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Vishay General Semiconductor - Diodes Division SM6T100AHE3/52
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- Part No.:
- SM6T100AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3/52.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,196
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Product details
Overview
SM6T100AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM = 85.5 V), 137 V clamping voltage at 4.4 A peak pulse current (10/1000 μs), and 600 W peak pulse power. It features AEC-Q101 qualification, glass passivated junction, and low-inductance design for automotive-grade ESD and surge protection on power rails and signal lines.
For engineers reviewing the SM6T100AHE3/52 datasheet, SM6T100AHE3/52 pinout, SM6T100AHE3/52 application, or SM6T100AHE3/52 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 100 °C/W), AEC-Q101 compliance status, and SMB package compatibility with automated SMT placement.
Technical Context
The SM6T100AHE3/52 operates as a unidirectional avalanche-clamping device, triggered when reverse voltage exceeds its breakdown threshold (VBR min = 95.0 V, max = 105 V at 1 mA). Its clamping action limits transient-induced overvoltage to ≤137 V at 4.4 A, protecting downstream ICs and MOSFETs from inductive switching spikes and lightning surges.
Designed for surface-mount use on PCBs with minimum 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power handling with derating above 25 °C ambient and supports continuous power dissipation of 5.0 W at 50 °C on infinite heatsink. Junction temperature range spans −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum steady-state reverse voltage before clamping begins; defines operating margin below breakdown |
| VBR (min/max) | 95.0 / 105 V at 1 mA - ensures reliable avalanche initiation within tight tolerance band for consistent protection threshold |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - peak clamped voltage seen by protected circuit during standardized surge event |
| PPPM | 600 W - peak transient energy absorption capability without failure under defined waveform |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; determines self-heating under sustained power dissipation |
| TJ max | +150 °C - maximum allowable junction temperature; sets upper limit for thermal design margin in automotive environments |
| ID @ VWM | 1.0 μA - reverse leakage at standoff voltage; critical for low-power sensor rail integrity and battery drain control |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground during overvoltage events |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Enhances long-term reliability and moisture resistance in harsh environmental conditions |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against load dump and inductive kick events in 12 V/24 V systems |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control modules from load dump transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits voltage excursion to ≤137 V during 35 V/100 ms load dump, preventing damage to LDOs and microcontrollers. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Reverse-biased protection element on 4–20 mA current loop outputs. Use Value: Clamps ESD events (IEC 61000-4-2 ±8 kV contact) to safe levels while maintaining <1 μA leakage at 24 V nominal. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
Use Scenario: Safeguarding AC/DC adapter secondary-side outputs against lightning-induced surges in DSL modems. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC bus feeding PoE interface circuitry. Use Value: Absorbs 600 W surge energy (10/1000 μs) without degradation, preserving isolation barrier integrity. | Use Scenario: Adding secondary-side surge immunity to USB-C power delivery paths in portable monitors. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line upstream of USB PD controller. Use Value: Maintains 85.5 V VWM margin above 20 V PD max, enabling clean clamping at 137 V before silicon fails. |
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, 100 V VWM, but lower PPPM (400 W) and higher VC (156 V at 3.8 A) | Limited to less severe surge environments; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or 600 W headroom requirements |
| 1.5SMC100A | Higher power (1500 W), larger SMC (DO-214AB) package, same VWM/VC specs, AEC-Q101 available in HE3 variant | Requires PCB layout change; suited for high-energy industrial mains inputs | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and SMB footprint is not constrained |
Compared with SMAJ100A-E3/52 and 1.5SMC100A, the SM6T100AHE3/52 uniquely balances AEC-Q101 compliance, 600 W capability, and SMB footprint-making it optimal for space-constrained automotive and industrial edge nodes where qualification and reliability are non-negotiable.
Availability
SM6T100AHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor transmitters, telecom power supplies, and consumer USB PD systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T100AHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in automotive, industrial, and communications infrastructure-designed to meet stringent AEC-Q101, JEDEC, and IEC standards while supporting automated SMT manufacturing.
FAQ
What is the clamping voltage of SM6T100AHE3/52 under standard surge conditions?
The SM6T100AHE3/52 has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs transient waveform at 4.4 A peak pulse current. This value is measured per industry-standard test conditions and reflects the actual voltage imposed on protected circuitry during surge events, ensuring downstream components remain within safe operating limits.
Is SM6T100AHE3/52 qualified for automotive applications?
Yes, SM6T100AHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3". This qualification validates its reliability for automotive use cases including engine control, body electronics, and ADAS sensor interfaces under extended temperature cycling, humidity, and mechanical stress conditions.
What package type does SM6T100AHE3/52 use, and what are its mounting requirements?
SM6T100AHE3/52 uses the SMB (DO-214AA) surface-mount package. It requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for thermal performance and must be mounted using lead-free reflow per J-STD-020 MSL Level 1 (peak 260 °C), with matte tin-plated leads compliant to JESD 22-B102.
How does the breakdown voltage tolerance of SM6T100AHE3/52 affect circuit design?
The SM6T100AHE3/52 has a specified breakdown voltage range of 95.0 V to 105 V at 1 mA test current. Designers must ensure system operating voltage remains below the minimum VBR (95.0 V) with margin to avoid premature conduction, while verifying that clamping (≤137 V) stays below absolute maximum ratings of protected ICs.
Can SM6T100AHE3/52 replace older generation TVS diodes like P6KE100A in new designs?
No-SM6T100AHE3/52 is not a direct replacement for P6KE100A due to different packages (SMB vs. DO-15), thermal characteristics (RθJA = 100 °C/W vs. ~50 °C/W), and surge waveform response. While both have similar VWM and VC, the SM6T100AHE3/52 offers superior SMT manufacturability and AEC-Q101 qualification, but requires PCB redesign and thermal validation.
SM6T100AHE3/52 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SM6T100AHE3/52 FAQ
1.How can I place an order for SM6T100AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3/52 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 SM6T100AHE3/52 reliable?
The price and inventory of SM6T100AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100AHE3/52 is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3/52?
SM6T100AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3/52 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 SM6T100AHE3/52?
For technical support, including SM6T100AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3/52 requirements.
6.How does Aetrix verify that SM6T100AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3/52 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 SM6T100AHE3/52 meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3/52?
All SM6T100AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3/52, 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 SM6T100AHE3/52 part is unused and in its original packaging.
Return procedure for SM6T100AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3/52 Tags
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