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Vishay General Semiconductor - Diodes Division SM6T100AHE3_B/H
- Part No.:
- SM6T100AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3_B/H.pdf
- Description:
- 600W,100V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,141
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Product details
Overview
SM6T100AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM = 85.5 V), 137 V clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It provides robust protection for automotive-grade sensor signal lines against inductive switching transients.
For engineers reviewing the SM6T100AHE3_B/H datasheet, SM6T100AHE3_B/H pinout, SM6T100AHE3_B/H application, or SM6T100AHE3_B/H equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.30), 100 °C/W junction-to-ambient thermal resistance, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) to transient overvoltages. Its breakdown voltage (VBR = 95.0–105 V at IT = 1 mA) ensures precise triggering above system operating voltage while maintaining low leakage (<1 μA at VWM).
The device sustains 600 W peak pulse power under standardized 10/1000 μs waveform conditions when mounted on 5.0 mm × 5.0 mm copper pads, and derates linearly above TA = 25 °C per Fig. 2 - supporting reliable operation up to TJ = 150 °C with RθJA = 100 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 95.0 / 105 V at 1 mA - tight breakdown tolerance ensures predictable turn-on threshold |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - clamping voltage defines worst-case stress on protected IC |
| PPPM | 600 W - peak transient energy absorption capability under standard surge waveform |
| TJ max. | +150 °C - enables use in under-hood automotive environments with high ambient temperature |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.20 mm height and 5.59 mm length |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, MSL Level 1, 260 °C reflow compatible. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground during overvoltage event |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges without external series impedance |
| Glass passivated chip junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
| Low inductance layout | Minimizes voltage overshoot during fast transients (e.g., ESD, relay bounce) due to compact SMB geometry |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| RoHS-compliant & halogen-free option available | Meets global environmental compliance requirements without compromising electrical performance |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine compartments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches downstream signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V system surges up to ±100 V. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced transients (e.g., motor contactor switching, solenoid de-energization). IC Role / Device Role / Timing Role: Fast-response overvoltage clamp placed directly at connector entry point before optocoupler or Schmitt trigger input stage. Use Value: Maintains signal integrity and prevents false triggering during repetitive 1 kV/500 A surge events per IEC 61000-4-5 Level 4. |
| Telecom Line Interface Protection | Consumer Power Adapter ESD Guard |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced surges on twisted-pair data lines in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level TVS in series with common-mode chokes, absorbing differential-mode surge energy before isolation transformers. Use Value: Limits clamped voltage to ≤137 V, keeping stress below 150 V absolute maximum rating of Gigabit Ethernet PHYs. | Use Scenario: Adding secondary-side surge immunity to USB-C and barrel-jack DC inputs in smart home hubs and audio amplifiers subjected to user-handling ESD. IC Role / Device Role / Timing Role: Final-stage clamping device after primary AC/DC conversion, protecting LDO regulators and microcontrollers. Use Value: Withstands ≥30 kV air discharge (IEC 61000-4-2) while adding <0.5 pF parasitic capacitance to preserve signal rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/52 | Same SMB package, VWM = 85.5 V, VC = 137 V, but non-AEC-Q101; RθJA = 110 °C/W | Commercial-grade only; not validated for automotive temperature cycling or humidity testing | Select when cost sensitivity outweighs automotive qualification requirements |
| 1.5SMC100A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, VWM = 85.5 V, VC = 137 V, non-AEC-Q101 | Requires larger PCB footprint; suited for higher-energy industrial surges where space permits | Choose when system-level surge tests exceed 600 W and board area allows SMC outline |
Compared with SMAJ100A-E3/52 and 1.5SMC100A, the SM6T100AHE3_B/H delivers identical clamping performance in a smaller SMB footprint while guaranteeing AEC-Q101 compliance - making it optimal for space-constrained automotive modules requiring zero-reliability-risk surge protection.
Availability
SM6T100AHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line protection, and consumer power adapter ESD guard circuits requiring stable component supply across production lifecycles.
Supply support for SM6T100AHE3_B/H 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 SM6T Series was developed specifically for surface-mount transient suppression in automotive, industrial, and telecom systems where AEC-Q101 qualification, low-profile packaging, and repeatable clamping behavior are mandatory design requirements.
FAQ
What is the clamping voltage of SM6T100AHE3_B/H at its rated peak pulse current?
The SM6T100AHE3_B/H has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 4.4 A. This value is measured under standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SM6T100AHE3_B/H maintains this clamping performance consistently across its qualified operating temperature range.
Is SM6T100AHE3_B/H suitable for automotive applications?
Yes, the SM6T100AHE3_B/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Doc. #88385, Rev. 09-Jan-2024). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making it approved for use in engine control units, ADAS sensors, and body electronics. The SM6T100AHE3_B/H meets automotive reliability standards without requiring additional qualification by the end user.
What does the "_B/H" suffix mean in SM6T100AHE3_B/H?
The "_B/H" suffix in SM6T100AHE3_B/H indicates packaging configuration: "B" denotes tape-and-reel revision level (e.g., revision B of the reel specification), and "H" specifies the preferred package code for 7-inch diameter plastic tape and reel, containing 750 units per reel. This ordering code aligns with Vishay's standard delivery mode for SMB devices and ensures compatibility with automated pick-and-place equipment. The SM6T100AHE3_B/H is RoHS-compliant and AEC-Q101 qualified per its HE3 base designation.
How does SM6T100AHE3_B/H compare to bidirectional TVS diodes?
The SM6T100AHE3_B/H is unidirectional and features a cathode band for polarity identification; it conducts only in reverse breakdown, making it ideal for DC-biased lines like automotive sensor supplies. Bidirectional variants (e.g., SM6T100CA) lack polarity marking and clamp in both directions - suitable for AC or floating lines. The SM6T100AHE3_B/H offers lower leakage (<1 μA at VWM) than equivalent bidirectional types and avoids ambiguity in grounding schemes where unidirectional clamping is required.
What is the thermal resistance of SM6T100AHE3_B/H, and how does it affect PCB layout?
The SM6T100AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as specified in the Vishay datasheet. To maintain safe junction temperatures under repeated surge conditions, PCB layout must replicate this minimum pad area and ensure adequate copper pour around both terminals. Reducing pad size increases RθJA, risking thermal runaway during high-duty-cycle transients. The SM6T100AHE3_B/H thermal performance is optimized for standard SMB land patterns defined in JEDEC DO-214AA.
SM6T100AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T100AHE3_B/H FAQ
1.How can I place an order for SM6T100AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3_B/H 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 SM6T100AHE3_B/H reliable?
The price and inventory of SM6T100AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3_B/H?
SM6T100AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3_B/H 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 SM6T100AHE3_B/H?
For technical support, including SM6T100AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3_B/H requirements.
6.How does Aetrix verify that SM6T100AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3_B/H 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 SM6T100AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3_B/H?
All SM6T100AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3_B/H, 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 SM6T100AHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T100AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3_B/H Tags
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