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Vishay General Semiconductor - Diodes Division SM6T100AHM3_B/H
- Part No.:
- SM6T100AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100AHM3_B/H.pdf
- Description:
- 600W,100V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,767
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Product details
Overview
SM6T100AHM3_B/H 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 protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the SM6T100AHM3_B/H datasheet, SM6T100AHM3_B/H pinout, SM6T100AHM3_B/H application, or SM6T100AHM3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 150 °C max junction temperature, low-inductance SMB package, and compliance with JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, activating above its 100 V standoff voltage to limit transient overvoltages. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 μA at VWM).
Designed for surface-mount automated assembly, it delivers 600 W surge handling per 10/1000 μs waveform on standard 5.0 mm × 5.0 mm copper pads, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 95.0 / 105 V - breakdown occurs within this range at 1 mA test current, ensuring predictable turn-on |
| VC @ IPPM | 137 V at 4.4 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPPM | 600 W - peak transient power absorption capability under standardized surge waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.20 mm height and 5.59 mm length |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress-test requirements |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking; RoHS-compliant and halogen-free (HM3 suffix); MSL Level 1, LF peak 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse bias reference | Connected to system ground or lower-potential node in unidirectional protection configuration |
| Cathode | Clamping output / Surge current sink | Banded end; connects to protected line (e.g., power rail or signal trace) to divert transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges without derating in compact layout |
| Glass passivated junction | Ensures stable VBR over lifetime and improved humidity resistance versus epoxy-passivated alternatives |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., <10 ns rise time), critical for high-speed signal line protection |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensors |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp >100 V spikes. Use Value: Limits rail voltage to ≤137 V during 600 W surges, preventing damage to downstream DC-DC converters and microcontrollers in SM6T100AHM3_B/H-equipped modules. | Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair to suppress ESD and cable-induced noise. Use Value: Clamps transients to safe levels while maintaining signal integrity due to SMB package's low parasitic inductance and sub-1 μA leakage at 100 V. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Secondary-side overvoltage suppression in universal-input AC/DC adapters. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing residual switching spikes after primary-side regulation. Use Value: Withstands repeated 100 V transients and maintains 100 °C/W thermal resistance on standard PCB copper, extending adapter MTBF. | Use Scenario: Protecting -48 V telecom power distribution boards from lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional clamping device installed at board edge to shunt incoming common-mode energy. Use Value: Delivers 137 V clamping at 4.4 A with AEC-Q101 reliability margin, meeting GR-1089-CORE Level 3 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A | Same VWM (100 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 where 600 W margin is required | Choose SMAJ100A only if board space constraints favor smaller SMA footprint and surge energy is confirmed ≤400 W |
| 1.5SMC100A | Same VWM and VC, but higher 1.5 kW PPPM and larger SMC package; not AEC-Q101 qualified | Over-specified for most automotive use cases; lacks automotive qualification documentation and whisker resistance | Select 1.5SMC100A only for non-automotive industrial systems requiring >600 W headroom and no AEC-Q101 mandate |
Compared with SMAJ100A and 1.5SMC100A, SM6T100AHM3_B/H uniquely balances 600 W surge capability, AEC-Q101 qualification, SMB footprint compatibility, and halogen-free RoHS compliance-making it optimal for space-constrained, automotive-grade designs requiring verified reliability.
Availability
SM6T100AHM3_B/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power distribution systems requiring stable component supply and long-term lifecycle support.
Supply support for SM6T100AHM3_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, and protection devices with emphasis on reliability and application-specific performance.
The SM6T Series is designed specifically for robust transient voltage suppression in harsh environments-including automotive, industrial, and telecom-where consistent clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SM6T100AHM3_B/H at its rated peak pulse current?
The SM6T100AHM3_B/H has a maximum clamping voltage (VC) of 137 V when subjected to its specified peak pulse current of 4.4 A under the 10/1000 μs waveform condition. This value is measured per Figure 1 in the Vishay datasheet 88385 and defines the upper voltage limit imposed on protected circuitry during transient events. The SM6T100AHM3_B/H maintains this clamping performance across its qualified operating temperature range.
Is SM6T100AHM3_B/H qualified for automotive applications?
Yes, SM6T100AHM3_B/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and explicit listing in Vishay's automotive-grade ordering codes. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. The SM6T100AHM3_B/H meets requirements for under-hood and cabin electronics where reliability under thermal and mechanical stress is critical.
What does the "HM3" suffix indicate in SM6T100AHM3_B/H?
The "HM3" suffix in SM6T100AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or "M3" versions and confirms compliance with JESD201 Class 2 whisker resistance and JEDEC moisture sensitivity level 1. The SM6T100AHM3_B/H is supplied in 7" tape-and-reel packaging (package code H) with 750 units per reel.
How does the SMB package of SM6T100AHM3_B/H affect its thermal performance?
The SMB (DO-214AA) package of SM6T100AHM3_B/H provides a thermal resistance of 100 °C/W (junction-to-ambient) when mounted on 5.0 mm × 5.0 mm copper pads, and 20 °C/W (junction-to-lead). This enables effective heat dissipation during repetitive surge events. The SM6T100AHM3_B/H's low-profile design supports automated placement while maintaining sufficient thermal mass for transient power handling without external heatsinking.
Can SM6T100AHM3_B/H be used in bidirectional configurations?
No, SM6T100AHM3_B/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. Bidirectional variants require the "CA" suffix (e.g., SM6T100CA). Using SM6T100AHM3_B/H in reverse-biased AC applications would result in forward conduction and failure. For bidirectional protection, select the correctly designated CA-series part-not the SM6T100AHM3_B/H.
SM6T100AHM3_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)
SM6T100AHM3_B/H FAQ
1.How can I place an order for SM6T100AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100AHM3_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 SM6T100AHM3_B/H reliable?
The price and inventory of SM6T100AHM3_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 SM6T100AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T100AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100AHM3_B/H?
SM6T100AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100AHM3_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 SM6T100AHM3_B/H?
For technical support, including SM6T100AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100AHM3_B/H requirements.
6.How does Aetrix verify that SM6T100AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T100AHM3_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 SM6T100AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T100AHM3_B/H?
All SM6T100AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100AHM3_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 SM6T100AHM3_B/H part is unused and in its original packaging.
Return procedure for SM6T100AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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