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Vishay General Semiconductor - Diodes Division SM6T100CAHM3_A/I
- Part No.:
- SM6T100CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHM3_A/I.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,771
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Product details
Overview
SM6T100CAHM3_A/I from Vishay General Semiconductor is a bidirectional 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 (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects signal lines and power rails in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SM6T100CAHM3_A/I datasheet, SM6T100CAHM3_A/I pinout, SM6T100CAHM3_A/I application, or SM6T100CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (VC/VWM = 1.37), and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical breakdown (VBR min/max = 95.0–105 V), clamping (VC = 137 V), and leakage (ID ≤ 1.0 μA at VWM) characteristics in either direction. Its glass-passivated junction ensures stable avalanche performance and low inductance for fast transient response.
Designed for surface-mount automated assembly, the device meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The SMB package supports 0.2" × 0.2" copper pads per terminal to sustain 600 W pulse dissipation per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse standoff voltage before clamping begins |
| VBR (min/max) | 95.0 / 105 V - guaranteed breakdown voltage range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 137 V at 4.4 A - clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 600 W - peak pulse power handling capability under standardized transient waveform |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on recommended 5.0 mm × 5.0 mm copper pads |
| TJ max. | +150 °C - maximum operating junction temperature, enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Bidirectional construction means no polarity marking; terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (1) | Bidirectional transient path | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity |
| Anode/Cathode (2) | Bidirectional transient path | Second terminal completes symmetrical clamping loop; identical electrical behavior to Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events without derating |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low clamping ratio (VC/VWM = 1.37) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing without dry-pack requirements |
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics over temperature and lifetime |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and microcontroller GPIOs in automotive cabin sensors exposed to load dump and battery reversal transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Maintains signal integrity by limiting transient voltage to ≤137 V while surviving repeated 600 W pulses per ISO 16750-2. | Use Scenario: Safeguarding two-wire differential CAN FD physical layer against ESD (±25 kV contact) and fast transient bursts in factory automation controllers. IC Role / Device Role / Timing Role: Low-inductance TVS mounted across CANH–CANL lines to clamp common-mode surges without distorting data eye diagram. Use Value: Preserves bit-rate integrity up to 5 Mbps by minimizing capacitive loading (<100 pF typical) and ensuring sub-1 ns response time. |
| Power Supply Input Stage | Consumer Appliance Motor Control |
Use Scenario: Front-end protection of 12 V/24 V DC input rails in embedded power supplies subjected to inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Primary surge suppression device placed after fuse but before DC-DC converter input capacitor. Use Value: Absorbs 10/1000 μs transients up to 600 W without degradation, extending system MTBF in harsh industrial environments. | Use Scenario: Shielding MCU-based motor driver ICs in washing machine control boards from commutation spikes generated by universal motors and BLDC inverters. IC Role / Device Role / Timing Role: Secondary-level TVS located at gate driver supply pins and feedback sensing nodes to prevent latch-up or false triggering. Use Value: Halogen-free construction meets IEC 62368-1 flammability and environmental compliance for white goods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Same VWM (100 V) and VC (137 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a where 600 W is required | Select SMAJ100CA only when board space is constrained and surge energy is confirmed ≤400 W |
| SMCJ100CA | Higher PPPM (1500 W), same VWM/VC, larger SMC package (DO-214AB), RθJA = 40 °C/W | Overqualified for most 12/24 V systems; requires larger PCB area and higher cost | Choose SMCJ100CA only when sustained multi-pulse testing or extended thermal margin is mandated |
Compared with SMAJ100CA and SMCJ100CA, the SM6T100CAHM3_A/I delivers optimal balance of 600 W surge capacity, AEC-Q101 qualification, SMB footprint, and halogen-free compliance-making it the preferred choice for cost-sensitive, space-constrained automotive and industrial designs requiring validated reliability.
Availability
SM6T100CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN bus nodes, and consumer appliance motor control systems requiring stable component supply and long-term lifecycle support.
Supply support for SM6T100CAHM3_A/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 high-reliability, automotive-qualified components.
The SM6T Series is engineered specifically for robust transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, halogen-free materials, and optimized SMB packaging for automated manufacturing.
FAQ
What does the "CA" suffix indicate in SM6T100CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration: the SM6T100CAHM3_A/I provides symmetrical clamping in both forward and reverse directions, unlike unidirectional variants (e.g., SM6T100AHM3_A/I). This enables protection of AC-coupled or differential signal lines without polarity concerns, and eliminates the need for orientation-specific placement during assembly.
Is SM6T100CAHM3_A/I qualified for automotive use?
Yes, SM6T100CAHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" (halogen-free, RoHS-compliant, AEC-Q101 qualified) and revision "_A/I" indicating automotive-grade traceability and test documentation. It is approved for use in engine control units, body electronics, and ADAS sensor interfaces per automotive reliability standards.
What is the maximum clamping voltage of SM6T100CAHM3_A/I under surge conditions?
The SM6T100CAHM3_A/I has a maximum clamping voltage (VC) of 137 V when subjected to its rated peak pulse current of 4.4 A with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the SMB package of SM6T100CAHM3_A/I affect thermal performance?
The SMB (DO-214AA) package of SM6T100CAHM3_A/I delivers 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 terminal. This allows reliable operation at +150 °C junction temperature under pulsed conditions, provided PCB layout adheres to Vishay's recommended pad dimensions.
Does SM6T100CAHM3_A/I meet lead-free and halogen-free requirements?
Yes, SM6T100CAHM3_A/I uses halogen-free molding compound and matte tin-plated leads, meeting both RoHS Directive 2011/65/EU and IEC 61249-2-21:2011 halogen-free definitions. The "HM3" suffix explicitly confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified status per Vishay's ordering nomenclature.
SM6T100CAHM3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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 (SMB)
SM6T100CAHM3_A/I FAQ
1.How can I place an order for SM6T100CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHM3_A/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 SM6T100CAHM3_A/I reliable?
The price and inventory of SM6T100CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T100CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T100CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHM3_A/I?
SM6T100CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHM3_A/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 SM6T100CAHM3_A/I?
For technical support, including SM6T100CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHM3_A/I requirements.
6.How does Aetrix verify that SM6T100CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHM3_A/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 SM6T100CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T100CAHM3_A/I?
All SM6T100CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHM3_A/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 SM6T100CAHM3_A/I part is unused and in its original packaging.
Return procedure for SM6T100CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHM3_A/I Tags
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