100 °C/W - Thermal resistance under still-air conditions; informs derating requirements for sustained power dissipation |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with JEDEC-compliant reflow profiles |
| Polarity | Unidirectional with cathode band - Defines DC bias orientation; requires correct PCB placement to avoid reverse conduction failure |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, and polarity indicated by a cathode band on the body. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; establishes forward conduction path during fault |
| Cathode | Reverse-biased terminal / Clamping node | Connected to higher-potential rail; avalanche conduction occurs here to clamp overvoltage to VC |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates robustness against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) in industrial power inputs |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot during transients, reducing stress on downstream MOSFETs and controllers |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements |
| RoHS-compliant, halogen-free option available | Meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-20 MSL Class 2a requirements for green electronics |
| 150 °C maximum junction temperature | Supports operation in under-hood automotive environments and enclosed industrial enclosures |
Applications
| Automotive Power Input Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load-dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp positive-going surges. Use Value: Limits peak voltage to ≤274 V during 2.2 A transients, preventing damage to upstream DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding IGBT gate drivers and bus sensing circuits from commutation-induced voltage spikes in 400 V DC drives. IC Role / Device Role / Timing Role: Standoff-rated TVS across DC bus rails to absorb inductive kickback energy during switching transitions. Use Value: Clamps 10/1000 μs surges to 274 V with <1.0 μA leakage at 171 V, preserving bus stability during steady-state operation. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply |
Use Scenario: Shielding RS-485 transceivers and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC outputs to suppress common-mode transients coupled into data lines. Use Value: Delivers 600 W pulse handling with low capacitance (typ. <100 pF), avoiding signal integrity degradation at 10 Mbps rates. |
Use Scenario: Securing AC-DC adapter outputs against mains-borne surges and transformer ringing in white goods. IC Role / Device Role / Timing Role: Secondary-side unidirectional suppressor on +12 V or +24 V distribution rails feeding control logic. Use Value: Provides AEC-Q101-qualified reliability and 100 °C/W thermal resistance for long-term operation in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A | Same VWM (171 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load-dump where 600 W is required | Select SM6T200A-E3/52 when 600 W surge rating and SMB mechanical robustness are mandatory |
| 1.5SMC200A | Same VWM/VBR, PPPM = 1500 W, but larger SMC (DO-214AB) package and higher VC = 328 V | Better energy handling but higher clamping voltage increases risk to sensitive downstream ICs | Choose SM6T200A-E3/52 where tighter clamping (274 V vs. 328 V) and compact SMB size are prioritized over absolute peak power |
Compared with SMAJ200A and 1.5SMC200A, the SM6T200A-E3/52 delivers optimal balance of clamping precision (274 V), industry-standard 600 W rating, and SMB package compatibility with high-density layouts - making it preferred for space-constrained automotive and industrial modules requiring validated AEC-Q101 reliability.
Availability
SM6T200A-E3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drive systems, and telecom infrastructure equipment requiring stable component supply and traceable RoHS-compliant sourcing.
Supply support for SM6T200A-E3/52 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, efficiency, and application-specific optimization.
The SM6T Series was engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 qualification are critical design requirements.
FAQ
What is the maximum clamping voltage of the SM6T200A-E3/52 under a 10/1000 μs surge?
The SM6T200A-E3/52 has a maximum clamping voltage (VC) of 274 V when subjected to a 2.2 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in the official Vishay datasheet (Document Number: 88385, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is the SM6T200A-E3/52 qualified for automotive applications?
The base SM6T200A-E3/52 is RoHS-compliant and commercial-grade; however, the AEC-Q101 qualified version uses the HE3 suffix (e.g., SM6T200AHE3_A). The SM6T200A-E3/52 itself is not AEC-Q101 certified - engineers requiring automotive qualification must select the HE3 or HM3 variant explicitly designated in Vishay's ordering matrix.
What does the "E3/52" suffix indicate in SM6T200A-E3/52?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/52" specifies packaging in 7-inch diameter plastic tape and reel, with a base quantity of 750 units. This format aligns with Vishay's standard ordering nomenclature documented in Section "ORDERING INFORMATION" of datasheet 88385.
What is the thermal resistance of the SM6T200A-E3/52, and how does it affect layout?
The SM6T200A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W under standard test conditions (mounted on 0.2" × 0.2" copper pads). To maintain safe junction temperatures during repeated surges, PCB layout must follow Vishay's recommended pad dimensions (5.0 mm × 5.0 mm per terminal) and avoid excessive trace length or isolation.
How does the SM6T200A-E3/52 differ from bidirectional TVS diodes like SM6T200CA?
The SM6T200A-E3/52 is unidirectional and features a cathode band for polarity-sensitive placement; it conducts only during positive overvoltage events on the cathode side. In contrast, SM6T200CA is bidirectional (no polarity marking) and suppresses surges of either polarity - making it suitable for AC lines or differential data interfaces where symmetric clamping is required.
SM6T200A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, 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):
- 2.2A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SM6T200A-E3/52 FAQ
1.How can I place an order for SM6T200A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200A-E3/52 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 SM6T200A-E3/52 reliable?
The price and inventory of SM6T200A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200A-E3/52 is usually 5 days.
3.What payment methods are accepted for SM6T200A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200A-E3/52?
SM6T200A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200A-E3/52 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 SM6T200A-E3/52?
For technical support, including SM6T200A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200A-E3/52 requirements.
6.How does Aetrix verify that SM6T200A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T200A-E3/52 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 SM6T200A-E3/52 meets industry standards.
7.What is the process for return or replacement of SM6T200A-E3/52?
All SM6T200A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200A-E3/52, 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 SM6T200A-E3/52 part is unused and in its original packaging.
Return procedure for SM6T200A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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