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Vishay General Semiconductor - Diodes Division SM6T100AHE3_B/I
- Part No.:
- SM6T100AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3_B/I.pdf
- Description:
- 600W,100V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,981
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Product details
Overview
SM6T100AHE3_B/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V clamping voltage (VC) at 4.4 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It provides robust ESD and surge protection for automotive sensor signal lines and power rails.
For engineers reviewing the SM6T100AHE3_B/I datasheet, SM6T100AHE3_B/I pinout, SM6T100AHE3_B/I application, or SM6T100AHE3_B/I equivalent, key selection criteria include clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking. Its silicon junction is glass passivated for stable breakdown behavior and low leakage (≤1 μA at 85.5 V). Designed for surface-mount automated placement, it meets MSL level 1 and supports peak forward surge current up to 100 A (10 ms half-sine).
The device delivers consistent clamping response across -65 °C to +150 °C junction temperature range. Its low inductance and 20 °C/W junction-to-lead thermal resistance enable effective energy dissipation during fast transients, especially when mounted on 5.0 mm × 5.0 mm copper pads per JEDEC standard layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum reverse stand-off voltage before clamping begins; defines operating margin below breakdown |
| VBR min/max | 95.0 V / 105 V - breakdown voltage range at 1 mA test current; ensures predictable turn-on threshold |
| VC @ IPPM | 137 V at 4.4 A - clamping voltage under 10/1000 μs surge; limits protected circuit stress during transients |
| PPPM | 600 W - peak pulse power handling capability; determines survivability against IEC 61000-4-5 Level 4 surges |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient; informs PCB copper pad sizing for thermal management |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line; conducts during overvoltage to shunt surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime and environmental stress, critical for long-term field operation |
| 600 W peak pulse rating (10/1000 μs) | Supports compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive systems |
| MSL level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure risk |
| Low inductance design | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus interface ICs and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp positive-going surges above 85.5 V. Use Value: Limits transient voltage to ≤137 V at 4.4 A, preventing damage to 5 V or 12 V tolerant receivers while maintaining signal integrity. | Use Scenario: Safeguarding 24 V DC input rails of PLC modules and motor drives against 1 kV/500 A surge events per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary clamping element in parallel with bulk capacitance, activated within nanoseconds of overvoltage onset. Use Value: Absorbs 600 W peak power without degradation, enabling system-level surge immunity without derating or redundancy. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and smart home hubs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V output rail, triggered only during abnormal conditions exceeding 85.5 V. Use Value: Prevents latch-up or burnout of downstream DC-DC converters and USB controllers during sustained overvoltage faults. | Use Scenario: Protection of Ethernet PHY interfaces and PoE injectors against induced surges on twisted-pair data lines in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to local ground, placed upstream of common-mode chokes and isolation transformers. Use Value: Maintains <1 μA leakage at 85.5 V, avoiding signal attenuation or bias shift in high-impedance differential receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5B | Same SMB package, 100 V VWM, but lower PPPM (400 W); RθJA = 110 °C/W | Limited to lower-energy transients (e.g., IEC 61000-4-4 EFT); not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and 600 W surge headroom |
| 1.5SMC100A | Higher-power SMC package (1500 W PPPM), same VWM/VBR specs, larger footprint (7.11 mm × 6.22 mm) | Used where higher surge margin is required and board space allows larger case | Choose when system-level testing requires >600 W surge withstand or extended thermal mass is needed |
Compared with SMAJ100A-E3/5B and 1.5SMC100A, SM6T100AHE3_B/I uniquely balances AEC-Q101 qualification, 600 W surge capability, and compact SMB footprint-making it optimal for space-constrained automotive and industrial modules requiring validated reliability.
Availability
SM6T100AHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial power supplies, consumer adapter outputs, and telecom line interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T100AHE3_B/I 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, precise clamping, and robust surge handling are mandatory.
FAQ
What is the clamping voltage of SM6T100AHE3_B/I under a 10/1000 μs surge?
The SM6T100AHE3_B/I has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform at 4.4 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. The clamping performance remains stable across its specified operating temperature range.
Is SM6T100AHE3_B/I qualified for automotive applications?
Yes, SM6T100AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in Revision 09-Jan-2024 of datasheet 88385. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making SM6T100AHE3_B/I suitable for under-hood and cabin ECU designs where reliability is critical.
What does the "_B/I" suffix mean in SM6T100AHE3_B/I?
The "_B/I" suffix in SM6T100AHE3_B/I indicates packaging configuration: "B" denotes the revision code (Revision B), and "I" specifies 13-inch diameter plastic tape and reel delivery containing 3200 units. This matches Vishay's ordering information table on page 2 of datasheet 88385, confirming SM6T100AHE3_B/I is a RoHS-compliant, AEC-Q101 qualified variant supplied in high-volume reel format.
How does SM6T100AHE3_B/I differ from bidirectional variants like SM6T100CA?
SM6T100AHE3_B/I is unidirectional with cathode-band polarity, intended for DC-biased lines where only positive transients require suppression. In contrast, SM6T100CA is bidirectional, offering symmetrical clamping for AC-coupled or floating signal paths. Their VWM, VBR, and VC ratings are identical, but SM6T100AHE3_B/I cannot replace SM6T100CA in circuits requiring dual-polarity protection without redesign.
What is the thermal resistance of SM6T100AHE3_B/I, and how does it affect PCB layout?
SM6T100AHE3_B/I 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 JEDEC standard. To maintain safe junction temperatures during repeated surges, designers must allocate adequate copper area and consider thermal vias-especially since its power dissipation rating (PD) is 5.0 W at 50 °C ambient. Layout directly impacts sustained surge endurance.
SM6T100AHE3_B/I 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):
- 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/I FAQ
1.How can I place an order for SM6T100AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3_B/I 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/I reliable?
The price and inventory of SM6T100AHE3_B/I 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/I is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3_B/I?
SM6T100AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3_B/I 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/I?
For technical support, including SM6T100AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3_B/I requirements.
6.How does Aetrix verify that SM6T100AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3_B/I 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/I meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3_B/I?
All SM6T100AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3_B/I, 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/I part is unused and in its original packaging.
Return procedure for SM6T100AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3_B/I Tags
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