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Vishay General Semiconductor - Diodes Division SM6T100AHE3/5B
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- Part No.:
- SM6T100AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3/5B.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,213
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Product details
Overview
SM6T100AHE3/5B 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 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-designed for automotive sensor line protection against load dump and ESD transients.
For engineers reviewing the SM6T100AHE3/5B datasheet, SM6T100AHE3/5B pinout, SM6T100AHE3/5B application, or SM6T100AHE3/5B equivalent, key selection criteria include verified clamping performance at 100 V nominal system voltage, AEC-Q101 qualification status, SMB thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging avalanche breakdown to limit transient overvoltages before they reach downstream ICs or MOSFETs. Its 10/1000 μs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5 Level 3–4 requirements.
The SM6T100AHE3/5B integrates a low-inductance SMB package optimized for fast response (<1 ns typical), minimal parasitic capacitance (≈100 pF at 0 V), and robust thermal derating up to 150 °C junction temperature-enabling reliable operation in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; sets upper limit for normal circuit bias. |
| VBR min/max | 95.0 V / 105 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on within 5% tolerance. |
| VC @ IPPM | 137 V at 4.4 A (10/1000 μs) - Clamped voltage seen by protected circuit during worst-case surge; defines safe margin below IC absolute max ratings. |
| PPPM | 600 W - Peak transient energy handling capacity; supports ISO 7637-2 Pulse 1/2a/5a compliance in 12 V automotive systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in engine control units and ADAS modules without thermal shutdown. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (reverse bias) | Connected to protected signal or power rail; conducts surge current to ground when V > VBR. |
| Cathode | Reference node (reverse bias) | Banded end; tied to system ground or low-impedance return path to complete clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-required for powertrain and body electronics. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; critical for under-hood longevity. |
| 600 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12 V systems without external series impedance. |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (<1 ns response); preserves clamping integrity for ESD and switching noise. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., oxygen, pressure) from load dump and alternator ripple in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, absorbing transients before reaching PHY layer. Use Value: Prevents latch-up or permanent damage to transceivers rated for ≤120 V abs max, using 137 V clamping headroom aligned with ISO 16750-2. | Use Scenario: Safeguarding 24 V DC digital input modules in factory automation against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS on field-side input traces, triggered only during >85.5 V surges to avoid false triggering during normal operation. Use Value: Enables direct connection to industrial 24 V buses without series resistors, maintaining signal integrity while meeting IEC 61000-4-4 Level 4 immunity. |
| Power Supply Rail Clamp | Telecom Line Interface Protection |
Use Scenario: Secondary overvoltage clamp on 100 V intermediate bus rails in telecom rectifiers and PoE injectors subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-acting shunt device parallel to bulk capacitor, limiting rail excursions during 10/1000 μs transients. Use Value: Complements primary MOV-based protection by providing precise 137 V clamping-reducing stress on downstream DC-DC converters. | Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI pairs) in enterprise switches against ESD and induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on differential data lines referenced to local ground plane. Use Value: Maintains <100 pF junction capacitance to avoid signal integrity degradation at 100 Mbps/1 Gbps speeds while passing IEC 61000-4-2 ±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5B | Same SMB package, but lower PPPM (400 W), higher VC (156 V at 3.8 A), no AEC-Q101 qualification. | Not suitable for automotive safety-critical nodes requiring AEC-Q101; acceptable for commercial industrial I/O. | Select SMAJ100A-E3/5B only if AEC-Q101 is not mandated and clamping voltage margin allows 156 V. |
| 1.5SMC100A | Larger SMC (DO-214AB) package, same VWM/VC specs, 1500 W PPPM, RθJA ≈ 30 °C/W. | Requires larger PCB footprint and different pad layout; suited for high-energy surge zones like main power entry. | Choose 1.5SMC100A where thermal management is critical and board space permits larger package. |
Compared with SMAJ100A-E3/5B and 1.5SMC100A, SM6T100AHE3/5B uniquely balances AEC-Q101 compliance, SMB footprint, and 600 W surge capability-making it optimal for space-constrained automotive ECUs needing validated reliability without thermal derating penalties.
Availability
SM6T100AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power rail clamping, and Ethernet PHY protection requiring stable component supply across production lifecycles.
Supply support for SM6T100AHE3/5B 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, efficiency, and automotive-grade validation.
The SM6T Series was engineered specifically for high-reliability transient suppression in automotive and industrial environments-prioritizing AEC-Q101 qualification, low-clamp-voltage precision, and robust SMT manufacturability.
FAQ
What is the maximum clamping voltage of SM6T100AHE3/5B under standard test conditions?
The SM6T100AHE3/5B 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 JEDEC standards and represents the upper voltage limit imposed on protected circuits during surge events-critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SM6T100AHE3/5B qualified for automotive applications?
Yes, SM6T100AHE3/5B is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024. This qualification covers temperature cycling, highly accelerated life testing (HALT), and ESD robustness-making SM6T100AHE3/5B suitable for engine control, ADAS, and body electronics in passenger vehicles and commercial fleets.
What package type does SM6T100AHE3/5B use, and what are its mounting requirements?
SM6T100AHE3/5B uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, compliant with J-STD-002 solderability and JESD22-B102 whisker testing. The device meets MSL Level 1 and supports peak reflow temperatures up to 260 °C.
How does the standoff voltage (VWM) of SM6T100AHE3/5B relate to its breakdown voltage (VBR)?
SM6T100AHE3/5B has a VWM of 85.5 V and a VBR range of 95.0 V to 105 V at 1.0 mA test current. The 10 V margin between VWM and minimum VBR ensures stable non-conduction during normal operation while guaranteeing reliable avalanche triggering during transients-preventing false triggering and enabling use on 100 V nominal rails.
Can SM6T100AHE3/5B be used in bidirectional configurations?
No, SM6T100AHE3/5B is unidirectional only, as indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" suffix (e.g., SM6T100CA). Using SM6T100AHE3/5B in reverse-biased AC applications would result in forward conduction and failure-always verify polarity alignment in schematic and layout.
SM6T100AHE3/5B 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):
- 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)
SM6T100AHE3/5B FAQ
1.How can I place an order for SM6T100AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3/5B 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 SM6T100AHE3/5B reliable?
The price and inventory of SM6T100AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100AHE3/5B is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3/5B?
SM6T100AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3/5B 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 SM6T100AHE3/5B?
For technical support, including SM6T100AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3/5B requirements.
6.How does Aetrix verify that SM6T100AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3/5B 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 SM6T100AHE3/5B meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3/5B?
All SM6T100AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3/5B, 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 SM6T100AHE3/5B part is unused and in its original packaging.
Return procedure for SM6T100AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3/5B Tags
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