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Vishay General Semiconductor - Diodes Division SM6T6V8CAHM3/I
- Part No.:
- SM6T6V8CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8CAHM3/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,934
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Product details
Overview
SM6T6V8CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 10.5 V clamping voltage (VC) at 57 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects signal lines in automotive sensor units against ESD and inductive switching transients.
For engineers reviewing the SM6T6V8CAHM3/I datasheet, SM6T6V8CAHM3/I pinout, SM6T6V8CAHM3/I application, or SM6T6V8CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (VC/VBR ≈ 1.54), and SMB footprint compatibility with automated SMT placement.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000 μA at VWM), while the low-inductance SMB package supports fast transient response under 1 ns.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient, with thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise voltage threshold where clamping initiates |
| VWM | 5.80 V - maximum continuous reverse operating voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - actual clamped voltage seen by protected circuit during surge |
| PPPM | 600 W - peak transient power absorption capacity without failure |
| Junction Temp Range | –65 °C to +150 °C - enables operation in automotive engine bay and industrial environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.2 mm height and 3.94 mm length |
Pinout & Package
SM6T6V8CAHM3/I is a two-terminal bidirectional TVS diode in SMB (DO-214AA) package; no polarity marking is present on the case. The device has no cathode/anode designation - both terminals are functionally identical and symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient Current Path (Bidirectional) | Carries surge current in either direction during overvoltage events; connects to protected line |
| Terminal 2 | Transient Current Path (Bidirectional) | Completes low-inductance return path to ground or reference rail; symmetrical with Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in differential or AC-coupled lines |
| AEC-Q101 Qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for safety-critical sensor interfaces |
| Halogen-Free & RoHS | HM3 suffix denotes halogen-free molding compound and full RoHS compliance - meets automotive OEM material restrictions |
| Low Clamping Ratio | VC/VBR ≈ 1.54 - minimizes voltage overshoot during transients, protecting downstream 5 V logic and analog front-ends |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and microcontroller I/O pins in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching PHY or MCU. Use Value: Limits induced surges to ≤10.5 V, preventing latch-up or gate oxide damage in 5 V tolerant interfaces. | Use Scenario: Safeguarding RS-485/CAN FD physical layer transceivers in factory automation PLCs subject to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Low-inductance parallel protection on differential bus lines (CAN_H/CAN_L), maintaining signal integrity up to 5 Mbps. Use Value: 600 W surge rating absorbs repetitive 10/1000 μs transients without degradation, ensuring long-term bus reliability. |
| Consumer USB Port ESD | Telecom Power Supply Input |
Use Scenario: ESD protection for USB 2.0 data lines (D+/D−) in portable medical devices requiring IEC 61000-4-2 Level 4 compliance. IC Role / Device Role / Timing Role: Bidirectional TVS placed adjacent to connector with minimal trace length to reduce inductance-induced voltage overshoot. Use Value: Sub-11 V clamping voltage ensures safe margin below USB PHY's absolute maximum ratings (typically 12 V). | Use Scenario: Secondary-side transient suppression on 12 V DC input rails of VoIP phones and base station power management ICs. IC Role / Device Role / Timing Role: Standoff voltage (5.8 V) allows use on 5 V auxiliary rails; clamps 12 V surges to 10.5 V to protect LDOs and PMICs. Use Value: 150 °C max junction temperature supports operation in sealed telecom enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Same VBR (6.8 V), but lower PPPM = 400 W; SMA package (larger footprint, higher RθJA) | Not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and surge margin |
| 1.5KE6.8CA | Higher PPPM = 1500 W, but axial DO-201 package - incompatible with SMT assembly and high-density layouts | Limited to through-hole prototyping or legacy industrial boards | Choose only if board design lacks SMT capability and requires higher surge headroom |
Compared with SMAJ6.8CA and 1.5KE6.8CA, SM6T6V8CAHM3/I delivers automotive-grade reliability in an optimized SMB footprint, balancing 600 W surge handling, AEC-Q101 validation, and automated manufacturability - making it the preferred choice for new automotive and industrial SMT designs.
Availability
SM6T6V8CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor units, industrial CAN bus nodes, consumer USB interfaces, and telecom power supply inputs requiring stable component supply and long-term lifecycle support.
Supply support for SM6T6V8CAHM3/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 designed specifically for robust transient suppression in space-constrained, high-reliability applications - targeting automotive electronics, industrial controls, and communication infrastructure where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SM6T6V8CAHM3/I at its rated peak pulse current?
The SM6T6V8CAHM3/I has a maximum clamping voltage (VC) of 10.5 V at 57 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Vishay's datasheet Figure 1 and Table on page 2, confirming the device limits transient voltage to a safe level for 5 V logic circuits. The SM6T6V8CAHM3/I maintains this clamping performance bidirectionally due to its symmetrical construction.
Is SM6T6V8CAHM3/I qualified for automotive applications?
Yes, SM6T6V8CAHM3/I is AEC-Q101 qualified, as confirmed by the HM3 suffix and documentation in Vishay's SM6T datasheet (Document Number 88385, Revision 09-Jan-2024). The HM3 variant uses halogen-free, RoHS-compliant materials and undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD - making SM6T6V8CAHM3/I suitable for automotive powertrain, body control, and ADAS sensor modules.
What does the "CA" suffix indicate in SM6T6V8CAHM3/I?
The "CA" suffix in SM6T6V8CAHM3/I explicitly denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity. This distinguishes it from unidirectional variants (e.g., SM6T6V8A) and confirms that SM6T6V8CAHM3/I has no cathode marking and functions identically across both terminals.
What is the standoff voltage (VWM) of SM6T6V8CAHM3/I, and why does it matter?
The standoff voltage (VWM) of SM6T6V8CAHM3/I is 5.80 V - the maximum continuous reverse voltage the device can withstand without exceeding 1000 μA leakage current. This parameter ensures reliable operation on 5 V systems, allowing SM6T6V8CAHM3/I to remain non-conductive during normal operation while activating only during overvoltage events, thereby avoiding power loss or signal distortion.
Does SM6T6V8CAHM3/I require special PCB layout considerations?
Yes, SM6T6V8CAHM3/I benefits from minimized trace inductance: Vishay recommends mounting it directly at the protected port with short, wide traces to both terminals and using 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This layout reduces parasitic inductance, ensuring the specified 10.5 V clamping voltage is achieved - critical because excessive trace length can raise effective clamping voltage beyond the SM6T6V8CAHM3/I datasheet value.
SM6T6V8CAHM3/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:
- Discontinued at Digi-Key
- 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:
- -
- 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/I FAQ
1.How can I place an order for SM6T6V8CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8CAHM3/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 SM6T6V8CAHM3/I reliable?
The price and inventory of SM6T6V8CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T6V8CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM6T6V8CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8CAHM3/I?
SM6T6V8CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8CAHM3/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 SM6T6V8CAHM3/I?
For technical support, including SM6T6V8CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8CAHM3/I requirements.
6.How does Aetrix verify that SM6T6V8CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6T6V8CAHM3/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 SM6T6V8CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM6T6V8CAHM3/I?
All SM6T6V8CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8CAHM3/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 SM6T6V8CAHM3/I part is unused and in its original packaging.
Return procedure for SM6T6V8CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T6V8CAHM3/I Tags
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