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Vishay General Semiconductor - Diodes Division SM6T6V8CAHM3_B/H
- Part No.:
- SM6T6V8CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8CAHM3_B/H.pdf
- Description:
- 600W,6.8V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,776
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Product details
Overview
SM6T6V8CAHM3_B/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 6.8 V breakdown voltage (VBR), 600 W peak pulse power (10/1000 μs), 10.5 V clamping voltage at 57 A, and AEC-Q101 qualification for automotive use. It protects signal lines and MOSFET gates in sensor units and power electronics against ESD and inductive switching transients.
For engineers reviewing the SM6T6V8CAHM3_B/H datasheet, SM6T6V8CAHM3_B/H pinout, SM6T6V8CAHM3_B/H application, or SM6T6V8CAHM3_B/H equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (1.54), TJ = −65 °C to +150 °C operating range, halogen-free RoHS compliance, and MSL Level 1 moisture sensitivity rating.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable VBR tolerance (±5% min/max), low leakage (<1000 μA at 5.8 V), and robust surge handling up to 57 A (10/1000 μs).
Designed for surface-mount automation, the device uses matte tin-plated SMB leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Thermal resistance is RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), enabling reliable operation under pulsed stress without heatsinking on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V - Ensures precise, repeatable breakdown onset within ±5% tolerance at 10 mA test current |
| VWM | 5.80 V - Maximum continuous reverse stand-off voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 57 A - Clamps transients to safe levels for downstream 5 V logic or analog circuitry |
| PPPM | 600 W - Sustains high-energy surges (10/1000 μs) without failure in automotive load-dump or ISO 7637-2 scenarios |
| TJ Range | −65 °C to +150 °C - Supports under-hood automotive deployment and industrial ambient extremes |
| Package | SMB (DO-214AA) - Standardized footprint compatible with automated pick-and-place and reflow profiles up to 260 °C peak |
Pinout & Package
SMB (DO-214AA) surface-mount package with symmetrical dual-terminal configuration; no polarity marking required for bidirectional operation. Cathode/anode designation is non-applicable - terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient Input/Output Node | Connects to protected line (e.g., CAN_H or LIN bus); conducts surge current bidirectionally to ground reference |
| Terminal 2 | Transient Input/Output Node | Connects to system ground or common reference; completes low-inductance clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN FD) without polarity concerns |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations for sustainable manufacturing |
| Low clamping ratio (VC/VBR) | 1.54 - Minimizes voltage overshoot during clamping, reducing stress on downstream ICs and MOSFETs |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from load-dump transients and alternator ripple in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt surge energy before reaching signal conditioning amplifier. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and microcontrollers by limiting transient voltage to ≤10.5 V. | Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor drive noise and ground loop surges. IC Role / Device Role / Timing Role: Placed across differential pair (CAN_H/CAN_L) to clamp common-mode transients while preserving signal integrity. Use Value: Maintains >1 Mbps data rate compliance by minimizing added capacitance (<100 pF typical) and avoiding signal distortion. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters subjected to lightning-induced surges on DC output rails. IC Role / Device Role / Timing Role: Mounted between VBUS and GND to clamp fast-rising transients before reaching USB controller ICs. Use Value: Achieves IEC 61000-4-5 Level 3 (1 kV line-earth) immunity without derating due to 600 W pulse rating. | Use Scenario: Front-end protection of Ethernet PHY interfaces in VoIP gateways connected to unshielded twisted-pair telephone lines. IC Role / Device Role / Timing Role: Installed at RJ-11 jack input to absorb longitudinal surges induced by nearby power line faults. Use Value: Survives repeated 10/700 μs telecom surges up to 4 kV thanks to low thermal resistance (RθJL = 20 °C/W) and robust junction construction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Same SMB package, 600 W rating, but VBR = 7.14–7.88 V (wider tolerance), no AEC-Q101 qualification | Commercial-grade only; unsuitable for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification requirements |
| 1.5KE6.8CA | Through-hole DO-15 package, same VBR and PPPM, higher VC = 11.5 V, RθJA ≈ 150 °C/W | Not suitable for high-density SMT layouts or automated assembly | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMAJ6.8CA and 1.5KE6.8CA, SM6T6V8CAHM3_B/H delivers tighter VBR tolerance, guaranteed AEC-Q101 compliance, and superior thermal performance in SMT production-making it the preferred choice for new automotive and industrial designs requiring long-term supply stability and qualification traceability.
Availability
SM6T6V8CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer power adapters, and telecom line cards requiring stable component supply across multi-year production cycles.
Supply support for SM6T6V8CAHM3_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, precision, and automotive-grade qualification.
The SM6T Series is engineered specifically for high-reliability transient suppression in harsh environments-targeting automotive powertrain, ADAS sensors, and industrial control systems where AEC-Q101 validation and consistent clamping performance are mandatory.
FAQ
What does the "CA" suffix indicate in SM6T6V8CAHM3_B/H?
The "CA" suffix in SM6T6V8CAHM3_B/H denotes a bidirectional configuration, meaning the device provides symmetrical clamping for positive and negative transients across both terminals. Unlike unidirectional variants (e.g., SM6T6V8A), SM6T6V8CAHM3_B/H has no cathode marking and functions identically regardless of voltage polarity-critical for protecting AC-coupled or differential interfaces like CAN or RS-485.
Is SM6T6V8CAHM3_B/H suitable for automotive applications?
Yes, SM6T6V8CAHM3_B/H is AEC-Q101 qualified and designated for automotive use via the "HM3" suffix, indicating halogen-free, RoHS-compliant construction with full qualification testing per JEDEC standards. It supports operating temperatures from −65 °C to +150 °C and is validated for under-hood environments, including engine control units and body electronics modules.
What is the maximum clamping voltage of SM6T6V8CAHM3_B/H and how is it measured?
The maximum clamping voltage (VC) of SM6T6V8CAHM3_B/H is 10.5 V, measured at peak pulse current (IPPM) of 57 A using a standardized 10/1000 μs waveform. This value reflects worst-case voltage seen by protected circuitry during surge events and is guaranteed across the full operating temperature range per Vishay's datasheet Figure 1 and Table 1.
Does SM6T6V8CAHM3_B/H require a heatsink for normal operation?
No, SM6T6V8CAHM3_B/H does not require an external heatsink for transient suppression duty cycles. Its RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.) allow safe dissipation of 600 W pulses on standard 5.0 mm × 5.0 mm copper pads. Continuous power dissipation is limited to 5.0 W at TA = 50 °C, well below typical TVS steady-state leakage levels.
How does the "_B/H" suffix in SM6T6V8CAHM3_B/H affect packaging and delivery?
The "_B/H" suffix in SM6T6V8CAHM3_B/H specifies packaging format: "H" indicates 7-inch plastic tape-and-reel delivery with 750 units per reel, optimized for high-speed SMT placement. The "B" denotes revision level (Revision B), confirming compliance with the January 2024 datasheet revision (Document Number 88385) and updated material content reporting per Vishay's categorization guidelines.
SM6T6V8CAHM3_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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57A
- 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)
SM6T6V8CAHM3_B/H FAQ
1.How can I place an order for SM6T6V8CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8CAHM3_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 SM6T6V8CAHM3_B/H reliable?
The price and inventory of SM6T6V8CAHM3_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 SM6T6V8CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T6V8CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8CAHM3_B/H?
SM6T6V8CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8CAHM3_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 SM6T6V8CAHM3_B/H?
For technical support, including SM6T6V8CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8CAHM3_B/H requirements.
6.How does Aetrix verify that SM6T6V8CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T6V8CAHM3_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 SM6T6V8CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T6V8CAHM3_B/H?
All SM6T6V8CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8CAHM3_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 SM6T6V8CAHM3_B/H part is unused and in its original packaging.
Return procedure for SM6T6V8CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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