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Vishay General Semiconductor - Diodes Division SM6T200AHE3/5B
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- Part No.:
- SM6T200AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200AHE3/5B.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,290
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Product details
Overview
SM6T200AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM = 171 V), 274 V clamping voltage at 2.2 A peak pulse current (10/1000 μs), 600 W peak pulse power, and AEC-Q101 qualified for automotive applications. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges.
For engineers reviewing the SM6T200AHE3/5B datasheet, SM6T200AHE3/5B pinout, SM6T200AHE3/5B application, or SM6T200AHE3/5B equivalent, key selection criteria include verified clamping performance under 10/1000 μs surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on standard SMB pad layouts.
Technical Context
The SM6T200AHE3/5B operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its breakdown threshold (VBR min = 190 V, max = 210 V at 1 mA). Its low-inductance SMB package enables fast response to sub-microsecond transients while maintaining stable clamping under repetitive 10/1000 μs pulses up to 600 W.
Designed for surface-mount use with matte tin-plated leads (J-STD-002 compliant), it features glass-passivated junctions, meets MSL Level 1 (260 °C reflow peak), and supports operating junction temperatures from –65 °C to +150 °C - critical for under-hood automotive electronics and industrial power supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 190 V / 210 V at 1 mA - precise avalanche onset range ensures predictable turn-on margin |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - verified clamping level limits downstream voltage stress |
| PPPM | 600 W - peak transient energy absorption capability per industry-standard waveform |
| RθJA | 100 °C/W - thermal resistance defines derating requirement above 25 °C ambient |
| TJ max. | +150 °C - maximum junction temperature rating enables high-reliability automotive deployment |
| Polarity | Unidirectional - cathode band identifies terminal; blocks forward conduction, clamps reverse surges |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode identified by black band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / surge return node | Connected to protected circuit ground or low-side reference; carries full IPPM during clamping |
| Cathode | Reverse-biased clamping node | Marked with band; connects to line being protected (e.g., 200 V rail); conducts avalanche current when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive powertrain and chassis modules requiring zero-failure field performance |
| 600 W peak pulse power (10/1000 μs) | Robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events |
| Glass-passivated junction | Enhanced moisture resistance and long-term stability under thermal cycling and humidity stress |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (< 1 ns rise time) |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V and 48 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rail to clamp spikes before they reach DC/DC converters and microcontrollers. Use Value: Clamps 274 V at 2.2 A, limiting rail overvoltage to safe levels for 3.3 V/5 V logic and analog front-ends. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Point-of-entry suppression on 4–20 mA or 0–10 V signal paths exposed to relay-induced switching noise. Use Value: Low-leakage design (<1 μA at 171 V) avoids signal offset errors; fast response preserves signal integrity. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC rails feeding PHY ICs and magnetics. Use Value: 600 W rating handles IEC 61000-4-5 Level 4 (4 kV/2 kA) test pulses without degradation. | Use Scenario: Suppressing back-EMF from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across motor terminals or H-bridge outputs to absorb inductive kickback during PWM commutation. Use Value: 100 A IFSM rating withstands repeated 10 ms half-sine surges typical of motor startup/stall events. |
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-E3/5B | Same VWM (171 V), lower PPPM (400 W), higher RθJA (130 °C/W), non-AEC-Q101 | Not qualified for automotive; suitable for commercial-grade industrial or telecom use only | Select when AEC-Q101 is not required and cost sensitivity outweighs 33% lower surge margin |
| 1.5SMC200A | Same VWM and clamping, but SMC (DO-214AB) package - 2.5 mm wider, higher thermal mass, RθJA ≈ 80 °C/W | Requires larger PCB footprint; better for high-duty-cycle surges but incompatible with tight SMB layouts | Choose when board space allows and improved thermal dissipation justifies layout change |
Compared with SMAJ200A-E3/5B and 1.5SMC200A, the SM6T200AHE3/5B delivers AEC-Q101 compliance in the smallest SMB footprint while maintaining full 600 W surge capacity - making it optimal for space-constrained automotive modules where qualification and reliability are mandatory.
Availability
SM6T200AHE3/5B is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SM6T200AHE3/5B 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 validation.
The SM6T Series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through proven clamping performance and qualification-grade construction.
FAQ
What is the clamping voltage of SM6T200AHE3/5B under a 10/1000 μs surge?
The SM6T200AHE3/5B has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs waveform at 2.2 A peak pulse current. This value is measured per Figure 1 in the official Vishay datasheet (Doc. #88385) and defines the upper voltage limit imposed on protected circuits during standardized surge events.
Is SM6T200AHE3/5B AEC-Q101 qualified?
Yes, SM6T200AHE3/5B is AEC-Q101 qualified. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, validated for automotive applications including engine control, body electronics, and ADAS subsystems per the Vishay SM6T series qualification report.
What does the "5B" in SM6T200AHE3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This format supports high-volume automated SMT assembly and is specified in the Vishay ordering information table (Document #88385, page 2).
What is the standoff voltage (VWM) rating for SM6T200AHE3/5B?
The standoff voltage (VWM) for SM6T200AHE3/5B is 171 V. This is the maximum DC or continuous reverse working voltage the device can block without entering avalanche conduction - confirmed in the Electrical Characteristics table (Doc. #88385, page 2) for the SM6T200A variant.
Does SM6T200AHE3/5B have bidirectional capability?
No, SM6T200AHE3/5B is unidirectional. Its part number lacks the "CA" suffix (e.g., SM6T200CA), and the Vishay datasheet specifies that only variants with "CA" are bidirectional. The cathode band marking further confirms unidirectional polarity.
SM6T200AHE3/5B 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T200AHE3/5B FAQ
1.How can I place an order for SM6T200AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200AHE3/5B 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 SM6T200AHE3/5B reliable?
The price and inventory of SM6T200AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200AHE3/5B is usually 5 days.
3.What payment methods are accepted for SM6T200AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200AHE3/5B?
SM6T200AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200AHE3/5B 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 SM6T200AHE3/5B?
For technical support, including SM6T200AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200AHE3/5B requirements.
6.How does Aetrix verify that SM6T200AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T200AHE3/5B 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 SM6T200AHE3/5B meets industry standards.
7.What is the process for return or replacement of SM6T200AHE3/5B?
All SM6T200AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200AHE3/5B, 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 SM6T200AHE3/5B part is unused and in its original packaging.
Return procedure for SM6T200AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200AHE3/5B Tags
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