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Vishay General Semiconductor - Diodes Division SM6T100CAHM3_B/H
- Part No.:
- SM6T100CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T100CAHM3_B/H.pdf
- Description:
- 600W,100V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,936
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Product details
Overview
SM6T100CAHM3_B/H 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 maximum clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It provides robust ESD and surge protection for automotive sensor signal lines, power rails, and I/O interfaces.
For engineers reviewing the SM6T100CAHM3_B/H datasheet, SM6T100CAHM3_B/H pinout, SM6T100CAHM3_B/H application, or SM6T100CAHM3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding its breakdown voltage (VBR = 95–105 V), it avalanches symmetrically in both directions to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and repeatable clamping performance across temperature.
Designed for surface-mount use on 0.2" × 0.2" copper pads, the device delivers 600 W peak pulse power handling per JEDEC-standard 10/1000 μs waveform while maintaining low inductance and meeting MSL Level 1 reflow requirements (260 °C peak).
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; defines turn-on threshold |
| VC @ IPPM | 137 V at 4.4 A - Clamping voltage under 10/1000 μs surge; limits stress on protected ICs |
| PPPM | 600 W - Peak transient energy absorption capability without failure |
| RθJL | 20 °C/W - Low junction-to-lead thermal resistance enables efficient heat transfer to PCB |
| TJ max. | +150 °C - Maximum junction temperature rating supports under-hood automotive operation |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. No polarity marking - bidirectional functionality confirmed by CA suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; clamping node in negative transients | One side of symmetrical avalanche junction; connects to protected line or ground reference |
| Cathode | Current exit terminal in forward bias; clamping node in positive transients | Other side of symmetrical avalanche junction; forms bidirectional conduction path with Anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Symmetric VBR and VC in both polarities enables single-device protection of AC-coupled or floating signal paths |
| 600 W peak pulse power | Withstands high-energy surges (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation when mounted per recommended pad layout |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, lightning-induced spikes) |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors exposed to load-dump and inductive switching noise in vehicle cabins or powertrain compartments. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between signal line and chassis ground to clamp voltage excursions above 100 V. Use Value: Prevents latch-up or permanent damage to 12-bit ADC front-ends and op-amps by limiting transient voltage to ≤137 V at 4.4 A. | Use Scenario: Safeguarding differential CANH/CANL nodes against ESD events and coupled surges in factory automation controllers and motor drives. IC Role / Device Role / Timing Role: Bidirectional clamping element connected across CAN bus pair to absorb common-mode transients without disrupting data integrity. Use Value: Maintains signal eye diagram integrity during ±8 kV contact ESD (IEC 61000-4-2) due to symmetric clamping and sub-100 ps response time. |
| Consumer Power Adapter Input | Telecom DC Power Feed |
Use Scenario: Secondary-side overvoltage suppression on 12 V/24 V DC outputs of wall adapters and PoE injectors subject to capacitor discharge and hot-plug transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to clamp post-regulator surges. Use Value: Limits output voltage excursion to 137 V during 100 ns–1 μs transients, protecting downstream USB-PD controllers and PMICs. | Use Scenario: Surge protection on -48 V DC telecom power feeds entering remote radio units and baseband processing boards. IC Role / Device Role / Timing Role: Bidirectional shunt protector tied between -48 V rail and return, referenced to system ground. Use Value: Absorbs up to 600 W of induced lightning energy (IEC 61000-4-5, 10/1000 μs) without failure, preserving uptime in outdoor infrastructure. |
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), lower PPPM (400 W), SMA package (higher RθJA = 150 °C/W) | Limited to lower-energy transients; less suitable for automotive load-dump scenarios | Select when cost sensitivity outweighs peak power margin and thermal performance is less critical |
| SMCJ100CA | Same VWM (100 V), higher PPPM (1500 W), larger SMC package (RθJL = 10 °C/W) | Overqualified for space-constrained designs; requires larger PCB footprint | Select when system-level surge immunity exceeds ISO 16750-2 Level IV and board area permits SMC outline |
Compared with SMAJ100CA and SMCJ100CA, the SM6T100CAHM3_B/H delivers optimal balance of 600 W surge capacity, SMB footprint, AEC-Q101 qualification, and halogen-free compliance-making it preferred for automotive and industrial SMT designs where reliability, size, and regulatory alignment are jointly prioritized.
Availability
SM6T100CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, and telecom DC power systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SM6T100CAHM3_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, 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 equipment-designed to meet stringent AEC-Q101, RoHS, and UL 94 V-0 requirements while enabling automated assembly.
FAQ
What does the "CA" suffix indicate in SM6T100CAHM3_B/H?
The "CA" suffix in SM6T100CAHM3_B/H denotes bidirectional functionality: the device clamps symmetrically for both positive and negative voltage transients, unlike unidirectional variants ending in "A". This makes SM6T100CAHM3_B/H ideal for protecting AC-coupled signals, differential buses like CAN or RS-485, and floating power domains where polarity reversal may occur.
Is SM6T100CAHM3_B/H qualified for automotive use?
Yes, SM6T100CAHM3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure ("HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified grade). It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life-validating suitability for under-hood and cabin electronics in passenger and commercial vehicles.
What is the maximum clamping voltage of SM6T100CAHM3_B/H and at what current is it specified?
The maximum clamping voltage (VC) of SM6T100CAHM3_B/H is 137 V, measured at a peak pulse current (IPPM) of 4.4 A using the standardized 10/1000 μs double-exponential waveform. This value ensures protected circuitry sees no more than 137 V during surge events, critical for safeguarding 100 V-rated components downstream.
How does the SMB (DO-214AA) package of SM6T100CAHM3_B/H compare thermally to larger packages?
The SMB package of SM6T100CAHM3_B/H offers RθJL = 20 °C/W (junction-to-lead), significantly better than SMA (RθJL ≈ 35 °C/W) and competitive with SMC for board-level thermal management. When mounted on 0.2" × 0.2" copper pads, its RθJA is 100 °C/W-enabling reliable 5.0 W steady-state dissipation at TA = 50 °C without heatsinking.
Does SM6T100CAHM3_B/H require polarity-aware PCB layout?
No-SM6T100CAHM3_B/H has no polarity marking and is inherently bidirectional due to its symmetrical avalanche junction structure. Unlike unidirectional TVS diodes, it can be placed in either orientation on the PCB without affecting clamping behavior, simplifying layout and reducing assembly errors in high-volume SMT production.
SM6T100CAHM3_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:
- -
- 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:
- 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)
SM6T100CAHM3_B/H FAQ
1.How can I place an order for SM6T100CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T100CAHM3_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 SM6T100CAHM3_B/H reliable?
The price and inventory of SM6T100CAHM3_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 SM6T100CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T100CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T100CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T100CAHM3_B/H?
SM6T100CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T100CAHM3_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 SM6T100CAHM3_B/H?
For technical support, including SM6T100CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T100CAHM3_B/H requirements.
6.How does Aetrix verify that SM6T100CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T100CAHM3_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 SM6T100CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T100CAHM3_B/H?
All SM6T100CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T100CAHM3_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 SM6T100CAHM3_B/H part is unused and in its original packaging.
Return procedure for SM6T100CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T100CAHM3_B/H Tags
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