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Vishay General Semiconductor - Diodes Division SM6T150CAHE3_A/I
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- Part No.:
- SM6T150CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T150CAHE3_A/I.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,758
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Product details
Overview
SM6T150CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 150 V standoff voltage (VWM), 207 V maximum clamping voltage (VC) at 2.9 A IPPM (10/1000 μs), 600 W peak pulse power rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SM6T150CAHE3_A/I datasheet, SM6T150CAHE3_A/I pinout, SM6T150CAHE3_A/I application, or SM6T150CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.38), RoHS-compliant and halogen-free construction, and suitability for IEC 61000-4-2/4-4/4-5 compliant protection circuits in harsh environments.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during ESD and surge events, with symmetrical breakdown behavior in both polarities due to its bidirectional architecture. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and robust surge handling up to 100 A IFSM (unidirectional reference only; not applicable to CA variant).
The device is thermally optimized for surface-mount PCB layouts using 0.2" × 0.2" copper pads per terminal, delivering RθJA = 100 °C/W and RθJL = 20 °C/W. It meets MSL Level 1 (260 °C reflow peak) and supports automated placement in high-reliability automotive and industrial assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 143 V / 158 V at IT = 1 mA - Confirmed bidirectional breakdown threshold range |
| VC @ IPPM | 207 V at 2.9 A (10/1000 μs) - Clamping voltage limiting downstream circuit stress during surge |
| PPPM | 600 W - Peak transient energy absorption capacity under standardized waveform |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive zones |
| Package | SMB (DO-214AA) - Low-profile SMT footprint (4.57 mm × 3.94 mm) compatible with IPC-7351B standard |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic modules requiring reliability under thermal cycling and humidity bias |
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 serve identically as input/output nodes for bidirectional clamping; no cathode band marking |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when properly laid out |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and long-term parameter stability over temperature and life |
| AEC-Q101 qualification | Validated for automotive applications including body control modules, infotainment interfaces, and sensor hubs |
| Low inductance design | Minimizes voltage overshoot during fast transients (e.g., ESD ±15 kV contact discharge) |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN/CAN physical layer transceivers from load dump and ESD in vehicle door modules and seat controllers. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential bus lines (CANH/CANL) or supply rails (VCC/GND). Use Value: Limits transient voltage to ≤207 V during 10/1000 μs surges, preventing latch-up or damage to ISO 11898-2 compliant transceivers. |
Use Scenario: Safeguarding RS-485/RS-422 communication ports in PLC backplanes and motor drives against induced lightning surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS deployed between data lines and ground to shunt common-mode transients. Use Value: Maintains signal integrity by clamping within 207 V while supporting >1 Mbps data rates due to low junction capacitance (~100 pF at 0 V). |
| Consumer Power Adapter Input Stage | Telecom DSL Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters exposed to mains-borne surges and switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output rails (e.g., +12 V / GND) to absorb repetitive transients. Use Value: Handles 600 W pulses without degradation, enabling compliance with UL 62368-1 transient immunity requirements. |
Use Scenario: Primary protection for ADSL/VDSL line interface ICs against longitudinal surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Bidirectional clamp installed between tip/ring and ground to suppress common-mode surges per GR-1089-CORE. Use Value: Withstands 10/700 μs telecom surges up to 4 kV with clamping <207 V, preserving xDSL chipset functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150CA | Same VWM (150 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA) | Limited to lower-energy transients; less suitable for automotive under-hood locations due to thermal derating | Select when cost sensitivity outweighs peak power requirement and board space permits larger package |
| 1.5KE150CA | Higher PPPM (1500 W), axial DO-201 package, non-SMT, higher inductance | Requires through-hole assembly; unsuitable for high-density or automated SMT production | Choose only for legacy through-hole designs where manual rework or prototyping justifies assembly overhead |
Compared with SMAJ150CA and 1.5KE150CA, SM6T150CAHE3_A/I delivers optimal balance of 600 W surge handling, AEC-Q101 qualification, SMB footprint efficiency, and low-inductance SMT performance-making it preferred for new automotive and industrial designs requiring automated manufacturing and IEC/ISO compliance.
Availability
SM6T150CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus systems, and telecom line card protection requiring stable component supply, AEC-Q101 traceability, and RoHS/halogen-free compliance.
Supply support for SM6T150CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SM6T Series is engineered for robust transient suppression in automotive, industrial, and telecom infrastructure-designed to meet stringent surge immunity standards while supporting high-volume SMT manufacturing.
FAQ
What is the clamping voltage of SM6T150CAHE3_A/I at rated peak pulse current?
The SM6T150CAHE3_A/I has a maximum clamping voltage (VC) of 207 V when subjected to a 10/1000 μs waveform at IPPM = 2.9 A. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping ratio (VC/VWM = 207/150 ≈ 1.38) reflects efficient transient suppression capability.
Is SM6T150CAHE3_A/I suitable for automotive applications?
Yes, SM6T150CAHE3_A/I is AEC-Q101 qualified and designated with the "HE3" suffix, confirming its validation for automotive-grade reliability. It supports operating junction temperatures up to +150 °C and meets MSL Level 1 reflow requirements-making it appropriate for engine control units, ADAS sensors, and body electronics where sustained thermal and mechanical stress occurs.
How does the bidirectional configuration of SM6T150CAHE3_A/I affect its usage?
The "CA" suffix denotes bidirectional construction, meaning SM6T150CAHE3_A/I provides symmetrical clamping in both polarities without cathode marking. This eliminates orientation concerns during placement and enables direct protection of AC signals, differential buses (e.g., CAN, RS-485), or floating power domains-unlike unidirectional variants that require correct anode/cathode alignment.
What is the thermal resistance of SM6T150CAHE3_A/I under standard mounting conditions?
Under standard test conditions (0.2" × 0.2" copper pads per terminal), SM6T150CAHE3_A/I exhibits RθJA = 100 °C/W (junction-to-ambient) and RθJL = 20 °C/W (junction-to-lead). These values enable accurate thermal modeling for PCB layout optimization and ensure safe operation at PD = 5.0 W when ambient temperature remains ≤50 °C with adequate copper area.
Does SM6T150CAHE3_A/I meet RoHS and halogen-free requirements?
Yes, SM6T150CAHE3_A/I carries the "HE3" suffix, indicating it is RoHS-compliant and halogen-free per Vishay's material categorization standard (document 99912). The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the molding compound meets UL 94 V-0 flammability rating.
SM6T150CAHE3_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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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 (SMBJ)
SM6T150CAHE3_A/I FAQ
1.How can I place an order for SM6T150CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T150CAHE3_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 SM6T150CAHE3_A/I reliable?
The price and inventory of SM6T150CAHE3_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 SM6T150CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T150CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T150CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T150CAHE3_A/I?
SM6T150CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T150CAHE3_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 SM6T150CAHE3_A/I?
For technical support, including SM6T150CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T150CAHE3_A/I requirements.
6.How does Aetrix verify that SM6T150CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T150CAHE3_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 SM6T150CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T150CAHE3_A/I?
All SM6T150CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T150CAHE3_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 SM6T150CAHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T150CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T150CAHE3_A/I Tags
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