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Vishay General Semiconductor - Diodes Division SM6T6V8CAHE3_B/H
- Part No.:
- SM6T6V8CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8CAHE3_B/H.pdf
- Description:
- 600W,6.8V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,627
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Product details
Overview
SM6T6V8CAHE3_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), and 10.5 V maximum clamping voltage at 57 A. It protects signal lines and ICs in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SM6T6V8CAHE3_B/H datasheet, SM6T6V8CAHE3_B/H pinout, SM6T6V8CAHE3_B/H application, or SM6T6V8CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (1.54), and SMB footprint compatibility with automated SMT assembly.
Technical Context
This device operates as a bidirectional voltage-clamping protector with symmetrical avalanche breakdown in both polarities. Its 6.8 V nominal breakdown (min 6.45 V, max 7.14 V at 10 mA) ensures precise overvoltage thresholding for 5 V logic rails and CAN/LIN bus protection.
Designed for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it delivers 10.5 V clamping at 57 A (10/1000 μs), achieving a clamping ratio of 1.54 - critical for safeguarding 5 V-tolerant inputs without overstress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise turn-on threshold for 5 V system protection |
| VWM | 5.80 V - maximum reverse stand-off voltage; ensures no conduction during normal 5 V operation |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - clamping level that keeps protected IC inputs below absolute maximum rating |
| PPPM | 600 W - peak surge handling capacity sufficient for ISO 7637-2 Pulse 1/2a/5a waveforms |
| IPPM | 57 A - peak pulse current capability validated under standard 10/1000 μs waveform |
| TJ max. | +150 °C - junction temperature rating 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, bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional clamping allows placement without orientation check |
| Case (cathode band absent) | Thermal and mechanical anchor | No polarity indicator; requires layout symmetry for thermal uniformity and manufacturability |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against severe automotive load dump and inductive kick events |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR = 1.54) | Minimizes voltage overshoot during transients, preserving margin for 5 V logic ICs |
| MSL Level 1 (260 °C reflow) | Supports lead-free reflow soldering without preconditioning or dry pack requirements |
| Glass passivated junction | Ensures stable leakage performance and long-term reliability under humidity and bias stress |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and pressure/temperature sensor outputs in engine compartments exposed to ISO 7637-2 pulses and ESD. IC Role / Device Role: Bidirectional clamping TVS placed across differential signal pair or supply-to-ground. Use Value: Maintains signal integrity by limiting transients to ≤10.5 V while surviving 57 A surges - critical for AEC-Q100 Grade 1 compliance. | Use Scenario: Shielding CAN H/L lines in PLC I/O modules against EFT bursts and cable discharge events. IC Role / Device Role: Low-inductance, symmetrical clamp on differential bus lines adjacent to transceiver pins. Use Value: Achieves <1 ns response time and 600 W surge handling without degrading CAN bit timing or common-mode noise rejection. |
| Consumer USB Port ESD Protection | Power Supply Input Clamp |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in portable medical devices against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role: Bidirectional TVS mounted directly at connector, before ESD-rated USB transceiver. Use Value: Clamps to 10.5 V within nanoseconds, preventing latch-up in 5 V tolerant PHYs while meeting Class 4 immunity. | Use Scenario: Secondary-side overvoltage clamp on 5 V DC-DC output feeding microcontrollers in factory automation controllers. IC Role / Device Role: Standby shunt protector across regulated rail to absorb regulator failure or feedback loop faults. Use Value: Limits fault voltage to 10.5 V before fuse interruption, protecting downstream 5 V logic without crowbar circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Same SMB package, 600 W rating, but VBR min/max = 6.45/7.14 V identical; higher RθJA (120 °C/W vs. 100 °C/W) | Less effective thermal dissipation in high ambient or high-duty-cycle surge environments | Select SM6T6V8CAHE3_B/H when board-level thermal management is constrained or AEC-Q101 qualification is mandatory |
| 1.5KE6.8CA | Higher power (1500 W), DO-201 package (axial leaded), VBR = 6.45–7.14 V, but not SMT-compatible and unqualified for automotive | Requires through-hole assembly and manual rework; unsuitable for automated production or under-hood use | Choose SM6T6V8CAHE3_B/H for SMT volume manufacturing, space-constrained layouts, and automotive OEM compliance |
Compared with SMAJ6.8CA and 1.5KE6.8CA, SM6T6V8CAHE3_B/H offers superior thermal resistance (100 °C/W), AEC-Q101 qualification, and optimized SMB footprint - making it the preferred choice for automotive and high-reliability industrial SMT designs where board area, reflow compatibility, and qualification traceability are critical.
Availability
SM6T6V8CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and consumer USB port ESD protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SM6T6V8CAHE3_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 and application-specific performance.
The SM6T Series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering AEC-Q101-qualified, low-clamping TVS diodes in compact SMB packages for robust signal and power rail protection.
FAQ
What does the "CA" suffix indicate in SM6T6V8CAHE3_B/H?
The "CA" suffix in SM6T6V8CAHE3_B/H denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage clamping in both polarities. This enables protection of AC-coupled or differential signal lines without regard to polarity, unlike unidirectional variants (e.g., SM6T6V8A) which require correct cathode orientation. The CA version is essential for applications like CAN bus or USB data lines.
Is SM6T6V8CAHE3_B/H qualified for automotive use?
Yes, SM6T6V8CAHE3_B/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for automotive powertrain, body electronics, and ADAS sensor modules where reliability under harsh conditions is mandatory.
What is the clamping voltage of SM6T6V8CAHE3_B/H at rated peak pulse current?
The maximum clamping voltage (VC) of SM6T6V8CAHE3_B/H is 10.5 V at 57 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured across the device terminals during surge testing and represents the upper limit of voltage imposed on protected circuitry - critical for ensuring compatibility with 5 V logic ICs' absolute maximum ratings.
How does the SMB (DO-214AA) package of SM6T6V8CAHE3_B/H compare to SMA (DO-214AC)?
The SMB package used in SM6T6V8CAHE3_B/H measures 3.94 mm × 2.20 mm × 1.52 mm - larger than SMA (DO-214AC) at 3.30 mm × 2.18 mm × 1.27 mm - providing higher thermal mass and lower thermal resistance (RθJA = 100 °C/W vs. ~120 °C/W for SMA). This improves power derating and surge survivability, especially in high-ambient automotive applications.
What is the maximum reverse leakage current of SM6T6V8CAHE3_B/H at its stand-off voltage?
At the maximum reverse stand-off voltage (VWM) of 5.80 V, SM6T6V8CAHE3_B/H exhibits a maximum reverse leakage current (ID) of 1000 μA at 25 °C. This low leakage ensures minimal power loss and signal interference in standby or low-power modes - particularly important in battery-operated sensor nodes and always-on automotive modules.
SM6T6V8CAHE3_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)
SM6T6V8CAHE3_B/H FAQ
1.How can I place an order for SM6T6V8CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8CAHE3_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 SM6T6V8CAHE3_B/H reliable?
The price and inventory of SM6T6V8CAHE3_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 SM6T6V8CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for SM6T6V8CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8CAHE3_B/H?
SM6T6V8CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8CAHE3_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 SM6T6V8CAHE3_B/H?
For technical support, including SM6T6V8CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8CAHE3_B/H requirements.
6.How does Aetrix verify that SM6T6V8CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T6V8CAHE3_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 SM6T6V8CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of SM6T6V8CAHE3_B/H?
All SM6T6V8CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8CAHE3_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 SM6T6V8CAHE3_B/H part is unused and in its original packaging.
Return procedure for SM6T6V8CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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