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Vishay General Semiconductor - Diodes Division SM6T100AHE3_A/H
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- Part No.:
- SM6T100AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHE3_A/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,767
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Product details
Overview
SM6T100AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, with 100 V standoff voltage (VWM), 105 V minimum breakdown voltage (VBR), 137 V maximum clamping voltage (VC) at 4.4 A IPPM, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SM6T100AHE3_A/H datasheet, SM6T100AHE3_A/H pinout, SM6T100AHE3_A/H application, or SM6T100AHE3_A/H equivalent, key selection criteria include clamping performance under 4.4 A surge, AEC-Q101 qualification for automotive use, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a unidirectional TVS diode, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) to voltage transients. Its clamping behavior is defined by a 10/1000 μs waveform test condition, with VC = 137 V at IPPM = 4.4 A - ensuring predictable overvoltage suppression during load dump or inductive kick events.
The SM6T100AHE3_A/H is rated for TJ = −65 °C to +150 °C operation and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak. Its cathode-band polarity marking and matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85.5 V - maximum reverse operating voltage before conduction begins; defines safe working range for continuous bias |
| VBR (min) | 95.0 V - guaranteed breakdown starts no lower than this; ensures reliable triggering above system nominal voltage |
| VC @ IPPM | 137 V at 4.4 A - clamped voltage during 10/1000 μs surge; limits stress on protected downstream components |
| PPPM | 600 W - peak transient energy handling capacity; supports robust protection in automotive load-dump scenarios |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance; requires adequate PCB copper area for thermal management |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode identified by a band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reverse-biased during clamping | Connected to ground or low-side reference; forms current path during transient conduction |
| Cathode | Current exit terminal in forward bias; high-impedance node during normal operation | Connected to protected line (e.g., 12 V rail); voltage clamping occurs between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 5a (load dump) up to 120 V with margin, without degradation |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (<1 ns response), critical for protecting sensitive gate drivers |
| Glass passivated junction | Ensures stable VBR over time and temperature; eliminates risk of moisture-induced parameter drift |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rails to clamp surges up to 120 V before they reach DC-DC converters and microcontrollers. Use Value: Limits peak voltage to ≤137 V at 4.4 A, preventing latch-up or oxide breakdown in downstream 3.3 V/5 V logic. | Use Scenario: Protecting gate driver ICs from inductive kickback during IGBT switching in HVAC compressors. IC Role / Device Role / Timing Role: Clamping transient spikes on isolated gate supply lines caused by transformer leakage inductance. Use Value: Fast <1 ns response and low clamping voltage preserve gate oxide integrity and prevent false turn-on. |
| Telecom Power Interface | Consumer Appliance Control Board |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V input rail upstream of DC-DC regulation stage. Use Value: 600 W rating absorbs multiple 10/1000 μs surges without parametric shift; RoHS-compliant HE3 suffix meets regulatory requirements. | Use Scenario: Shielding MCU I/O and relay driver circuits from relay coil flyback in washing machine control boards. IC Role / Device Role / Timing Role: Localized TVS mounted directly at relay coil terminals to quench 300 V spikes. Use Value: SMB footprint enables compact layout; 150 °C TJ rating supports sealed enclosure thermal environments. |
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-E3/52 | Same VWM (85.5 V) and VC (137 V), but 400 W PPPM rating and SMA package (higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump | Select when cost sensitivity outweighs peak power requirement and board space allows larger thermal pad |
| 1.5SMC100A | Same electrical specs but SMC (DO-214AB) package - 2.5× higher thermal mass and RθJL = 10 °C/W vs. 20 °C/W | Better sustained power handling but incompatible with fine-pitch SMB footprints | Choose for industrial systems requiring longer surge duration tolerance and where PCB real estate permits larger case |
Compared with SMAJ100A-E3/52 and 1.5SMC100A, the SM6T100AHE3_A/H delivers optimal balance of AEC-Q101 qualification, 600 W surge capability, and SMB footprint - making it the preferred choice for space-constrained automotive modules needing validated reliability.
Availability
SM6T100AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, telecom power interface, and consumer appliance control board designs requiring stable component supply and long-term lifecycle support.
Supply support for SM6T100AHE3_A/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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SM6T Series was engineered specifically for surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where AEC-Q101 compliance, low clamping voltage, and automated assembly compatibility are mandatory.
FAQ
What is the clamping voltage of SM6T100AHE3_A/H at its rated peak pulse current?
The SM6T100AHE3_A/H has a maximum clamping voltage (VC) of 137 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 4.4 A. This value is measured under standardized test conditions per JEDEC and ensures predictable overvoltage limiting for protected circuitry. The SM6T100AHE3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SM6T100AHE3_A/H qualified for automotive applications?
Yes, SM6T100AHE3_A/H is AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge - confirming suitability for under-hood and body-control module applications. The SM6T100AHE3_A/H meets all requirements specified in the AEC-Q101 standard for transient voltage suppressors.
What package type does SM6T100AHE3_A/H use, and what are its mounting requirements?
SM6T100AHE3_A/H uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads. It requires mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for thermal derating compliance. The SM6T100AHE3_A/H is rated MSL Level 1 and supports lead-free reflow up to 260 °C peak temperature per J-STD-020.
How does the breakdown voltage specification of SM6T100AHE3_A/H compare to its standoff voltage?
The SM6T100AHE3_A/H has a standoff voltage (VWM) of 85.5 V and a minimum breakdown voltage (VBR) of 95.0 V - a 11% overvoltage margin that prevents premature conduction during normal operation while ensuring rapid avalanche onset during transients. This gap is critical for stable biasing of downstream regulators and sensors. The SM6T100AHE3_A/H maintains this relationship across its full operating temperature range.
Can SM6T100AHE3_A/H be used in bidirectional configurations?
No, SM6T100AHE3_A/H is a unidirectional TVS diode, as confirmed by its part number suffix "A" and cathode-band marking. Bidirectional variants require the "CA" suffix (e.g., SM6T100CA). Using SM6T100AHE3_A/H in reverse-biased AC applications would result in forward conduction and failure. Always verify polarity alignment during PCB layout - the SM6T100AHE3_A/H must be oriented with cathode toward the protected line.
SM6T100AHE3_A/H 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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for SM6T100AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHE3_A/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_A/H reliable?
The price and inventory of SM6T100AHE3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for SM6T100AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHE3_A/H?
SM6T100AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHE3_A/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_A/H?
For technical support, including SM6T100AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHE3_A/H requirements.
6.How does Aetrix verify that SM6T100AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T100AHE3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of SM6T100AHE3_A/H?
All SM6T100AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHE3_A/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_A/H part is unused and in its original packaging.
Return procedure for SM6T100AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100AHE3_A/H Tags
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